java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--platform--x86--ideapad-laptop.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 04:14:01,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 04:14:01,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 04:14:01,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 04:14:01,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 04:14:01,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 04:14:01,644 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 04:14:01,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 04:14:01,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 04:14:01,655 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 04:14:01,659 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 04:14:01,661 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 04:14:01,661 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 04:14:01,664 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 04:14:01,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 04:14:01,666 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 04:14:01,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 04:14:01,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 04:14:01,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 04:14:01,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 04:14:01,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 04:14:01,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 04:14:01,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 04:14:01,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 04:14:01,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 04:14:01,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 04:14:01,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 04:14:01,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 04:14:01,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 04:14:01,693 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 04:14:01,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 04:14:01,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 04:14:01,695 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 04:14:01,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 04:14:01,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 04:14:01,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 04:14:01,698 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 04:14:01,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 04:14:01,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 04:14:01,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 04:14:01,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 04:14:01,700 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 [2019-10-02 04:14:01,714 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 04:14:01,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 04:14:01,716 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-02 04:14:01,716 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-02 04:14:01,716 INFO L138 SettingsManager]: * Use SBE=true [2019-10-02 04:14:01,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 04:14:01,717 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 04:14:01,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-02 04:14:01,717 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 04:14:01,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 04:14:01,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 04:14:01,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 04:14:01,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 04:14:01,718 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 04:14:01,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 04:14:01,718 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-02 04:14:01,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 04:14:01,719 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 04:14:01,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 04:14:01,719 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-02 04:14:01,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-02 04:14:01,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 04:14:01,720 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 04:14:01,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 04:14:01,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-02 04:14:01,720 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-02 04:14:01,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 04:14:01,721 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-02 04:14:01,721 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 04:14:01,776 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 04:14:01,796 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 04:14:01,800 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 04:14:01,801 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 04:14:01,802 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 04:14:01,802 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--platform--x86--ideapad-laptop.ko-main.cil.out.i [2019-10-02 04:14:01,870 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b324a594/6a832a75916640debe556c013251c730/FLAGd4e364fad [2019-10-02 04:14:02,596 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 04:14:02,597 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--platform--x86--ideapad-laptop.ko-main.cil.out.i [2019-10-02 04:14:02,633 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b324a594/6a832a75916640debe556c013251c730/FLAGd4e364fad [2019-10-02 04:14:02,718 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b324a594/6a832a75916640debe556c013251c730 [2019-10-02 04:14:02,728 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 04:14:02,730 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 04:14:02,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 04:14:02,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 04:14:02,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 04:14:02,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 04:14:02" (1/1) ... [2019-10-02 04:14:02,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8127a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:14:02, skipping insertion in model container [2019-10-02 04:14:02,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 04:14:02" (1/1) ... [2019-10-02 04:14:02,745 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 04:14:02,879 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 04:14:04,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 04:14:04,942 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 04:14:05,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 04:14:05,562 INFO L192 MainTranslator]: Completed translation [2019-10-02 04:14:05,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:14:05 WrapperNode [2019-10-02 04:14:05,563 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 04:14:05,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 04:14:05,565 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 04:14:05,565 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 04:14:05,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:14:05" (1/1) ... [2019-10-02 04:14:05,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:14:05" (1/1) ... [2019-10-02 04:14:05,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:14:05" (1/1) ... [2019-10-02 04:14:05,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:14:05" (1/1) ... [2019-10-02 04:14:05,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:14:05" (1/1) ... [2019-10-02 04:14:05,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:14:05" (1/1) ... [2019-10-02 04:14:05,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:14:05" (1/1) ... [2019-10-02 04:14:05,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 04:14:05,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 04:14:05,828 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 04:14:05,828 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 04:14:05,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:14:05" (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 [2019-10-02 04:14:05,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 04:14:05,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 04:14:05,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-10-02 04:14:05,935 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-10-02 04:14:05,937 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-02 04:14:05,937 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-02 04:14:05,937 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-02 04:14:05,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-02 04:14:05,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-02 04:14:05,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-02 04:14:05,939 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-02 04:14:05,939 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-02 04:14:05,940 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2019-10-02 04:14:05,940 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2019-10-02 04:14:05,941 INFO L138 BoogieDeclarations]: Found implementation of procedure backlight_update_status [2019-10-02 04:14:05,941 INFO L138 BoogieDeclarations]: Found implementation of procedure read_method_int [2019-10-02 04:14:05,944 INFO L138 BoogieDeclarations]: Found implementation of procedure method_vpcr [2019-10-02 04:14:05,944 INFO L138 BoogieDeclarations]: Found implementation of procedure method_vpcw [2019-10-02 04:14:05,944 INFO L138 BoogieDeclarations]: Found implementation of procedure read_ec_data [2019-10-02 04:14:05,945 INFO L138 BoogieDeclarations]: Found implementation of procedure write_ec_cmd [2019-10-02 04:14:05,945 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_status_show [2019-10-02 04:14:05,945 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_status_open [2019-10-02 04:14:05,945 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_cfg_show [2019-10-02 04:14:05,945 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_cfg_open [2019-10-02 04:14:05,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_debugfs_init [2019-10-02 04:14:05,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_debugfs_exit [2019-10-02 04:14:05,946 INFO L138 BoogieDeclarations]: Found implementation of procedure show_ideapad_cam [2019-10-02 04:14:05,946 INFO L138 BoogieDeclarations]: Found implementation of procedure store_ideapad_cam [2019-10-02 04:14:05,946 INFO L138 BoogieDeclarations]: Found implementation of procedure show_ideapad_fan [2019-10-02 04:14:05,946 INFO L138 BoogieDeclarations]: Found implementation of procedure store_ideapad_fan [2019-10-02 04:14:05,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_is_visible [2019-10-02 04:14:05,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_rfk_set [2019-10-02 04:14:05,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_sync_rfk_state [2019-10-02 04:14:05,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_register_rfkill [2019-10-02 04:14:05,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_unregister_rfkill [2019-10-02 04:14:05,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_platform_init [2019-10-02 04:14:05,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_platform_exit [2019-10-02 04:14:05,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_input_init [2019-10-02 04:14:05,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_input_exit [2019-10-02 04:14:05,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_input_report [2019-10-02 04:14:05,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_input_novokey [2019-10-02 04:14:05,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_check_special_buttons [2019-10-02 04:14:05,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_backlight_get_brightness [2019-10-02 04:14:05,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_backlight_update_status [2019-10-02 04:14:05,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_backlight_init [2019-10-02 04:14:05,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_backlight_exit [2019-10-02 04:14:05,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_backlight_notify_power [2019-10-02 04:14:05,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_backlight_notify_brightness [2019-10-02 04:14:05,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_sync_touchpad_state [2019-10-02 04:14:05,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_acpi_add [2019-10-02 04:14:05,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_acpi_remove [2019-10-02 04:14:05,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_acpi_notify [2019-10-02 04:14:05,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_acpi_resume [2019-10-02 04:14:05,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_acpi_driver_init [2019-10-02 04:14:05,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_acpi_driver_exit [2019-10-02 04:14:05,950 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 04:14:05,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2019-10-02 04:14:05,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2019-10-02 04:14:05,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2019-10-02 04:14:05,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2019-10-02 04:14:05,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2019-10-02 04:14:05,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2019-10-02 04:14:05,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2019-10-02 04:14:05,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2019-10-02 04:14:05,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2019-10-02 04:14:05,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_10 [2019-10-02 04:14:05,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-02 04:14:05,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-02 04:14:05,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-02 04:14:05,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2019-10-02 04:14:05,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2019-10-02 04:14:05,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2019-10-02 04:14:05,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2019-10-02 04:14:05,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2019-10-02 04:14:05,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2019-10-02 04:14:05,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2019-10-02 04:14:05,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-10-02 04:14:05,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-10-02 04:14:05,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-10-02 04:14:05,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-10-02 04:14:05,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-02 04:14:05,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-10-02 04:14:05,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-10-02 04:14:05,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock_of_fb_info [2019-10-02 04:14:05,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock_of_fb_info [2019-10-02 04:14:05,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_fb_info [2019-10-02 04:14:05,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock_of_fb_info [2019-10-02 04:14:05,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock_of_fb_info [2019-10-02 04:14:05,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock_of_fb_info [2019-10-02 04:14:05,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_fb_info [2019-10-02 04:14:05,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-02 04:14:05,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-02 04:14:05,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-10-02 04:14:05,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-10-02 04:14:05,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-02 04:14:05,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-02 04:14:05,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-10-02 04:14:05,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_update_lock_of_backlight_device [2019-10-02 04:14:05,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_update_lock_of_backlight_device [2019-10-02 04:14:05,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_backlight_device [2019-10-02 04:14:05,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_update_lock_of_backlight_device [2019-10-02 04:14:05,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_update_lock_of_backlight_device [2019-10-02 04:14:05,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_update_lock_of_backlight_device [2019-10-02 04:14:05,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_backlight_device [2019-10-02 04:14:05,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-02 04:14:05,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-02 04:14:05,958 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_bus_register_driver [2019-10-02 04:14:05,958 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_bus_unregister_driver [2019-10-02 04:14:05,958 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_evaluate_integer [2019-10-02 04:14:05,958 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_evaluate_object [2019-10-02 04:14:05,958 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_video_backlight_support [2019-10-02 04:14:05,958 INFO L138 BoogieDeclarations]: Found implementation of procedure backlight_device_register [2019-10-02 04:14:05,959 INFO L138 BoogieDeclarations]: Found implementation of procedure backlight_device_unregister [2019-10-02 04:14:05,959 INFO L138 BoogieDeclarations]: Found implementation of procedure backlight_force_update [2019-10-02 04:14:05,959 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2019-10-02 04:14:05,959 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2019-10-02 04:14:05,959 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2019-10-02 04:14:05,959 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-02 04:14:05,959 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-02 04:14:05,960 INFO L138 BoogieDeclarations]: Found implementation of procedure i8042_command [2019-10-02 04:14:05,960 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2019-10-02 04:14:05,960 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2019-10-02 04:14:05,960 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2019-10-02 04:14:05,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_complete_2 [2019-10-02 04:14:05,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_freeze_2 [2019-10-02 04:14:05,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_freeze_late_2 [2019-10-02 04:14:05,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_freeze_noirq_2 [2019-10-02 04:14:05,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_poweroff_2 [2019-10-02 04:14:05,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_poweroff_late_2 [2019-10-02 04:14:05,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_poweroff_noirq_2 [2019-10-02 04:14:05,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_prepare_2 [2019-10-02 04:14:05,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_restore_early_2 [2019-10-02 04:14:05,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_restore_noirq_2 [2019-10-02 04:14:05,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_resume_early_2 [2019-10-02 04:14:05,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_resume_noirq_2 [2019-10-02 04:14:05,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_suspend_2 [2019-10-02 04:14:05,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_suspend_late_2 [2019-10-02 04:14:05,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_suspend_noirq_2 [2019-10-02 04:14:05,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_thaw_early_2 [2019-10-02 04:14:05,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_thaw_noirq_2 [2019-10-02 04:14:05,963 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-02 04:14:05,963 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-10-02 04:14:05,963 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-02 04:14:05,963 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add [2019-10-02 04:14:05,963 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_alloc [2019-10-02 04:14:05,964 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_del [2019-10-02 04:14:05,964 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_put [2019-10-02 04:14:05,964 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2019-10-02 04:14:05,964 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-02 04:14:05,964 INFO L138 BoogieDeclarations]: Found implementation of procedure rfkill_alloc [2019-10-02 04:14:05,964 INFO L138 BoogieDeclarations]: Found implementation of procedure rfkill_destroy [2019-10-02 04:14:05,965 INFO L138 BoogieDeclarations]: Found implementation of procedure rfkill_init_sw_state [2019-10-02 04:14:05,965 INFO L138 BoogieDeclarations]: Found implementation of procedure rfkill_register [2019-10-02 04:14:05,965 INFO L138 BoogieDeclarations]: Found implementation of procedure rfkill_set_hw_state [2019-10-02 04:14:05,965 INFO L138 BoogieDeclarations]: Found implementation of procedure rfkill_unregister [2019-10-02 04:14:05,965 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-02 04:14:05,965 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2019-10-02 04:14:05,965 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2019-10-02 04:14:05,966 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2019-10-02 04:14:05,966 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2019-10-02 04:14:05,966 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2019-10-02 04:14:05,966 INFO L138 BoogieDeclarations]: Found implementation of procedure sparse_keymap_free [2019-10-02 04:14:05,966 INFO L138 BoogieDeclarations]: Found implementation of procedure sparse_keymap_report_event [2019-10-02 04:14:05,966 INFO L138 BoogieDeclarations]: Found implementation of procedure sparse_keymap_setup [2019-10-02 04:14:05,966 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2019-10-02 04:14:05,966 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2019-10-02 04:14:05,967 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-02 04:14:05,967 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-02 04:14:05,967 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-02 04:14:05,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 04:14:05,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-02 