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 0.1.24-13a467a-m [2019-10-15 00:21:44,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 00:21:44,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 00:21:44,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 00:21:44,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 00:21:44,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 00:21:44,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 00:21:44,755 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 00:21:44,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 00:21:44,764 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 00:21:44,765 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 00:21:44,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 00:21:44,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 00:21:44,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 00:21:44,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 00:21:44,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 00:21:44,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 00:21:44,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 00:21:44,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 00:21:44,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 00:21:44,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 00:21:44,785 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 00:21:44,786 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 00:21:44,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 00:21:44,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 00:21:44,791 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 00:21:44,791 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 00:21:44,793 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 00:21:44,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 00:21:44,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 00:21:44,795 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 00:21:44,796 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 00:21:44,797 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 00:21:44,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 00:21:44,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 00:21:44,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 00:21:44,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 00:21:44,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 00:21:44,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 00:21:44,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 00:21:44,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 00:21:44,804 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 [2019-10-15 00:21:44,831 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 00:21:44,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 00:21:44,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 00:21:44,833 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 00:21:44,833 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 00:21:44,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 00:21:44,833 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 00:21:44,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 00:21:44,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 00:21:44,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 00:21:44,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 00:21:44,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 00:21:44,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 00:21:44,835 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 00:21:44,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 00:21:44,835 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 00:21:44,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 00:21:44,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 00:21:44,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 00:21:44,836 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 00:21:44,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 00:21:44,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 00:21:44,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 00:21:44,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 00:21:44,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 00:21:44,839 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 00:21:44,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 00:21:44,840 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 00:21:44,840 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 [2019-10-15 00:21:45,112 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 00:21:45,124 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 00:21:45,130 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 00:21:45,131 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 00:21:45,132 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 00:21:45,132 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2019-10-15 00:21:45,221 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36ec2c3fc/a742d9f1dca84c8cb10582908707d3ab/FLAG53cba7cb9 [2019-10-15 00:21:46,034 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 00:21:46,035 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2019-10-15 00:21:46,079 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36ec2c3fc/a742d9f1dca84c8cb10582908707d3ab/FLAG53cba7cb9 [2019-10-15 00:21:46,530 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36ec2c3fc/a742d9f1dca84c8cb10582908707d3ab [2019-10-15 00:21:46,540 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 00:21:46,541 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 00:21:46,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 00:21:46,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 00:21:46,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 00:21:46,548 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:21:46" (1/1) ... [2019-10-15 00:21:46,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6361ab6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:46, skipping insertion in model container [2019-10-15 00:21:46,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:21:46" (1/1) ... [2019-10-15 00:21:46,558 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 00:21:46,676 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 00:21:47,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:21:48,041 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 00:21:48,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:21:48,612 INFO L192 MainTranslator]: Completed translation [2019-10-15 00:21:48,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:48 WrapperNode [2019-10-15 00:21:48,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 00:21:48,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 00:21:48,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 00:21:48,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 00:21:48,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:48" (1/1) ... [2019-10-15 00:21:48,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:48" (1/1) ... [2019-10-15 00:21:48,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:48" (1/1) ... [2019-10-15 00:21:48,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:48" (1/1) ... [2019-10-15 00:21:48,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:48" (1/1) ... [2019-10-15 00:21:48,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:48" (1/1) ... [2019-10-15 00:21:48,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:48" (1/1) ... [2019-10-15 00:21:48,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 