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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 20:22:43,029 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 20:22:43,032 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 20:22:43,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 20:22:43,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 20:22:43,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 20:22:43,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 20:22:43,061 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 20:22:43,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 20:22:43,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 20:22:43,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 20:22:43,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 20:22:43,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 20:22:43,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 20:22:43,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 20:22:43,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 20:22:43,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 20:22:43,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 20:22:43,074 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 20:22:43,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 20:22:43,077 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 20:22:43,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 20:22:43,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 20:22:43,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 20:22:43,082 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 20:22:43,082 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 20:22:43,083 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 20:22:43,083 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 20:22:43,084 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 20:22:43,085 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 20:22:43,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 20:22:43,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 20:22:43,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 20:22:43,088 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 20:22:43,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 20:22:43,089 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 20:22:43,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 20:22:43,090 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 20:22:43,090 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 20:22:43,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 20:22:43,091 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 20:22:43,092 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 20:22:43,117 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 20:22:43,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 20:22:43,118 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 20:22:43,119 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 20:22:43,119 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 20:22:43,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 20:22:43,120 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 20:22:43,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 20:22:43,120 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 20:22:43,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 20:22:43,120 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 20:22:43,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 20:22:43,121 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 20:22:43,121 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 20:22:43,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 20:22:43,121 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 20:22:43,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 20:22:43,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 20:22:43,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 20:22:43,122 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 20:22:43,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 20:22:43,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 20:22:43,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 20:22:43,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 20:22:43,123 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 20:22:43,124 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 20:22:43,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 20:22:43,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 20:22:43,124 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 20:22:43,391 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 20:22:43,404 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 20:22:43,408 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 20:22:43,409 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 20:22:43,410 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 20:22:43,410 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2019-10-13 20:22:43,474 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83d0df553/a8143d1d00af4e9eb6e49d65af2c90e1/FLAG0fcda9cff [2019-10-13 20:22:44,255 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 20:22:44,256 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2019-10-13 20:22:44,293 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83d0df553/a8143d1d00af4e9eb6e49d65af2c90e1/FLAG0fcda9cff [2019-10-13 20:22:44,347 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83d0df553/a8143d1d00af4e9eb6e49d65af2c90e1 [2019-10-13 20:22:44,358 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 20:22:44,359 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 20:22:44,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 20:22:44,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 20:22:44,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 20:22:44,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:22:44" (1/1) ... [2019-10-13 20:22:44,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5287bcf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:44, skipping insertion in model container [2019-10-13 20:22:44,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:22:44" (1/1) ... [2019-10-13 20:22:44,378 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 20:22:44,483 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 20:22:45,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:22:45,941 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 20:22:46,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:22:46,306 INFO L192 MainTranslator]: Completed translation [2019-10-13 20:22:46,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:46 WrapperNode [2019-10-13 20:22:46,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 20:22:46,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 20:22:46,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 20:22:46,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 20:22:46,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:46" (1/1) ... [2019-10-13 20:22:46,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:46" (1/1) ... [2019-10-13 20:22:46,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:46" (1/1) ... [2019-10-13 20:22:46,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:46" (1/1) ... [2019-10-13 20:22:46,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:46" (1/1) ... [2019-10-13 20:22:46,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:46" (1/1) ... [2019-10-13 