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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--console--fbcon.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 19:37:33,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 19:37:33,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 19:37:33,482 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 19:37:33,482 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 19:37:33,483 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 19:37:33,485 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 19:37:33,486 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 19:37:33,488 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 19:37:33,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 19:37:33,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 19:37:33,491 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 19:37:33,491 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 19:37:33,492 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 19:37:33,493 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 19:37:33,494 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 19:37:33,495 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 19:37:33,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 19:37:33,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 19:37:33,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 19:37:33,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 19:37:33,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 19:37:33,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 19:37:33,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 19:37:33,507 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-08 19:37:33,507 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-08 19:37:33,507 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-08 19:37:33,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-08 19:37:33,508 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-08 19:37:33,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-08 19:37:33,510 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 19:37:33,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 19:37:33,511 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 19:37:33,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 19:37:33,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 19:37:33,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 19:37:33,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 19:37:33,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 19:37:33,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 19:37:33,515 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 19:37:33,516 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 19:37:33,517 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 [2019-09-08 19:37:33,538 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 19:37:33,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 19:37:33,539 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 19:37:33,539 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 19:37:33,540 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 19:37:33,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 19:37:33,540 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 19:37:33,540 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 19:37:33,540 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 19:37:33,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 19:37:33,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 19:37:33,541 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 19:37:33,541 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 19:37:33,541 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 19:37:33,542 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 19:37:33,542 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 19:37:33,542 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 19:37:33,542 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 19:37:33,542 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 19:37:33,543 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 19:37:33,543 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 19:37:33,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 19:37:33,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 19:37:33,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 19:37:33,544 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 19:37:33,544 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 19:37:33,544 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 19:37:33,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 19:37:33,544 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 19:37:33,582 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 19:37:33,597 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 19:37:33,602 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 19:37:33,604 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 19:37:33,604 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 19:37:33,605 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--console--fbcon.ko-entry_point.cil.out.i [2019-09-08 19:37:33,671 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ed5c5553/73f36ca205154fadaf24d39036cde0ae/FLAG471925d1a [2019-09-08 19:37:34,479 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 19:37:34,480 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--console--fbcon.ko-entry_point.cil.out.i [2019-09-08 19:37:34,527 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ed5c5553/73f36ca205154fadaf24d39036cde0ae/FLAG471925d1a [2019-09-08 19:37:34,986 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ed5c5553/73f36ca205154fadaf24d39036cde0ae [2019-09-08 19:37:34,998 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 19:37:34,999 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 19:37:35,001 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 19:37:35,001 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 19:37:35,004 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 19:37:35,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 07:37:34" (1/1) ... [2019-09-08 19:37:35,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b92989c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:37:35, skipping insertion in model container [2019-09-08 19:37:35,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 07:37:34" (1/1) ... [2019-09-08 19:37:35,016 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 19:37:35,203 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 19:37:37,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 19:37:37,792 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 19:37:38,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 19:37:38,928 INFO L192 MainTranslator]: Completed translation [2019-09-08 19:37:38,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:37:38 WrapperNode [2019-09-08 19:37:38,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 19:37:38,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 19:37:38,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 19:37:38,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 19:37:38,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:37:38" (1/1) ... [2019-09-08 19:37:38,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:37:38" (1/1) ... [2019-09-08 19:37:39,066 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:37:38" (1/1) ... [2019-09-08 19:37:39,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:37:38" (1/1) ... [2019-09-08 19:37:39,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:37:38" (1/1) ... [2019-09-08 19:37:39,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:37:38" (1/1) ... [2019-09-08 19:37:39,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:37:38" (1/1) ... [2019-09-08 19:37:39,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 19:37:39,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 19:37:39,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 19:37:39,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 19:37:39,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:37:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 19:37:39,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 19:37:39,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 19:37:39,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~TO~VOID [2019-09-08 19:37:39,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-09-08 19:37:39,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2019-09-08 19:37:39,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-08 19:37:39,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~X~int~TO~VOID [2019-09-08 19:37:39,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2019-09-08 19:37:39,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~X~int~X~int~TO~VOID [2019-09-08 19:37:39,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2019-09-08 19:37:39,559 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-09-08 19:37:39,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-08 19:37:39,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-09-08 19:37:39,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-09-08 19:37:39,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-09-08 19:37:39,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-09-08 19:37:39,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-08 19:37:39,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-09-08 19:37:39,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-08 19:37:39,565 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2019-09-08 19:37:39,565 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2019-09-08 19:37:39,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-09-08 19:37:39,565 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-09-08 19:37:39,565 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-09-08 19:37:39,565 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_fb_info [2019-09-08 19:37:39,565 INFO L138 BoogieDeclarations]: Found implementation of procedure vt_force_oops_output [2019-09-08 19:37:39,566 INFO L138 BoogieDeclarations]: Found implementation of procedure scr_memsetw [2019-09-08 19:37:39,566 INFO L138 BoogieDeclarations]: Found implementation of procedure scr_memcpyw [2019-09-08 19:37:39,566 INFO L138 BoogieDeclarations]: Found implementation of procedure mono_col [2019-09-08 19:37:39,566 INFO L138 BoogieDeclarations]: Found implementation of procedure real_y [2019-09-08 19:37:39,567 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_rotation [2019-09-08 19:37:39,567 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_rotate [2019-09-08 19:37:39,567 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_rotate_all [2019-09-08 19:37:39,567 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_get_rotate [2019-09-08 19:37:39,567 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_is_inactive [2019-09-08 19:37:39,567 INFO L138 BoogieDeclarations]: Found implementation of procedure get_color [2019-09-08 19:37:39,568 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_update_softback [2019-09-08 19:37:39,568 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_flashcursor [2019-09-08 19:37:39,568 INFO L138 BoogieDeclarations]: Found implementation of procedure cursor_timer_handler [2019-09-08 19:37:39,568 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_add_cursor_timer [2019-09-08 19:37:39,568 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_del_cursor_timer [2019-09-08 19:37:39,568 INFO L138 BoogieDeclarations]: Found implementation of procedure search_fb_in_map [2019-09-08 19:37:39,568 INFO L138 BoogieDeclarations]: Found implementation of procedure search_for_mapped_con [2019-09-08 19:37:39,569 INFO L138 BoogieDeclarations]: Found implementation of procedure do_fbcon_takeover [2019-09-08 19:37:39,569 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_prepare_logo [2019-09-08 19:37:39,569 INFO L138 BoogieDeclarations]: Found implementation of procedure set_blitting_type [2019-09-08 19:37:39,569 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_invalid_charcount [2019-09-08 19:37:39,570 INFO L138 BoogieDeclarations]: Found implementation of procedure con2fb_acquire_newinfo [2019-09-08 19:37:39,570 INFO L138 BoogieDeclarations]: Found implementation of procedure con2fb_release_oldinfo [2019-09-08 19:37:39,570 INFO L138 BoogieDeclarations]: Found implementation of procedure con2fb_init_display [2019-09-08 19:37:39,570 INFO L138 BoogieDeclarations]: Found implementation of procedure set_con2fb_map [2019-09-08 19:37:39,570 INFO L138 BoogieDeclarations]: Found implementation of procedure var_to_display [2019-09-08 19:37:39,570 INFO L138 BoogieDeclarations]: Found implementation of procedure display_to_var [2019-09-08 19:37:39,571 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_startup [2019-09-08 19:37:39,571 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_init [2019-09-08 19:37:39,571 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_free_font [2019-09-08 19:37:39,571 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_deinit [2019-09-08 19:37:39,572 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_clear [2019-09-08 19:37:39,572 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_putcs [2019-09-08 19:37:39,572 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_putc [2019-09-08 19:37:39,572 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_clear_margins [2019-09-08 19:37:39,572 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_cursor [2019-09-08 19:37:39,572 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_disp [2019-09-08 19:37:39,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ywrap_up [2019-09-08 19:37:39,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ywrap_down [2019-09-08 19:37:39,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ypan_up [2019-09-08 19:37:39,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ypan_up_redraw [2019-09-08 19:37:39,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ypan_down [2019-09-08 19:37:39,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ypan_down_redraw [2019-09-08 19:37:39,574 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_redraw_softback [2019-09-08 19:37:39,574 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_redraw_move [2019-09-08 19:37:39,574 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_redraw_blit [2019-09-08 19:37:39,574 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_redraw [2019-09-08 19:37:39,575 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_softback_note [2019-09-08 19:37:39,575 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_scroll [2019-09-08 19:37:39,575 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_bmove [2019-09-08 19:37:39,576 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_bmove_rec [2019-09-08 19:37:39,576 INFO L138 BoogieDeclarations]: Found implementation of procedure updatescrollmode [2019-09-08 19:37:39,576 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_resize [2019-09-08 19:37:39,576 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_switch [2019-09-08 19:37:39,576 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_generic_blank [2019-09-08 19:37:39,576 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_blank [2019-09-08 19:37:39,577 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_debug_enter [2019-09-08 19:37:39,577 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_debug_leave [2019-09-08 19:37:39,577 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_get_font [2019-09-08 19:37:39,577 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_do_set_font [2019-09-08 19:37:39,578 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_copy_font [2019-09-08 19:37:39,578 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_font [2019-09-08 19:37:39,579 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_def_font [2019-09-08 19:37:39,579 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_palette [2019-09-08 19:37:39,579 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_screen_pos [2019-09-08 19:37:39,579 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_getxy [2019-09-08 19:37:39,580 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_invert_region [2019-09-08 19:37:39,580 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_scrolldelta [2019-09-08 19:37:39,580 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_origin [2019-09-08 19:37:39,580 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_suspended [2019-09-08 19:37:39,580 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_resumed [2019-09-08 19:37:39,580 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_modechanged [2019-09-08 19:37:39,580 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_all_vcs [2019-09-08 19:37:39,581 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_mode_deleted [2019-09-08 19:37:39,581 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_unbind [2019-09-08 19:37:39,581 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_fb_unbind [2019-09-08 19:37:39,581 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_fb_unregistered [2019-09-08 19:37:39,581 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_remap_all [2019-09-08 19:37:39,581 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_select_primary [2019-09-08 19:37:39,581 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_fb_registered [2019-09-08 19:37:39,582 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_fb_blanked [2019-09-08 19:37:39,582 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_new_modelist [2019-09-08 19:37:39,582 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_get_requirement [2019-09-08 19:37:39,582 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_event_notify [2019-09-08 19:37:39,582 INFO L138 BoogieDeclarations]: Found implementation of procedure store_rotate [2019-09-08 19:37:39,582 INFO L138 BoogieDeclarations]: Found implementation of procedure store_rotate_all [2019-09-08 19:37:39,582 INFO L138 BoogieDeclarations]: Found implementation of procedure show_rotate [2019-09-08 19:37:39,583 INFO L138 BoogieDeclarations]: Found implementation of procedure show_cursor_blink [2019-09-08 19:37:39,583 INFO L138 BoogieDeclarations]: Found implementation of procedure store_cursor_blink [2019-09-08 19:37:39,583 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_init_device [2019-09-08 19:37:39,583 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_start [2019-09-08 19:37:39,583 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_exit [2019-09-08 19:37:39,584 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_console_init [2019-09-08 19:37:39,584 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_deinit_device [2019-09-08 19:37:39,584 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_console_exit [2019-09-08 19:37:39,584 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2019-09-08 19:37:39,584 INFO L138 BoogieDeclarations]: Found implementation of procedure invoke_work_1 [2019-09-08 19:37:39,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_consw_4 [2019-09-08 19:37:39,585 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2019-09-08 19:37:39,586 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_2 [2019-09-08 19:37:39,586 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2019-09-08 19:37:39,586 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2019-09-08 19:37:39,586 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2019-09-08 19:37:39,586 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2019-09-08 19:37:39,587 INFO L138 BoogieDeclarations]: Found implementation of procedure work_init_1 [2019-09-08 19:37:39,587 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2019-09-08 19:37:39,587 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 19:37:39,587 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-09-08 19:37:39,588 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-09-08 19:37:39,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_5 [2019-09-08 19:37:39,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_6 [2019-09-08 19:37:39,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_7 [2019-09-08 19:37:39,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_8 [2019-09-08 19:37:39,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_9 [2019-09-08 19:37:39,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2019-09-08 19:37:39,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-09-08 19:37:39,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_12 [2019-09-08 19:37:39,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_13 [2019-09-08 19:37:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_14 [2019-09-08 19:37:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_15 [2019-09-08 19:37:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_16 [2019-09-08 19:37:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_17 [2019-09-08 19:37:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_18 [2019-09-08 19:37:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_19 [2019-09-08 19:37:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_20 [2019-09-08 19:37:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_21 [2019-09-08 19:37:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cancel_work_sync_22 [2019-09-08 19:37:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-08 19:37:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2019-09-08 19:37:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-09-08 19:37:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-09-08 19:37:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-09-08 19:37:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-09-08 19:37:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-09-08 19:37:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-09-08 19:37:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2019-09-08 19:37:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-09-08 19:37:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-09-08 19:37:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-09-08 19:37:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-09-08 19:37:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-09-08 19:37:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-09-08 19:37:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-09-08 19:37:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-09-08 19:37:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-09-08 19:37:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-09-08 19:37:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-09-08 19:37:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-09-08 19:37:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-09-08 19:37:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-09-08 19:37:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-09-08 19:37:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2019-09-08 19:37:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2019-09-08 19:37:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2019-09-08 19:37:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2019-09-08 19:37:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock_of_fb_info [2019-09-08 19:37:39,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock_of_fb_info [2019-09-08 19:37:39,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_fb_info [2019-09-08 19:37:39,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock_of_fb_info [2019-09-08 19:37:39,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock_of_fb_info [2019-09-08 19:37:39,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock_of_fb_info [2019-09-08 19:37:39,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_fb_info [2019-09-08 19:37:39,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock_of_fb_info [2019-09-08 19:37:39,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock_of_fb_info [2019-09-08 19:37:39,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock_of_fb_info [2019-09-08 19:37:39,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock_of_fb_info [2019-09-08 19:37:39,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-09-08 19:37:39,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-09-08 19:37:39,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-09-08 19:37:39,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-09-08 19:37:39,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-09-08 19:37:39,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-09-08 19:37:39,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-09-08 19:37:39,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2019-09-08 19:37:39,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2019-09-08 19:37:39,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-09-08 19:37:39,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2019-09-08 19:37:39,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_update_lock_of_backlight_device [2019-09-08 19:37:39,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_update_lock_of_backlight_device [2019-09-08 19:37:39,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_backlight_device [2019-09-08 19:37:39,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_update_lock_of_backlight_device [2019-09-08 19:37:39,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_update_lock_of_backlight_device [2019-09-08 19:37:39,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_update_lock_of_backlight_device [2019-09-08 19:37:39,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_backlight_device [2019-09-08 19:37:39,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_update_lock_of_backlight_device [2019-09-08 19:37:39,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_update_lock_of_backlight_device [2019-09-08 19:37:39,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_update_lock_of_backlight_device [2019-09-08 19:37:39,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_update_lock_of_backlight_device [2019-09-08 19:37:39,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-08 19:37:39,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2019-09-08 19:37:39,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __msecs_to_jiffies [2019-09-08 19:37:39,609 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2019-09-08 19:37:39,609 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2019-09-08 19:37:39,610 INFO L138 BoogieDeclarations]: Found implementation of procedure con_copy_unimap [2019-09-08 19:37:39,610 INFO L138 BoogieDeclarations]: Found implementation of procedure con_is_bound [2019-09-08 19:37:39,610 INFO L138 BoogieDeclarations]: Found implementation of procedure con_set_default_unimap [2019-09-08 19:37:39,610 INFO L138 BoogieDeclarations]: Found implementation of procedure console_conditional_schedule [2019-09-08 19:37:39,610 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2019-09-08 19:37:39,610 INFO L138 BoogieDeclarations]: Found implementation of procedure console_trylock [2019-09-08 19:37:39,610 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2019-09-08 19:37:39,611 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2019-09-08 19:37:39,611 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2019-09-08 19:37:39,611 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2019-09-08 19:37:39,611 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2019-09-08 19:37:39,611 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2019-09-08 19:37:39,611 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2019-09-08 19:37:39,611 INFO L138 BoogieDeclarations]: Found implementation of procedure do_blank_screen [2019-09-08 19:37:39,611 INFO L138 BoogieDeclarations]: Found implementation of procedure do_take_over_console [2019-09-08 19:37:39,612 INFO L138 BoogieDeclarations]: Found implementation of procedure do_unbind_con_driver [2019-09-08 19:37:39,612 INFO L138 BoogieDeclarations]: Found implementation of procedure do_unblank_screen [2019-09-08 19:37:39,612 INFO L138 BoogieDeclarations]: Found implementation of procedure do_unregister_con_driver [2019-09-08 19:37:39,612 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_blank [2019-09-08 19:37:39,612 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_copy_cmap [2019-09-08 19:37:39,612 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_default_cmap [2019-09-08 19:37:39,612 