00:21:48,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 00:21:48,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 00:21:48,928 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 00:21:48,930 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:48" (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 [2019-10-15 00:21:49,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 00:21:49,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 00:21:49,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-15 00:21:49,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2019-10-15 00:21:49,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2019-10-15 00:21:49,016 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2019-10-15 00:21:49,016 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2019-10-15 00:21:49,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-15 00:21:49,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-15 00:21:49,018 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-15 00:21:49,018 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-15 00:21:49,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-15 00:21:49,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-15 00:21:49,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-15 00:21:49,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-15 00:21:49,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-15 00:21:49,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-15 00:21:49,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-15 00:21:49,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-15 00:21:49,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-15 00:21:49,023 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2019-10-15 00:21:49,023 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2019-10-15 00:21:49,023 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2019-10-15 00:21:49,024 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2019-10-15 00:21:49,024 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2019-10-15 00:21:49,024 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2019-10-15 00:21:49,024 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2019-10-15 00:21:49,024 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2019-10-15 00:21:49,024 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_hid_report_descriptor [2019-10-15 00:21:49,025 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_input_open [2019-10-15 00:21:49,025 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_input_close [2019-10-15 00:21:49,025 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_setup_caps [2019-10-15 00:21:49,025 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_urb_callback [2019-10-15 00:21:49,025 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_probe [2019-10-15 00:21:49,025 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_disconnect [2019-10-15 00:21:49,026 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_driverinfo_table_init [2019-10-15 00:21:49,027 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_driverinfo_table_exit [2019-10-15 00:21:49,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2019-10-15 00:21:49,027 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 00:21:49,027 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-10-15 00:21:49,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2019-10-15 00:21:49,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2019-10-15 00:21:49,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev_4 [2019-10-15 00:21:49,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_5 [2019-10-15 00:21:49,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_6 [2019-10-15 00:21:49,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_7 [2019-10-15 00:21:49,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_8 [2019-10-15 00:21:49,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_9 [2019-10-15 00:21:49,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_10 [2019-10-15 00:21:49,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_11 [2019-10-15 00:21:49,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_12 [2019-10-15 00:21:49,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2019-10-15 00:21:49,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2019-10-15 00:21:49,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2019-10-15 00:21:49,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2019-10-15 00:21:49,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2019-10-15 00:21:49,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2019-10-15 00:21:49,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2019-10-15 00:21:49,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2019-10-15 00:21:49,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2019-10-15 00:21:49,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2019-10-15 00:21:49,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2019-10-15 00:21:49,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2019-10-15 00:21:49,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2019-10-15 00:21:49,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2019-10-15 00:21:49,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2019-10-15 00:21:49,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2019-10-15 00:21:49,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-15 00:21:49,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2019-10-15 00:21:49,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __usb_get_extra_descriptor [2019-10-15 00:21:49,033 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-15 00:21:49,034 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-15 00:21:49,034 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-15 00:21:49,035 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-15 00:21:49,035 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2019-10-15 00:21:49,035 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2019-10-15 00:21:49,035 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2019-10-15 00:21:49,036 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2019-10-15 00:21:49,036 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2019-10-15 00:21:49,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-15 00:21:49,037 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2019-10-15 00:21:49,037 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-10-15 00:21:49,038 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-10-15 00:21:49,038 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-15 00:21:49,038 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-10-15 00:21:49,039 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-10-15 00:21:49,039 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-15 00:21:49,041 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-15 00:21:49,041 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-15 00:21:49,041 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-15 00:21:49,041 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2019-10-15 00:21:49,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 00:21:49,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-15 00:21:49,042 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2019-10-15 00:21:49,042 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2019-10-15 00:21:49,042 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2019-10-15 00:21:49,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 00:21:49,042 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2019-10-15 