04:14:05,967 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-10-02 04:14:05,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 04:14:05,968 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-02 04:14:05,968 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-02 04:14:05,968 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-02 04:14:05,968 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2019-10-02 04:14:05,968 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-02 04:14:05,968 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-02 04:14:05,969 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-02 04:14:05,969 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-10-02 04:14:05,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2019-10-02 04:14:05,969 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-02 04:14:05,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2019-10-02 04:14:05,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2019-10-02 04:14:05,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2019-10-02 04:14:05,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2019-10-02 04:14:05,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_10 [2019-10-02 04:14:05,970 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-02 04:14:05,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2019-10-02 04:14:05,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2019-10-02 04:14:05,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2019-10-02 04:14:05,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2019-10-02 04:14:05,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2019-10-02 04:14:05,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2019-10-02 04:14:05,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-10-02 04:14:05,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-10-02 04:14:05,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_fb_info [2019-10-02 04:14:05,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-10-02 04:14:05,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-10-02 04:14:05,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-10-02 04:14:05,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_backlight_device [2019-10-02 04:14:05,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_backlight_device [2019-10-02 04:14:05,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 04:14:05,972 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2019-10-02 04:14:05,972 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2019-10-02 04:14:05,972 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-02 04:14:05,972 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-02 04:14:05,972 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-02 04:14:05,973 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-02 04:14:05,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-02 04:14:05,973 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-02 04:14:05,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-02 04:14:05,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-02 04:14:05,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-02 04:14:05,973 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-02 04:14:05,974 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-02 04:14:05,974 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-02 04:14:05,974 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_evaluate_object [2019-10-02 04:14:05,974 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_evaluate_integer [2019-10-02 04:14:05,974 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_bus_register_driver [2019-10-02 04:14:05,974 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_bus_unregister_driver [2019-10-02 04:14:05,974 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_video_backlight_support [2019-10-02 04:14:05,975 INFO L130 BoogieDeclarations]: Found specification of procedure rfkill_alloc [2019-10-02 04:14:05,975 INFO L130 BoogieDeclarations]: Found specification of procedure rfkill_register [2019-10-02 04:14:05,975 INFO L130 BoogieDeclarations]: Found specification of procedure rfkill_unregister [2019-10-02 04:14:05,975 INFO L130 BoogieDeclarations]: Found specification of procedure rfkill_destroy [2019-10-02 04:14:05,975 INFO L130 BoogieDeclarations]: Found specification of procedure rfkill_set_hw_state [2019-10-02 04:14:05,975 INFO L130 BoogieDeclarations]: Found specification of procedure rfkill_init_sw_state [2019-10-02 04:14:05,975 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2019-10-02 04:14:05,976 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_alloc [2019-10-02 04:14:05,976 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add [2019-10-02 04:14:05,976 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_del [2019-10-02 04:14:05,976 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_put [2019-10-02 04:14:05,976 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2019-10-02 04:14:05,976 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2019-10-02 04:14:05,976 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2019-10-02 04:14:05,977 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2019-10-02 04:14:05,977 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2019-10-02 04:14:05,977 INFO L130 BoogieDeclarations]: Found specification of procedure sparse_keymap_setup [2019-10-02 04:14:05,977 INFO L130 BoogieDeclarations]: Found specification of procedure sparse_keymap_free [2019-10-02 04:14:05,977 INFO L130 BoogieDeclarations]: Found specification of procedure sparse_keymap_report_event [2019-10-02 04:14:05,977 INFO L130 BoogieDeclarations]: Found specification of procedure backlight_update_status [2019-10-02 04:14:05,977 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-10-02 04:14:05,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-02 04:14:05,978 INFO L130 BoogieDeclarations]: Found specification of procedure backlight_device_register [2019-10-02 04:14:05,978 INFO L130 BoogieDeclarations]: Found specification of procedure backlight_device_unregister [2019-10-02 04:14:05,978 INFO L130 BoogieDeclarations]: Found specification of procedure backlight_force_update [2019-10-02 04:14:05,978 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2019-10-02 04:14:05,978 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2019-10-02 04:14:05,978 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2019-10-02 04:14:05,978 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2019-10-02 04:14:05,979 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2019-10-02 04:14:05,979 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2019-10-02 04:14:05,979 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2019-10-02 04:14:05,979 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2019-10-02 04:14:05,979 INFO L130 BoogieDeclarations]: Found specification of procedure i8042_command [2019-10-02 04:14:05,979 INFO L130 BoogieDeclarations]: Found specification of procedure read_method_int [2019-10-02 04:14:05,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 04:14:05,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 04:14:05,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 04:14:05,980 INFO L130 BoogieDeclarations]: Found specification of procedure method_vpcr [2019-10-02 04:14:05,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-02 04:14:05,980 INFO L130 BoogieDeclarations]: Found specification of procedure method_vpcw [2019-10-02 04:14:05,980 INFO L130 BoogieDeclarations]: Found specification of procedure read_ec_data [2019-10-02 04:14:05,980 INFO L130 BoogieDeclarations]: Found specification of procedure write_ec_cmd [2019-10-02 04:14:05,980 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_status_show [2019-10-02 04:14:05,981 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_status_open [2019-10-02 04:14:05,981 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_cfg_show [2019-10-02 04:14:05,981 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_cfg_open [2019-10-02 04:14:05,981 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_debugfs_init [2019-10-02 04:14:05,981 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_debugfs_exit [2019-10-02 04:14:05,981 INFO L130 BoogieDeclarations]: Found specification of procedure show_ideapad_cam [2019-10-02 04:14:05,982 INFO L130 BoogieDeclarations]: Found specification of procedure store_ideapad_cam [2019-10-02 04:14:05,982 INFO L130 BoogieDeclarations]: Found specification of procedure show_ideapad_fan [2019-10-02 04:14:05,982 INFO L130 BoogieDeclarations]: Found specification of procedure store_ideapad_fan [2019-10-02 04:14:05,982 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_is_visible [2019-10-02 04:14:05,982 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_rfk_set [2019-10-02 04:14:05,982 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_sync_rfk_state [2019-10-02 04:14:05,982 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_register_rfkill [2019-10-02 04:14:05,983 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_unregister_rfkill [2019-10-02 04:14:05,983 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_platform_init [2019-10-02 04:14:05,983 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_platform_exit [2019-10-02 04:14:05,983 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_input_init [2019-10-02 04:14:05,983 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_input_exit [2019-10-02 04:14:05,983 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_input_report [2019-10-02 04:14:05,983 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_input_novokey [2019-10-02 04:14:05,984 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_check_special_buttons [2019-10-02 04:14:05,984 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_backlight_get_brightness [2019-10-02 04:14:05,984 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_backlight_update_status [2019-10-02 04:14:05,984 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_backlight_init [2019-10-02 04:14:05,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-02 04:14:05,984 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_backlight_exit [2019-10-02 04:14:05,984 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_backlight_notify_power [2019-10-02 04:14:05,985 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_backlight_notify_brightness [2019-10-02 04:14:05,985 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_sync_touchpad_state [2019-10-02 04:14:05,985 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_acpi_add [2019-10-02 04:14:05,985 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_acpi_remove [2019-10-02 04:14:05,985 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_acpi_notify [2019-10-02 04:14:05,985 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_acpi_resume [2019-10-02 04:14:05,985 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_acpi_driver_init [2019-10-02 04:14:05,986 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_acpi_driver_exit [2019-10-02 04:14:05,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_suspend_noirq_2 [2019-10-02 04:14:05,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_complete_2 [2019-10-02 04:14:05,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_resume_noirq_2 [2019-10-02 04:14:05,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_thaw_early_2 [2019-10-02 04:14:05,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_poweroff_late_2 [2019-10-02 04:14:05,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_resume_early_2 [2019-10-02 04:14:05,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_freeze_2 [2019-10-02 04:14:05,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-02 04:14:05,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_poweroff_noirq_2 [2019-10-02 04:14:05,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_suspend_late_2 [2019-10-02 04:14:05,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_prepare_2 [2019-10-02 04:14:05,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_freeze_late_2 [2019-10-02 04:14:05,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-02 04:14:05,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_restore_early_2 [2019-10-02 04:14:05,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_suspend_2 [2019-10-02 04:14:05,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_thaw_noirq_2 [2019-10-02 04:14:05,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_poweroff_2 [2019-10-02 04:14:05,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_freeze_noirq_2 [2019-10-02 04:14:05,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_restore_noirq_2 [2019-10-02 04:14:05,988 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 04:14:05,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-02 04:14:05,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-02 04:14:05,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2019-10-02 04:14:05,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2019-10-02 04:14:05,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2019-10-02 04:14:05,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2019-10-02 04:14:05,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2019-10-02 04:14:05,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-10-02 04:14:05,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-10-02 04:14:05,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-10-02 04:14:05,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-02 04:14:05,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-10-02 04:14:05,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock_of_fb_info [2019-10-02 04:14:05,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock_of_fb_info [2019-10-02 04:14:05,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_fb_info [2019-10-02 04:14:05,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock_of_fb_info [2019-10-02 04:14:05,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock_of_fb_info [2019-10-02 04:14:05,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock_of_fb_info [2019-10-02 04:14:05,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-02 04:14:05,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-02 04:14:05,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-02 04:14:05,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-02 04:14:05,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_update_lock_of_backlight_device [2019-10-02 04:14:05,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_update_lock_of_backlight_device [2019-10-02 04:14:05,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_update_lock_of_backlight_device [2019-10-02 04:14:05,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_update_lock_of_backlight_device [2019-10-02 04:14:05,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_update_lock_of_backlight_device [2019-10-02 04:14:05,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-02 04:14:05,992 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-02 04:14:05,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-02 04:14:05,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-02 04:14:05,993 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-02 04:14:05,993 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-02 04:14:05,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 04:14:05,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-02 04:14:05,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-02 04:14:05,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-02 04:14:05,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-02 04:14:05,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 04:14:26,228 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 04:14:26,229 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-02 04:14:26,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 04:14:26 BoogieIcfgContainer [2019-10-02 04:14:26,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 04:14:26,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 04:14:26,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 04:14:26,237 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 04:14:26,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 04:14:02" (1/3) ... [2019-10-02 04:14:26,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2986b9b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 04:14:26, skipping insertion in model container [2019-10-02 04:14:26,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:14:05" (2/3) ... [2019-10-02 04:14:26,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2986b9b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 04:14:26, skipping insertion in model container [2019-10-02 04:14:26,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 04:14:26" (3/3) ... [2019-10-02 04:14:26,242 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--platform--x86--ideapad-laptop.ko-main.cil.out.i [2019-10-02 04:14:26,255 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 04:14:26,267 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 04:14:26,289 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 04:14:26,336 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-10-02 04:14:26,337 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 04:14:26,338 INFO L378 AbstractCegarLoop]: Hoare is true [2019-10-02 04:14:26,338 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 04:14:26,338 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 04:14:26,338 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 04:14:26,338 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 04:14:26,338 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 04:14:26,339 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 04:14:26,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states. [2019-10-02 04:14:26,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-10-02 04:14:26,403 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:14:26,405 INFO L411 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] [2019-10-02 04:14:26,408 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:14:26,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:14:26,415 INFO L82 PathProgramCache]: Analyzing trace with hash -643794187, now seen corresponding path program 1 times [2019-10-02 04:14:26,418 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:14:26,419 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:14:26,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:14:26,507 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:14:26,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:14:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:14:27,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 04:14:27,269 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 04:14:27,269 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 04:14:27,274 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 04:14:27,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 04:14:27,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 04:14:27,296 INFO L87 Difference]: Start difference. First operand 1203 states. Second operand 3 states. [2019-10-02 04:14:30,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:14:30,000 INFO L93 Difference]: Finished difference Result 2955 states and 3926 transitions. [2019-10-02 04:14:30,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 04:14:30,002 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2019-10-02 04:14:30,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:14:30,065 INFO L225 Difference]: With dead ends: 2955 [2019-10-02 04:14:30,066 INFO L226 Difference]: Without dead ends: 1953 [2019-10-02 04:14:30,083 INFO L640 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 [2019-10-02 04:14:30,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1953 states. [2019-10-02 04:14:30,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1953 to 1949. [2019-10-02 04:14:30,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1949 states. [2019-10-02 04:14:30,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1949 states to 1949 states and 2568 transitions. [2019-10-02 04:14:30,370 INFO L78 Accepts]: Start accepts. Automaton has 1949 states and 2568 transitions. Word has length 36 [2019-10-02 04:14:30,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:14:30,372 INFO L475 AbstractCegarLoop]: Abstraction has 1949 states and 2568 transitions. [2019-10-02 04:14:30,372 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 04:14:30,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1949 states and 2568 transitions. [2019-10-02 04:14:30,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-10-02 04:14:30,392 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:14:30,392 INFO L411 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] [2019-10-02 04:14:30,393 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:14:30,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:14:30,393 INFO L82 PathProgramCache]: Analyzing trace with hash -347377801, now seen corresponding path program 1 times [2019-10-02 04:14:30,393 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:14:30,394 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:14:30,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:14:30,430 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:14:30,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:14:30,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:14:30,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 04:14:30,815 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 04:14:30,816 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 04:14:30,818 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 04:14:30,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 04:14:30,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 04:14:30,819 INFO L87 Difference]: Start difference. First operand 1949 states and 2568 transitions. Second operand 3 states. [2019-10-02 04:14:31,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:14:31,051 INFO L93 Difference]: Finished difference Result 1975 states and 2600 transitions. [2019-10-02 04:14:31,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 04:14:31,052 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2019-10-02 04:14:31,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:14:31,066 INFO L225 Difference]: With dead ends: 1975 [2019-10-02 04:14:31,067 INFO L226 Difference]: Without dead ends: 