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_find_best_mode [2019-09-08 19:37:39,612 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_find_nearest_mode [2019-09-08 19:37:39,613 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_get_color_depth [2019-09-08 19:37:39,613 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_is_primary_device [2019-09-08 19:37:39,613 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_match_mode [2019-09-08 19:37:39,613 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_mode_is_equal [2019-09-08 19:37:39,613 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_notifier_call_chain [2019-09-08 19:37:39,613 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_register_client [2019-09-08 19:37:39,613 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_cmap [2019-09-08 19:37:39,613 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_var [2019-09-08 19:37:39,614 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_show_logo [2019-09-08 19:37:39,614 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_unregister_client [2019-09-08 19:37:39,614 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_videomode_to_var [2019-09-08 19:37:39,614 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_bitops [2019-09-08 19:37:39,615 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_tileops [2019-09-08 19:37:39,615 INFO L138 BoogieDeclarations]: Found implementation of procedure find_font [2019-09-08 19:37:39,615 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2019-09-08 19:37:39,615 INFO L138 BoogieDeclarations]: Found implementation of procedure get_default_font [2019-09-08 19:37:39,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-08 19:37:39,616 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_fb_info [2019-09-08 19:37:39,616 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2019-09-08 19:37:39,616 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2019-09-08 19:37:39,616 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2019-09-08 19:37:39,616 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-09-08 19:37:39,616 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-09-08 19:37:39,616 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-09-08 19:37:39,617 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-09-08 19:37:39,621 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2019-09-08 19:37:39,621 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2019-09-08 19:37:39,621 INFO L138 BoogieDeclarations]: Found implementation of procedure redraw_screen [2019-09-08 19:37:39,621 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2019-09-08 19:37:39,621 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2019-09-08 19:37:39,621 INFO L138 BoogieDeclarations]: Found implementation of procedure update_region [2019-09-08 19:37:39,621 INFO L138 BoogieDeclarations]: Found implementation of procedure vc_resize [2019-09-08 19:37:39,621 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-08 19:37:39,622 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-08 19:37:39,622 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-08 19:37:39,622 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-09-08 19:37:39,622 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-09-08 19:37:39,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 19:37:39,622 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-09-08 19:37:39,623 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2019-09-08 19:37:39,623 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-09-08 19:37:39,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-09-08 19:37:39,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-09-08 19:37:39,623 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-09-08 19:37:39,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-08 19:37:39,623 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-09-08 19:37:39,624 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-08 19:37:39,624 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2019-09-08 19:37:39,624 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-09-08 19:37:39,624 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-09-08 19:37:39,624 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2019-09-08 19:37:39,624 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-09-08 19:37:39,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_15 [2019-09-08 19:37:39,624 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-09-08 19:37:39,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-09-08 19:37:39,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_12 [2019-09-08 19:37:39,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_16 [2019-09-08 19:37:39,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_18 [2019-09-08 19:37:39,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_19 [2019-09-08 19:37:39,625 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-08 19:37:39,625 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-08 19:37:39,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-08 19:37:39,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-08 19:37:39,626 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-08 19:37:39,626 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-08 19:37:39,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-08 19:37:39,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-08 19:37:39,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-09-08 19:37:39,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-09-08 19:37:39,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-09-08 19:37:39,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-09-08 19:37:39,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-08 19:37:39,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-09-08 19:37:39,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-08 19:37:39,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-09-08 19:37:39,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-08 19:37:39,627 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-09-08 19:37:39,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2019-09-08 19:37:39,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_13 [2019-09-08 19:37:39,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_14 [2019-09-08 19:37:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_17 [2019-09-08 19:37:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2019-09-08 19:37:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-09-08 19:37:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-09-08 19:37:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-09-08 19:37:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_fb_info [2019-09-08 19:37:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-09-08 19:37:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-09-08 19:37:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-09-08 19:37:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_backlight_device [2019-09-08 19:37:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_backlight_device [2019-09-08 19:37:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure __msecs_to_jiffies [2019-09-08 19:37:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2019-09-08 19:37:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2019-09-08 19:37:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_20 [2019-09-08 19:37:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2019-09-08 19:37:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2019-09-08 19:37:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_21 [2019-09-08 19:37:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2019-09-08 19:37:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2019-09-08 19:37:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_5 [2019-09-08 19:37:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_7 [2019-09-08 19:37:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2019-09-08 19:37:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_6 [2019-09-08 19:37:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_9 [2019-09-08 19:37:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2019-09-08 19:37:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_8 [2019-09-08 19:37:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2019-09-08 19:37:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cancel_work_sync_22 [2019-09-08 19:37:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2019-09-08 19:37:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-08 19:37:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-09-08 19:37:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-09-08 19:37:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-09-08 19:37:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2019-09-08 19:37:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure invoke_work_1 [2019-09-08 19:37:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_consw_4 [2019-09-08 19:37:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2019-09-08 19:37:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_2 [2019-09-08 19:37:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2019-09-08 19:37:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2019-09-08 19:37:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2019-09-08 19:37:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2019-09-08 19:37:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure work_init_1 [2019-09-08 19:37:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2019-09-08 19:37:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2019-09-08 19:37:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2019-09-08 19:37:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure con_is_bound [2019-09-08 19:37:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure do_unregister_con_driver [2019-09-08 19:37:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure do_take_over_console [2019-09-08 19:37:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2019-09-08 19:37:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure console_trylock [2019-09-08 19:37:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2019-09-08 19:37:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure console_conditional_schedule [2019-09-08 19:37:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2019-09-08 19:37:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2019-09-08 19:37:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2019-09-08 19:37:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2019-09-08 19:37:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure fb_register_client [2019-09-08 19:37:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure fb_unregister_client [2019-09-08 19:37:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure fb_notifier_call_chain [2019-09-08 19:37:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_var [2019-09-08 19:37:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure fb_blank [2019-09-08 19:37:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure fb_show_logo [2019-09-08 19:37:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure fb_get_color_depth [2019-09-08 19:37:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure lock_fb_info [2019-09-08 19:37:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_fb_info [2019-09-08 19:37:39,636 INFO L130 BoogieDeclarations]: Found specification of procedure fb_videomode_to_var [2019-09-08 19:37:39,636 INFO L130 BoogieDeclarations]: Found specification of procedure fb_mode_is_equal [2019-09-08 19:37:39,636 INFO L130 BoogieDeclarations]: Found specification of procedure fb_match_mode [2019-09-08 19:37:39,636 INFO L130 BoogieDeclarations]: Found specification of procedure fb_find_best_mode [2019-09-08 19:37:39,636 INFO L130 BoogieDeclarations]: Found specification of procedure fb_find_nearest_mode [2019-09-08 19:37:39,636 INFO L130 BoogieDeclarations]: Found specification of procedure fb_copy_cmap [2019-09-08 19:37:39,636 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_cmap [2019-09-08 19:37:39,636 INFO L130 BoogieDeclarations]: Found specification of procedure fb_default_cmap [2019-09-08 19:37:39,637 INFO L130 BoogieDeclarations]: Found specification of procedure vc_resize [2019-09-08 19:37:39,637 INFO L130 BoogieDeclarations]: Found specification of procedure do_blank_screen [2019-09-08 19:37:39,637 INFO L130 BoogieDeclarations]: Found specification of procedure do_unblank_screen [2019-09-08 19:37:39,637 INFO L130 BoogieDeclarations]: Found specification of procedure update_region [2019-09-08 19:37:39,637 INFO L130 BoogieDeclarations]: Found specification of procedure redraw_screen [2019-09-08 19:37:39,637 INFO L130 BoogieDeclarations]: Found specification of procedure con_set_default_unimap [2019-09-08 19:37:39,637 INFO L130 BoogieDeclarations]: Found specification of procedure con_copy_unimap [2019-09-08 19:37:39,637 INFO L130 BoogieDeclarations]: Found specification of procedure do_unbind_con_driver [2019-09-08 19:37:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure vt_force_oops_output [2019-09-08 19:37:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 19:37:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure scr_memsetw [2019-09-08 19:37:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 19:37:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure scr_memcpyw [2019-09-08 19:37:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure find_font [2019-09-08 19:37:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure get_default_font [2019-09-08 19:37:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2019-09-08 19:37:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure fb_is_primary_device [2019-09-08 19:37:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure mono_col [2019-09-08 19:37:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_tileops [2019-09-08 19:37:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_bitops [2019-09-08 19:37:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure real_y [2019-09-08 19:37:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_origin [2019-09-08 19:37:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_startup [2019-09-08 