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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 11:40:40,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 11:40:40,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 11:40:40,943 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 11:40:40,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 11:40:40,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 11:40:40,946 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 11:40:40,947 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 11:40:40,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 11:40:40,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 11:40:40,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 11:40:40,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 11:40:40,952 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 11:40:40,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 11:40:40,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 11:40:40,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 11:40:40,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 11:40:40,957 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 11:40:40,959 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 11:40:40,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 11:40:40,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 11:40:40,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 11:40:40,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 11:40:40,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 11:40:40,968 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 11:40:40,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 11:40:40,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 11:40:40,970 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 11:40:40,971 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 11:40:40,972 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 11:40:40,972 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 11:40:40,973 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 11:40:40,974 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 11:40:40,974 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 11:40:40,975 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 11:40:40,976 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 11:40:40,976 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 11:40:40,977 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 11:40:40,977 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 11:40:40,978 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 11:40:40,979 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 11:40:40,980 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 11:40:40,995 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 11:40:40,996 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 11:40:40,996 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 11:40:40,996 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 11:40:40,997 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 11:40:40,997 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 11:40:40,997 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 11:40:40,997 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 11:40:40,998 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 11:40:40,998 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 11:40:40,999 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 11:40:40,999 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 11:40:40,999 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 11:40:40,999 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 11:40:40,999 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 11:40:41,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 11:40:41,000 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 11:40:41,000 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 11:40:41,000 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 11:40:41,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 11:40:41,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 11:40:41,001 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 11:40:41,001 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 11:40:41,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 11:40:41,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 11:40:41,002 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 11:40:41,002 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 11:40:41,002 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 11:40:41,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 11:40:41,002 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 11:40:41,032 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 11:40:41,043 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 11:40:41,047 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 11:40:41,048 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 11:40:41,048 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 11:40:41,049 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-09-10 11:40:41,112 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b7a1d17d/bb257ecc59d3425392e995705b6c6303/FLAGd52ffbb42 [2019-09-10 11:40:41,813 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 11:40:41,814 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-09-10 11:40:41,851 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b7a1d17d/bb257ecc59d3425392e995705b6c6303/FLAGd52ffbb42 [2019-09-10 11:40:41,938 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b7a1d17d/bb257ecc59d3425392e995705b6c6303 [2019-09-10 11:40:41,947 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 11:40:41,949 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 11:40:41,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 11:40:41,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 11:40:41,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 11:40:41,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:40:41" (1/1) ... [2019-09-10 11:40:41,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49981901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:40:41, skipping insertion in model container [2019-09-10 11:40:41,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:40:41" (1/1) ... [2019-09-10 11:40:41,967 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 11:40:42,078 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 11:40:43,155 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 11:40:43,188 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 11:40:43,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 11:40:43,434 INFO L192 MainTranslator]: Completed translation [2019-09-10 11:40:43,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:40:43 WrapperNode [2019-09-10 11:40:43,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 11:40:43,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 