00:21:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2019-10-15 00:21:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2019-10-15 00:21:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-10-15 00:21:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-15 00:21:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-15 00:21:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-15 00:21:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-15 00:21:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_9 [2019-10-15 00:21:49,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_7 [2019-10-15 00:21:49,044 INFO L130 BoogieDeclarations]: Found specification of procedure __usb_get_extra_descriptor [2019-10-15 00:21:49,044 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-10-15 00:21:49,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev_4 [2019-10-15 00:21:49,044 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2019-10-15 00:21:49,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 00:21:49,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 00:21:49,045 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-15 00:21:49,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_11 [2019-10-15 00:21:49,046 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-15 00:21:49,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_12 [2019-10-15 00:21:49,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_6 [2019-10-15 00:21:49,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_5 [2019-10-15 00:21:49,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_8 [2019-10-15 00:21:49,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_10 [2019-10-15 00:21:49,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2019-10-15 00:21:49,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2019-10-15 00:21:49,048 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-10-15 00:21:49,049 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-10-15 00:21:49,050 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-10-15 00:21:49,051 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-10-15 00:21:49,051 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-15 00:21:49,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2019-10-15 00:21:49,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2019-10-15 00:21:49,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2019-10-15 00:21:49,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2019-10-15 00:21:49,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2019-10-15 00:21:49,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2019-10-15 00:21:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2019-10-15 00:21:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2019-10-15 00:21:49,055 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-15 00:21:49,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-15 00:21:49,058 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-15 00:21:49,058 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-15 00:21:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-15 00:21:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 00:21:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 00:21:49,060 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 00:21:49,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-15 00:21:49,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 00:21:49,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 00:21:49,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 00:21:49,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-15 00:21:49,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-15 00:21:49,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-15 00:21:49,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-15 00:21:49,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-15 00:21:49,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-15 00:21:49,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-15 00:21:49,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-15 00:21:49,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2019-10-15 00:21:49,068 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2019-10-15 00:21:49,068 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2019-10-15 00:21:49,068 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2019-10-15 00:21:49,069 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2019-10-15 00:21:49,069 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2019-10-15 00:21:49,069 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2019-10-15 00:21:49,069 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2019-10-15 00:21:49,070 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2019-10-15 00:21:49,070 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2019-10-15 00:21:49,070 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2019-10-15 00:21:49,070 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2019-10-15 00:21:49,070 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2019-10-15 00:21:49,070 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2019-10-15 00:21:49,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 00:21:49,071 INFO L130 BoogieDeclarations]: Found specification of procedure parse_hid_report_descriptor [2019-10-15 00:21:49,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2019-10-15 00:21:49,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 00:21:49,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 00:21:49,071 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_input_open [2019-10-15 00:21:49,071 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_input_close [2019-10-15 00:21:49,072 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_setup_caps [2019-10-15 00:21:49,072 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_urb_callback [2019-10-15 00:21:49,072 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_probe [2019-10-15 00:21:49,072 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_disconnect [2019-10-15 00:21:49,072 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_driverinfo_table_init [2019-10-15 00:21:49,072 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_driverinfo_table_exit [2019-10-15 00:21:49,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-15 00:21:49,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-15 00:21:49,073 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 00:21:49,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2019-10-15 00:21:49,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2019-10-15 00:21:49,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2019-10-15 00:21:49,073 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-15 00:21:49,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2019-10-15 00:21:49,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2019-10-15 00:21:49,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2019-10-15 00:21:49,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2019-10-15 00:21:49,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2019-10-15 00:21:49,074 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-15 00:21:49,074 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 00:21:49,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 00:21:49,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 00:21:49,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 00:21:49,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 00:21:49,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-15 00:21:49,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-15 00:21:49,902 