19:37:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_init [2019-09-08 19:37:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_deinit [2019-09-08 19:37:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_clear [2019-09-08 19:37:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_putc [2019-09-08 19:37:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_putcs [2019-09-08 19:37:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_clear_margins [2019-09-08 19:37:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_cursor [2019-09-08 19:37:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_scroll [2019-09-08 19:37:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_bmove [2019-09-08 19:37:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_switch [2019-09-08 19:37:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_blank [2019-09-08 19:37:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_palette [2019-09-08 19:37:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_scrolldelta [2019-09-08 19:37:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure ywrap_up [2019-09-08 19:37:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure ywrap_down [2019-09-08 19:37:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure ypan_up [2019-09-08 19:37:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure ypan_down [2019-09-08 19:37:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_bmove_rec [2019-09-08 19:37:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_disp [2019-09-08 19:37:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_redraw_move [2019-09-08 19:37:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_modechanged [2019-09-08 19:37:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_all_vcs [2019-09-08 19:37:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_start [2019-09-08 19:37:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_exit [2019-09-08 19:37:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_rotation [2019-09-08 19:37:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-08 19:37:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_rotate [2019-09-08 19:37:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_rotate_all [2019-09-08 19:37:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_get_rotate [2019-09-08 19:37:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_is_inactive [2019-09-08 19:37:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure get_color [2019-09-08 19:37:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_update_softback [2019-09-08 19:37:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure fb_flashcursor [2019-09-08 19:37:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~TO~VOID [2019-09-08 19:37:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure cursor_timer_handler [2019-09-08 19:37:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_add_cursor_timer [2019-09-08 19:37:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 19:37:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 19:37:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_del_cursor_timer [2019-09-08 19:37:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure search_fb_in_map [2019-09-08 19:37:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure search_for_mapped_con [2019-09-08 19:37:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure do_fbcon_takeover [2019-09-08 19:37:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_prepare_logo [2019-09-08 19:37:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure set_blitting_type [2019-09-08 19:37:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_invalid_charcount [2019-09-08 19:37:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-09-08 19:37:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure con2fb_acquire_newinfo [2019-09-08 19:37:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2019-09-08 19:37:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure con2fb_release_oldinfo [2019-09-08 19:37:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure con2fb_init_display [2019-09-08 19:37:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure set_con2fb_map [2019-09-08 19:37:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure var_to_display [2019-09-08 19:37:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure display_to_var [2019-09-08 19:37:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-08 19:37:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_free_font [2019-09-08 19:37:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~X~int~TO~VOID [2019-09-08 19:37:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2019-09-08 19:37:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~X~int~X~int~TO~VOID [2019-09-08 19:37:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure ypan_up_redraw [2019-09-08 19:37:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure ypan_down_redraw [2019-09-08 19:37:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_redraw_softback [2019-09-08 19:37:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_redraw_blit [2019-09-08 19:37:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_redraw [2019-09-08 19:37:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_softback_note [2019-09-08 19:37:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure updatescrollmode [2019-09-08 19:37:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_resize [2019-09-08 19:37:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_generic_blank [2019-09-08 19:37:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_debug_enter [2019-09-08 19:37:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_debug_leave [2019-09-08 19:37:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_get_font [2019-09-08 19:37:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-09-08 19:37:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_do_set_font [2019-09-08 19:37:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_copy_font [2019-09-08 19:37:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_font [2019-09-08 19:37:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_def_font [2019-09-08 19:37:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_screen_pos [2019-09-08 19:37:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_getxy [2019-09-08 19:37:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_invert_region [2019-09-08 19:37:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_suspended [2019-09-08 19:37:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_resumed [2019-09-08 19:37:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_mode_deleted [2019-09-08 19:37:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_unbind [2019-09-08 19:37:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_fb_unbind [2019-09-08 19:37:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_fb_unregistered [2019-09-08 19:37:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_remap_all [2019-09-08 19:37:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_select_primary [2019-09-08 19:37:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_fb_registered [2019-09-08 19:37:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_fb_blanked [2019-09-08 19:37:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_new_modelist [2019-09-08 19:37:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_get_requirement [2019-09-08 19:37:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_event_notify [2019-09-08 19:37:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure store_rotate [2019-09-08 19:37:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure store_rotate_all [2019-09-08 19:37:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure show_rotate [2019-09-08 19:37:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure show_cursor_blink [2019-09-08 19:37:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure store_cursor_blink [2019-09-08 19:37:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_init_device [2019-09-08 19:37:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure fb_console_init [2019-09-08 19:37:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_deinit_device [2019-09-08 19:37:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure fb_console_exit [2019-09-08 19:37:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-08 19:37:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-08 19:37:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2019-09-08 19:37:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 19:37:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-08 19:37:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2019-09-08 19:37:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-09-08 19:37:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-09-08 19:37:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-09-08 19:37:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-09-08 19:37:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-09-08 19:37:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-09-08 19:37:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-09-08 19:37:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-09-08 19:37:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-09-08 19:37:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-09-08 19:37:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-09-08 19:37:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-09-08 19:37:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-09-08 19:37:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-09-08 19:37:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-09-08 19:37:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-09-08 19:37:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2019-09-08 19:37:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2019-09-08 19:37:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2019-09-08 19:37:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2019-09-08 19:37:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock_of_fb_info [2019-09-08 19:37:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock_of_fb_info [2019-09-08 19:37:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_fb_info [2019-09-08 19:37:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock_of_fb_info [2019-09-08 19:37:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock_of_fb_info [2019-09-08 19:37:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock_of_fb_info [2019-09-08 19:37:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock_of_fb_info [2019-09-08 19:37:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock_of_fb_info [2019-09-08 19:37:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock_of_fb_info [2019-09-08 19:37:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock_of_fb_info [2019-09-08 19:37:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-09-08 19:37:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-09-08 19:37:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-09-08 19:37:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-09-08 19:37:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2019-09-08 19:37:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2019-09-08 19:37:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-09-08 19:37:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2019-09-08 19:37:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_update_lock_of_backlight_device [2019-09-08 19:37:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_update_lock_of_backlight_device [2019-09-08 19:37:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_update_lock_of_backlight_device [2019-09-08 19:37:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_update_lock_of_backlight_device [2019-09-08 19:37:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_update_lock_of_backlight_device [2019-09-08 19:37:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_update_lock_of_backlight_device [2019-09-08 19:37:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_update_lock_of_backlight_device [2019-09-08 19:37:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_update_lock_of_backlight_device [2019-09-08 19:37:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_update_lock_of_backlight_device [2019-09-08 19:37:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-08 19:37:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-08 19:37:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-08 19:37:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-08 19:37:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 19:37:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-08 19:37:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-08 19:37:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 19:37:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-09-08 19:37:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-09-08 19:37:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-09-08 19:37:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-09-08 19:37:44,092 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-08 19:38:10,680 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 19:38:10,680 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-08 19:38:10,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 07:38:10 BoogieIcfgContainer [2019-09-08 19:38:10,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 19:38:10,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 19:38:10,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 19:38:10,687 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 19:38:10,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 07:37:34" (1/3) ... [2019-09-08 19:38:10,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a389f25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 07:38:10, skipping insertion in model container [2019-09-08 19:38:10,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:37:38" (2/3) ... [2019-09-08 19:38:10,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a389f25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 07:38:10, skipping insertion in model container [2019-09-08 19:38:10,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 07:38:10" (3/3) ... [2019-09-08 19:38:10,694 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--video--console--fbcon.ko-entry_point.cil.out.i [2019-09-08 19:38:10,704 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 19:38:10,722 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 19:38:10,739 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 19:38:10,792 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 19:38:10,793 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 19:38:10,793 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 19:38:10,793 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 19:38:10,793 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 19:38:10,793 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 19:38:10,793 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 19:38:10,793 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 19:38:10,793 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 19:38:10,871 INFO L276 IsEmpty]: Start isEmpty. Operand 2841 states. [2019-09-08 19:38:10,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2019-09-08 19:38:10,921 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:38:10,923 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 19:38:10,925 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:38:10,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:38:10,933 INFO L82 PathProgramCache]: Analyzing trace with hash -91357309, now seen corresponding path program 1 times [2019-09-08 19:38:10,935 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:38:10,936 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:38:11,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:38:11,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:38:11,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:38:11,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:38:12,216 INFO L134 CoverageAnalysis]: Checked inductivity of 5273 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5273 trivial. 