20:22:46,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:46" (1/1) ... [2019-10-13 20:22:46,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 20:22:46,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 20:22:46,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 20:22:46,546 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 20:22:46,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:46" (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 20:22:46,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 20:22:46,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 20:22:46,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 20:22:46,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2019-10-13 20:22:46,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2019-10-13 20:22:46,645 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2019-10-13 20:22:46,646 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2019-10-13 20:22:46,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-13 20:22:46,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 20:22:46,647 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 20:22:46,647 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 20:22:46,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 20:22:46,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 20:22:46,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 20:22:46,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 20:22:46,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 20:22:46,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 20:22:46,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 20:22:46,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 20:22:46,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-13 20:22:46,651 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2019-10-13 20:22:46,651 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2019-10-13 20:22:46,652 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2019-10-13 20:22:46,652 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2019-10-13 20:22:46,652 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2019-10-13 20:22:46,652 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2019-10-13 20:22:46,652 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2019-10-13 20:22:46,652 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2019-10-13 20:22:46,652 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_hid_report_descriptor [2019-10-13 20:22:46,653 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_input_open [2019-10-13 20:22:46,653 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_input_close [2019-10-13 20:22:46,653 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_setup_caps [2019-10-13 20:22:46,653 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_urb_callback [2019-10-13 20:22:46,653 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_probe [2019-10-13 20:22:46,653 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_disconnect [2019-10-13 20:22:46,653 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_driverinfo_table_init [2019-10-13 20:22:46,654 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_driverinfo_table_exit [2019-10-13 20:22:46,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2019-10-13 20:22:46,654 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 20:22:46,655 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-10-13 20:22:46,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2019-10-13 20:22:46,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2019-10-13 20:22:46,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev_4 [2019-10-13 20:22:46,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_5 [2019-10-13 20:22:46,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_6 [2019-10-13 20:22:46,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_7 [2019-10-13 20:22:46,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_8 [2019-10-13 20:22:46,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_9 [2019-10-13 20:22:46,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_10 [2019-10-13 20:22:46,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_11 [2019-10-13 20:22:46,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_12 [2019-10-13 20:22:46,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2019-10-13 20:22:46,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2019-10-13 20:22:46,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2019-10-13 20:22:46,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2019-10-13 20:22:46,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2019-10-13 20:22:46,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2019-10-13 20:22:46,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2019-10-13 20:22:46,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2019-10-13 20:22:46,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2019-10-13 20:22:46,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2019-10-13 20:22:46,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2019-10-13 20:22:46,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2019-10-13 20:22:46,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2019-10-13 20:22:46,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2019-10-13 20:22:46,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2019-10-13 20:22:46,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2019-10-13 20:22:46,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 20:22:46,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2019-10-13 20:22:46,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __usb_get_extra_descriptor [2019-10-13 20:22:46,661 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-13 20:22:46,661 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-13 20:22:46,661 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-13 20:22:46,662 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-13 20:22:46,662 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2019-10-13 20:22:46,663 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2019-10-13 20:22:46,663 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2019-10-13 20:22:46,663 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2019-10-13 20:22:46,663 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2019-10-13 20:22:46,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 20:22:46,664 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2019-10-13 20:22:46,664 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-10-13 20:22:46,665 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-10-13 20:22:46,665 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-13 20:22:46,665 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-10-13 20:22:46,666 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-10-13 20:22:46,667 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-13 20:22:46,668 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 20:22:46,668 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 20:22:46,668 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 20:22:46,669 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2019-10-13 20:22:46,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 20:22:46,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 20:22:46,669 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2019-10-13 20:22:46,669 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2019-10-13 20:22:46,669 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2019-10-13 20:22:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 