1962 [2019-10-02 04:14:31,070 INFO L640 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 [2019-10-02 04:14:31,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2019-10-02 04:14:31,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1949. [2019-10-02 04:14:31,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1949 states. [2019-10-02 04:14:31,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1949 states to 1949 states and 2567 transitions. [2019-10-02 04:14:31,173 INFO L78 Accepts]: Start accepts. Automaton has 1949 states and 2567 transitions. Word has length 41 [2019-10-02 04:14:31,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:14:31,173 INFO L475 AbstractCegarLoop]: Abstraction has 1949 states and 2567 transitions. [2019-10-02 04:14:31,173 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 04:14:31,174 INFO L276 IsEmpty]: Start isEmpty. Operand 1949 states and 2567 transitions. [2019-10-02 04:14:31,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-10-02 04:14:31,177 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:14:31,178 INFO L411 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] [2019-10-02 04:14:31,178 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:14:31,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:14:31,178 INFO L82 PathProgramCache]: Analyzing trace with hash -290119499, now seen corresponding path program 1 times [2019-10-02 04:14:31,179 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:14:31,179 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:14:31,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:14:31,190 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:14:31,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:14:31,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:14:31,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 04:14:31,425 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 04:14:31,425 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 04:14:31,425 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 04:14:31,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 04:14:31,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 04:14:31,428 INFO L87 Difference]: Start difference. First operand 1949 states and 2567 transitions. Second operand 3 states. [2019-10-02 04:14:33,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:14:33,757 INFO L93 Difference]: Finished difference Result 1951 states and 2568 transitions. [2019-10-02 04:14:33,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 04:14:33,758 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2019-10-02 04:14:33,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:14:33,777 INFO L225 Difference]: With dead ends: 1951 [2019-10-02 04:14:33,777 INFO L226 Difference]: Without dead ends: 1948 [2019-10-02 04:14:33,786 INFO L640 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 [2019-10-02 04:14:33,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1948 states. [2019-10-02 04:14:33,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1948 to 1948. [2019-10-02 04:14:33,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1948 states. [2019-10-02 04:14:33,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1948 states to 1948 states and 2565 transitions. [2019-10-02 04:14:33,890 INFO L78 Accepts]: Start accepts. Automaton has 1948 states and 2565 transitions. Word has length 41 [2019-10-02 04:14:33,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:14:33,891 INFO L475 AbstractCegarLoop]: Abstraction has 1948 states and 2565 transitions. [2019-10-02 04:14:33,891 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 04:14:33,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1948 states and 2565 transitions. [2019-10-02 04:14:33,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-02 04:14:33,896 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:14:33,896 INFO L411 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] [2019-10-02 04:14:33,896 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:14:33,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:14:33,897 INFO L82 PathProgramCache]: Analyzing trace with hash -404393084, now seen corresponding path program 1 times [2019-10-02 04:14:33,897 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:14:33,897 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:14:33,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:14:33,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:14:33,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:14:34,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:14:34,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 04:14:34,283 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 04:14:34,283 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 04:14:34,283 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 04:14:34,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 04:14:34,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 04:14:34,285 INFO L87 Difference]: Start difference. First operand 1948 states and 2565 transitions. Second operand 3 states. [2019-10-02 04:14:36,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:14:36,600 INFO L93 Difference]: Finished difference Result 1950 states and 2566 transitions. [2019-10-02 04:14:36,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 04:14:36,601 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2019-10-02 04:14:36,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:14:36,633 INFO L225 Difference]: With dead ends: 1950 [2019-10-02 04:14:36,633 INFO L226 Difference]: Without dead ends: 1947 [2019-10-02 04:14:36,636 INFO L640 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 [2019-10-02 04:14:36,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1947 states. [2019-10-02 04:14:36,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1947 to 1947. [2019-10-02 04:14:36,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1947 states. [2019-10-02 04:14:36,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1947 states to 1947 states and 2563 transitions. [2019-10-02 04:14:36,780 INFO L78 Accepts]: Start accepts. Automaton has 1947 states and 2563 transitions. Word has length 42 [2019-10-02 04:14:36,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:14:36,786 INFO L475 AbstractCegarLoop]: Abstraction has 1947 states and 2563 transitions. [2019-10-02 04:14:36,787 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 04:14:36,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1947 states and 2563 transitions. [2019-10-02 04:14:36,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-02 04:14:36,801 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:14:36,801 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 04:14:36,802 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:14:36,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:14:36,802 INFO L82 PathProgramCache]: Analyzing trace with hash 348097944, now seen corresponding path program 1 times [2019-10-02 04:14:36,803 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:14:36,803 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:14:36,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:14:36,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:14:36,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:14:37,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:14:37,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 04:14:37,229 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 04:14:37,230 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 04:14:37,230 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 04:14:37,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 04:14:37,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 04:14:37,231 INFO L87 Difference]: Start difference. First operand 1947 states and 2563 transitions. Second operand 3 states. [2019-10-02 04:14:39,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:14:39,559 INFO L93 Difference]: Finished difference Result 1949 states and 2564 transitions. [2019-10-02 04:14:39,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 04:14:39,560 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-10-02 04:14:39,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:14:39,577 INFO L225 Difference]: With dead ends: 1949 [2019-10-02 04:14:39,578 INFO L226 Difference]: Without dead ends: 1946 [2019-10-02 04:14:39,581 INFO L640 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 [2019-10-02 04:14:39,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1946 states. [2019-10-02 04:14:39,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1946 to 1946. [2019-10-02 04:14:39,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1946 states. [2019-10-02 04:14:39,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1946 states to 1946 states and 2561 transitions. [2019-10-02 04:14:39,718 INFO L78 Accepts]: Start accepts. Automaton has 1946 states and 2561 transitions. Word has length 43 [2019-10-02 04:14:39,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:14:39,719 INFO L475 AbstractCegarLoop]: Abstraction has 1946 states and 2561 transitions. [2019-10-02 04:14:39,719 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 04:14:39,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1946 states and 2561 transitions. [2019-10-02 04:14:39,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-10-02 04:14:39,723 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:14:39,723 INFO L411 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] [2019-10-02 04:14:39,723 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:14:39,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:14:39,724 INFO L82 PathProgramCache]: Analyzing trace with hash -2094479097, now seen corresponding path program 1 times [2019-10-02 04:14:39,724 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:14:39,725 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:14:39,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:14:39,738 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:14:39,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:14:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:14:40,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 04:14:40,007 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 04:14:40,008 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 04:14:40,008 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 04:14:40,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 04:14:40,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 04:14:40,011 INFO L87 Difference]: Start difference. First operand 1946 states and 2561 transitions. Second operand 3 states. [2019-10-02 04:14:42,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:14:42,343 INFO L93 Difference]: Finished difference Result 1948 states and 2562 transitions. [2019-10-02 04:14:42,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 04:14:42,344 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2019-10-02 04:14:42,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:14:42,357 INFO L225 Difference]: With dead ends: 1948 [2019-10-02 04:14:42,357 INFO L226 Difference]: Without dead ends: 1945 [2019-10-02 04:14:42,360 INFO L640 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 [2019-10-02 04:14:42,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1945 states. [2019-10-02 04:14:42,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1945 to 1945. [2019-10-02 04:14:42,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1945 states. [2019-10-02 04:14:42,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1945 states to 1945 states and 2559 transitions. [2019-10-02 04:14:42,473 INFO L78 Accepts]: Start accepts. Automaton has 1945 states and 2559 transitions. Word has length 44 [2019-10-02 04:14:42,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:14:42,474 INFO L475 AbstractCegarLoop]: Abstraction has 1945 states and 2559 transitions. [2019-10-02 04:14:42,474 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 04:14:42,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1945 states and 2559 transitions. [2019-10-02 04:14:42,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-02 04:14:42,477 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:14:42,477 INFO L411 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, 1] [2019-10-02 04:14:42,478 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:14:42,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:14:42,478 INFO L82 PathProgramCache]: Analyzing trace with hash -504951173, now seen corresponding path program 1 times [2019-10-02 04:14:42,478 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:14:42,478 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:14:42,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:14:42,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:14:42,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:14:42,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:14:42,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 04:14:42,766 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 04:14:42,766 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 04:14:42,767 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 04:14:42,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 04:14:42,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 04:14:42,768 INFO L87 Difference]: Start difference. First operand 1945 states and 2559 transitions. Second operand 3 states. [2019-10-02 04:14:45,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:14:45,208 INFO L93 Difference]: Finished difference Result 4779 states and 6196 transitions. [2019-10-02 04:14:45,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 04:14:45,209 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2019-10-02 04:14:45,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:14:45,231 INFO L225 Difference]: With dead ends: 4779 [2019-10-02 04:14:45,231 INFO L226 Difference]: Without dead ends: 2831 [2019-10-02 04:14:45,240 INFO L640 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 [2019-10-02 04:14:45,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states. [2019-10-02 04:14:45,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 2822. [2019-10-02 04:14:45,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2822 states. [2019-10-02 04:14:45,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2822 states to 2822 states and 3602 transitions. [2019-10-02 04:14:45,465 INFO L78 Accepts]: Start accepts. Automaton has 2822 states and 3602 transitions. Word has length 45 [2019-10-02 04:14:45,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:14:45,466 INFO L475 AbstractCegarLoop]: Abstraction has 2822 states and 3602 transitions. [2019-10-02 04:14:45,466 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 04:14:45,467 INFO L276 IsEmpty]: Start isEmpty. Operand 2822 states and 3602 transitions. [2019-10-02 04:14:45,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2019-10-02 04:14:45,497 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:14:45,498 INFO L411 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1] [2019-10-02 04:14:45,499 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:14:45,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:14:45,499 INFO L82 PathProgramCache]: Analyzing trace with hash -799576233, now seen corresponding path program 1 times [2019-10-02 04:14:45,500 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:14:45,500 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:14:45,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:14:45,513 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:14:45,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:14:45,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:14:46,063 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2019-10-02 04:14:46,063 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 04:14:46,064 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 04:14:46,066 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 04:14:46,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 04:14:46,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 04:14:46,069 INFO L87 Difference]: Start difference. First operand 2822 states and 3602 transitions. Second operand 3 states. [2019-10-02 04:14:46,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:14:46,460 INFO L93 Difference]: Finished difference Result 6563 states and 8486 transitions. [2019-10-02 04:14:46,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 04:14:46,461 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 303 [2019-10-02 04:14:46,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:14:46,488 INFO L225 Difference]: With dead ends: 6563 [2019-10-02 04:14:46,488 INFO L226 Difference]: Without dead ends: 3752 [2019-10-02 04:14:46,504 INFO L640 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 [2019-10-02 04:14:46,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3752 states. [2019-10-02 04:14:46,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3752 to 3752. [2019-10-02 04:14:46,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3752 states. [2019-10-02 04:14:46,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3752 states to 3752 states and 4893 transitions. [2019-10-02 04:14:46,712 INFO L78 Accepts]: Start accepts. Automaton has 3752 states and 4893 transitions. Word has length 303 [2019-10-02 04:14:46,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:14:46,713 INFO L475 AbstractCegarLoop]: Abstraction has 3752 states and 4893 transitions. [2019-10-02 04:14:46,713 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 04:14:46,713 INFO L276 IsEmpty]: Start isEmpty. Operand 3752 states and 4893 transitions. [2019-10-02 04:14:46,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2019-10-02 04:14:46,733 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:14:46,733 INFO L411 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 04:14:46,734 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:14:46,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:14:46,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1339809601, now seen corresponding path program 1 times [2019-10-02 04:14:46,734 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:14:46,735 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:14:46,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:14:46,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:14:46,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:14:46,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:14:48,060 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2019-10-02 04:14:48,062 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 04:14:48,062 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 04:14:48,063 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 04:14:48,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 04:14:48,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 04:14:48,064 INFO L87 Difference]: Start difference. First operand 3752 states and 4893 transitions. Second operand 3 states. [2019-10-02 04:14:48,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:14:48,270 INFO L93 Difference]: Finished difference Result 7537 states and 9861 transitions. [2019-10-02 04:14:48,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 04:14:48,270 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 329 [2019-10-02 04:14:48,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:14:48,298 INFO L225 Difference]: With dead ends: 7537 [2019-10-02 04:14:48,298 INFO L226 Difference]: Without dead ends: 3796 [2019-10-02 04:14:48,316 INFO L640 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 [2019-10-02 04:14:48,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3796 states. [2019-10-02 04:14:48,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3796 to 3760. [2019-10-02 04:14:48,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3760 states. [2019-10-02 04:14:48,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3760 states to 3760 states and 4901 transitions. [2019-10-02 04:14:48,533 INFO L78 Accepts]: Start accepts. Automaton has 3760 states and 4901 transitions. Word has length 329 [2019-10-02 04:14:48,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:14:48,535 INFO L475 AbstractCegarLoop]: Abstraction has 3760 states and 4901 transitions. [2019-10-02 04:14:48,536 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 04:14:48,536 INFO L276 IsEmpty]: Start isEmpty. Operand 3760 states and 4901 transitions. [2019-10-02 04:14:48,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2019-10-02 04:14:48,554 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:14:48,555 INFO L411 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 04:14:48,555 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:14:48,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:14:48,555 INFO L82 PathProgramCache]: Analyzing trace with hash -2084262986, now seen corresponding path program 1 times [2019-10-02 04:14:48,556 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:14:48,556 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:14:48,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:14:48,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:14:48,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:14:48,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:14:49,161 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 4 proven. 