0 not checked. [2019-09-08 19:38:12,218 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 19:38:12,219 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 19:38:12,225 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 19:38:12,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 19:38:12,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 19:38:12,242 INFO L87 Difference]: Start difference. First operand 2841 states. Second operand 3 states. [2019-09-08 19:38:12,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:38:12,669 INFO L93 Difference]: Finished difference Result 6973 states and 9932 transitions. [2019-09-08 19:38:12,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 19:38:12,670 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 513 [2019-09-08 19:38:12,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:38:12,756 INFO L225 Difference]: With dead ends: 6973 [2019-09-08 19:38:12,756 INFO L226 Difference]: Without dead ends: 4620 [2019-09-08 19:38:12,779 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 19:38:12,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4620 states. [2019-09-08 19:38:13,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4620 to 4617. [2019-09-08 19:38:13,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4617 states. [2019-09-08 19:38:13,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4617 states to 4617 states and 6565 transitions. [2019-09-08 19:38:13,132 INFO L78 Accepts]: Start accepts. Automaton has 4617 states and 6565 transitions. Word has length 513 [2019-09-08 19:38:13,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:38:13,134 INFO L475 AbstractCegarLoop]: Abstraction has 4617 states and 6565 transitions. [2019-09-08 19:38:13,134 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 19:38:13,134 INFO L276 IsEmpty]: Start isEmpty. Operand 4617 states and 6565 transitions. [2019-09-08 19:38:13,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2019-09-08 19:38:13,154 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:38:13,155 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 19:38:13,155 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:38:13,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:38:13,156 INFO L82 PathProgramCache]: Analyzing trace with hash -119933531, now seen corresponding path program 1 times [2019-09-08 19:38:13,156 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:38:13,156 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:38:13,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:38:13,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:38:13,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:38:13,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:38:13,906 INFO L134 CoverageAnalysis]: Checked inductivity of 5273 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5273 trivial. 0 not checked. [2019-09-08 19:38:13,906 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 19:38:13,906 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 19:38:13,910 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 19:38:13,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 19:38:13,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 19:38:13,911 INFO L87 Difference]: Start difference. First operand 4617 states and 6565 transitions. Second operand 3 states. [2019-09-08 19:38:14,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:38:14,187 INFO L93 Difference]: Finished difference Result 9133 states and 12989 transitions. [2019-09-08 19:38:14,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 19:38:14,188 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 525 [2019-09-08 19:38:14,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:38:14,226 INFO L225 Difference]: With dead ends: 9133 [2019-09-08 19:38:14,227 INFO L226 Difference]: Without dead ends: 4619 [2019-09-08 19:38:14,251 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 19:38:14,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4619 states. [2019-09-08 19:38:14,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4619 to 4618. [2019-09-08 19:38:14,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4618 states. [2019-09-08 19:38:14,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4618 states to 4618 states and 6566 transitions. [2019-09-08 19:38:14,458 INFO L78 Accepts]: Start accepts. Automaton has 4618 states and 6566 transitions. Word has length 525 [2019-09-08 19:38:14,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:38:14,463 INFO L475 AbstractCegarLoop]: Abstraction has 4618 states and 6566 transitions. [2019-09-08 19:38:14,463 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 19:38:14,463 INFO L276 IsEmpty]: Start isEmpty. Operand 4618 states and 6566 transitions. [2019-09-08 19:38:14,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2019-09-08 19:38:14,488 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:38:14,488 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 19:38:14,489 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:38:14,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:38:14,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1442500759, now seen corresponding path program 1 times [2019-09-08 19:38:14,489 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:38:14,490 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:38:14,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:38:14,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:38:14,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:38:14,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:38:15,116 INFO L134 CoverageAnalysis]: Checked inductivity of 5274 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5274 trivial. 0 not checked. [2019-09-08 19:38:15,117 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 19:38:15,117 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 19:38:15,118 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 19:38:15,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 19:38:15,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 19:38:15,119 INFO L87 Difference]: Start difference. First operand 4618 states and 6566 transitions. Second operand 5 states. [2019-09-08 19:38:15,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:38:15,364 INFO L93 Difference]: Finished difference Result 9132 states and 12985 transitions. [2019-09-08 19:38:15,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 19:38:15,364 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 527 [2019-09-08 19:38:15,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:38:15,399 INFO L225 Difference]: With dead ends: 9132 [2019-09-08 19:38:15,399 INFO L226 Difference]: Without dead ends: 4617 [2019-09-08 19:38:15,420 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-09-08 19:38:15,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4617 states. [2019-09-08 19:38:15,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4617 to 4617. [2019-09-08 19:38:15,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4617 states. [2019-09-08 19:38:15,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4617 states to 4617 states and 6562 transitions. [2019-09-08 19:38:15,715 INFO L78 Accepts]: Start accepts. Automaton has 4617 states and 6562 transitions. Word has length 527 [2019-09-08 19:38:15,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:38:15,717 INFO L475 AbstractCegarLoop]: Abstraction has 4617 states and 6562 transitions. [2019-09-08 19:38:15,717 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 19:38:15,718 INFO L276 IsEmpty]: Start isEmpty. Operand 4617 states and 6562 transitions. [2019-09-08 19:38:15,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2019-09-08 19:38:15,749 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:38:15,749 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 8, 8, 8, 8, 8, 8, 8, 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] [2019-09-08 19:38:15,750 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:38:15,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:38:15,750 INFO L82 PathProgramCache]: Analyzing trace with hash 574725871, now seen corresponding path program 1 times [2019-09-08 19:38:15,751 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:38:15,751 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:38:15,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:38:15,755 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:38:15,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:38:15,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:38:16,255 INFO L134 CoverageAnalysis]: Checked inductivity of 5281 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5281 trivial. 0 not checked. [2019-09-08 19:38:16,256 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 19:38:16,256 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 19:38:16,257 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 19:38:16,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 19:38:16,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 19:38:16,258 INFO L87 Difference]: Start difference. First operand 4617 states and 6562 transitions. Second operand 3 states. [2019-09-08 19:38:16,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:38:16,623 INFO L93 Difference]: Finished difference Result 9749 states and 13702 transitions. [2019-09-08 19:38:16,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 19:38:16,623 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 555 [2019-09-08 19:38:16,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:38:16,663 INFO L225 Difference]: With dead ends: 9749 [2019-09-08 19:38:16,664 INFO L226 Difference]: Without dead ends: 5235 [2019-09-08 19:38:16,694 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 19:38:16,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5235 states. [2019-09-08 19:38:16,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5235 to 5219. [2019-09-08 19:38:16,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5219 states. [2019-09-08 19:38:16,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 7264 transitions. [2019-09-08 19:38:16,958 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 7264 transitions. Word has length 555 [2019-09-08 19:38:16,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:38:16,960 INFO L475 AbstractCegarLoop]: Abstraction has 5219 states and 7264 transitions. [2019-09-08 19:38:16,960 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 19:38:16,960 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 7264 transitions. [2019-09-08 19:38:16,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2019-09-08 19:38:16,997 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:38:16,999 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 10, 10, 10, 10, 10, 10, 10, 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] [2019-09-08 19:38:16,999 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:38:16,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:38:17,000 INFO L82 PathProgramCache]: Analyzing trace with hash 813364502, now seen corresponding path program 1 times [2019-09-08 19:38:17,000 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:38:17,000 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:38:17,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:38:17,005 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:38:17,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:38:17,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:38:17,725 INFO L134 CoverageAnalysis]: Checked inductivity of 5420 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 5414 trivial. 0 not checked. [2019-09-08 19:38:17,726 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 19:38:17,726 INFO L223 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 [2019-09-08 19:38:17,755 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:38:18,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:38:18,483 INFO L256 TraceCheckSpWp]: Trace formula consists of 4650 conjuncts, 3 conjunts are in the unsatisfiable core [2019-09-08 19:38:18,517 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 19:38:18,923 INFO L134 CoverageAnalysis]: Checked inductivity of 5420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5420 trivial. 