20:22:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2019-10-13 20:22:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2019-10-13 20:22:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2019-10-13 20:22:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-10-13 20:22:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-13 20:22:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-13 20:22:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-13 20:22:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-13 20:22:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_9 [2019-10-13 20:22:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_7 [2019-10-13 20:22:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure __usb_get_extra_descriptor [2019-10-13 20:22:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-10-13 20:22:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev_4 [2019-10-13 20:22:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2019-10-13 20:22:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 20:22:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 20:22:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-13 20:22:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_11 [2019-10-13 20:22:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-13 20:22:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_12 [2019-10-13 20:22:46,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_6 [2019-10-13 20:22:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_5 [2019-10-13 20:22:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_8 [2019-10-13 20:22:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_10 [2019-10-13 20:22:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2019-10-13 20:22:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2019-10-13 20:22:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-10-13 20:22:46,678 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-10-13 20:22:46,678 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-10-13 20:22:46,678 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-10-13 20:22:46,678 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-13 20:22:46,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2019-10-13 20:22:46,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2019-10-13 20:22:46,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2019-10-13 20:22:46,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2019-10-13 20:22:46,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2019-10-13 20:22:46,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2019-10-13 20:22:46,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2019-10-13 20:22:46,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2019-10-13 20:22:46,681 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 20:22:46,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 20:22:46,684 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 20:22:46,685 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 20:22:46,685 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 20:22:46,685 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 20:22:46,686 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 20:22:46,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 20:22:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 20:22:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 20:22:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 20:22:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 20:22:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 20:22:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 20:22:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 20:22:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 20:22:46,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 20:22:46,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 20:22:46,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 20:22:46,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-13 20:22:46,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2019-10-13 20:22:46,695 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2019-10-13 20:22:46,695 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2019-10-13 20:22:46,695 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2019-10-13 20:22:46,696 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2019-10-13 20:22:46,696 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2019-10-13 20:22:46,696 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2019-10-13 20:22:46,696 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2019-10-13 20:22:46,696 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2019-10-13 20:22:46,696 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2019-10-13 20:22:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2019-10-13 20:22:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2019-10-13 20:22:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2019-10-13 20:22:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2019-10-13 20:22:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 20:22:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure parse_hid_report_descriptor [2019-10-13 20:22:46,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2019-10-13 20:22:46,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 20:22:46,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 20:22:46,698 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_input_open [2019-10-13 20:22:46,698 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_input_close [2019-10-13 20:22:46,698 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_setup_caps [2019-10-13 20:22:46,698 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_urb_callback [2019-10-13 20:22:46,699 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_probe [2019-10-13 20:22:46,699 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_disconnect [2019-10-13 20:22:46,699 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_driverinfo_table_init [2019-10-13 20:22:46,699 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_driverinfo_table_exit [2019-10-13 20:22:46,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 20:22:46,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 20:22:46,699 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 20:22:46,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2019-10-13 20:22:46,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2019-10-13 20:22:46,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2019-10-13 20:22:46,700 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 20:22:46,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2019-10-13 20:22:46,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2019-10-13 20:22:46,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2019-10-13 20:22:46,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2019-10-13 20:22:46,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2019-10-13 20:22:46,701 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 20:22:46,702 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 20:22:46,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 20:22:46,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 20:22:46,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 20:22:46,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 20:22:46,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 20:22:46,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 20:22:47,673 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 