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-15 00:21:55,994 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2019-10-15 00:21:57,821 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 00:21:57,822 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-15 00:21:57,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:21:57 BoogieIcfgContainer [2019-10-15 00:21:57,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 00:21:57,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 00:21:57,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 00:21:57,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 00:21:57,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 12:21:46" (1/3) ... [2019-10-15 00:21:57,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c93fe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:21:57, skipping insertion in model container [2019-10-15 00:21:57,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:48" (2/3) ... [2019-10-15 00:21:57,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c93fe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:21:57, skipping insertion in model container [2019-10-15 00:21:57,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:21:57" (3/3) ... [2019-10-15 00:21:57,836 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2019-10-15 00:21:57,847 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 00:21:57,859 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 00:21:57,871 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 00:21:57,912 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 00:21:57,913 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 00:21:57,913 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 00:21:57,913 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 00:21:57,913 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 00:21:57,913 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 00:21:57,913 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 00:21:57,914 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 00:21:57,958 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states. [2019-10-15 00:21:57,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-10-15 00:21:57,971 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:57,972 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] [2019-10-15 00:21:57,976 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:57,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:57,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1102229279, now seen corresponding path program 1 times [2019-10-15 00:21:57,993 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:57,993 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780973768] [2019-10-15 00:21:57,994 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:57,994 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:57,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:58,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:58,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:21:58,865 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780973768] [2019-10-15 00:21:58,865 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:58,866 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:21:58,866 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245958536] [2019-10-15 00:21:58,871 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:21:58,874 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:58,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:21:58,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:21:58,892 INFO L87 Difference]: Start difference. First operand 791 states. Second operand 3 states. [2019-10-15 00:22:01,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:22:01,561 INFO L93 Difference]: Finished difference Result 1785 states and 2404 transitions. [2019-10-15 00:22:01,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:22:01,564 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2019-10-15 00:22:01,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:22:01,606 INFO L225 Difference]: With dead ends: 1785 [2019-10-15 00:22:01,606 INFO L226 Difference]: Without dead ends: 1155 [2019-10-15 00:22:01,619 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 [2019-10-15 00:22:01,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2019-10-15 00:22:01,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 1155. [2019-10-15 00:22:01,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1155 states. [2019-10-15 00:22:01,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1512 transitions. [2019-10-15 00:22:01,788 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1512 transitions. Word has length 39 [2019-10-15 00:22:01,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:22:01,789 INFO L462 AbstractCegarLoop]: Abstraction has 1155 states and 1512 transitions. [2019-10-15 00:22:01,789 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:22:01,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1512 transitions. [2019-10-15 00:22:01,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-15 00:22:01,793 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:22:01,793 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] [2019-10-15 00:22:01,794 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:22:01,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:22:01,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1160722183, now seen corresponding path program 1 times [2019-10-15 00:22:01,794 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:22:01,795 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373446591] [2019-10-15 00:22:01,795 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:01,795 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:01,795 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:22:01,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:22:02,284 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-15 00:22:02,285 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373446591] [2019-10-15 00:22:02,285 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:22:02,285 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:22:02,285 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121012616] [2019-10-15 00:22:02,288 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:22:02,288 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:22:02,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:22:02,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:22:02,289 INFO L87 Difference]: Start difference. First operand 1155 states and 1512 transitions. Second operand 3 states. [2019-10-15 00:22:02,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:22:02,850 INFO L93 Difference]: Finished difference Result 1181 states and 1544 transitions. [2019-10-15 00:22:02,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:22:02,851 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2019-10-15 00:22:02,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:22:02,863 INFO L225 Difference]: With dead ends: 1181 [2019-10-15 00:22:02,863 INFO L226 Difference]: Without dead ends: 1168 [2019-10-15 00:22:02,865 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 [2019-10-15 00:22:02,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2019-10-15 00:22:02,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1155. [2019-10-15 00:22:02,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1155 states. [2019-10-15 00:22:02,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1511 transitions. [2019-10-15 00:22:02,994 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1511 