0 not checked. [2019-09-08 19:38:18,932 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 19:38:18,932 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2019-09-08 19:38:18,934 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 19:38:18,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 19:38:18,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-09-08 19:38:18,936 INFO L87 Difference]: Start difference. First operand 5219 states and 7264 transitions. Second operand 8 states. [2019-09-08 19:40:14,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:40:14,181 INFO L93 Difference]: Finished difference Result 11995 states and 16677 transitions. [2019-09-08 19:40:14,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-09-08 19:40:14,182 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 592 [2019-09-08 19:40:14,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:40:14,251 INFO L225 Difference]: With dead ends: 11995 [2019-09-08 19:40:14,252 INFO L226 Difference]: Without dead ends: 10539 [2019-09-08 19:40:14,263 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 616 GetRequests, 600 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2019-09-08 19:40:14,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10539 states. [2019-09-08 19:40:14,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10539 to 10343. [2019-09-08 19:40:14,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10343 states. [2019-09-08 19:40:14,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10343 states to 10343 states and 14373 transitions. [2019-09-08 19:40:14,746 INFO L78 Accepts]: Start accepts. Automaton has 10343 states and 14373 transitions. Word has length 592 [2019-09-08 19:40:14,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:40:14,748 INFO L475 AbstractCegarLoop]: Abstraction has 10343 states and 14373 transitions. [2019-09-08 19:40:14,748 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 19:40:14,748 INFO L276 IsEmpty]: Start isEmpty. Operand 10343 states and 14373 transitions. [2019-09-08 19:40:14,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2019-09-08 19:40:14,779 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:40:14,780 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 10, 10, 10, 10, 10, 10, 10, 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] [2019-09-08 19:40:14,780 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:40:14,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:40:14,781 INFO L82 PathProgramCache]: Analyzing trace with hash -150872089, now seen corresponding path program 1 times [2019-09-08 19:40:14,781 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:40:14,781 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:40:14,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:40:14,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:40:14,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:40:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:40:15,522 INFO L134 CoverageAnalysis]: Checked inductivity of 5420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5420 trivial. 0 not checked. [2019-09-08 19:40:15,523 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 19:40:15,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 19:40:15,524 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 19:40:15,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 19:40:15,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 19:40:15,525 INFO L87 Difference]: Start difference. First operand 10343 states and 14373 transitions. Second operand 5 states. [2019-09-08 19:41:17,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:41:17,768 INFO L93 Difference]: Finished difference Result 28320 states and 39533 transitions. [2019-09-08 19:41:17,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 19:41:17,769 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 594 [2019-09-08 19:41:17,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:41:17,874 INFO L225 Difference]: With dead ends: 28320 [2019-09-08 19:41:17,874 INFO L226 Difference]: Without dead ends: 18088 [2019-09-08 19:41:17,916 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-09-08 19:41:17,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18088 states. [2019-09-08 19:41:18,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18088 to 17554. [2019-09-08 19:41:18,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17554 states. [2019-09-08 19:41:18,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17554 states to 17554 states and 24460 transitions. [2019-09-08 19:41:18,827 INFO L78 Accepts]: Start accepts. Automaton has 17554 states and 24460 transitions. Word has length 594 [2019-09-08 19:41:18,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:41:18,828 INFO L475 AbstractCegarLoop]: Abstraction has 17554 states and 24460 transitions. [2019-09-08 19:41:18,828 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 19:41:18,828 INFO L276 IsEmpty]: Start isEmpty. Operand 17554 states and 24460 transitions. [2019-09-08 19:41:18,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 601 [2019-09-08 19:41:18,855 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:41:18,855 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 10, 10, 10, 10, 10, 10, 10, 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] [2019-09-08 19:41:18,856 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:41:18,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:41:18,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1741314669, now seen corresponding path program 1 times [2019-09-08 19:41:18,857 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:41:18,857 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:41:18,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:41:18,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:41:18,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:41:18,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:41:19,339 INFO L134 CoverageAnalysis]: Checked inductivity of 5420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5420 trivial. 0 not checked. [2019-09-08 19:41:19,339 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 19:41:19,340 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 19:41:19,340 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 19:41:19,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 19:41:19,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 19:41:19,341 INFO L87 Difference]: Start difference. First operand 17554 states and 24460 transitions. Second operand 3 states. [2019-09-08 19:41:19,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:41:19,710 INFO L93 Difference]: Finished difference Result 33856 states and 47241 transitions. [2019-09-08 19:41:19,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 19:41:19,710 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 600 [2019-09-08 19:41:19,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:41:19,802 INFO L225 Difference]: With dead ends: 33856 [2019-09-08 19:41:19,802 INFO L226 Difference]: Without dead ends: 17699 [2019-09-08 19:41:19,854 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 19:41:19,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17699 states. [2019-09-08 19:41:20,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17699 to 17559. [2019-09-08 19:41:20,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17559 states. [2019-09-08 19:41:20,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17559 states to 17559 states and 24465 transitions. [2019-09-08 19:41:20,633 INFO L78 Accepts]: Start accepts. Automaton has 17559 states and 24465 transitions. Word has length 600 [2019-09-08 19:41:20,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:41:20,635 INFO L475 AbstractCegarLoop]: Abstraction has 17559 states and 24465 transitions. [2019-09-08 19:41:20,635 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 19:41:20,635 INFO L276 IsEmpty]: Start isEmpty. Operand 17559 states and 24465 transitions. [2019-09-08 19:41:20,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 605 [2019-09-08 19:41:20,690 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:41:20,691 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 10, 10, 10, 10, 10, 10, 10, 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] [2019-09-08 19:41:20,692 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:41:20,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:41:20,693 INFO L82 PathProgramCache]: Analyzing trace with hash 572633786, now seen corresponding path program 1 times [2019-09-08 19:41:20,693 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:41:20,693 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:41:20,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:41:20,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:41:20,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:41:20,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:41:22,523 INFO L134 CoverageAnalysis]: Checked inductivity of 5421 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5421 trivial. 0 not checked. [2019-09-08 19:41:22,523 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 19:41:22,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 19:41:22,525 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 19:41:22,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 19:41:22,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 19:41:22,525 INFO L87 Difference]: Start difference. First operand 17559 states and 24465 transitions. Second operand 3 states. [2019-09-08 19:41:22,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:41:22,854 INFO L93 Difference]: Finished difference Result 17561 states and 24466 transitions. [2019-09-08 19:41:22,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 19:41:22,855 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 604 [2019-09-08 19:41:22,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:41:22,924 INFO L225 Difference]: With dead ends: 17561 [2019-09-08 19:41:22,925 INFO L226 Difference]: Without dead ends: 17558 [2019-09-08 19:41:22,935 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 19:41:22,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17558 states. [2019-09-08 19:41:23,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17558 to 17558. [2019-09-08 19:41:23,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17558 states. [2019-09-08 19:41:23,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17558 states to 17558 states and 24463 transitions. [2019-09-08 19:41:23,517 INFO L78 Accepts]: Start accepts. Automaton has 17558 states and 24463 transitions. Word has length 604 [2019-09-08 19:41:23,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:41:23,518 INFO L475 AbstractCegarLoop]: Abstraction has 17558 states and 24463 transitions. [2019-09-08 19:41:23,518 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 19:41:23,518 INFO L276 IsEmpty]: Start isEmpty. Operand 17558 states and 24463 transitions. [2019-09-08 19:41:23,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2019-09-08 19:41:23,551 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:41:23,552 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 10, 10, 10, 10, 10, 10, 10, 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] [2019-09-08 19:41:23,552 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:41:23,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:41:23,553 INFO L82 PathProgramCache]: Analyzing trace with hash 252987612, now seen corresponding path program 1 times [2019-09-08 19:41:23,553 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:41:23,553 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:41:23,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:41:23,557 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:41:23,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:41:23,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:41:24,391 INFO L134 CoverageAnalysis]: Checked inductivity of 5421 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5421 trivial. 0 not checked. [2019-09-08 19:41:24,392 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 19:41:24,392 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 19:41:24,393 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 19:41:24,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 19:41:24,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 19:41:24,394 INFO L87 Difference]: Start difference. First operand 17558 states and 24463 transitions. Second operand 5 states. [2019-09-08 19:42:19,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:42:19,279 INFO L93 Difference]: Finished difference Result 19657 states and 27381 transitions. [2019-09-08 19:42:19,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 19:42:19,279 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 607 [2019-09-08 19:42:19,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:42:19,346 INFO L225 Difference]: With dead ends: 19657 [2019-09-08 19:42:19,346 INFO L226 Difference]: Without dead ends: 18135 [2019-09-08 19:42:19,359 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-08 19:42:19,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18135 states. [2019-09-08 19:42:19,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18135 to 16982. [2019-09-08 19:42:19,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16982 states. [2019-09-08 19:42:19,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16982 states to 16982 states and 23649 transitions. [2019-09-08 19:42:19,926 INFO L78 Accepts]: Start accepts. Automaton has 16982 states and 23649 transitions. Word has length 607 [2019-09-08 19:42:19,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:42:19,927 INFO L475 AbstractCegarLoop]: Abstraction has 16982 states and 23649 transitions. [2019-09-08 19:42:19,927 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 19:42:19,927 INFO L276 IsEmpty]: Start isEmpty. Operand 16982 states and 23649 transitions. [2019-09-08 19:42:19,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2019-09-08 19:42:19,953 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:42:19,954 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 10, 10, 10, 10, 10, 10, 10, 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] [2019-09-08 19:42:19,954 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:42:19,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:42:19,954 INFO L82 PathProgramCache]: Analyzing trace with hash 570759041, now seen corresponding path program 1 times [2019-09-08 19:42:19,954 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:42:19,954 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:42:19,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:19,957 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:42:19,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:42:20,778 INFO L134 CoverageAnalysis]: Checked inductivity of 5421 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5421 trivial. 