11:40:43,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 11:40:43,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 11:40:43,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:40:43" (1/1) ... [2019-09-10 11:40:43,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:40:43" (1/1) ... [2019-09-10 11:40:43,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:40:43" (1/1) ... [2019-09-10 11:40:43,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:40:43" (1/1) ... [2019-09-10 11:40:43,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:40:43" (1/1) ... [2019-09-10 11:40:43,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:40:43" (1/1) ... [2019-09-10 11:40:43,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:40:43" (1/1) ... [2019-09-10 11:40:43,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 11:40:43,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 11:40:43,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 11:40:43,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 11:40:43,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:40:43" (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 [2019-09-10 11:40:43,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 11:40:43,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 11:40:43,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-09-10 11:40:43,723 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2019-09-10 11:40:43,723 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2019-09-10 11:40:43,724 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2019-09-10 11:40:43,724 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2019-09-10 11:40:43,725 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-09-10 11:40:43,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-09-10 11:40:43,725 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_maxpacket [2019-09-10 11:40:43,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-09-10 11:40:43,726 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-09-10 11:40:43,727 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-09-10 11:40:43,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-10 11:40:43,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-09-10 11:40:43,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-09-10 11:40:43,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-09-10 11:40:43,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-09-10 11:40:43,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-10 11:40:43,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-09-10 11:40:43,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-10 11:40:43,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-10 11:40:43,731 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2019-09-10 11:40:43,731 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2019-09-10 11:40:43,732 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2019-09-10 11:40:43,732 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2019-09-10 11:40:43,732 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2019-09-10 11:40:43,732 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2019-09-10 11:40:43,733 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2019-09-10 11:40:43,733 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_irq [2019-09-10 11:40:43,733 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_open [2019-09-10 11:40:43,733 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_close [2019-09-10 11:40:43,733 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_probe [2019-09-10 11:40:43,733 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_disconnect [2019-09-10 11:40:43,734 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_init [2019-09-10 11:40:43,734 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_exit [2019-09-10 11:40:43,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2019-09-10 11:40:43,734 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 11:40:43,734 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-09-10 11:40:43,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_2 [2019-09-10 11:40:43,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2019-09-10 11:40:43,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2019-09-10 11:40:43,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_5 [2019-09-10 11:40:43,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_6 [2019-09-10 11:40:43,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_7 [2019-09-10 11:40:43,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_8 [2019-09-10 11:40:43,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_10 [2019-09-10 11:40:43,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_11 [2019-09-10 11:40:43,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-10 11:40:43,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2019-09-10 11:40:43,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2019-09-10 11:40:43,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2019-09-10 11:40:43,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2019-09-10 11:40:43,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2019-09-10 11:40:43,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2019-09-10 11:40:43,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2019-09-10 11:40:43,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2019-09-10 11:40:43,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2019-09-10 11:40:43,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2019-09-10 11:40:43,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2019-09-10 11:40:43,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2019-09-10 11:40:43,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2019-09-10 11:40:43,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2019-09-10 11:40:43,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2019-09-10 11:40:43,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-10 11:40:43,742 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-09-10 11:40:43,743 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-09-10 11:40:43,743 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2019-09-10 11:40:43,743 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2019-09-10 11:40:43,743 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2019-09-10 11:40:43,743 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2019-09-10 11:40:43,743 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2019-09-10 11:40:43,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-10 11:40:43,744 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-09-10 11:40:43,745 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2019-09-10 11:40:43,745 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2019-09-10 11:40:43,745 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-09-10 11:40:43,745 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-09-10 11:40:43,745 