transitions. Word has length 55 [2019-10-15 00:22:02,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:22:02,994 INFO L462 AbstractCegarLoop]: Abstraction has 1155 states and 1511 transitions. [2019-10-15 00:22:02,995 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:22:02,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1511 transitions. [2019-10-15 00:22:03,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-15 00:22:03,005 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:22:03,006 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] [2019-10-15 00:22:03,006 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:22:03,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:22:03,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1103463881, now seen corresponding path program 1 times [2019-10-15 00:22:03,007 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:22:03,007 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169258683] [2019-10-15 00:22:03,007 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:03,008 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:03,008 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:22:03,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:22:03,394 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-15 00:22:03,394 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169258683] [2019-10-15 00:22:03,396 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:22:03,396 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:22:03,397 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148299492] [2019-10-15 00:22:03,397 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:22:03,398 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:22:03,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:22:03,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:22:03,398 INFO L87 Difference]: Start difference. First operand 1155 states and 1511 transitions. Second operand 3 states. [2019-10-15 00:22:03,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:22:03,526 INFO L93 Difference]: Finished difference Result 3422 states and 4518 transitions. [2019-10-15 00:22:03,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:22:03,527 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2019-10-15 00:22:03,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:22:03,545 INFO L225 Difference]: With dead ends: 3422 [2019-10-15 00:22:03,545 INFO L226 Difference]: Without dead ends: 2288 [2019-10-15 00:22:03,549 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 [2019-10-15 00:22:03,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2288 states. [2019-10-15 00:22:03,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2288 to 2278. [2019-10-15 00:22:03,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2278 states. [2019-10-15 00:22:03,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2278 states to 2278 states and 3002 transitions. [2019-10-15 00:22:03,677 INFO L78 Accepts]: Start accepts. Automaton has 2278 states and 3002 transitions. Word has length 55 [2019-10-15 00:22:03,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:22:03,679 INFO L462 AbstractCegarLoop]: Abstraction has 2278 states and 3002 transitions. [2019-10-15 00:22:03,679 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:22:03,679 INFO L276 IsEmpty]: Start isEmpty. Operand 2278 states and 3002 transitions. [2019-10-15 00:22:03,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-15 00:22:03,682 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:22:03,683 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] [2019-10-15 00:22:03,683 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:22:03,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:22:03,683 INFO L82 PathProgramCache]: Analyzing trace with hash 151857092, now seen corresponding path program 1 times [2019-10-15 00:22:03,684 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:22:03,684 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772628519] [2019-10-15 00:22:03,684 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:03,684 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:03,684 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:22:03,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:22:03,982 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-15 00:22:03,982 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772628519] [2019-10-15 00:22:03,983 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:22:03,983 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:22:03,983 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093387230] [2019-10-15 00:22:03,984 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:22:03,984 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:22:03,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:22:03,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:22:03,985 INFO L87 Difference]: Start difference. First operand 2278 states and 3002 transitions. Second operand 3 states. [2019-10-15 00:22:04,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:22:04,234 INFO L93 Difference]: Finished difference Result 6787 states and 8985 transitions. [2019-10-15 00:22:04,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:22:04,235 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2019-10-15 00:22:04,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:22:04,287 INFO L225 Difference]: With dead ends: 6787 [2019-10-15 00:22:04,287 INFO L226 Difference]: Without dead ends: 4530 [2019-10-15 00:22:04,299 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 [2019-10-15 00:22:04,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4530 states. [2019-10-15 00:22:04,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4530 to 4521. [2019-10-15 00:22:04,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4521 states. [2019-10-15 00:22:04,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4521 states to 4521 states and 5974 transitions. [2019-10-15 00:22:04,567 INFO L78 Accepts]: Start accepts. Automaton has 4521 states and 5974 transitions. Word has length 56 [2019-10-15 00:22:04,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:22:04,567 INFO L462 AbstractCegarLoop]: Abstraction has 4521 states and 5974 transitions. [2019-10-15 00:22:04,567 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:22:04,568 INFO L276 IsEmpty]: Start isEmpty. Operand 4521 states and 5974 transitions. [2019-10-15 00:22:04,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-15 00:22:04,571 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:22:04,572 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] [2019-10-15 00:22:04,572 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:22:04,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:22:04,574 INFO L82 PathProgramCache]: Analyzing trace with hash 412106458, now seen corresponding path program 1 times [2019-10-15 00:22:04,578 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:22:04,579 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933386345] [2019-10-15 00:22:04,579 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:04,579 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:04,579 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:22:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:22:04,856 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-15 00:22:04,857 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933386345] [2019-10-15 00:22:04,857 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:22:04,858 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:22:04,858 