20:22:53,583 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2019-10-13 20:22:55,510 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 20:22:55,510 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-13 20:22:55,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:22:55 BoogieIcfgContainer [2019-10-13 20:22:55,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 20:22:55,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 20:22:55,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 20:22:55,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 20:22:55,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:22:44" (1/3) ... [2019-10-13 20:22:55,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ac8b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:22:55, skipping insertion in model container [2019-10-13 20:22:55,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:46" (2/3) ... [2019-10-13 20:22:55,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ac8b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:22:55, skipping insertion in model container [2019-10-13 20:22:55,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:22:55" (3/3) ... [2019-10-13 20:22:55,520 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2019-10-13 20:22:55,530 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 20:22:55,539 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 20:22:55,550 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 20:22:55,583 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 20:22:55,584 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 20:22:55,584 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 20:22:55,584 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 20:22:55,584 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 20:22:55,584 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 20:22:55,584 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 20:22:55,584 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 20:22:55,619 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states. [2019-10-13 20:22:55,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-10-13 20:22:55,628 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:55,629 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:22:55,632 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:55,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:55,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1102229279, now seen corresponding path program 1 times [2019-10-13 20:22:55,650 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:55,650 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889984548] [2019-10-13 20:22:55,650 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:55,651 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:55,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:22:56,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:22:56,472 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 20:22:56,473 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889984548] [2019-10-13 20:22:56,474 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:22:56,474 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:22:56,475 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825988333] [2019-10-13 20:22:56,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:22:56,482 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:22:56,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:22:56,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:22:56,501 INFO L87 Difference]: Start difference. First operand 791 states. Second operand 3 states. [2019-10-13 20:22:59,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:22:59,249 INFO L93 Difference]: Finished difference Result 1785 states and 2404 transitions. [2019-10-13 20:22:59,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:22:59,252 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2019-10-13 20:22:59,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:22:59,293 INFO L225 Difference]: With dead ends: 1785 [2019-10-13 20:22:59,293 INFO L226 Difference]: Without dead ends: 1155 [2019-10-13 20:22:59,306 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:22:59,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2019-10-13 20:22:59,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 1155. [2019-10-13 20:22:59,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1155 states. [2019-10-13 20:22:59,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1512 transitions. [2019-10-13 20:22:59,528 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1512 transitions. Word has length 39 [2019-10-13 20:22:59,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:22:59,529 INFO L462 AbstractCegarLoop]: Abstraction has 1155 states and 1512 transitions. [2019-10-13 20:22:59,529 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:22:59,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1512 transitions. [2019-10-13 20:22:59,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-13 20:22:59,540 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:59,540 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 20:22:59,544 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:59,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:59,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1160722183, now seen corresponding path program 1 times [2019-10-13 20:22:59,545 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:59,545 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276152483] [2019-10-13 20:22:59,545 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:59,545 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:59,545 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:22:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:22:59,902 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 20:22:59,903 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276152483] [2019-10-13 20:22:59,903 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:22:59,903 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:22:59,903 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619434005] [2019-10-13 20:22:59,906 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:22:59,906 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:22:59,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:22:59,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:22:59,907 INFO L87 Difference]: Start difference. First operand 1155 states and 1512 transitions. Second operand 3 states. [2019-10-13 20:23:00,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:23:00,299 INFO L93 Difference]: Finished difference Result 1181 states and 1544 transitions. [2019-10-13 20:23:00,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:23:00,300 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2019-10-13 20:23:00,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:23:00,308 INFO L225 Difference]: With dead ends: 1181 [2019-10-13 20:23:00,308 INFO L226 Difference]: Without dead ends: 1168 [2019-10-13 20:23:00,310 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:23:00,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2019-10-13 20:23:00,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1155. [2019-10-13 20:23:00,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1155 states. [2019-10-13 20:23:00,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1511 transitions. [2019-10-13 20:23:00,442 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1511 