0 not checked. [2019-09-08 19:42:20,779 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 19:42:20,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 19:42:20,780 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 19:42:20,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 19:42:20,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 19:42:20,785 INFO L87 Difference]: Start difference. First operand 16982 states and 23649 transitions. Second operand 3 states. [2019-09-08 19:42:21,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:42:21,126 INFO L93 Difference]: Finished difference Result 32518 states and 45337 transitions. [2019-09-08 19:42:21,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 19:42:21,126 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 605 [2019-09-08 19:42:21,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:42:21,192 INFO L225 Difference]: With dead ends: 32518 [2019-09-08 19:42:21,193 INFO L226 Difference]: Without dead ends: 16933 [2019-09-08 19:42:21,232 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 19:42:21,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16933 states. [2019-09-08 19:42:21,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16933 to 16897. [2019-09-08 19:42:21,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16897 states. [2019-09-08 19:42:21,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16897 states to 16897 states and 23559 transitions. [2019-09-08 19:42:21,822 INFO L78 Accepts]: Start accepts. Automaton has 16897 states and 23559 transitions. Word has length 605 [2019-09-08 19:42:21,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:42:21,824 INFO L475 AbstractCegarLoop]: Abstraction has 16897 states and 23559 transitions. [2019-09-08 19:42:21,824 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 19:42:21,824 INFO L276 IsEmpty]: Start isEmpty. Operand 16897 states and 23559 transitions. [2019-09-08 19:42:21,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2019-09-08 19:42:21,845 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:42:21,846 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 10, 10, 10, 10, 10, 10, 10, 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] [2019-09-08 19:42:21,846 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:42:21,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:42:21,847 INFO L82 PathProgramCache]: Analyzing trace with hash 512646813, now seen corresponding path program 1 times [2019-09-08 19:42:21,847 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:42:21,847 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:42:21,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:21,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:42:21,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:42:22,498 INFO L134 CoverageAnalysis]: Checked inductivity of 5421 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5421 trivial. 0 not checked. [2019-09-08 19:42:22,499 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 19:42:22,499 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 19:42:22,500 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 19:42:22,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 19:42:22,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 19:42:22,500 INFO L87 Difference]: Start difference. First operand 16897 states and 23559 transitions. Second operand 3 states. [2019-09-08 19:42:23,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:42:23,044 INFO L93 Difference]: Finished difference Result 16899 states and 23560 transitions. [2019-09-08 19:42:23,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 19:42:23,045 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 606 [2019-09-08 19:42:23,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:42:23,122 INFO L225 Difference]: With dead ends: 16899 [2019-09-08 19:42:23,122 INFO L226 Difference]: Without dead ends: 16896 [2019-09-08 19:42:23,134 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 19:42:23,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16896 states. [2019-09-08 19:42:23,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16896 to 16896. [2019-09-08 19:42:23,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16896 states. [2019-09-08 19:42:23,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16896 states to 16896 states and 23557 transitions. [2019-09-08 19:42:23,696 INFO L78 Accepts]: Start accepts. Automaton has 16896 states and 23557 transitions. Word has length 606 [2019-09-08 19:42:23,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:42:23,697 INFO L475 AbstractCegarLoop]: Abstraction has 16896 states and 23557 transitions. [2019-09-08 19:42:23,697 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 19:42:23,697 INFO L276 IsEmpty]: Start isEmpty. Operand 16896 states and 23557 transitions. [2019-09-08 19:42:23,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2019-09-08 19:42:23,717 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:42:23,720 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 10, 10, 10, 10, 10, 10, 10, 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] [2019-09-08 19:42:23,720 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:42:23,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:42:23,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1288827388, now seen corresponding path program 1 times [2019-09-08 19:42:23,721 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:42:23,721 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:42:23,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:23,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:42:23,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:42:24,312 INFO L134 CoverageAnalysis]: Checked inductivity of 5421 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5421 trivial. 0 not checked. [2019-09-08 19:42:24,312 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 19:42:24,312 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 19:42:24,313 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 19:42:24,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 19:42:24,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 19:42:24,314 INFO L87 Difference]: Start difference. First operand 16896 states and 23557 transitions. Second operand 3 states. [2019-09-08 19:42:24,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:42:24,611 INFO L93 Difference]: Finished difference Result 16898 states and 23558 transitions. [2019-09-08 19:42:24,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 19:42:24,611 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 607 [2019-09-08 19:42:24,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:42:24,665 INFO L225 Difference]: With dead ends: 16898 [2019-09-08 19:42:24,665 INFO L226 Difference]: Without dead ends: 15934 [2019-09-08 19:42:24,682 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 19:42:24,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15934 states. [2019-09-08 19:42:25,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15934 to 15934. [2019-09-08 19:42:25,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15934 states. [2019-09-08 19:42:25,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15934 states to 15934 states and 22291 transitions. [2019-09-08 19:42:25,650 INFO L78 Accepts]: Start accepts. Automaton has 15934 states and 22291 transitions. Word has length 607 [2019-09-08 19:42:25,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:42:25,651 INFO L475 AbstractCegarLoop]: Abstraction has 15934 states and 22291 transitions. [2019-09-08 19:42:25,651 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 19:42:25,651 INFO L276 IsEmpty]: Start isEmpty. Operand 15934 states and 22291 transitions. [2019-09-08 19:42:25,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2019-09-08 19:42:25,680 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:42:25,681 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 19:42:25,681 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:42:25,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:42:25,682 INFO L82 PathProgramCache]: Analyzing trace with hash 4873543, now seen corresponding path program 1 times [2019-09-08 19:42:25,682 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:42:25,682 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:42:25,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:25,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:42:25,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:25,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:42:26,197 INFO L134 CoverageAnalysis]: Checked inductivity of 5420 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5416 trivial. 0 not checked. [2019-09-08 19:42:26,198 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 19:42:26,198 INFO L223 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 [2019-09-08 19:42:26,232 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:42:26,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:42:26,993 INFO L256 TraceCheckSpWp]: Trace formula consists of 4893 conjuncts, 2 conjunts are in the unsatisfiable core [2019-09-08 19:42:27,024 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 19:42:27,205 INFO L134 CoverageAnalysis]: Checked inductivity of 5420 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5415 trivial. 0 not checked. [2019-09-08 19:42:27,214 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 19:42:27,214 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 3 [2019-09-08 19:42:27,216 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 19:42:27,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 19:42:27,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 19:42:27,217 INFO L87 Difference]: Start difference. First operand 15934 states and 22291 transitions. Second operand 3 states. [2019-09-08 19:42:27,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:42:27,554 INFO L93 Difference]: Finished difference Result 31766 states and 45378 transitions. [2019-09-08 19:42:27,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 19:42:27,555 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 636 [2019-09-08 19:42:27,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:42:27,604 INFO L225 Difference]: With dead ends: 31766 [2019-09-08 19:42:27,604 INFO L226 Difference]: Without dead ends: 15943 [2019-09-08 19:42:27,662 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 638 GetRequests, 637 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 19:42:27,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15943 states. [2019-09-08 19:42:28,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15943 to 15943. [2019-09-08 19:42:28,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15943 states. [2019-09-08 19:42:28,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15943 states to 15943 states and 22300 transitions. [2019-09-08 19:42:28,425 INFO L78 Accepts]: Start accepts. Automaton has 15943 states and 22300 transitions. Word has length 636 [2019-09-08 19:42:28,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:42:28,426 INFO L475 AbstractCegarLoop]: Abstraction has 15943 states and 22300 transitions. [2019-09-08 19:42:28,426 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 19:42:28,426 INFO L276 IsEmpty]: Start isEmpty. Operand 15943 states and 22300 transitions. [2019-09-08 19:42:28,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 635 [2019-09-08 19:42:28,455 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:42:28,455 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 19:42:28,456 INFO L418 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:42:28,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:42:28,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1871976318, now seen corresponding path program 1 times [2019-09-08 19:42:28,456 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:42:28,457 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:42:28,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:28,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:42:28,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:42:28,950 INFO L134 CoverageAnalysis]: Checked inductivity of 5420 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 5414 trivial. 