20 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2019-10-02 04:14:49,162 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 04:14:49,162 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 04:14:49,487 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:14:50,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:14:50,647 INFO L256 TraceCheckSpWp]: Trace formula consists of 4892 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-02 04:14:50,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 04:14:50,919 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2019-10-02 04:14:50,943 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 04:14:50,943 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2019-10-02 04:14:50,944 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-02 04:14:50,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-02 04:14:50,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-02 04:14:50,946 INFO L87 Difference]: Start difference. First operand 3760 states and 4901 transitions. Second operand 11 states. [2019-10-02 04:14:51,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:14:51,366 INFO L93 Difference]: Finished difference Result 7597 states and 10159 transitions. [2019-10-02 04:14:51,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-02 04:14:51,366 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 338 [2019-10-02 04:14:51,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:14:51,396 INFO L225 Difference]: With dead ends: 7597 [2019-10-02 04:14:51,397 INFO L226 Difference]: Without dead ends: 3848 [2019-10-02 04:14:51,417 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2019-10-02 04:14:51,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3848 states. [2019-10-02 04:14:51,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3848 to 3824. [2019-10-02 04:14:51,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3824 states. [2019-10-02 04:14:51,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3824 states to 3824 states and 5019 transitions. [2019-10-02 04:14:51,802 INFO L78 Accepts]: Start accepts. Automaton has 3824 states and 5019 transitions. Word has length 338 [2019-10-02 04:14:51,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:14:51,803 INFO L475 AbstractCegarLoop]: Abstraction has 3824 states and 5019 transitions. [2019-10-02 04:14:51,803 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-02 04:14:51,803 INFO L276 IsEmpty]: Start isEmpty. Operand 3824 states and 5019 transitions. [2019-10-02 04:14:51,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2019-10-02 04:14:51,831 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:14:51,831 INFO L411 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 04:14:51,832 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:14:51,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:14:51,833 INFO L82 PathProgramCache]: Analyzing trace with hash 347789852, now seen corresponding path program 1 times [2019-10-02 04:14:51,833 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:14:51,833 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:14:51,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:14:51,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:14:51,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:14:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:14:52,557 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2019-10-02 04:14:52,558 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 04:14:52,558 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 04:14:52,934 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:14:54,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:14:54,141 INFO L256 TraceCheckSpWp]: Trace formula consists of 5140 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-02 04:14:54,159 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 04:14:54,359 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2019-10-02 04:14:54,377 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 04:14:54,378 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2019-10-02 04:14:54,383 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 04:14:54,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 04:14:54,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 04:14:54,384 INFO L87 Difference]: Start difference. First operand 3824 states and 5019 transitions. Second operand 8 states. [2019-10-02 04:14:54,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:14:54,685 INFO L93 Difference]: Finished difference Result 7705 states and 10371 transitions. [2019-10-02 04:14:54,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 04:14:54,685 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 367 [2019-10-02 04:14:54,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:14:54,736 INFO L225 Difference]: With dead ends: 7705 [2019-10-02 04:14:54,736 INFO L226 Difference]: Without dead ends: 3892 [2019-10-02 04:14:54,757 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 04:14:54,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3892 states. [2019-10-02 04:14:55,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3892 to 3868. [2019-10-02 04:14:55,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3868 states. [2019-10-02 04:14:55,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3868 states to 3868 states and 5077 transitions. [2019-10-02 04:14:55,212 INFO L78 Accepts]: Start accepts. Automaton has 3868 states and 5077 transitions. Word has length 367 [2019-10-02 04:14:55,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:14:55,213 INFO L475 AbstractCegarLoop]: Abstraction has 3868 states and 5077 transitions. [2019-10-02 04:14:55,213 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 04:14:55,214 INFO L276 IsEmpty]: Start isEmpty. Operand 3868 states and 5077 transitions. [2019-10-02 04:14:55,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2019-10-02 04:14:55,249 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:14:55,250 INFO L411 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 04:14:55,250 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:14:55,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:14:55,251 INFO L82 PathProgramCache]: Analyzing trace with hash -695976757, now seen corresponding path program 1 times [2019-10-02 04:14:55,251 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:14:55,252 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:14:55,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:14:55,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:14:55,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:14:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:14:55,961 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2019-10-02 04:14:55,962 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 04:14:55,962 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 04:14:56,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:14:57,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:14:57,432 INFO L256 TraceCheckSpWp]: Trace formula consists of 5236 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-02 04:14:57,447 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 04:14:57,599 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2019-10-02 04:14:57,621 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 04:14:57,621 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2019-10-02 04:14:57,622 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 04:14:57,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 04:14:57,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 04:14:57,623 INFO L87 Difference]: Start difference. First operand 3868 states and 5077 transitions. Second operand 8 states. [2019-10-02 04:14:57,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:14:57,874 INFO L93 Difference]: Finished difference Result 7773 states and 10407 transitions. [2019-10-02 04:14:57,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 04:14:57,875 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 389 [2019-10-02 04:14:57,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:14:57,914 INFO L225 Difference]: With dead ends: 7773 [2019-10-02 04:14:57,915 INFO L226 Difference]: Without dead ends: 3916 [2019-10-02 04:14:57,934 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 04:14:57,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3916 states. [2019-10-02 04:14:58,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3916 to 3886. [2019-10-02 04:14:58,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3886 states. [2019-10-02 04:14:58,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3886 states to 3886 states and 5091 transitions. [2019-10-02 04:14:58,143 INFO L78 Accepts]: Start accepts. Automaton has 3886 states and 5091 transitions. Word has length 389 [2019-10-02 04:14:58,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:14:58,144 INFO L475 AbstractCegarLoop]: Abstraction has 3886 states and 5091 transitions. [2019-10-02 04:14:58,144 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 04:14:58,145 INFO L276 IsEmpty]: Start isEmpty. Operand 3886 states and 5091 transitions. [2019-10-02 04:14:58,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2019-10-02 04:14:58,166 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:14:58,167 INFO L411 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 04:14:58,167 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:14:58,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:14:58,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1012771833, now seen corresponding path program 1 times [2019-10-02 04:14:58,169 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:14:58,169 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:14:58,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:14:58,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:14:58,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:14:58,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:14:58,907 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2019-10-02 04:14:58,907 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 04:14:58,908 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 04:14:59,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:15:00,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:15:00,497 INFO L256 TraceCheckSpWp]: Trace formula consists of 5368 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-02 04:15:00,518 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 04:15:00,718 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2019-10-02 04:15:00,742 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 04:15:00,743 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2019-10-02 04:15:00,744 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 04:15:00,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 04:15:00,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 04:15:00,746 INFO L87 Difference]: Start difference. First operand 3886 states and 5091 transitions. Second operand 8 states. [2019-10-02 04:15:01,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:15:01,004 INFO L93 Difference]: Finished difference Result 7825 states and 10461 transitions. [2019-10-02 04:15:01,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 04:15:01,004 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 410 [2019-10-02 04:15:01,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:15:01,029 INFO L225 Difference]: With dead ends: 7825 [2019-10-02 04:15:01,029 INFO L226 Difference]: Without dead ends: 3950 [2019-10-02 04:15:01,049 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 04:15:01,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3950 states. [2019-10-02 04:15:01,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3950 to 3916. [2019-10-02 04:15:01,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3916 states. [2019-10-02 04:15:01,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3916 states to 3916 states and 5123 transitions. [2019-10-02 04:15:01,276 INFO L78 Accepts]: Start accepts. Automaton has 3916 states and 5123 transitions. Word has length 410 [2019-10-02 04:15:01,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:15:01,279 INFO L475 AbstractCegarLoop]: Abstraction has 3916 states and 5123 transitions. [2019-10-02 04:15:01,279 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 04:15:01,279 INFO L276 IsEmpty]: Start isEmpty. Operand 3916 states and 5123 transitions. [2019-10-02 04:15:01,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2019-10-02 04:15:01,301 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:15:01,303 INFO L411 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 04:15:01,304 INFO L418 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:15:01,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:15:01,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1310503114, now seen corresponding path program 1 times [2019-10-02 04:15:01,304 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:15:01,304 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:15:01,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:15:01,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:15:01,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:15:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:15:02,085 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2019-10-02 04:15:02,086 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 04:15:02,086 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-02 04:15:02,087 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-02 04:15:02,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-02 04:15:02,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-02 04:15:02,088 INFO L87 Difference]: Start difference. First operand 3916 states and 5123 transitions. Second operand 6 states. [2019-10-02 04:15:02,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:15:02,374 INFO L93 Difference]: Finished difference Result 7849 states and 10287 transitions. [2019-10-02 04:15:02,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-02 04:15:02,374 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 421 [2019-10-02 04:15:02,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:15:02,400 INFO L225 Difference]: With dead ends: 7849 [2019-10-02 04:15:02,400 INFO L226 Difference]: Without dead ends: 3944 [2019-10-02 04:15:02,423 INFO L640 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 [2019-10-02 04:15:02,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3944 states. [2019-10-02 04:15:02,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3944 to 3924. [2019-10-02 04:15:02,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3924 states. [2019-10-02 04:15:02,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3924 states to 3924 states and 5131 transitions. [2019-10-02 04:15:02,649 INFO L78 Accepts]: Start accepts. Automaton has 3924 states and 5131 transitions. Word has length 421 [2019-10-02 04:15:02,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:15:02,653 INFO L475 AbstractCegarLoop]: Abstraction has 3924 states and 5131 transitions. [2019-10-02 04:15:02,653 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-02 04:15:02,653 INFO L276 IsEmpty]: Start isEmpty. Operand 3924 states and 5131 transitions. [2019-10-02 04:15:02,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2019-10-02 04:15:02,675 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:15:02,675 INFO L411 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 04:15:02,676 INFO L418 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:15:02,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:15:02,676 INFO L82 PathProgramCache]: Analyzing trace with hash -2102512731, now seen corresponding path program 1 times [2019-10-02 04:15:02,676 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:15:02,676 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:15:02,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:15:02,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:15:02,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:15:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:15:03,282 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2019-10-02 04:15:03,283 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 04:15:03,283 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 04:15:03,284 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 04:15:03,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 04:15:03,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 04:15:03,285 INFO L87 Difference]: Start difference. First operand 3924 states and 5131 transitions. Second operand 3 states. [2019-10-02 04:15:05,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:15:05,663 INFO L93 Difference]: Finished difference Result 5117 states and 6529 transitions. [2019-10-02 04:15:05,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 04:15:05,663 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 422 [2019-10-02 04:15:05,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:15:05,683 INFO L225 Difference]: With dead ends: 5117 [2019-10-02 04:15:05,683 INFO L226 Difference]: Without dead ends: 3909 [2019-10-02 04:15:05,692 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 04:15:05,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3909 states. [2019-10-02 04:15:05,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3909 to 3877. [2019-10-02 04:15:05,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3877 states. [2019-10-02 04:15:05,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3877 states to 3877 states and 5063 transitions. [2019-10-02 04:15:05,867 INFO L78 Accepts]: Start accepts. Automaton has 3877 states and 5063 transitions. Word has length 422 [2019-10-02 04:15:05,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:15:05,868 INFO L475 AbstractCegarLoop]: Abstraction has 3877 states and 5063 transitions. [2019-10-02 04:15:05,868 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 04:15:05,868 INFO L276 IsEmpty]: Start isEmpty. Operand 3877 states and 5063 transitions. [2019-10-02 04:15:05,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 775 [2019-10-02 04:15:05,921 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:15:05,923 INFO L411 BasicCegarLoop]: trace histogram [12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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, 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, 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, 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] [2019-10-02 04:15:05,924 INFO L418 AbstractCegarLoop]: === Iteration 16 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:15:05,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:15:05,924 INFO L82 PathProgramCache]: Analyzing trace with hash 948852749, now seen corresponding path program 1 times [2019-10-02 04:15:05,924 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:15:05,924 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:15:05,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:15:05,933 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:15:05,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:15:06,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:15:07,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1313 backedges. 82 proven. 12 refuted. 0 times theorem prover too weak. 1219 trivial. 0 not checked. [2019-10-02 04:15:07,584 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 04:15:07,584 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 04:15:07,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:15:09,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:15:09,361 INFO L256 TraceCheckSpWp]: Trace formula consists of 7792 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-02 04:15:09,383 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 04:15:09,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1313 backedges. 324 proven. 1 refuted. 0 times theorem prover too weak. 988 trivial. 0 not checked. [2019-10-02 04:15:09,702 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 04:15:09,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4] total 13 [2019-10-02 04:15:09,704 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-02 04:15:09,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-02 04:15:09,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2019-10-02 04:15:09,705 INFO L87 Difference]: Start difference. First operand 3877 states and 5063 transitions. Second operand 13 states. [2019-10-02 04:15:10,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:15:10,057 INFO L93 Difference]: Finished difference Result 7843 states and 10281 transitions. [2019-10-02 04:15:10,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-02 04:15:10,057 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 774 [2019-10-02 04:15:10,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:15:10,076 INFO L225 Difference]: With dead ends: 7843 [2019-10-02 04:15:10,077 INFO L226 Difference]: Without dead ends: 3977 [2019-10-02 04:15:10,091 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 787 GetRequests, 776 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2019-10-02 04:15:10,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3977 states. [2019-10-02 04:15:10,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3977 to 3929. [2019-10-02 04:15:10,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3929 states. [2019-10-02 04:15:10,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3929 states to 3929 states and 5131 transitions. [2019-10-02 04:15:10,275 INFO L78 Accepts]: Start accepts. Automaton has 3929 states and 5131 transitions. Word has length 774 [2019-10-02 04:15:10,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:15:10,278 INFO L475 AbstractCegarLoop]: Abstraction has 3929 states and 5131 transitions. [2019-10-02 04:15:10,278 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-02 04:15:10,278 INFO L276 IsEmpty]: Start isEmpty. Operand 3929 states and 5131 transitions. [2019-10-02 04:15:10,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 851 [2019-10-02 04:15:10,344 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:15:10,345 INFO L411 BasicCegarLoop]: trace histogram [12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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, 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, 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] [2019-10-02 04:15:10,345 INFO L418 AbstractCegarLoop]: === Iteration 17 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:15:10,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:15:10,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1881154189, now seen corresponding path program 2 times [2019-10-02 04:15:10,346 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:15:10,346 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:15:10,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:15:10,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:15:10,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:15:10,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:15:11,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1639 backedges. 91 proven. 