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296068328] [2019-10-15 00:22:04,858 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:22:04,859 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:22:04,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:22:04,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:22:04,860 INFO L87 Difference]: Start difference. First operand 4521 states and 5974 transitions. Second operand 3 states. [2019-10-15 00:22:05,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:22:05,119 INFO L93 Difference]: Finished difference Result 4528 states and 5980 transitions. [2019-10-15 00:22:05,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:22:05,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2019-10-15 00:22:05,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:22:05,145 INFO L225 Difference]: With dead ends: 4528 [2019-10-15 00:22:05,145 INFO L226 Difference]: Without dead ends: 4525 [2019-10-15 00:22:05,149 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 [2019-10-15 00:22:05,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4525 states. [2019-10-15 00:22:05,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4525 to 4522. [2019-10-15 00:22:05,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4522 states. [2019-10-15 00:22:05,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4522 states to 4522 states and 5975 transitions. [2019-10-15 00:22:05,363 INFO L78 Accepts]: Start accepts. Automaton has 4522 states and 5975 transitions. Word has length 57 [2019-10-15 00:22:05,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:22:05,364 INFO L462 AbstractCegarLoop]: Abstraction has 4522 states and 5975 transitions. [2019-10-15 00:22:05,364 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:22:05,364 INFO L276 IsEmpty]: Start isEmpty. Operand 4522 states and 5975 transitions. [2019-10-15 00:22:05,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-15 00:22:05,365 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:22:05,365 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] [2019-10-15 00:22:05,366 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:22:05,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:22:05,366 INFO L82 PathProgramCache]: Analyzing trace with hash -110092921, now seen corresponding path program 1 times [2019-10-15 00:22:05,366 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:22:05,367 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234442396] [2019-10-15 00:22:05,367 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:05,367 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:05,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:22:05,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:22:05,577 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-15 00:22:05,577 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234442396] [2019-10-15 00:22:05,578 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:22:05,578 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:22:05,578 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462628537] [2019-10-15 00:22:05,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:22:05,579 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:22:05,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:22:05,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:22:05,579 INFO L87 Difference]: Start difference. First operand 4522 states and 5975 transitions. Second operand 3 states. [2019-10-15 00:22:05,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:22:05,707 INFO L93 Difference]: Finished difference Result 4524 states and 5976 transitions. [2019-10-15 00:22:05,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:22:05,707 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2019-10-15 00:22:05,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:22:05,734 INFO L225 Difference]: With dead ends: 4524 [2019-10-15 00:22:05,735 INFO L226 Difference]: Without dead ends: 4521 [2019-10-15 00:22:05,739 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 [2019-10-15 00:22:05,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4521 states. [2019-10-15 00:22:05,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4521 to 4521. [2019-10-15 00:22:05,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4521 states. [2019-10-15 00:22:05,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4521 states to 4521 states and 5973 transitions. [2019-10-15 00:22:05,979 INFO L78 Accepts]: Start accepts. Automaton has 4521 states and 5973 transitions. Word has length 58 [2019-10-15 00:22:05,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:22:05,979 INFO L462 AbstractCegarLoop]: Abstraction has 4521 states and 5973 transitions. [2019-10-15 00:22:05,979 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:22:05,980 INFO L276 IsEmpty]: Start isEmpty. Operand 4521 states and 5973 transitions. [2019-10-15 00:22:05,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-15 00:22:05,981 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:22:05,981 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] [2019-10-15 00:22:05,981 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:22:05,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:22:05,981 INFO L82 PathProgramCache]: Analyzing trace with hash 881600381, now seen corresponding path program 1 times [2019-10-15 00:22:05,982 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:22:05,982 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451630214] [2019-10-15 00:22:05,982 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:05,982 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:05,982 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:22:06,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:22:06,218 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-15 00:22:06,219 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451630214] [2019-10-15 00:22:06,219 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:22:06,219 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:22:06,219 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362340114] [2019-10-15 00:22:06,220 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:22:06,220 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:22:06,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:22:06,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:22:06,221 INFO L87 Difference]: Start difference. First operand 4521 states and 5973 transitions. Second operand 3 states. [2019-10-15 00:22:06,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:22:06,434 INFO L93 Difference]: Finished difference Result 4523 states and 5974 transitions. [2019-10-15 00:22:06,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:22:06,435 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2019-10-15 00:22:06,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:22:06,460 INFO L225 Difference]: With dead ends: 4523 [2019-10-15 00:22:06,460 INFO L226 Difference]: Without dead ends: 4501 [2019-10-15 00:22:06,464 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 [2019-10-15 00:22:06,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4501 states. [2019-10-15 00:22:06,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4501 to 4501. [2019-10-15 00:22:06,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4501 states. [2019-10-15 00:22:06,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4501 states to 4501 states and 5949 transitions. [2019-10-15 00:22:06,740 INFO L78 Accepts]: Start accepts. Automaton has 4501 states and 5949 transitions. Word has length 59 [2019-10-15 