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-09-10 11:40:43,746 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-09-10 11:40:43,746 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-09-10 11:40:43,746 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-09-10 11:40:43,747 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-09-10 11:40:43,747 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-09-10 11:40:43,747 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-10 11:40:43,747 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-10 11:40:43,748 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-10 11:40:43,748 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-09-10 11:40:43,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 11:40:43,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-10 11:40:43,749 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2019-09-10 11:40:43,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 11:40:43,749 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2019-09-10 11:40:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2019-09-10 11:40:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-09-10 11:40:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-09-10 11:40:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-09-10 11:40:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-10 11:40:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-09-10 11:40:43,751 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2019-09-10 11:40:43,751 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2019-09-10 11:40:43,751 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-09-10 11:40:43,751 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-09-10 11:40:43,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_8 [2019-09-10 11:40:43,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_7 [2019-09-10 11:40:43,752 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-09-10 11:40:43,752 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2019-09-10 11:40:43,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 11:40:43,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 11:40:43,753 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-09-10 11:40:43,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_2 [2019-09-10 11:40:43,753 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-09-10 11:40:43,753 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-09-10 11:40:43,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_11 [2019-09-10 11:40:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_6 [2019-09-10 11:40:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-09-10 11:40:43,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_5 [2019-09-10 11:40:43,755 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-09-10 11:40:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_10 [2019-09-10 11:40:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2019-09-10 11:40:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2019-09-10 11:40:43,757 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-09-10 11:40:43,757 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-09-10 11:40:43,758 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-09-10 11:40:43,758 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-09-10 11:40:43,758 INFO L130 BoogieDeclarations]: Found specification of procedure usb_maxpacket [2019-09-10 11:40:43,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2019-09-10 11:40:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2019-09-10 11:40:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2019-09-10 11:40:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2019-09-10 11:40:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2019-09-10 11:40:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2019-09-10 11:40:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2019-09-10 11:40:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-10 11:40:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-10 11:40:43,761 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-09-10 11:40:43,761 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-09-10 11:40:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-09-10 11:40:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 11:40:43,766 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-10 11:40:43,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 11:40:43,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-10 11:40:43,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-10 11:40:43,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 11:40:43,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 11:40:43,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-09-10 11:40:43,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-09-10 11:40:43,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-09-10 11:40:43,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-09-10 11:40:43,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-10 11:40:43,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-09-10 11:40:43,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-10 11:40:43,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-09-10 11:40:43,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-10 11:40:43,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2019-09-10 11:40:43,779 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2019-09-10 11:40:43,779 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2019-09-10 11:40:43,780 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2019-09-10 11:40:43,780 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2019-09-10 11:40:43,780 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2019-09-10 11:40:43,780 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2019-09-10 11:40:43,780 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2019-09-10 11:40:43,781 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2019-09-10 11:40:43,781 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2019-09-10 11:40:43,781 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2019-09-10 11:40:43,781 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2019-09-10 11:40:43,781 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2019-09-10 11:40:43,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 11:40:43,781 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_irq [2019-09-10 11:40:43,782 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_open [2019-09-10 11:40:43,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 11:40:43,782 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_close [2019-09-10 11:40:43,782 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_probe [2019-09-10 11:40:43,782 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_disconnect [2019-09-10 11:40:43,782 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_init [2019-09-10 11:40:43,783 