transitions. Word has length 55 [2019-10-13 20:23:00,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:23:00,443 INFO L462 AbstractCegarLoop]: Abstraction has 1155 states and 1511 transitions. [2019-10-13 20:23:00,443 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:23:00,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1511 transitions. [2019-10-13 20:23:00,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-13 20:23:00,447 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:23:00,448 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 20:23:00,448 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:23:00,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:23:00,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1103463881, now seen corresponding path program 1 times [2019-10-13 20:23:00,449 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:23:00,449 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519431709] [2019-10-13 20:23:00,450 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:00,450 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:00,450 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:23:00,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:23:00,798 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 20:23:00,798 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519431709] [2019-10-13 20:23:00,800 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:23:00,800 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:23:00,800 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388597480] [2019-10-13 20:23:00,801 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:23:00,802 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:23:00,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:23:00,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:23:00,802 INFO L87 Difference]: Start difference. First operand 1155 states and 1511 transitions. Second operand 3 states. [2019-10-13 20:23:00,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:23:00,923 INFO L93 Difference]: Finished difference Result 3422 states and 4518 transitions. [2019-10-13 20:23:00,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:23:00,924 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2019-10-13 20:23:00,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:23:00,941 INFO L225 Difference]: With dead ends: 3422 [2019-10-13 20:23:00,941 INFO L226 Difference]: Without dead ends: 2288 [2019-10-13 20:23:00,947 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:23:00,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2288 states. [2019-10-13 20:23:01,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2288 to 2278. [2019-10-13 20:23:01,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2278 states. [2019-10-13 20:23:01,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2278 states to 2278 states and 3002 transitions. [2019-10-13 20:23:01,052 INFO L78 Accepts]: Start accepts. Automaton has 2278 states and 3002 transitions. Word has length 55 [2019-10-13 20:23:01,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:23:01,053 INFO L462 AbstractCegarLoop]: Abstraction has 2278 states and 3002 transitions. [2019-10-13 20:23:01,053 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:23:01,053 INFO L276 IsEmpty]: Start isEmpty. Operand 2278 states and 3002 transitions. [2019-10-13 20:23:01,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-13 20:23:01,055 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:23:01,055 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 20:23:01,055 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:23:01,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:23:01,056 INFO L82 PathProgramCache]: Analyzing trace with hash 151857092, now seen corresponding path program 1 times [2019-10-13 20:23:01,056 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:23:01,056 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724825484] [2019-10-13 20:23:01,056 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:01,056 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:01,057 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:23:01,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:23:01,308 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 20:23:01,308 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724825484] [2019-10-13 20:23:01,309 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:23:01,309 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:23:01,309 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290133519] [2019-10-13 20:23:01,309 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:23:01,310 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:23:01,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:23:01,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:23:01,310 INFO L87 Difference]: Start difference. First operand 2278 states and 3002 transitions. Second operand 3 states. [2019-10-13 20:23:01,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:23:01,501 INFO L93 Difference]: Finished difference Result 6787 states and 8985 transitions. [2019-10-13 20:23:01,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:23:01,502 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2019-10-13 20:23:01,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:23:01,527 INFO L225 Difference]: With dead ends: 6787 [2019-10-13 20:23:01,528 INFO L226 Difference]: Without dead ends: 4530 [2019-10-13 20:23:01,537 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:23:01,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4530 states. [2019-10-13 20:23:01,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4530 to 4521. [2019-10-13 20:23:01,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4521 states. [2019-10-13 20:23:01,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4521 states to 4521 states and 5974 transitions. [2019-10-13 20:23:01,768 INFO L78 Accepts]: Start accepts. Automaton has 4521 states and 5974 transitions. Word has length 56 [2019-10-13 20:23:01,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:23:01,769 INFO L462 AbstractCegarLoop]: Abstraction has 4521 states and 5974 transitions. [2019-10-13 20:23:01,769 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:23:01,769 INFO L276 IsEmpty]: Start isEmpty. Operand 4521 states and 5974 transitions. [2019-10-13 20:23:01,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-13 20:23:01,771 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:23:01,771 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 20:23:01,771 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:23:01,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:23:01,772 INFO L82 PathProgramCache]: Analyzing trace with hash 412106458, now seen corresponding path program 1 times [2019-10-13 20:23:01,772 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:23:01,772 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825197024] [2019-10-13 20:23:01,772 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:01,773 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:01,773 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:23:01,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:23:02,036 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 20:23:02,037 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825197024] [2019-10-13 20:23:02,037 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:23:02,037 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:23:02,038 