8 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2019-10-02 04:15:11,992 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 04:15:11,992 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 04:15:12,261 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-10-02 04:15:13,070 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-10-02 04:15:13,071 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 04:15:13,098 INFO L256 TraceCheckSpWp]: Trace formula consists of 3345 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-02 04:15:13,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 04:15:13,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1639 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 1576 trivial. 0 not checked. [2019-10-02 04:15:13,681 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 04:15:13,682 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2019-10-02 04:15:13,684 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-02 04:15:13,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-02 04:15:13,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-02 04:15:13,685 INFO L87 Difference]: Start difference. First operand 3929 states and 5131 transitions. Second operand 9 states. [2019-10-02 04:15:13,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:15:13,892 INFO L93 Difference]: Finished difference Result 7879 states and 10313 transitions. [2019-10-02 04:15:13,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-02 04:15:13,892 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 850 [2019-10-02 04:15:13,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:15:13,911 INFO L225 Difference]: With dead ends: 7879 [2019-10-02 04:15:13,911 INFO L226 Difference]: Without dead ends: 3953 [2019-10-02 04:15:13,922 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 858 GetRequests, 850 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-02 04:15:13,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3953 states. [2019-10-02 04:15:14,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3953 to 3941. [2019-10-02 04:15:14,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3941 states. [2019-10-02 04:15:14,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 5143 transitions. [2019-10-02 04:15:14,088 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 5143 transitions. Word has length 850 [2019-10-02 04:15:14,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:15:14,089 INFO L475 AbstractCegarLoop]: Abstraction has 3941 states and 5143 transitions. [2019-10-02 04:15:14,089 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-02 04:15:14,089 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 5143 transitions. [2019-10-02 04:15:14,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 911 [2019-10-02 04:15:14,116 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:15:14,117 INFO L411 BasicCegarLoop]: trace histogram [14, 14, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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, 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, 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] [2019-10-02 04:15:14,118 INFO L418 AbstractCegarLoop]: === Iteration 18 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:15:14,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:15:14,118 INFO L82 PathProgramCache]: Analyzing trace with hash -748842579, now seen corresponding path program 1 times [2019-10-02 04:15:14,118 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:15:14,118 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:15:14,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:15:14,126 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 04:15:14,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:15:14,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:15:16,135 INFO L134 CoverageAnalysis]: Checked inductivity of 2109 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 2065 trivial. 0 not checked. [2019-10-02 04:15:16,136 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 04:15:16,136 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 04:15:16,379 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:15:17,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:15:18,031 INFO L256 TraceCheckSpWp]: Trace formula consists of 8866 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-02 04:15:18,060 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 04:15:19,168 INFO L134 CoverageAnalysis]: Checked inductivity of 2109 backedges. 377 proven. 8 refuted. 0 times theorem prover too weak. 1724 trivial. 0 not checked. [2019-10-02 04:15:19,202 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 04:15:19,203 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5] total 14 [2019-10-02 04:15:19,208 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-02 04:15:19,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-02 04:15:19,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2019-10-02 04:15:19,211 INFO L87 Difference]: Start difference. First operand 3941 states and 5143 transitions. Second operand 14 states. [2019-10-02 04:15:19,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:15:19,712 INFO L93 Difference]: Finished difference Result 7975 states and 10421 transitions. [2019-10-02 04:15:19,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-02 04:15:19,712 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 910 [2019-10-02 04:15:19,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:15:19,732 INFO L225 Difference]: With dead ends: 7975 [2019-10-02 04:15:19,732 INFO L226 Difference]: Without dead ends: 4045 [2019-10-02 04:15:19,743 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 921 GetRequests, 908 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2019-10-02 04:15:19,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4045 states. [2019-10-02 04:15:19,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4045 to 4037. [2019-10-02 04:15:19,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4037 states. [2019-10-02 04:15:19,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4037 states to 4037 states and 5259 transitions. [2019-10-02 04:15:19,959 INFO L78 Accepts]: Start accepts. Automaton has 4037 states and 5259 transitions. Word has length 910 [2019-10-02 04:15:19,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:15:19,960 INFO L475 AbstractCegarLoop]: Abstraction has 4037 states and 5259 transitions. [2019-10-02 04:15:19,960 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-02 04:15:19,961 INFO L276 IsEmpty]: Start isEmpty. Operand 4037 states and 5259 transitions. [2019-10-02 04:15:19,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 944 [2019-10-02 04:15:19,997 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:15:19,998 INFO L411 BasicCegarLoop]: trace histogram [14, 14, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 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, 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, 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, 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, 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] [2019-10-02 04:15:19,998 INFO L418 AbstractCegarLoop]: === Iteration 19 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:15:19,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:15:19,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1394741384, now seen corresponding path program 1 times [2019-10-02 04:15:19,999 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:15:19,999 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:15:20,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:15:20,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:15:20,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:15:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:15:22,292 INFO L134 CoverageAnalysis]: Checked inductivity of 2209 backedges. 31 proven. 35 refuted. 0 times theorem prover too weak. 2143 trivial. 0 not checked. [2019-10-02 04:15:22,292 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 04:15:22,293 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 04:15:22,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:15:24,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:15:24,209 INFO L256 TraceCheckSpWp]: Trace formula consists of 9019 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-02 04:15:24,234 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 04:15:24,788 INFO L134 CoverageAnalysis]: Checked inductivity of 2209 backedges. 1288 proven. 1 refuted. 0 times theorem prover too weak. 920 trivial. 0 not checked. [2019-10-02 04:15:24,810 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 04:15:24,810 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5] total 16 [2019-10-02 04:15:24,812 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-02 04:15:24,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-02 04:15:24,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2019-10-02 04:15:24,813 INFO L87 Difference]: Start difference. First operand 4037 states and 5259 transitions. Second operand 16 states. [2019-10-02 04:15:25,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:15:25,175 INFO L93 Difference]: Finished difference Result 8103 states and 10575 transitions. [2019-10-02 04:15:25,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-02 04:15:25,175 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 943 [2019-10-02 04:15:25,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:15:25,196 INFO L225 Difference]: With dead ends: 8103 [2019-10-02 04:15:25,196 INFO L226 Difference]: Without dead ends: 4069 [2019-10-02 04:15:25,208 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 957 GetRequests, 941 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2019-10-02 04:15:25,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4069 states. [2019-10-02 04:15:25,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4069 to 4061. [2019-10-02 04:15:25,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4061 states. [2019-10-02 04:15:25,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4061 states to 4061 states and 5283 transitions. [2019-10-02 04:15:25,418 INFO L78 Accepts]: Start accepts. Automaton has 4061 states and 5283 transitions. Word has length 943 [2019-10-02 04:15:25,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:15:25,419 INFO L475 AbstractCegarLoop]: Abstraction has 4061 states and 5283 transitions. [2019-10-02 04:15:25,419 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-02 04:15:25,419 INFO L276 IsEmpty]: Start isEmpty. Operand 4061 states and 5283 transitions. [2019-10-02 04:15:25,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 951 [2019-10-02 04:15:25,448 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:15:25,449 INFO L411 BasicCegarLoop]: trace histogram [14, 14, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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, 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, 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] [2019-10-02 04:15:25,449 INFO L418 AbstractCegarLoop]: === Iteration 20 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:15:25,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:15:25,450 INFO L82 PathProgramCache]: Analyzing trace with hash -508489907, now seen corresponding path program 1 times [2019-10-02 04:15:25,450 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:15:25,451 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:15:25,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:15:25,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:15:25,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:15:27,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:15:29,063 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 25 proven. 3 refuted. 0 times theorem prover too weak. 2205 trivial. 0 not checked. [2019-10-02 04:15:29,064 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 04:15:29,064 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 04:15:29,305 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:15:30,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:15:30,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 9060 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-02 04:15:30,992 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 04:15:31,524 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 1303 proven. 3 refuted. 0 times theorem prover too weak. 927 trivial. 0 not checked. [2019-10-02 04:15:31,546 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 04:15:31,547 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2019-10-02 04:15:31,552 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-02 04:15:31,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-02 04:15:31,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-10-02 04:15:31,553 INFO L87 Difference]: Start difference. First operand 4061 states and 5283 transitions. Second operand 10 states. [2019-10-02 04:15:31,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:15:31,755 INFO L93 Difference]: Finished difference Result 8123 states and 10583 transitions. [2019-10-02 04:15:31,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-02 04:15:31,755 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 950 [2019-10-02 04:15:31,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:15:31,776 INFO L225 Difference]: With dead ends: 8123 [2019-10-02 04:15:31,777 INFO L226 Difference]: Without dead ends: 4065 [2019-10-02 04:15:31,788 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 956 GetRequests, 947 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2019-10-02 04:15:31,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4065 states. [2019-10-02 04:15:31,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4065 to 4065. [2019-10-02 04:15:31,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4065 states. [2019-10-02 04:15:31,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4065 states to 4065 states and 5287 transitions. [2019-10-02 04:15:31,960 INFO L78 Accepts]: Start accepts. Automaton has 4065 states and 5287 transitions. Word has length 950 [2019-10-02 04:15:31,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:15:31,962 INFO L475 AbstractCegarLoop]: Abstraction has 4065 states and 5287 transitions. [2019-10-02 04:15:31,962 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-02 04:15:31,962 INFO L276 IsEmpty]: Start isEmpty. Operand 4065 states and 5287 transitions. [2019-10-02 04:15:31,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 953 [2019-10-02 04:15:31,981 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:15:31,985 INFO L411 BasicCegarLoop]: trace histogram [14, 14, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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, 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, 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] [2019-10-02 04:15:31,986 INFO L418 AbstractCegarLoop]: === Iteration 21 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:15:31,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:15:31,987 INFO L82 PathProgramCache]: Analyzing trace with hash -924243335, now seen corresponding path program 2 times [2019-10-02 04:15:31,987 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:15:31,988 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:15:31,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:15:31,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:15:31,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:15:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:15:35,118 INFO L134 CoverageAnalysis]: Checked inductivity of 2246 backedges. 32 proven. 6 refuted. 0 times theorem prover too weak. 2208 trivial. 0 not checked. [2019-10-02 04:15:35,119 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 04:15:35,119 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 04:15:35,355 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-10-02 04:15:48,941 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-02 04:15:48,941 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 04:15:49,034 INFO L256 TraceCheckSpWp]: Trace formula consists of 9072 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-02 04:15:49,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 04:15:49,438 INFO L134 CoverageAnalysis]: Checked inductivity of 2246 backedges. 1310 proven. 6 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2019-10-02 04:15:49,474 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 04:15:49,475 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-10-02 04:15:49,476 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-02 04:15:49,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-02 04:15:49,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2019-10-02 04:15:49,477 INFO L87 Difference]: Start difference. First operand 4065 states and 5287 transitions. Second operand 12 states. [2019-10-02 04:15:49,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:15:49,766 INFO L93 Difference]: Finished difference Result 8131 states and 10591 transitions. [2019-10-02 04:15:49,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-02 04:15:49,767 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 952 [2019-10-02 04:15:49,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:15:49,787 INFO L225 Difference]: With dead ends: 8131 [2019-10-02 04:15:49,787 INFO L226 Difference]: Without dead ends: 4069 [2019-10-02 04:15:49,796 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 959 GetRequests, 948 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=95, Unknown=0, NotChecked=0, Total=156 [2019-10-02 04:15:49,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4069 states. [2019-10-02 04:15:49,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4069 to 4069. [2019-10-02 04:15:49,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4069 states. [2019-10-02 04:15:49,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4069 states to 4069 states and 5291 transitions. [2019-10-02 04:15:49,962 INFO L78 Accepts]: Start accepts. Automaton has 4069 states and 5291 transitions. Word has length 952 [2019-10-02 04:15:49,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:15:49,964 INFO L475 AbstractCegarLoop]: Abstraction has 4069 states and 5291 transitions. [2019-10-02 04:15:49,964 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-02 04:15:49,964 INFO L276 IsEmpty]: Start isEmpty. Operand 4069 states and 5291 transitions. [2019-10-02 04:15:49,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 955 [2019-10-02 04:15:49,988 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:15:49,989 INFO L411 BasicCegarLoop]: trace histogram [14, 14, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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, 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, 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] [2019-10-02 04:15:49,989 INFO L418 AbstractCegarLoop]: === Iteration 22 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:15:49,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:15:49,990 INFO L82 PathProgramCache]: Analyzing trace with hash 446431565, now seen corresponding path program 3 times [2019-10-02 04:15:49,990 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:15:49,990 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:15:49,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:15:49,999 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 04:15:49,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:15:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:15:53,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2263 backedges. 41 proven. 10 refuted. 0 times theorem prover too weak. 2212 trivial. 0 not checked. [2019-10-02 04:15:53,325 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 04:15:53,325 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 04:15:53,576 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-10-02 04:16:18,590 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-10-02 04:16:18,590 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 04:16:18,654 INFO L256 TraceCheckSpWp]: Trace formula consists of 4464 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-02 04:16:18,668 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 04:16:19,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2263 backedges. 87 proven. 10 refuted. 0 times theorem prover too weak. 2166 trivial. 0 not checked. [2019-10-02 04:16:19,252 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 04:16:19,253 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2019-10-02 04:16:19,254 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-02 04:16:19,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-02 04:16:19,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=109, Unknown=0, NotChecked=0, Total=182 [2019-10-02 04:16:19,255 INFO L87 Difference]: Start difference. First operand 4069 states and 5291 transitions. Second operand 14 states. [2019-10-02 04:16:19,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:16:19,448 INFO L93 Difference]: Finished difference Result 8139 states and 10599 transitions. [2019-10-02 04:16:19,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 04:16:19,449 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 954 [2019-10-02 04:16:19,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:16:19,474 INFO L225 Difference]: With dead ends: 8139 [2019-10-02 04:16:19,474 INFO L226 Difference]: Without dead ends: 4073 [2019-10-02 04:16:19,485 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 962 GetRequests, 949 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2019-10-02 04:16:19,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4073 states. [2019-10-02 04:16:19,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4073 to 4073. [2019-10-02 04:16:19,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4073 states. [2019-10-02 04:16:19,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4073 states to 4073 states and 5295 transitions. [2019-10-02 04:16:19,647 INFO L78 Accepts]: Start accepts. Automaton has 4073 states and 5295 transitions. Word has length 954 [2019-10-02 04:16:19,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:16:19,649 INFO L475 AbstractCegarLoop]: Abstraction has 4073 states and 5295 transitions. [2019-10-02 04:16:19,649 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-02 04:16:19,649 INFO L276 IsEmpty]: Start isEmpty. Operand 4073 states and 5295 transitions. [2019-10-02 04:16:19,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 957 [2019-10-02 04:16:19,667 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:16:19,668 INFO L411 BasicCegarLoop]: trace histogram [14, 14, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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, 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, 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] [2019-10-02 04:16:19,669 INFO L418 AbstractCegarLoop]: === Iteration 23 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:16:19,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:16:19,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1970958713, now seen corresponding path program 4 times [2019-10-02 04:16:19,669 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:16:19,670 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:16:19,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:16:19,679 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 04:16:19,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:16:23,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:16:24,490 INFO L134 CoverageAnalysis]: Checked inductivity of 2284 backedges. 