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_exit [2019-09-10 11:40:43,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-10 11:40:43,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-10 11:40:43,783 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 11:40:43,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-10 11:40:43,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2019-09-10 11:40:43,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2019-09-10 11:40:43,785 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-09-10 11:40:43,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2019-09-10 11:40:43,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2019-09-10 11:40:43,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2019-09-10 11:40:43,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2019-09-10 11:40:43,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2019-09-10 11:40:43,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2019-09-10 11:40:43,786 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-10 11:40:43,786 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 11:40:43,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 11:40:43,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 11:40:43,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 11:40:43,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-10 11:40:43,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 11:40:44,524 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-10 11:40:45,525 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 11:40:45,527 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 11:40:45,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:40:45 BoogieIcfgContainer [2019-09-10 11:40:45,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 11:40:45,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 11:40:45,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 11:40:45,535 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 11:40:45,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 11:40:41" (1/3) ... [2019-09-10 11:40:45,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e5dbaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:40:45, skipping insertion in model container [2019-09-10 11:40:45,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:40:43" (2/3) ... [2019-09-10 11:40:45,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e5dbaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:40:45, skipping insertion in model container [2019-09-10 11:40:45,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:40:45" (3/3) ... [2019-09-10 11:40:45,540 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-09-10 11:40:45,550 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 11:40:45,561 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 11:40:45,579 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 11:40:45,612 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 11:40:45,613 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 11:40:45,613 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 11:40:45,613 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 11:40:45,613 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 11:40:45,613 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 11:40:45,613 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 11:40:45,613 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 11:40:45,646 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states. [2019-09-10 11:40:45,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-09-10 11:40:45,659 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:40:45,660 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 11:40:45,663 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:40:45,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:40:45,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1638085357, now seen corresponding path program 1 times [2019-09-10 11:40:45,671 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:40:45,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:40:45,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:40:45,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:40:45,745 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:40:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:40:46,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 11:40:46,154 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:40:46,155 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 11:40:46,155 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:40:46,161 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 11:40:46,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 11:40:46,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 11:40:46,179 INFO L87 Difference]: Start difference. First operand 505 states. Second operand 3 states. [2019-09-10 11:40:46,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:40:46,330 INFO L93 Difference]: Finished difference Result 697 states and 826 transitions. [2019-09-10 11:40:46,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 11:40:46,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2019-09-10 11:40:46,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:40:46,360 INFO L225 Difference]: With dead ends: 697 [2019-09-10 11:40:46,360 INFO L226 Difference]: Without dead ends: 680 [2019-09-10 11:40:46,365 INFO L628 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 [2019-09-10 11:40:46,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2019-09-10 11:40:46,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 680. [2019-09-10 11:40:46,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 680 states. [2019-09-10 11:40:46,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 801 transitions. [2019-09-10 11:40:46,528 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 801 transitions. Word has length 44 [2019-09-10 11:40:46,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:40:46,528 INFO L475 AbstractCegarLoop]: Abstraction has 680 states and 801 transitions. [2019-09-10 11:40:46,528 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 11:40:46,529 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 801 transitions. [2019-09-10 11:40:46,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-09-10 11:40:46,533 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:40:46,534 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 11:40:46,534 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:40:46,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:40:46,535 INFO L82 PathProgramCache]: Analyzing trace with hash 538717486, now seen corresponding path program 1 times [2019-09-10 11:40:46,535 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:40:46,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:40:46,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:40:46,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:40:46,539 