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137859558] [2019-10-13 20:23:02,038 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:23:02,039 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:23:02,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:23:02,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:23:02,039 INFO L87 Difference]: Start difference. First operand 4521 states and 5974 transitions. Second operand 3 states. [2019-10-13 20:23:02,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:23:02,292 INFO L93 Difference]: Finished difference Result 4528 states and 5980 transitions. [2019-10-13 20:23:02,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:23:02,293 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2019-10-13 20:23:02,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:23:02,319 INFO L225 Difference]: With dead ends: 4528 [2019-10-13 20:23:02,319 INFO L226 Difference]: Without dead ends: 4525 [2019-10-13 20:23:02,323 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:23:02,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4525 states. [2019-10-13 20:23:02,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4525 to 4522. [2019-10-13 20:23:02,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4522 states. [2019-10-13 20:23:02,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4522 states to 4522 states and 5975 transitions. [2019-10-13 20:23:02,555 INFO L78 Accepts]: Start accepts. Automaton has 4522 states and 5975 transitions. Word has length 57 [2019-10-13 20:23:02,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:23:02,556 INFO L462 AbstractCegarLoop]: Abstraction has 4522 states and 5975 transitions. [2019-10-13 20:23:02,556 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:23:02,556 INFO L276 IsEmpty]: Start isEmpty. Operand 4522 states and 5975 transitions. [2019-10-13 20:23:02,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-13 20:23:02,557 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:23:02,558 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 20:23:02,558 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:23:02,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:23:02,559 INFO L82 PathProgramCache]: Analyzing trace with hash -110092921, now seen corresponding path program 1 times [2019-10-13 20:23:02,559 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:23:02,559 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411066594] [2019-10-13 20:23:02,559 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:02,559 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:02,560 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:23:02,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:23:02,780 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 20:23:02,780 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411066594] [2019-10-13 20:23:02,781 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:23:02,781 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:23:02,781 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921266408] [2019-10-13 20:23:02,782 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:23:02,782 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:23:02,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:23:02,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:23:02,783 INFO L87 Difference]: Start difference. First operand 4522 states and 5975 transitions. Second operand 3 states. [2019-10-13 20:23:02,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:23:02,901 INFO L93 Difference]: Finished difference Result 4524 states and 5976 transitions. [2019-10-13 20:23:02,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:23:02,901 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2019-10-13 20:23:02,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:23:02,926 INFO L225 Difference]: With dead ends: 4524 [2019-10-13 20:23:02,926 INFO L226 Difference]: Without dead ends: 4521 [2019-10-13 20:23:02,930 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:23:02,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4521 states. [2019-10-13 20:23:03,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4521 to 4521. [2019-10-13 20:23:03,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4521 states. [2019-10-13 20:23:03,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4521 states to 4521 states and 5973 transitions. [2019-10-13 20:23:03,132 INFO L78 Accepts]: Start accepts. Automaton has 4521 states and 5973 transitions. Word has length 58 [2019-10-13 20:23:03,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:23:03,133 INFO L462 AbstractCegarLoop]: Abstraction has 4521 states and 5973 transitions. [2019-10-13 20:23:03,133 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:23:03,133 INFO L276 IsEmpty]: Start isEmpty. Operand 4521 states and 5973 transitions. [2019-10-13 20:23:03,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-13 20:23:03,134 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:23:03,135 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 20:23:03,135 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:23:03,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:23:03,135 INFO L82 PathProgramCache]: Analyzing trace with hash 881600381, now seen corresponding path program 1 times [2019-10-13 20:23:03,135 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:23:03,136 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410382516] [2019-10-13 20:23:03,136 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:03,136 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:03,136 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:23:03,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:23:03,358 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 20:23:03,359 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410382516] [2019-10-13 20:23:03,359 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:23:03,359 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:23:03,359 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675347633] [2019-10-13 20:23:03,360 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:23:03,360 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:23:03,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:23:03,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:23:03,361 INFO L87 Difference]: Start difference. First operand 4521 states and 5973 transitions. Second operand 3 states. [2019-10-13 20:23:03,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:23:03,538 INFO L93 Difference]: Finished difference Result 4523 states and 5974 transitions. [2019-10-13 20:23:03,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:23:03,539 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2019-10-13 20:23:03,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:23:03,570 INFO L225 Difference]: With dead ends: 4523 [2019-10-13 20:23:03,570 INFO L226 Difference]: Without dead ends: 4501 [2019-10-13 20:23:03,574 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:23:03,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4501 states. [2019-10-13 20:23:03,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4501 to 4501. [2019-10-13 20:23:03,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4501 states. [2019-10-13 20:23:03,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4501 states to 4501 states and 5949 transitions. [2019-10-13 20:23:03,822 INFO L78 Accepts]: Start accepts. Automaton has 4501 states and 5949 transitions. Word has length 59 [2019-10-13 