00:22:06,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:22:06,740 INFO L462 AbstractCegarLoop]: Abstraction has 4501 states and 5949 transitions. [2019-10-15 00:22:06,741 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:22:06,741 INFO L276 IsEmpty]: Start isEmpty. Operand 4501 states and 5949 transitions. [2019-10-15 00:22:06,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2019-10-15 00:22:06,759 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:22:06,762 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] [2019-10-15 00:22:06,763 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:22:06,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:22:06,764 INFO L82 PathProgramCache]: Analyzing trace with hash -240494133, now seen corresponding path program 1 times [2019-10-15 00:22:06,764 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:22:06,764 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434616000] [2019-10-15 00:22:06,765 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:06,765 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:06,765 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:22:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:22:07,050 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-15 00:22:07,051 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434616000] [2019-10-15 00:22:07,051 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:22:07,051 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:22:07,052 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21649081] [2019-10-15 00:22:07,054 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:22:07,054 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:22:07,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:22:07,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:22:07,055 INFO L87 Difference]: Start difference. First operand 4501 states and 5949 transitions. Second operand 3 states. [2019-10-15 00:22:07,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:22:07,668 INFO L93 Difference]: Finished difference Result 9158 states and 12119 transitions. [2019-10-15 00:22:07,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:22:07,672 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 169 [2019-10-15 00:22:07,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:22:07,710 INFO L225 Difference]: With dead ends: 9158 [2019-10-15 00:22:07,710 INFO L226 Difference]: Without dead ends: 4678 [2019-10-15 00:22:07,729 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 [2019-10-15 00:22:07,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4678 states. [2019-10-15 00:22:07,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4678 to 4601. [2019-10-15 00:22:07,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4601 states. [2019-10-15 00:22:08,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4601 states to 4601 states and 6092 transitions. [2019-10-15 00:22:08,012 INFO L78 Accepts]: Start accepts. Automaton has 4601 states and 6092 transitions. Word has length 169 [2019-10-15 00:22:08,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:22:08,012 INFO L462 AbstractCegarLoop]: Abstraction has 4601 states and 6092 transitions. [2019-10-15 00:22:08,012 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:22:08,013 INFO L276 IsEmpty]: Start isEmpty. Operand 4601 states and 6092 transitions. [2019-10-15 00:22:08,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-10-15 00:22:08,022 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:22:08,022 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] [2019-10-15 00:22:08,022 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:22:08,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:22:08,023 INFO L82 PathProgramCache]: Analyzing trace with hash -981653508, now seen corresponding path program 1 times [2019-10-15 00:22:08,024 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:22:08,024 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233364810] [2019-10-15 00:22:08,024 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:08,024 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:08,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:22:08,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:22:08,408 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-15 00:22:08,408 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233364810] [2019-10-15 00:22:08,409 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:22:08,409 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 00:22:08,409 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829795450] [2019-10-15 00:22:08,410 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 00:22:08,411 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:22:08,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 00:22:08,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 00:22:08,411 INFO L87 Difference]: Start difference. First operand 4601 states and 6092 transitions. Second operand 6 states. [2019-10-15 00:22:11,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:22:11,662 INFO L93 Difference]: Finished difference Result 13953 states and 18528 transitions. [2019-10-15 00:22:11,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 00:22:11,663 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 188 [2019-10-15 00:22:11,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:22:11,711 INFO L225 Difference]: With dead ends: 13953 [2019-10-15 00:22:11,711 INFO L226 Difference]: Without dead ends: 9373 [2019-10-15 00:22:11,731 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 [2019-10-15 00:22:11,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9373 states. [2019-10-15 00:22:12,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9373 to 4705. [2019-10-15 00:22:12,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4705 states. [2019-10-15 00:22:12,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4705 states to 4705 states and 6248 transitions. [2019-10-15 00:22:12,041 INFO L78 Accepts]: Start accepts. Automaton has 4705 states and 6248 transitions. Word has length 188 [2019-10-15 00:22:12,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:22:12,043 INFO L462 AbstractCegarLoop]: Abstraction has 4705 states and 6248 transitions. [2019-10-15 00:22:12,043 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 00:22:12,043 INFO L276 IsEmpty]: Start isEmpty. Operand 4705 states and 6248 transitions. [2019-10-15 00:22:12,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-10-15 00:22:12,050 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:22:12,050 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] [2019-10-15 00:22:12,050 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:22:12,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:22:12,051 INFO L82 PathProgramCache]: Analyzing trace with hash -841104898, now seen corresponding path program 1 times [2019-10-15 00:22:12,051 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:22:12,051 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558390830] [2019-10-15 00:22:12,052 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:12,052 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:12,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:22:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:22:12,563 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 00:22:12,564 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558390830] [2019-10-15 00:22:12,564 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318914997] [2019-10-15 00:22:12,565 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