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:40:46,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:40:46,684 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-10 11:40:46,685 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:40:46,685 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 11:40:46,685 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:40:46,690 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 11:40:46,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 11:40:46,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 11:40:46,691 INFO L87 Difference]: Start difference. First operand 680 states and 801 transitions. Second operand 6 states. [2019-09-10 11:40:46,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:40:46,812 INFO L93 Difference]: Finished difference Result 696 states and 818 transitions. [2019-09-10 11:40:46,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 11:40:46,813 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 72 [2019-09-10 11:40:46,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:40:46,818 INFO L225 Difference]: With dead ends: 696 [2019-09-10 11:40:46,818 INFO L226 Difference]: Without dead ends: 696 [2019-09-10 11:40:46,819 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-09-10 11:40:46,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2019-09-10 11:40:46,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 685. [2019-09-10 11:40:46,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 685 states. [2019-09-10 11:40:46,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 805 transitions. [2019-09-10 11:40:46,853 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 805 transitions. Word has length 72 [2019-09-10 11:40:46,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:40:46,854 INFO L475 AbstractCegarLoop]: Abstraction has 685 states and 805 transitions. [2019-09-10 11:40:46,854 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 11:40:46,854 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 805 transitions. [2019-09-10 11:40:46,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-09-10 11:40:46,866 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:40:46,866 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 11:40:46,867 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:40:46,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:40:46,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1297040366, now seen corresponding path program 1 times [2019-09-10 11:40:46,868 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:40:46,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:40:46,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:40:46,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:40:46,874 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:40:46,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:40:47,042 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-10 11:40:47,042 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:40:47,042 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 11:40:47,042 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:40:47,043 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 11:40:47,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 11:40:47,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 11:40:47,044 INFO L87 Difference]: Start difference. First operand 685 states and 805 transitions. Second operand 3 states. [2019-09-10 11:40:47,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:40:47,093 INFO L93 Difference]: Finished difference Result 1342 states and 1580 transitions. [2019-09-10 11:40:47,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 11:40:47,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2019-09-10 11:40:47,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:40:47,103 INFO L225 Difference]: With dead ends: 1342 [2019-09-10 11:40:47,103 INFO L226 Difference]: Without dead ends: 1342 [2019-09-10 11:40:47,104 INFO L628 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 [2019-09-10 11:40:47,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2019-09-10 11:40:47,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1340. [2019-09-10 11:40:47,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1340 states. [2019-09-10 11:40:47,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1579 transitions. [2019-09-10 11:40:47,154 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1579 transitions. Word has length 72 [2019-09-10 11:40:47,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:40:47,154 INFO L475 AbstractCegarLoop]: Abstraction has 1340 states and 1579 transitions. [2019-09-10 11:40:47,154 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 11:40:47,155 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1579 transitions. [2019-09-10 11:40:47,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-09-10 11:40:47,156 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:40:47,156 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 11:40:47,157 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:40:47,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:40:47,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1553403217, now seen corresponding path program 1 times [2019-09-10 11:40:47,158 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:40:47,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:40:47,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:40:47,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:40:47,161 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:40:47,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:40:47,320 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-10 11:40:47,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:40:47,321 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 11:40:47,321 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:40:47,321 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 11:40:47,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 11:40:47,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 11:40:47,322 INFO L87 Difference]: Start difference. First operand 1340 states and 1579 transitions. Second operand 3 states. [2019-09-10 11:40:47,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:40:47,348 INFO L93 Difference]: Finished difference Result 1339 states and 1577 transitions. [2019-09-10 11:40:47,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 11:40:47,349 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2019-09-10 11:40:47,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:40:47,356 INFO L225 Difference]: With dead ends: 1339 [2019-09-10 11:40:47,357 INFO L226 Difference]: Without dead ends: 1339 [2019-09-10 11:40:47,357 INFO L628 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 [2019-09-10 11:40:47,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2019-09-10 11:40:47,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 1339. [2019-09-10 