100 proven. 53 refuted. 0 times theorem prover too weak. 2131 trivial. 0 not checked. [2019-10-02 04:16:24,491 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 04:16:24,491 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 04:16:24,734 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-10-02 04:16:26,417 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-10-02 04:16:26,417 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 04:16:26,458 INFO L256 TraceCheckSpWp]: Trace formula consists of 9096 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-02 04:16:26,472 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 04:16:27,028 INFO L134 CoverageAnalysis]: Checked inductivity of 2284 backedges. 98 proven. 15 refuted. 0 times theorem prover too weak. 2171 trivial. 0 not checked. [2019-10-02 04:16:27,050 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 04:16:27,050 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2019-10-02 04:16:27,051 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-02 04:16:27,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-02 04:16:27,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=144, Unknown=0, NotChecked=0, Total=240 [2019-10-02 04:16:27,052 INFO L87 Difference]: Start difference. First operand 4073 states and 5295 transitions. Second operand 16 states. [2019-10-02 04:16:27,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:16:27,195 INFO L93 Difference]: Finished difference Result 8147 states and 10607 transitions. [2019-10-02 04:16:27,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-02 04:16:27,196 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 956 [2019-10-02 04:16:27,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:16:27,210 INFO L225 Difference]: With dead ends: 8147 [2019-10-02 04:16:27,210 INFO L226 Difference]: Without dead ends: 4077 [2019-10-02 04:16:27,220 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 965 GetRequests, 950 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2019-10-02 04:16:27,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4077 states. [2019-10-02 04:16:27,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4077 to 4077. [2019-10-02 04:16:27,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4077 states. [2019-10-02 04:16:27,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4077 states to 4077 states and 5299 transitions. [2019-10-02 04:16:27,381 INFO L78 Accepts]: Start accepts. Automaton has 4077 states and 5299 transitions. Word has length 956 [2019-10-02 04:16:27,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:16:27,382 INFO L475 AbstractCegarLoop]: Abstraction has 4077 states and 5299 transitions. [2019-10-02 04:16:27,382 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-02 04:16:27,382 INFO L276 IsEmpty]: Start isEmpty. Operand 4077 states and 5299 transitions. [2019-10-02 04:16:27,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 959 [2019-10-02 04:16:27,400 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:16:27,401 INFO L411 BasicCegarLoop]: trace histogram [14, 14, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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, 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, 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] [2019-10-02 04:16:27,402 INFO L418 AbstractCegarLoop]: === Iteration 24 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:16:27,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:16:27,402 INFO L82 PathProgramCache]: Analyzing trace with hash 951538509, now seen corresponding path program 5 times [2019-10-02 04:16:27,402 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:16:27,403 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:16:27,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:16:27,409 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 04:16:27,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:16:28,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:16:29,128 INFO L134 CoverageAnalysis]: Checked inductivity of 2309 backedges. 65 proven. 21 refuted. 0 times theorem prover too weak. 2223 trivial. 0 not checked. [2019-10-02 04:16:29,128 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 04:16:29,128 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 04:16:29,384 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-10-02 04:16:42,139 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2019-10-02 04:16:42,139 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 04:16:42,160 INFO L256 TraceCheckSpWp]: Trace formula consists of 2561 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-02 04:16:42,182 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 04:16:42,755 INFO L134 CoverageAnalysis]: Checked inductivity of 2309 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 2105 trivial. 0 not checked. [2019-10-02 04:16:42,777 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 04:16:42,777 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2019-10-02 04:16:42,778 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-02 04:16:42,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-02 04:16:42,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-10-02 04:16:42,779 INFO L87 Difference]: Start difference. First operand 4077 states and 5299 transitions. Second operand 14 states. [2019-10-02 04:16:43,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:16:43,064 INFO L93 Difference]: Finished difference Result 8179 states and 10643 transitions. [2019-10-02 04:16:43,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-02 04:16:43,064 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 958 [2019-10-02 04:16:43,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:16:43,080 INFO L225 Difference]: With dead ends: 8179 [2019-10-02 04:16:43,081 INFO L226 Difference]: Without dead ends: 4105 [2019-10-02 04:16:43,092 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 968 GetRequests, 955 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2019-10-02 04:16:43,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4105 states. [2019-10-02 04:16:43,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4105 to 4081. [2019-10-02 04:16:43,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4081 states. [2019-10-02 04:16:43,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4081 states to 4081 states and 5303 transitions. [2019-10-02 04:16:43,252 INFO L78 Accepts]: Start accepts. Automaton has 4081 states and 5303 transitions. Word has length 958 [2019-10-02 04:16:43,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:16:43,253 INFO L475 AbstractCegarLoop]: Abstraction has 4081 states and 5303 transitions. [2019-10-02 04:16:43,253 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-02 04:16:43,253 INFO L276 IsEmpty]: Start isEmpty. Operand 4081 states and 5303 transitions. [2019-10-02 04:16:43,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 961 [2019-10-02 04:16:43,273 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:16:43,274 INFO L411 BasicCegarLoop]: trace histogram [14, 14, 14, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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, 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, 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] [2019-10-02 04:16:43,275 INFO L418 AbstractCegarLoop]: === Iteration 25 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:16:43,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:16:43,275 INFO L82 PathProgramCache]: Analyzing trace with hash -553026877, now seen corresponding path program 1 times [2019-10-02 04:16:43,275 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:16:43,276 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:16:43,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:16:43,283 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 04:16:43,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:16:49,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:16:50,510 INFO L134 CoverageAnalysis]: Checked inductivity of 2338 backedges. 100 proven. 94 refuted. 0 times theorem prover too weak. 2144 trivial. 0 not checked. [2019-10-02 04:16:50,510 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 04:16:50,511 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 04:16:50,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:16:52,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:16:52,428 INFO L256 TraceCheckSpWp]: Trace formula consists of 9160 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-02 04:16:52,445 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 04:16:53,746 INFO L134 CoverageAnalysis]: Checked inductivity of 2338 backedges. 1358 proven. 28 refuted. 0 times theorem prover too weak. 952 trivial. 0 not checked. [2019-10-02 04:16:53,780 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 04:16:53,781 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2019-10-02 04:16:53,783 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-02 04:16:53,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-02 04:16:53,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=229, Unknown=0, NotChecked=0, Total=380 [2019-10-02 04:16:53,787 INFO L87 Difference]: Start difference. First operand 4081 states and 5303 transitions. Second operand 20 states. [2019-10-02 04:16:54,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:16:54,064 INFO L93 Difference]: Finished difference Result 8163 states and 10623 transitions. [2019-10-02 04:16:54,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-02 04:16:54,065 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 960 [2019-10-02 04:16:54,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:16:54,085 INFO L225 Difference]: With dead ends: 8163 [2019-10-02 04:16:54,085 INFO L226 Difference]: Without dead ends: 4085 [2019-10-02 04:16:54,098 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 971 GetRequests, 952 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=257, Unknown=0, NotChecked=0, Total=420 [2019-10-02 04:16:54,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4085 states. [2019-10-02 04:16:54,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4085 to 4085. [2019-10-02 04:16:54,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4085 states. [2019-10-02 04:16:54,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4085 states to 4085 states and 5307 transitions. [2019-10-02 04:16:54,267 INFO L78 Accepts]: Start accepts. Automaton has 4085 states and 5307 transitions. Word has length 960 [2019-10-02 04:16:54,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:16:54,268 INFO L475 AbstractCegarLoop]: Abstraction has 4085 states and 5307 transitions. [2019-10-02 04:16:54,268 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-10-02 04:16:54,269 INFO L276 IsEmpty]: Start isEmpty. Operand 4085 states and 5307 transitions. [2019-10-02 04:16:54,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 963 [2019-10-02 04:16:54,290 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:16:54,291 INFO L411 BasicCegarLoop]: trace histogram [16, 14, 14, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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, 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, 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] [2019-10-02 04:16:54,291 INFO L418 AbstractCegarLoop]: === Iteration 26 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:16:54,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:16:54,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1173146643, now seen corresponding path program 2 times [2019-10-02 04:16:54,292 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:16:54,292 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:16:54,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:16:54,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:16:54,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:16:57,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:16:58,719 INFO L134 CoverageAnalysis]: Checked inductivity of 2371 backedges. 100 proven. 119 refuted. 0 times theorem prover too weak. 2152 trivial. 0 not checked. [2019-10-02 04:16:58,720 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 04:16:58,720 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 04:16:58,980 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-10-02 04:17:12,679 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-02 04:17:12,679 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 04:17:12,749 INFO L256 TraceCheckSpWp]: Trace formula consists of 9172 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-02 04:17:12,771 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 04:17:13,425 INFO L134 CoverageAnalysis]: Checked inductivity of 2371 backedges. 1375 proven. 36 refuted. 0 times theorem prover too weak. 960 trivial. 0 not checked. [2019-10-02 04:17:13,461 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 04:17:13,461 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2019-10-02 04:17:13,463 INFO L454 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-02 04:17:13,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-02 04:17:13,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=279, Unknown=0, NotChecked=0, Total=462 [2019-10-02 04:17:13,464 INFO L87 Difference]: Start difference. First operand 4085 states and 5307 transitions. Second operand 22 states. [2019-10-02 04:17:13,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:17:13,645 INFO L93 Difference]: Finished difference Result 8171 states and 10631 transitions. [2019-10-02 04:17:13,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-02 04:17:13,646 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 962 [2019-10-02 04:17:13,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:17:13,663 INFO L225 Difference]: With dead ends: 8171 [2019-10-02 04:17:13,664 INFO L226 Difference]: Without dead ends: 4089 [2019-10-02 04:17:13,675 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 974 GetRequests, 953 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=196, Invalid=310, Unknown=0, NotChecked=0, Total=506 [2019-10-02 04:17:13,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4089 states. [2019-10-02 04:17:13,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4089 to 4089. [2019-10-02 04:17:13,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4089 states. [2019-10-02 04:17:13,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4089 states to 4089 states and 5311 transitions. [2019-10-02 04:17:13,849 INFO L78 Accepts]: Start accepts. Automaton has 4089 states and 5311 transitions. Word has length 962 [2019-10-02 04:17:13,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:17:13,851 INFO L475 AbstractCegarLoop]: Abstraction has 4089 states and 5311 transitions. [2019-10-02 04:17:13,851 INFO L476 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-10-02 04:17:13,851 INFO L276 IsEmpty]: Start isEmpty. Operand 4089 states and 5311 transitions. [2019-10-02 04:17:13,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 965 [2019-10-02 04:17:13,873 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:17:13,874 INFO L411 BasicCegarLoop]: trace histogram [18, 14, 14, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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, 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, 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] [2019-10-02 04:17:13,874 INFO L418 AbstractCegarLoop]: === Iteration 27 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:17:13,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:17:13,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1996535293, now seen corresponding path program 3 times [2019-10-02 04:17:13,875 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:17:13,875 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:17:13,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:17:13,888 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 04:17:13,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:17:21,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:17:22,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2408 backedges. 100 proven. 147 refuted. 0 times theorem prover too weak. 2161 trivial. 0 not checked. [2019-10-02 04:17:22,160 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 04:17:22,160 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 04:17:22,419 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-10-02 04:18:24,207 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2019-10-02 04:18:24,207 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 04:18:24,327 INFO L256 TraceCheckSpWp]: Trace formula consists of 7931 conjuncts, 12 conjunts are in the unsatisfiable core [2019-10-02 04:18:24,341 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 04:18:24,963 INFO L134 CoverageAnalysis]: Checked inductivity of 2408 backedges. 162 proven. 45 refuted. 0 times theorem prover too weak. 2201 trivial. 0 not checked. [2019-10-02 04:18:25,064 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 04:18:25,064 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2019-10-02 04:18:25,065 INFO L454 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-02 04:18:25,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-02 04:18:25,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=334, Unknown=0, NotChecked=0, Total=552 [2019-10-02 04:18:25,066 INFO L87 Difference]: Start difference. First operand 4089 states and 5311 transitions. Second operand 24 states. [2019-10-02 04:18:25,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:18:25,262 INFO L93 Difference]: Finished difference Result 8179 states and 10639 transitions. [2019-10-02 04:18:25,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-02 04:18:25,262 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 964 [2019-10-02 04:18:25,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:18:25,275 INFO L225 Difference]: With dead ends: 8179 [2019-10-02 04:18:25,275 INFO L226 Difference]: Without dead ends: 4093 [2019-10-02 04:18:25,284 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 977 GetRequests, 954 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=232, Invalid=368, Unknown=0, NotChecked=0, Total=600 [2019-10-02 04:18:25,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4093 states. [2019-10-02 04:18:25,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4093 to 4093. [2019-10-02 04:18:25,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4093 states. [2019-10-02 04:18:25,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4093 states to 4093 states and 5315 transitions. [2019-10-02 04:18:25,433 INFO L78 Accepts]: Start accepts. Automaton has 4093 states and 5315 transitions. Word has length 964 [2019-10-02 04:18:25,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:18:25,434 INFO L475 AbstractCegarLoop]: Abstraction has 4093 states and 5315 transitions. [2019-10-02 04:18:25,434 INFO L476 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-02 04:18:25,434 INFO L276 IsEmpty]: Start isEmpty. Operand 4093 states and 5315 transitions. [2019-10-02 04:18:25,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 967 [2019-10-02 04:18:25,455 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:18:25,455 INFO L411 BasicCegarLoop]: trace histogram [20, 14, 14, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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, 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, 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] [2019-10-02 04:18:25,456 INFO L418 AbstractCegarLoop]: === Iteration 28 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:18:25,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:18:25,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1420681043, now seen corresponding path program 4 times [2019-10-02 04:18:25,457 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:18:25,457 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:18:25,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:18:25,464 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 04:18:25,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:18:29,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:18:30,463 INFO L134 CoverageAnalysis]: Checked inductivity of 2449 backedges. 100 proven. 178 refuted. 0 times theorem prover too weak. 2171 trivial. 0 not checked. [2019-10-02 04:18:30,463 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 04:18:30,463 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 04:18:30,721 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-10-02 04:18:32,638 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-10-02 04:18:32,638 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 04:18:32,685 INFO L256 TraceCheckSpWp]: Trace formula consists of 9196 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-02 04:18:32,699 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 04:18:33,199 INFO L134 CoverageAnalysis]: Checked inductivity of 2449 backedges. 183 proven. 55 refuted. 0 times theorem prover too weak. 2211 trivial. 