20:23:03,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:23:03,823 INFO L462 AbstractCegarLoop]: Abstraction has 4501 states and 5949 transitions. [2019-10-13 20:23:03,823 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:23:03,823 INFO L276 IsEmpty]: Start isEmpty. Operand 4501 states and 5949 transitions. [2019-10-13 20:23:03,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2019-10-13 20:23:03,838 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:23:03,839 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:23:03,839 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:23:03,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:23:03,839 INFO L82 PathProgramCache]: Analyzing trace with hash -240494133, now seen corresponding path program 1 times [2019-10-13 20:23:03,840 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:23:03,840 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202345827] [2019-10-13 20:23:03,840 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:03,843 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:03,843 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:23:03,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:23:04,074 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-13 20:23:04,074 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202345827] [2019-10-13 20:23:04,075 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:23:04,075 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:23:04,075 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980969196] [2019-10-13 20:23:04,076 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:23:04,076 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:23:04,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:23:04,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:23:04,077 INFO L87 Difference]: Start difference. First operand 4501 states and 5949 transitions. Second operand 3 states. [2019-10-13 20:23:04,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:23:04,699 INFO L93 Difference]: Finished difference Result 9158 states and 12119 transitions. [2019-10-13 20:23:04,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:23:04,700 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 169 [2019-10-13 20:23:04,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:23:04,738 INFO L225 Difference]: With dead ends: 9158 [2019-10-13 20:23:04,739 INFO L226 Difference]: Without dead ends: 4678 [2019-10-13 20:23:04,759 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:23:04,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4678 states. [2019-10-13 20:23:04,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4678 to 4601. [2019-10-13 20:23:04,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4601 states. [2019-10-13 20:23:04,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4601 states to 4601 states and 6092 transitions. [2019-10-13 20:23:04,987 INFO L78 Accepts]: Start accepts. Automaton has 4601 states and 6092 transitions. Word has length 169 [2019-10-13 20:23:04,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:23:04,988 INFO L462 AbstractCegarLoop]: Abstraction has 4601 states and 6092 transitions. [2019-10-13 20:23:04,988 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:23:04,988 INFO L276 IsEmpty]: Start isEmpty. Operand 4601 states and 6092 transitions. [2019-10-13 20:23:04,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-10-13 20:23:04,993 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:23:04,993 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:23:04,994 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:23:04,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:23:04,994 INFO L82 PathProgramCache]: Analyzing trace with hash -981653508, now seen corresponding path program 1 times [2019-10-13 20:23:04,994 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:23:04,995 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581604986] [2019-10-13 20:23:04,995 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:04,995 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:04,995 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:23:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:23:05,513 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-13 20:23:05,514 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581604986] [2019-10-13 20:23:05,514 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:23:05,515 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 20:23:05,515 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2395173] [2019-10-13 20:23:05,516 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 20:23:05,516 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:23:05,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 20:23:05,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 20:23:05,517 INFO L87 Difference]: Start difference. First operand 4601 states and 6092 transitions. Second operand 6 states. [2019-10-13 20:23:08,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:23:08,988 INFO L93 Difference]: Finished difference Result 13953 states and 18528 transitions. [2019-10-13 20:23:08,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 20:23:08,989 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 188 [2019-10-13 20:23:08,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:23:09,049 INFO L225 Difference]: With dead ends: 13953 [2019-10-13 20:23:09,050 INFO L226 Difference]: Without dead ends: 9373 [2019-10-13 20:23:09,076 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-10-13 20:23:09,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9373 states. [2019-10-13 20:23:09,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9373 to 4705. [2019-10-13 20:23:09,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4705 states. [2019-10-13 20:23:09,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4705 states to 4705 states and 6248 transitions. [2019-10-13 20:23:09,505 INFO L78 Accepts]: Start accepts. Automaton has 4705 states and 6248 transitions. Word has length 188 [2019-10-13 20:23:09,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:23:09,508 INFO L462 AbstractCegarLoop]: Abstraction has 4705 states and 6248 transitions. [2019-10-13 20:23:09,508 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 20:23:09,508 INFO L276 IsEmpty]: Start isEmpty. Operand 4705 states and 6248 transitions. [2019-10-13 20:23:09,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-10-13 20:23:09,516 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:23:09,516 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:23:09,516 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:23:09,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:23:09,517 INFO L82 PathProgramCache]: Analyzing trace with hash -841104898, now seen corresponding path program 1 times [2019-10-13 20:23:09,517 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:23:09,517 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702989643] [2019-10-13 20:23:09,517 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:09,518 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:09,518 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:23:09,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:23:10,154 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 20:23:10,155 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702989643] [2019-10-13 20:23:10,155 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972283065] [2019-10-13 20:23:10,156 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true