11:40:47,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1339 states. [2019-09-10 11:40:47,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1577 transitions. [2019-09-10 11:40:47,408 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1577 transitions. Word has length 73 [2019-09-10 11:40:47,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:40:47,410 INFO L475 AbstractCegarLoop]: Abstraction has 1339 states and 1577 transitions. [2019-09-10 11:40:47,410 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 11:40:47,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1577 transitions. [2019-09-10 11:40:47,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-09-10 11:40:47,411 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:40:47,412 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 11:40:47,412 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:40:47,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:40:47,412 INFO L82 PathProgramCache]: Analyzing trace with hash 910721873, now seen corresponding path program 1 times [2019-09-10 11:40:47,413 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:40:47,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:40:47,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:40:47,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:40:47,418 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:40:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:40:47,561 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-10 11:40:47,562 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:40:47,562 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 11:40:47,562 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:40:47,563 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 11:40:47,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 11:40:47,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 11:40:47,564 INFO L87 Difference]: Start difference. First operand 1339 states and 1577 transitions. Second operand 3 states. [2019-09-10 11:40:47,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:40:47,581 INFO L93 Difference]: Finished difference Result 1338 states and 1575 transitions. [2019-09-10 11:40:47,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 11:40:47,582 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2019-09-10 11:40:47,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:40:47,593 INFO L225 Difference]: With dead ends: 1338 [2019-09-10 11:40:47,593 INFO L226 Difference]: Without dead ends: 1338 [2019-09-10 11:40:47,594 INFO L628 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 [2019-09-10 11:40:47,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2019-09-10 11:40:47,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 1338. [2019-09-10 11:40:47,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1338 states. [2019-09-10 11:40:47,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1575 transitions. [2019-09-10 11:40:47,674 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1575 transitions. Word has length 74 [2019-09-10 11:40:47,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:40:47,674 INFO L475 AbstractCegarLoop]: Abstraction has 1338 states and 1575 transitions. [2019-09-10 11:40:47,675 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 11:40:47,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1575 transitions. [2019-09-10 11:40:47,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-09-10 11:40:47,677 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:40:47,678 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 11:40:47,678 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:40:47,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:40:47,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1832525740, now seen corresponding path program 1 times [2019-09-10 11:40:47,679 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:40:47,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:40:47,683 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:40:47,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:40:47,683 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:40:47,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:40:47,834 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-10 11:40:47,835 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:40:47,835 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 11:40:47,835 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:40:47,836 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 11:40:47,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 11:40:47,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 11:40:47,836 INFO L87 Difference]: Start difference. First operand 1338 states and 1575 transitions. Second operand 3 states. [2019-09-10 11:40:47,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:40:47,851 INFO L93 Difference]: Finished difference Result 1337 states and 1573 transitions. [2019-09-10 11:40:47,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 11:40:47,851 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2019-09-10 11:40:47,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:40:47,857 INFO L225 Difference]: With dead ends: 1337 [2019-09-10 11:40:47,858 INFO L226 Difference]: Without dead ends: 1319 [2019-09-10 11:40:47,858 INFO L628 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 [2019-09-10 11:40:47,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2019-09-10 11:40:47,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1319. [2019-09-10 11:40:47,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1319 states. [2019-09-10 11:40:47,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1553 transitions. [2019-09-10 11:40:47,897 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1553 transitions. Word has length 75 [2019-09-10 11:40:47,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:40:47,898 INFO L475 AbstractCegarLoop]: Abstraction has 1319 states and 1553 transitions. [2019-09-10 11:40:47,898 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 11:40:47,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1553 transitions. [2019-09-10 11:40:47,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2019-09-10 11:40:47,903 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:40:47,903 INFO L399 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 11:40:47,904 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:40:47,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:40:47,904 INFO L82 PathProgramCache]: Analyzing trace with hash -131462205, now seen corresponding path program 1 times [2019-09-10 11:40:47,904 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:40:47,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:40:47,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:40:47,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:40:47,907 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:40:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:40:48,087 