0 not checked. [2019-10-02 04:18:33,224 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 04:18:33,225 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2019-10-02 04:18:33,226 INFO L454 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-02 04:18:33,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-02 04:18:33,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=394, Unknown=0, NotChecked=0, Total=650 [2019-10-02 04:18:33,227 INFO L87 Difference]: Start difference. First operand 4093 states and 5315 transitions. Second operand 26 states. [2019-10-02 04:18:33,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:18:33,403 INFO L93 Difference]: Finished difference Result 8187 states and 10647 transitions. [2019-10-02 04:18:33,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-02 04:18:33,404 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 966 [2019-10-02 04:18:33,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:18:33,418 INFO L225 Difference]: With dead ends: 8187 [2019-10-02 04:18:33,418 INFO L226 Difference]: Without dead ends: 4097 [2019-10-02 04:18:33,428 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 980 GetRequests, 955 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=271, Invalid=431, Unknown=0, NotChecked=0, Total=702 [2019-10-02 04:18:33,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4097 states. [2019-10-02 04:18:33,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4097 to 4097. [2019-10-02 04:18:33,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4097 states. [2019-10-02 04:18:33,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4097 states to 4097 states and 5319 transitions. [2019-10-02 04:18:33,568 INFO L78 Accepts]: Start accepts. Automaton has 4097 states and 5319 transitions. Word has length 966 [2019-10-02 04:18:33,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:18:33,569 INFO L475 AbstractCegarLoop]: Abstraction has 4097 states and 5319 transitions. [2019-10-02 04:18:33,569 INFO L476 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-02 04:18:33,569 INFO L276 IsEmpty]: Start isEmpty. Operand 4097 states and 5319 transitions. [2019-10-02 04:18:33,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 969 [2019-10-02 04:18:33,588 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:18:33,589 INFO L411 BasicCegarLoop]: trace histogram [22, 14, 14, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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, 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, 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] [2019-10-02 04:18:33,589 INFO L418 AbstractCegarLoop]: === Iteration 29 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:18:33,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:18:33,590 INFO L82 PathProgramCache]: Analyzing trace with hash -390870717, now seen corresponding path program 5 times [2019-10-02 04:18:33,590 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:18:33,590 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:18:33,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:18:33,597 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 04:18:33,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:18:36,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:18:36,884 INFO L134 CoverageAnalysis]: Checked inductivity of 2494 backedges. 160 proven. 66 refuted. 0 times theorem prover too weak. 2268 trivial. 0 not checked. [2019-10-02 04:18:36,884 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 04:18:36,885 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 04:18:37,140 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-10-02 04:19:38,669 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2019-10-02 04:19:38,669 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 04:19:38,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 5865 conjuncts, 14 conjunts are in the unsatisfiable core [2019-10-02 04:19:38,757 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 04:19:39,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2494 backedges. 1438 proven. 66 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2019-10-02 04:19:39,546 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 04:19:39,547 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2019-10-02 04:19:39,548 INFO L454 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-02 04:19:39,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-02 04:19:39,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=297, Invalid=459, Unknown=0, NotChecked=0, Total=756 [2019-10-02 04:19:39,549 INFO L87 Difference]: Start difference. First operand 4097 states and 5319 transitions. Second operand 28 states. [2019-10-02 04:19:39,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:19:39,717 INFO L93 Difference]: Finished difference Result 8195 states and 10655 transitions. [2019-10-02 04:19:39,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-02 04:19:39,717 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 968 [2019-10-02 04:19:39,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:19:39,732 INFO L225 Difference]: With dead ends: 8195 [2019-10-02 04:19:39,732 INFO L226 Difference]: Without dead ends: 4101 [2019-10-02 04:19:39,742 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 983 GetRequests, 956 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=499, Unknown=0, NotChecked=0, Total=812 [2019-10-02 04:19:39,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4101 states. [2019-10-02 04:19:39,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4101 to 4101. [2019-10-02 04:19:39,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4101 states. [2019-10-02 04:19:39,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4101 states to 4101 states and 5323 transitions. [2019-10-02 04:19:39,870 INFO L78 Accepts]: Start accepts. Automaton has 4101 states and 5323 transitions. Word has length 968 [2019-10-02 04:19:39,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:19:39,871 INFO L475 AbstractCegarLoop]: Abstraction has 4101 states and 5323 transitions. [2019-10-02 04:19:39,872 INFO L476 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-02 04:19:39,872 INFO L276 IsEmpty]: Start isEmpty. Operand 4101 states and 5323 transitions. [2019-10-02 04:19:39,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 971 [2019-10-02 04:19:39,885 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:19:39,886 INFO L411 BasicCegarLoop]: trace histogram [24, 14, 14, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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, 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, 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] [2019-10-02 04:19:39,886 INFO L418 AbstractCegarLoop]: === Iteration 30 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:19:39,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:19:39,886 INFO L82 PathProgramCache]: Analyzing trace with hash 2099141997, now seen corresponding path program 6 times [2019-10-02 04:19:39,886 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:19:39,886 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:19:39,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:19:39,892 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 04:19:39,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:19:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:19:42,170 INFO L134 CoverageAnalysis]: Checked inductivity of 2543 backedges. 185 proven. 78 refuted. 0 times theorem prover too weak. 2280 trivial. 0 not checked. [2019-10-02 04:19:42,170 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 04:19:42,170 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 04:19:42,427 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-10-02 04:21:08,887 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2019-10-02 04:21:08,887 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 04:21:09,009 INFO L256 TraceCheckSpWp]: Trace formula consists of 9220 conjuncts, 15 conjunts are in the unsatisfiable core [2019-10-02 04:21:09,021 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 04:21:09,535 INFO L134 CoverageAnalysis]: Checked inductivity of 2543 backedges. 231 proven. 78 refuted. 0 times theorem prover too weak. 2234 trivial. 0 not checked. [2019-10-02 04:21:09,689 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 04:21:09,689 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2019-10-02 04:21:09,691 INFO L454 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-10-02 04:21:09,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-10-02 04:21:09,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=341, Invalid=529, Unknown=0, NotChecked=0, Total=870 [2019-10-02 04:21:09,692 INFO L87 Difference]: Start difference. First operand 4101 states and 5323 transitions. Second operand 30 states. [2019-10-02 04:21:09,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:21:09,905 INFO L93 Difference]: Finished difference Result 8203 states and 10663 transitions. [2019-10-02 04:21:09,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-02 04:21:09,906 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 970 [2019-10-02 04:21:09,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:21:09,916 INFO L225 Difference]: With dead ends: 8203 [2019-10-02 04:21:09,916 INFO L226 Difference]: Without dead ends: 4105 [2019-10-02 04:21:09,924 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 986 GetRequests, 957 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 367 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=358, Invalid=572, Unknown=0, NotChecked=0, Total=930 [2019-10-02 04:21:09,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4105 states. [2019-10-02 04:21:10,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4105 to 4105. [2019-10-02 04:21:10,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4105 states. [2019-10-02 04:21:10,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4105 states to 4105 states and 5327 transitions. [2019-10-02 04:21:10,041 INFO L78 Accepts]: Start accepts. Automaton has 4105 states and 5327 transitions. Word has length 970 [2019-10-02 04:21:10,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:21:10,042 INFO L475 AbstractCegarLoop]: Abstraction has 4105 states and 5327 transitions. [2019-10-02 04:21:10,043 INFO L476 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-10-02 04:21:10,043 INFO L276 IsEmpty]: Start isEmpty. Operand 4105 states and 5327 transitions. [2019-10-02 04:21:10,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 973 [2019-10-02 04:21:10,054 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:21:10,055 INFO L411 BasicCegarLoop]: trace histogram [26, 14, 14, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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, 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, 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] [2019-10-02 04:21:10,055 INFO L418 AbstractCegarLoop]: === Iteration 31 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:21:10,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:21:10,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1837434749, now seen corresponding path program 7 times [2019-10-02 04:21:10,056 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:21:10,056 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:21:10,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:21:10,062 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 04:21:10,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:21:12,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:21:12,935 INFO L134 CoverageAnalysis]: Checked inductivity of 2596 backedges. 212 proven. 91 refuted. 0 times theorem prover too weak. 2293 trivial. 0 not checked. [2019-10-02 04:21:12,935 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 04:21:12,935 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 04:21:13,200 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:21:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:21:14,794 INFO L256 TraceCheckSpWp]: Trace formula consists of 9232 conjuncts, 16 conjunts are in the unsatisfiable core [2019-10-02 04:21:14,806 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 04:21:15,420 INFO L134 CoverageAnalysis]: Checked inductivity of 2596 backedges. 1490 proven. 91 refuted. 0 times theorem prover too weak. 1015 trivial. 0 not checked. [2019-10-02 04:21:15,440 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 04:21:15,441 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2019-10-02 04:21:15,442 INFO L454 AbstractCegarLoop]: Interpolant automaton has 32 states [2019-10-02 04:21:15,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2019-10-02 04:21:15,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=388, Invalid=604, Unknown=0, NotChecked=0, Total=992 [2019-10-02 04:21:15,443 INFO L87 Difference]: Start difference. First operand 4105 states and 5327 transitions. Second operand 32 states. [2019-10-02 04:21:15,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:21:15,611 INFO L93 Difference]: Finished difference Result 8211 states and 10671 transitions. [2019-10-02 04:21:15,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-02 04:21:15,612 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 972 [2019-10-02 04:21:15,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:21:15,621 INFO L225 Difference]: With dead ends: 8211 [2019-10-02 04:21:15,621 INFO L226 Difference]: Without dead ends: 4109 [2019-10-02 04:21:15,628 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 989 GetRequests, 958 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=406, Invalid=650, Unknown=0, NotChecked=0, Total=1056 [2019-10-02 04:21:15,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4109 states. [2019-10-02 04:21:15,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4109 to 4109. [2019-10-02 04:21:15,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4109 states. [2019-10-02 04:21:15,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4109 states to 4109 states and 5331 transitions. [2019-10-02 04:21:15,733 INFO L78 Accepts]: Start accepts. Automaton has 4109 states and 5331 transitions. Word has length 972 [2019-10-02 04:21:15,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:21:15,734 INFO L475 AbstractCegarLoop]: Abstraction has 4109 states and 5331 transitions. [2019-10-02 04:21:15,734 INFO L476 AbstractCegarLoop]: Interpolant automaton has 32 states. [2019-10-02 04:21:15,734 INFO L276 IsEmpty]: Start isEmpty. Operand 4109 states and 5331 transitions. [2019-10-02 04:21:15,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 975 [2019-10-02 04:21:15,749 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:21:15,750 INFO L411 BasicCegarLoop]: trace histogram [28, 14, 14, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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, 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, 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] [2019-10-02 04:21:15,750 INFO L418 AbstractCegarLoop]: === Iteration 32 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:21:15,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:21:15,751 INFO L82 PathProgramCache]: Analyzing trace with hash -89920979, now seen corresponding path program 8 times [2019-10-02 04:21:15,751 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:21:15,751 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:21:15,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:21:15,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:21:15,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:21:17,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:21:17,951 INFO L134 CoverageAnalysis]: Checked inductivity of 2653 backedges. 241 proven. 105 refuted. 0 times theorem prover too weak. 2307 trivial. 0 not checked. [2019-10-02 04:21:17,951 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 04:21:17,951 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 04:21:18,211 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-10-02 04:21:31,816 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-02 04:21:31,816 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 04:21:31,870 INFO L256 TraceCheckSpWp]: Trace formula consists of 9244 conjuncts, 17 conjunts are in the unsatisfiable core [2019-10-02 04:21:31,883 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 04:21:32,968 INFO L134 CoverageAnalysis]: Checked inductivity of 2653 backedges. 1519 proven. 105 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2019-10-02 04:21:32,999 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 04:21:32,999 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2019-10-02 04:21:33,000 INFO L454 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-10-02 04:21:33,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-10-02 04:21:33,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=438, Invalid=684, Unknown=0, NotChecked=0, Total=1122 [2019-10-02 04:21:33,001 INFO L87 Difference]: Start difference. First operand 4109 states and 5331 transitions. Second operand 34 states. [2019-10-02 04:21:33,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:21:33,152 INFO L93 Difference]: Finished difference Result 8219 states and 10679 transitions. [2019-10-02 04:21:33,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-02 04:21:33,152 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 974 [2019-10-02 04:21:33,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:21:33,162 INFO L225 Difference]: With dead ends: 8219 [2019-10-02 04:21:33,162 INFO L226 Difference]: Without dead ends: 4113 [2019-10-02 04:21:33,171 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 992 GetRequests, 959 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=457, Invalid=733, Unknown=0, NotChecked=0, Total=1190 [2019-10-02 04:21:33,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4113 states. [2019-10-02 04:21:33,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4113 to 4113. [2019-10-02 04:21:33,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4113 states. [2019-10-02 04:21:33,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4113 states to 4113 states and 5335 transitions. [2019-10-02 04:21:33,369 INFO L78 Accepts]: Start accepts. Automaton has 4113 states and 5335 transitions. Word has length 974 [2019-10-02 04:21:33,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:21:33,369 INFO L475 AbstractCegarLoop]: Abstraction has 4113 states and 5335 transitions. [2019-10-02 04:21:33,369 INFO L476 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-10-02 04:21:33,369 INFO L276 IsEmpty]: Start isEmpty. Operand 4113 states and 5335 transitions. [2019-10-02 04:21:33,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 977 [2019-10-02 04:21:33,381 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:21:33,381 INFO L411 BasicCegarLoop]: trace histogram [30, 14, 14, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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, 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, 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] [2019-10-02 04:21:33,382 INFO L418 AbstractCegarLoop]: === Iteration 33 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:21:33,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:21:33,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1247225917, now seen corresponding path program 9 times [2019-10-02 04:21:33,382 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:21:33,382 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:21:33,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:21:33,387 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 04:21:33,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:21:36,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:21:37,662 INFO L134 CoverageAnalysis]: Checked inductivity of 2714 backedges. 100 proven. 378 refuted. 0 times theorem prover too weak. 2236 trivial. 0 not checked. [2019-10-02 04:21:37,662 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 04:21:37,662 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 04:21:37,921 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-10-02 04:23:15,982 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2019-10-02 04:23:15,982 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 04:23:16,153 INFO L256 TraceCheckSpWp]: Trace formula consists of 9250 conjuncts, 18 conjunts are in the unsatisfiable core [2019-10-02 04:23:16,168 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 04:23:16,725 INFO L134 CoverageAnalysis]: Checked inductivity of 2714 backedges. 318 proven. 120 refuted. 0 times theorem prover too weak. 2276 trivial. 0 not checked. [2019-10-02 04:23:16,856 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 04:23:16,856 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 36 [2019-10-02 04:23:16,857 INFO L454 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-10-02 04:23:16,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-10-02 04:23:16,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=491, Invalid=769, Unknown=0, NotChecked=0, Total=1260 [2019-10-02 04:23:16,859 INFO L87 Difference]: Start difference. First operand 4113 states and 5335 transitions. Second operand 36 states. [2019-10-02 04:23:17,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:23:17,071 INFO L93 Difference]: Finished difference Result 8227 states and 10687 transitions. [2019-10-02 04:23:17,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-02 04:23:17,072 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 976 [2019-10-02 04:23:17,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:23:17,083 INFO L225 Difference]: With dead ends: 8227 [2019-10-02 04:23:17,084 INFO L226 Difference]: Without dead ends: 4117 [2019-10-02 04:23:17,092 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 995 GetRequests, 960 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 550 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=511, Invalid=821, Unknown=0, NotChecked=0, Total=1332 [2019-10-02 04:23:17,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4117 states. [2019-10-02 04:23:17,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4117 to 4117. [2019-10-02 04:23:17,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4117 states. [2019-10-02 04:23:17,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4117 states to 4117 states and 5339 transitions. [2019-10-02 04:23:17,194 INFO L78 Accepts]: Start accepts. Automaton has 4117 states and 5339 transitions. Word has length 976 [2019-10-02 04:23:17,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:23:17,195 INFO L475 AbstractCegarLoop]: Abstraction has 4117 states and 5339 transitions. [2019-10-02 04:23:17,195 INFO L476 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-10-02 04:23:17,195 INFO L276 IsEmpty]: Start isEmpty. Operand 4117 states and 5339 transitions. [2019-10-02 04:23:17,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 979 [2019-10-02 04:23:17,209 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:23:17,210 INFO L411 BasicCegarLoop]: trace histogram [32, 14, 14, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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, 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, 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] [2019-10-02 04:23:17,210 INFO L418 AbstractCegarLoop]: === Iteration 34 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:23:17,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:23:17,211 INFO L82 PathProgramCache]: Analyzing trace with hash 873383661, now seen corresponding path program 10 times [2019-10-02 04:23:17,211 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:23:17,211 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:23:17,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:23:17,218 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 04:23:17,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:23:18,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:23:19,204 INFO L134 CoverageAnalysis]: Checked inductivity of 2779 backedges. 