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-09-10 11:40:48,088 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:40:48,088 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 11:40:48,088 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:40:48,089 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 11:40:48,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 11:40:48,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 11:40:48,090 INFO L87 Difference]: Start difference. First operand 1319 states and 1553 transitions. Second operand 3 states. [2019-09-10 11:40:48,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:40:48,136 INFO L93 Difference]: Finished difference Result 1406 states and 1670 transitions. [2019-09-10 11:40:48,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 11:40:48,136 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2019-09-10 11:40:48,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:40:48,146 INFO L225 Difference]: With dead ends: 1406 [2019-09-10 11:40:48,146 INFO L226 Difference]: Without dead ends: 1406 [2019-09-10 11:40:48,147 INFO L628 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 [2019-09-10 11:40:48,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1406 states. [2019-09-10 11:40:48,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1406 to 1369. [2019-09-10 11:40:48,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1369 states. [2019-09-10 11:40:48,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1369 states to 1369 states and 1624 transitions. [2019-09-10 11:40:48,194 INFO L78 Accepts]: Start accepts. Automaton has 1369 states and 1624 transitions. Word has length 231 [2019-09-10 11:40:48,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:40:48,195 INFO L475 AbstractCegarLoop]: Abstraction has 1369 states and 1624 transitions. [2019-09-10 11:40:48,195 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 11:40:48,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1369 states and 1624 transitions. [2019-09-10 11:40:48,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2019-09-10 11:40:48,204 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:40:48,205 INFO L399 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 11:40:48,205 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:40:48,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:40:48,205 INFO L82 PathProgramCache]: Analyzing trace with hash 395309848, now seen corresponding path program 1 times [2019-09-10 11:40:48,206 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:40:48,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:40:48,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:40:48,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:40:48,209 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:40:48,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:40:48,382 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-09-10 11:40:48,383 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:40:48,383 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 11:40:48,383 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:40:48,384 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 11:40:48,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 11:40:48,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 11:40:48,385 INFO L87 Difference]: Start difference. First operand 1369 states and 1624 transitions. Second operand 6 states. [2019-09-10 11:40:48,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:40:48,446 INFO L93 Difference]: Finished difference Result 1397 states and 1652 transitions. [2019-09-10 11:40:48,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 11:40:48,447 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 250 [2019-09-10 11:40:48,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:40:48,460 INFO L225 Difference]: With dead ends: 1397 [2019-09-10 11:40:48,461 INFO L226 Difference]: Without dead ends: 1397 [2019-09-10 11:40:48,462 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-10 11:40:48,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1397 states. [2019-09-10 11:40:48,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1397 to 1393. [2019-09-10 11:40:48,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1393 states. [2019-09-10 11:40:48,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1648 transitions. [2019-09-10 11:40:48,513 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1648 transitions. Word has length 250 [2019-09-10 11:40:48,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:40:48,514 INFO L475 AbstractCegarLoop]: Abstraction has 1393 states and 1648 transitions. [2019-09-10 11:40:48,514 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 11:40:48,514 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1648 transitions. [2019-09-10 11:40:48,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2019-09-10 11:40:48,520 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:40:48,521 INFO L399 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 11:40:48,522 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:40:48,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:40:48,523 INFO L82 PathProgramCache]: Analyzing trace with hash 931071889, now seen corresponding path program 1 times [2019-09-10 11:40:48,523 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:40:48,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:40:48,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:40:48,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:40:48,526 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:40:48,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:40:48,980 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-09-10 11:40:48,980 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 11:40:48,980 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 11:40:48,982 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 257 with the following transitions: [2019-09-10 11:40:48,990 INFO L207 CegarAbsIntRunner]: [20], [21], [25], [26], [27], [28], [34], [35], [46], [47], [48], [50], [54], [56], [60], [62], [64], [66], [68], [73], [75], [80], [82], [85], [174], [176], [180], [181], [182], [183], [232], [233], [259], [262], [264], [265], [268], [272], [273], [275], [276], [287], [288], [351], [352], [358], [359], [360], [362], [365], [367], [370], [377], [378], [379], [381], [384], [388], [389], [390], [391], [392], [394], [395], [417], [419], [420], [421], [422], [423], [439], [441], [447], [450], [454], [456], [467], [469], [470], [473], [475], [477], [479], [482], [485], [488], [491], [493], [496], [531], [534], [537], [540], [543], [545], [549], [552], [555], [557], [560], [568], [601], [602], [618], [620], [622], [623], [640], [641], [645], [647], [648], [651], [652], [656], [657], [658], [660], [661], [718], [720], [721], [722], [724], [725], [751], [753], [755], [756], [763], [765], [766], [767], [769], [770], [773], [814], [817], [822], [823], [838], [839], [840], [841], [842], [843], [844], [845], [846], [847], [848], [849], [850], [851], [852], [853], [886], [887], [888], [889], [890], [891], [908], [909], [928], [929], [932], [933], [934], [935], [936], [937], [938], [939], [952], [953], [960], [961], [964], [965], [970], [971], [972], [973], [974], [975], [976], [977], [982], [983], [984], [985], [990], [996], [997], [998], [999], [1008], [1009], [1010], [1011], [1012], [1013], [1026], [1027], [1028], [1029], [1032], [1033], [1034], [1035], [1040], [1041], [1042], [1043], [1044], [1054], [1055], [1056], [1060], [1061] [2019-09-10 11:40:49,057 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 11:40:49,058 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 11:40:49,132 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 11:40:49,133 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 74 root evaluator evaluations with a maximum evaluation depth of 0. Performed 74 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 146 variables. [2019-09-10 11:40:49,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:40:49,139 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 11:40:49,244 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 11:40:49,247 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 11:40:49,259 INFO L420 sIntCurrentIteration]: We unified 255 AI predicates to 255 [2019-09-10 11:40:49,260 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 11:40:49,260 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 11:40:49,261 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-09-10 11:40:49,261 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:40:49,262 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 11:40:49,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 11:40:49,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 11:40:49,265 INFO L87 Difference]: Start difference. First operand 1393 states and 1648 transitions. Second operand 2 states. [2019-09-10 11:40:49,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:40:49,265 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 11:40:49,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 11:40:49,266 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 256 [2019-09-10 11:40:49,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:40:49,266 INFO L225 Difference]: With dead ends: 2 [2019-09-10 11:40:49,266 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 11:40:49,266 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 11:40:49,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 11:40:49,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 11:40:49,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 11:40:49,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 11:40:49,267 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 256 [2019-09-10 11:40:49,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:40:49,268 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 11:40:49,268 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 11:40:49,268 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 11:40:49,268 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 11:40:49,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 11:40:49 BoogieIcfgContainer [2019-09-10 11:40:49,274 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 11:40:49,278 INFO L168 Benchmark]: Toolchain (without parser) took 7327.66 ms. Allocated memory was 132.1 MB in the beginning and 358.6 MB in the end (delta: 226.5 MB). Free memory was 83.3 MB in the beginning and 200.9 MB in the end (delta: -117.5 MB). Peak memory consumption was 109.0 MB. Max. memory is 7.1 GB. [2019-09-10 11:40:49,278 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 132.1 MB. Free memory is still 106.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 11:40:49,281 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1485.21 ms. Allocated memory was 132.1 MB in the beginning and 203.4 MB in the end (delta: 71.3 MB). Free memory was 82.9 MB in the beginning and 112.3 MB in the end (delta: -29.4 MB). Peak memory consumption was 47.1 MB. Max. memory is 7.1 GB. [2019-09-10 11:40:49,282 INFO L168 Benchmark]: Boogie Preprocessor took 193.57 ms. Allocated memory is still 203.4 MB. Free memory was 112.3 MB in the beginning and 103.8 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 7.1 GB. [2019-09-10 11:40:49,283 INFO L168 Benchmark]: RCFGBuilder took 1900.17 ms. Allocated memory was 203.4 MB in the beginning and 276.8 MB in the end (delta: 73.4 MB). Free memory was 103.8 MB in the beginning and 227.6 MB in the end (delta: -123.8 MB). Peak memory consumption was 70.2 MB. Max. memory is 7.1 GB. [2019-09-10 11:40:49,289 INFO L168 Benchmark]: TraceAbstraction took 3742.93 ms. Allocated memory was 276.8 MB in the beginning and 358.6 MB in the end (delta: 81.8 MB). Free memory was 227.6 MB in the beginning and 200.9 MB in the end (delta: 26.7 MB). Peak memory consumption was 108.5 MB. Max. memory is 7.1 GB. [2019-09-10 11:40:49,295 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 132.1 MB. Free memory is still 106.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1485.21 ms. Allocated memory was 132.1 MB in the beginning and 203.4 MB in the end (delta: 71.3 MB). Free memory was 82.9 MB in the beginning and 112.3 MB in the end (delta: -29.4 MB). Peak memory consumption was 47.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 193.57 ms. Allocated memory is still 203.4 MB. Free memory was 112.3 MB in the beginning and 103.8 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1900.17 ms. Allocated memory was 203.4 MB in the beginning and 276.8 MB in the end (delta: 73.4 MB). Free memory was 103.8 MB in the beginning and 227.6 MB in the end (delta: -123.8 MB). Peak memory consumption was 70.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3742.93 ms. Allocated memory was 276.8 MB in the beginning and 358.6 MB in the end (delta: 81.8 MB). Free memory was 227.6 MB in the beginning and 200.9 MB in the end (delta: 26.7 MB). Peak memory consumption was 108.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4056]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 88 procedures, 547 locations, 1 error locations. SAFE Result, 3.6s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3747 SDtfs, 2544 SDslu, 4289 SDs, 0 SdLazy, 74 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 291 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1393occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.0823529411764707 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 54 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1147 NumberOfCodeBlocks, 1147 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1138 ConstructedInterpolants, 0 QuantifiedInterpolants, 249094 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 156/167 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...