305 proven. 136 refuted. 0 times theorem prover too weak. 2338 trivial. 0 not checked. [2019-10-02 04:23:19,205 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 04:23:19,205 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 04:23:19,476 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-10-02 04:23:21,398 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-10-02 04:23:21,398 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 04:23:21,449 INFO L256 TraceCheckSpWp]: Trace formula consists of 9268 conjuncts, 19 conjunts are in the unsatisfiable core [2019-10-02 04:23:21,463 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 04:23:22,170 INFO L134 CoverageAnalysis]: Checked inductivity of 2779 backedges. 351 proven. 136 refuted. 0 times theorem prover too weak. 2292 trivial. 0 not checked. [2019-10-02 04:23:22,197 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 04:23:22,197 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 38 [2019-10-02 04:23:22,198 INFO L454 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-10-02 04:23:22,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-10-02 04:23:22,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=547, Invalid=859, Unknown=0, NotChecked=0, Total=1406 [2019-10-02 04:23:22,199 INFO L87 Difference]: Start difference. First operand 4117 states and 5339 transitions. Second operand 38 states. [2019-10-02 04:23:22,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:23:22,400 INFO L93 Difference]: Finished difference Result 8235 states and 10695 transitions. [2019-10-02 04:23:22,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-02 04:23:22,401 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 978 [2019-10-02 04:23:22,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:23:22,411 INFO L225 Difference]: With dead ends: 8235 [2019-10-02 04:23:22,411 INFO L226 Difference]: Without dead ends: 4121 [2019-10-02 04:23:22,418 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 998 GetRequests, 961 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 619 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=568, Invalid=914, Unknown=0, NotChecked=0, Total=1482 [2019-10-02 04:23:22,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4121 states. [2019-10-02 04:23:22,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4121 to 4121. [2019-10-02 04:23:22,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4121 states. [2019-10-02 04:23:22,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4121 states to 4121 states and 5343 transitions. [2019-10-02 04:23:22,512 INFO L78 Accepts]: Start accepts. Automaton has 4121 states and 5343 transitions. Word has length 978 [2019-10-02 04:23:22,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:23:22,513 INFO L475 AbstractCegarLoop]: Abstraction has 4121 states and 5343 transitions. [2019-10-02 04:23:22,514 INFO L476 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-10-02 04:23:22,514 INFO L276 IsEmpty]: Start isEmpty. Operand 4121 states and 5343 transitions. [2019-10-02 04:23:22,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 981 [2019-10-02 04:23:22,531 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:23:22,532 INFO L411 BasicCegarLoop]: trace histogram [34, 14, 14, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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, 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, 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] [2019-10-02 04:23:22,532 INFO L418 AbstractCegarLoop]: === Iteration 35 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:23:22,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:23:22,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1553032963, now seen corresponding path program 11 times [2019-10-02 04:23:22,533 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:23:22,533 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:23:22,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:23:22,538 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 04:23:22,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:23:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:23:25,561 INFO L134 CoverageAnalysis]: Checked inductivity of 2848 backedges. 340 proven. 153 refuted. 0 times theorem prover too weak. 2355 trivial. 0 not checked. [2019-10-02 04:23:25,562 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 04:23:25,562 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 04:23:25,832 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-10-02 04:24:29,458 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2019-10-02 04:24:29,458 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 04:24:29,531 INFO L256 TraceCheckSpWp]: Trace formula consists of 5937 conjuncts, 20 conjunts are in the unsatisfiable core [2019-10-02 04:24:29,544 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 04:24:30,172 INFO L134 CoverageAnalysis]: Checked inductivity of 2848 backedges. 1618 proven. 153 refuted. 0 times theorem prover too weak. 1077 trivial. 0 not checked. [2019-10-02 04:24:30,267 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 04:24:30,268 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 40 [2019-10-02 04:24:30,269 INFO L454 AbstractCegarLoop]: Interpolant automaton has 40 states [2019-10-02 04:24:30,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2019-10-02 04:24:30,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=606, Invalid=954, Unknown=0, NotChecked=0, Total=1560 [2019-10-02 04:24:30,270 INFO L87 Difference]: Start difference. First operand 4121 states and 5343 transitions. Second operand 40 states. [2019-10-02 04:24:30,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:24:30,545 INFO L93 Difference]: Finished difference Result 8243 states and 10703 transitions. [2019-10-02 04:24:30,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-02 04:24:30,545 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 980 [2019-10-02 04:24:30,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:24:30,560 INFO L225 Difference]: With dead ends: 8243 [2019-10-02 04:24:30,561 INFO L226 Difference]: Without dead ends: 4125 [2019-10-02 04:24:30,571 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 1001 GetRequests, 962 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 692 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=628, Invalid=1012, Unknown=0, NotChecked=0, Total=1640 [2019-10-02 04:24:30,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4125 states. [2019-10-02 04:24:30,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4125 to 4125. [2019-10-02 04:24:30,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4125 states. [2019-10-02 04:24:30,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4125 states to 4125 states and 5347 transitions. [2019-10-02 04:24:30,685 INFO L78 Accepts]: Start accepts. Automaton has 4125 states and 5347 transitions. Word has length 980 [2019-10-02 04:24:30,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:24:30,686 INFO L475 AbstractCegarLoop]: Abstraction has 4125 states and 5347 transitions. [2019-10-02 04:24:30,686 INFO L476 AbstractCegarLoop]: Interpolant automaton has 40 states. [2019-10-02 04:24:30,686 INFO L276 IsEmpty]: Start isEmpty. Operand 4125 states and 5347 transitions. [2019-10-02 04:24:30,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 983 [2019-10-02 04:24:30,705 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:24:30,706 INFO L411 BasicCegarLoop]: trace histogram [36, 14, 14, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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, 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, 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] [2019-10-02 04:24:30,706 INFO L418 AbstractCegarLoop]: === Iteration 36 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:24:30,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:24:30,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1049293741, now seen corresponding path program 12 times [2019-10-02 04:24:30,707 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:24:30,707 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:24:30,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:24:30,714 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 04:24:30,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:24:33,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:24:34,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2921 backedges. 100 proven. 534 refuted. 0 times theorem prover too weak. 2287 trivial. 0 not checked. [2019-10-02 04:24:34,374 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 04:24:34,374 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 04:24:34,643 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-10-02 04:26:37,167 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2019-10-02 04:26:37,167 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 04:26:37,313 INFO L256 TraceCheckSpWp]: Trace formula consists of 9292 conjuncts, 21 conjunts are in the unsatisfiable core [2019-10-02 04:26:37,327 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 04:26:38,139 INFO L134 CoverageAnalysis]: Checked inductivity of 2921 backedges. 423 proven. 171 refuted. 0 times theorem prover too weak. 2327 trivial. 0 not checked. [2019-10-02 04:26:38,275 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 04:26:38,276 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 42 [2019-10-02 04:26:38,277 INFO L454 AbstractCegarLoop]: Interpolant automaton has 42 states [2019-10-02 04:26:38,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2019-10-02 04:26:38,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=668, Invalid=1054, Unknown=0, NotChecked=0, Total=1722 [2019-10-02 04:26:38,278 INFO L87 Difference]: Start difference. First operand 4125 states and 5347 transitions. Second operand 42 states. [2019-10-02 04:26:38,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:26:38,491 INFO L93 Difference]: Finished difference Result 8251 states and 10711 transitions. [2019-10-02 04:26:38,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-02 04:26:38,491 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 982 [2019-10-02 04:26:38,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:26:38,501 INFO L225 Difference]: With dead ends: 8251 [2019-10-02 04:26:38,501 INFO L226 Difference]: Without dead ends: 4129 [2019-10-02 04:26:38,508 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 1004 GetRequests, 963 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 769 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=691, Invalid=1115, Unknown=0, NotChecked=0, Total=1806 [2019-10-02 04:26:38,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4129 states. [2019-10-02 04:26:38,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4129 to 4129. [2019-10-02 04:26:38,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4129 states. [2019-10-02 04:26:38,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4129 states to 4129 states and 5351 transitions. [2019-10-02 04:26:38,610 INFO L78 Accepts]: Start accepts. Automaton has 4129 states and 5351 transitions. Word has length 982 [2019-10-02 04:26:38,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:26:38,611 INFO L475 AbstractCegarLoop]: Abstraction has 4129 states and 5351 transitions. [2019-10-02 04:26:38,611 INFO L476 AbstractCegarLoop]: Interpolant automaton has 42 states. [2019-10-02 04:26:38,611 INFO L276 IsEmpty]: Start isEmpty. Operand 4129 states and 5351 transitions. [2019-10-02 04:26:38,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 985 [2019-10-02 04:26:38,624 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:26:38,624 INFO L411 BasicCegarLoop]: trace histogram [38, 14, 14, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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, 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, 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] [2019-10-02 04:26:38,625 INFO L418 AbstractCegarLoop]: === Iteration 37 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:26:38,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:26:38,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1400330685, now seen corresponding path program 13 times [2019-10-02 04:26:38,625 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:26:38,625 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:26:38,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:26:38,630 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 04:26:38,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:26:39,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:26:40,756 INFO L134 CoverageAnalysis]: Checked inductivity of 2998 backedges. 416 proven. 190 refuted. 0 times theorem prover too weak. 2392 trivial. 0 not checked. [2019-10-02 04:26:40,757 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 04:26:40,757 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 04:26:41,026 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:26:42,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:26:42,683 INFO L256 TraceCheckSpWp]: Trace formula consists of 9304 conjuncts, 22 conjunts are in the unsatisfiable core [2019-10-02 04:26:42,697 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 04:26:43,351 INFO L134 CoverageAnalysis]: Checked inductivity of 2998 backedges. 1694 proven. 190 refuted. 0 times theorem prover too weak. 1114 trivial. 0 not checked. [2019-10-02 04:26:43,371 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 04:26:43,371 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 44 [2019-10-02 04:26:43,373 INFO L454 AbstractCegarLoop]: Interpolant automaton has 44 states [2019-10-02 04:26:43,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2019-10-02 04:26:43,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=733, Invalid=1159, Unknown=0, NotChecked=0, Total=1892 [2019-10-02 04:26:43,374 INFO L87 Difference]: Start difference. First operand 4129 states and 5351 transitions. Second operand 44 states. [2019-10-02 04:26:43,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:26:43,571 INFO L93 Difference]: Finished difference Result 8259 states and 10719 transitions. [2019-10-02 04:26:43,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-02 04:26:43,571 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 984 [2019-10-02 04:26:43,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:26:43,580 INFO L225 Difference]: With dead ends: 8259 [2019-10-02 04:26:43,580 INFO L226 Difference]: Without dead ends: 4133 [2019-10-02 04:26:43,586 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 1007 GetRequests, 964 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 850 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=757, Invalid=1223, Unknown=0, NotChecked=0, Total=1980 [2019-10-02 04:26:43,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4133 states. [2019-10-02 04:26:43,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4133 to 4133. [2019-10-02 04:26:43,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4133 states. [2019-10-02 04:26:43,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4133 states to 4133 states and 5355 transitions. [2019-10-02 04:26:43,782 INFO L78 Accepts]: Start accepts. Automaton has 4133 states and 5355 transitions. Word has length 984 [2019-10-02 04:26:43,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:26:43,783 INFO L475 AbstractCegarLoop]: Abstraction has 4133 states and 5355 transitions. [2019-10-02 04:26:43,783 INFO L476 AbstractCegarLoop]: Interpolant automaton has 44 states. [2019-10-02 04:26:43,783 INFO L276 IsEmpty]: Start isEmpty. Operand 4133 states and 5355 transitions. [2019-10-02 04:26:43,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 987 [2019-10-02 04:26:43,796 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:26:43,796 INFO L411 BasicCegarLoop]: trace histogram [40, 14, 14, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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, 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, 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] [2019-10-02 04:26:43,796 INFO L418 AbstractCegarLoop]: === Iteration 38 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:26:43,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:26:43,797 INFO L82 PathProgramCache]: Analyzing trace with hash -196841363, now seen corresponding path program 14 times [2019-10-02 04:26:43,797 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:26:43,797 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:26:43,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:26:43,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 04:26:43,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:26:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:26:46,459 INFO L134 CoverageAnalysis]: Checked inductivity of 3079 backedges. 457 proven. 210 refuted. 0 times theorem prover too weak. 2412 trivial. 0 not checked. [2019-10-02 04:26:46,460 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 04:26:46,460 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 04:26:46,729 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-10-02 04:27:00,443 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-02 04:27:00,444 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 04:27:00,503 INFO L256 TraceCheckSpWp]: Trace formula consists of 9316 conjuncts, 23 conjunts are in the unsatisfiable core [2019-10-02 04:27:00,514 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 04:27:01,185 INFO L134 CoverageAnalysis]: Checked inductivity of 3079 backedges. 1735 proven. 210 refuted. 0 times theorem prover too weak. 1134 trivial. 0 not checked. [2019-10-02 04:27:01,219 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 04:27:01,219 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 46 [2019-10-02 04:27:01,221 INFO L454 AbstractCegarLoop]: Interpolant automaton has 46 states [2019-10-02 04:27:01,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2019-10-02 04:27:01,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=801, Invalid=1269, Unknown=0, NotChecked=0, Total=2070 [2019-10-02 04:27:01,222 INFO L87 Difference]: Start difference. First operand 4133 states and 5355 transitions. Second operand 46 states. [2019-10-02 04:27:01,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 04:27:01,460 INFO L93 Difference]: Finished difference Result 8267 states and 10727 transitions. [2019-10-02 04:27:01,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-10-02 04:27:01,461 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 986 [2019-10-02 04:27:01,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 04:27:01,471 INFO L225 Difference]: With dead ends: 8267 [2019-10-02 04:27:01,471 INFO L226 Difference]: Without dead ends: 4137 [2019-10-02 04:27:01,478 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 1010 GetRequests, 965 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 935 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=826, Invalid=1336, Unknown=0, NotChecked=0, Total=2162 [2019-10-02 04:27:01,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4137 states. [2019-10-02 04:27:01,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4137 to 4137. [2019-10-02 04:27:01,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4137 states. [2019-10-02 04:27:01,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4137 states to 4137 states and 5359 transitions. [2019-10-02 04:27:01,570 INFO L78 Accepts]: Start accepts. Automaton has 4137 states and 5359 transitions. Word has length 986 [2019-10-02 04:27:01,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 04:27:01,571 INFO L475 AbstractCegarLoop]: Abstraction has 4137 states and 5359 transitions. [2019-10-02 04:27:01,571 INFO L476 AbstractCegarLoop]: Interpolant automaton has 46 states. [2019-10-02 04:27:01,571 INFO L276 IsEmpty]: Start isEmpty. Operand 4137 states and 5359 transitions. [2019-10-02 04:27:01,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 989 [2019-10-02 04:27:01,583 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 04:27:01,584 INFO L411 BasicCegarLoop]: trace histogram [42, 14, 14, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 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, 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, 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] [2019-10-02 04:27:01,584 INFO L418 AbstractCegarLoop]: === Iteration 39 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 04:27:01,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 04:27:01,585 INFO L82 PathProgramCache]: Analyzing trace with hash 635606403, now seen corresponding path program 15 times [2019-10-02 04:27:01,585 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 04:27:01,585 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 04:27:01,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:27:01,590 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 04:27:01,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 04:27:02,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 04:27:03,823 INFO L134 CoverageAnalysis]: Checked inductivity of 3164 backedges. 500 proven. 231 refuted. 0 times theorem prover too weak. 2433 trivial. 0 not checked. [2019-10-02 04:27:03,824 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 04:27:03,824 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 04:27:04,094 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2