0 not checked. [2019-09-08 19:42:28,950 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 19:42:28,950 INFO L223 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 [2019-09-08 19:42:28,970 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:42:29,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:42:29,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 4879 conjuncts, 3 conjunts are in the unsatisfiable core [2019-09-08 19:42:29,674 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 19:42:30,003 INFO L134 CoverageAnalysis]: Checked inductivity of 5420 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5416 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (4)] Exception during sending of exit command (exit): Broken pipe [2019-09-08 19:42:30,025 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 19:42:30,026 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2019-09-08 19:42:30,027 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-08 19:42:30,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-08 19:42:30,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 19:42:30,028 INFO L87 Difference]: Start difference. First operand 15943 states and 22300 transitions. Second operand 4 states. [2019-09-08 19:42:30,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:42:30,775 INFO L93 Difference]: Finished difference Result 31802 states and 45414 transitions. [2019-09-08 19:42:30,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 19:42:30,776 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 634 [2019-09-08 19:42:30,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:42:30,914 INFO L225 Difference]: With dead ends: 31802 [2019-09-08 19:42:30,915 INFO L226 Difference]: Without dead ends: 15970 [2019-09-08 19:42:31,034 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 639 GetRequests, 636 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-08 19:42:31,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15970 states. [2019-09-08 19:42:31,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15970 to 15961. [2019-09-08 19:42:31,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15961 states. [2019-09-08 19:42:32,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15961 states to 15961 states and 22318 transitions. [2019-09-08 19:42:32,063 INFO L78 Accepts]: Start accepts. Automaton has 15961 states and 22318 transitions. Word has length 634 [2019-09-08 19:42:32,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:42:32,064 INFO L475 AbstractCegarLoop]: Abstraction has 15961 states and 22318 transitions. [2019-09-08 19:42:32,064 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-08 19:42:32,065 INFO L276 IsEmpty]: Start isEmpty. Operand 15961 states and 22318 transitions. [2019-09-08 19:42:32,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2019-09-08 19:42:32,095 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:42:32,095 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 19:42:32,096 INFO L418 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:42:32,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:42:32,096 INFO L82 PathProgramCache]: Analyzing trace with hash 5530823, now seen corresponding path program 1 times [2019-09-08 19:42:32,097 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:42:32,097 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:42:32,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:32,101 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:42:32,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:32,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:42:32,785 INFO L134 CoverageAnalysis]: Checked inductivity of 5420 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5417 trivial. 0 not checked. [2019-09-08 19:42:32,786 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 19:42:32,786 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 19:42:32,787 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 19:42:32,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 19:42:32,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-08 19:42:32,788 INFO L87 Difference]: Start difference. First operand 15961 states and 22318 transitions. Second operand 6 states. [2019-09-08 19:42:33,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:42:33,438 INFO L93 Difference]: Finished difference Result 31856 states and 45156 transitions. [2019-09-08 19:42:33,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 19:42:33,438 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 636 [2019-09-08 19:42:33,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:42:33,543 INFO L225 Difference]: With dead ends: 31856 [2019-09-08 19:42:33,543 INFO L226 Difference]: Without dead ends: 16006 [2019-09-08 19:42:33,596 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-08 19:42:33,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16006 states. [2019-09-08 19:42:34,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16006 to 16006. [2019-09-08 19:42:34,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16006 states. [2019-09-08 19:42:34,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16006 states to 16006 states and 22446 transitions. [2019-09-08 19:42:34,300 INFO L78 Accepts]: Start accepts. Automaton has 16006 states and 22446 transitions. Word has length 636 [2019-09-08 19:42:34,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:42:34,301 INFO L475 AbstractCegarLoop]: Abstraction has 16006 states and 22446 transitions. [2019-09-08 19:42:34,301 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 19:42:34,301 INFO L276 IsEmpty]: Start isEmpty. Operand 16006 states and 22446 transitions. [2019-09-08 19:42:34,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2019-09-08 19:42:34,331 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:42:34,332 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 19:42:34,332 INFO L418 AbstractCegarLoop]: === Iteration 16 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:42:34,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:42:34,333 INFO L82 PathProgramCache]: Analyzing trace with hash -838474679, now seen corresponding path program 1 times [2019-09-08 19:42:34,333 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:42:34,333 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:42:34,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:34,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:42:34,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:34,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:42:34,884 INFO L134 CoverageAnalysis]: Checked inductivity of 5420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5420 trivial. 0 not checked. [2019-09-08 19:42:34,885 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 19:42:34,885 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 19:42:34,886 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 19:42:34,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 19:42:34,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 19:42:34,887 INFO L87 Difference]: Start difference. First operand 16006 states and 22446 transitions. Second operand 5 states. [2019-09-08 19:42:35,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:42:35,585 INFO L93 Difference]: Finished difference Result 30754 states and 43197 transitions. [2019-09-08 19:42:35,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 19:42:35,585 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 636 [2019-09-08 19:42:35,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:42:35,659 INFO L225 Difference]: With dead ends: 30754 [2019-09-08 19:42:35,659 INFO L226 Difference]: Without dead ends: 16153 [2019-09-08 19:42:35,695 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-08 19:42:35,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16153 states. [2019-09-08 19:42:36,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16153 to 16102. [2019-09-08 19:42:36,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16102 states. [2019-09-08 19:42:36,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16102 states to 16102 states and 22590 transitions. [2019-09-08 19:42:36,277 INFO L78 Accepts]: Start accepts. Automaton has 16102 states and 22590 transitions. Word has length 636 [2019-09-08 19:42:36,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:42:36,279 INFO L475 AbstractCegarLoop]: Abstraction has 16102 states and 22590 transitions. [2019-09-08 19:42:36,279 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 19:42:36,279 INFO L276 IsEmpty]: Start isEmpty. Operand 16102 states and 22590 transitions. [2019-09-08 19:42:36,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2019-09-08 19:42:36,317 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:42:36,318 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 19:42:36,318 INFO L418 AbstractCegarLoop]: === Iteration 17 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:42:36,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:42:36,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1100687367, now seen corresponding path program 1 times [2019-09-08 19:42:36,319 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:42:36,319 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:42:36,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:36,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:42:36,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:42:36,905 INFO L134 CoverageAnalysis]: Checked inductivity of 5420 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 5417 trivial. 0 not checked. [2019-09-08 19:42:36,906 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 19:42:36,906 INFO L223 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 [2019-09-08 19:42:36,934 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:42:37,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:42:37,628 INFO L256 TraceCheckSpWp]: Trace formula consists of 4909 conjuncts, 3 conjunts are in the unsatisfiable core [2019-09-08 19:42:37,645 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 19:42:37,948 INFO L134 CoverageAnalysis]: Checked inductivity of 5420 backedges. 130 proven. 1 refuted. 0 times theorem prover too weak. 5289 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (5)] Exception during sending of exit command (exit): Broken pipe [2019-09-08 19:42:37,970 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 19:42:37,971 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2019-09-08 19:42:37,973 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 19:42:37,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 19:42:37,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-08 19:42:37,974 INFO L87 Difference]: Start difference. First operand 16102 states and 22590 transitions. Second operand 5 states. [2019-09-08 19:42:38,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:42:38,852 INFO L93 Difference]: Finished difference Result 30835 states and 43293 transitions. [2019-09-08 19:42:38,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-08 19:42:38,852 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 636 [2019-09-08 19:42:38,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:42:38,928 INFO L225 Difference]: With dead ends: 30835 [2019-09-08 19:42:38,928 INFO L226 Difference]: Without dead ends: 16138 [2019-09-08 19:42:38,967 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 639 GetRequests, 636 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-08 19:42:38,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16138 states. [2019-09-08 19:42:39,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16138 to 16126. [2019-09-08 19:42:39,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16126 states. [2019-09-08 19:42:39,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16126 states to 16126 states and 22614 transitions. [2019-09-08 19:42:39,427 INFO L78 Accepts]: Start accepts. Automaton has 16126 states and 22614 transitions. Word has length 636 [2019-09-08 19:42:39,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:42:39,428 INFO L475 AbstractCegarLoop]: Abstraction has 16126 states and 22614 transitions. [2019-09-08 19:42:39,428 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 19:42:39,428 INFO L276 IsEmpty]: Start isEmpty. Operand 16126 states and 22614 transitions. [2019-09-08 19:42:39,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 639 [2019-09-08 19:42:39,456 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:42:39,457 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 19:42:39,457 INFO L418 AbstractCegarLoop]: === Iteration 18 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:42:39,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:42:39,458 INFO L82 PathProgramCache]: Analyzing trace with hash -482144381, now seen corresponding path program 2 times [2019-09-08 19:42:39,458 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:42:39,458 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:42:39,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:39,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:42:39,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:39,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:42:40,026 INFO L134 CoverageAnalysis]: Checked inductivity of 5423 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 5417 trivial. 0 not checked. [2019-09-08 19:42:40,027 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 19:42:40,027 INFO L223 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 [2019-09-08 19:42:40,064 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-09-08 19:42:41,694 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-08 19:42:41,695 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 19:42:41,713 INFO L256 TraceCheckSpWp]: Trace formula consists of 4915 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-08 19:42:41,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 19:42:41,990 INFO L134 CoverageAnalysis]: Checked inductivity of 5423 backedges. 130 proven. 4 refuted. 0 times theorem prover too weak. 5289 trivial. 0 not checked. [2019-09-08 19:42:42,008 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 19:42:42,009 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-09-08 19:42:42,011 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 19:42:42,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 19:42:42,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-09-08 19:42:42,012 INFO L87 Difference]: Start difference. First operand 16126 states and 22614 transitions. Second operand 6 states. [2019-09-08 19:42:42,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:42:42,539 INFO L93 Difference]: Finished difference Result 30883 states and 43341 transitions. [2019-09-08 19:42:42,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 19:42:42,539 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 638 [2019-09-08 19:42:42,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:42:42,611 INFO L225 Difference]: With dead ends: 30883 [2019-09-08 19:42:42,612 INFO L226 Difference]: Without dead ends: 16162 [2019-09-08 19:42:42,650 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 642 GetRequests, 638 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-09-08 19:42:42,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16162 states. [2019-09-08 19:42:43,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16162 to 16150. [2019-09-08 19:42:43,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16150 states. [2019-09-08 19:42:43,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16150 states to 16150 states and 22638 transitions. [2019-09-08 19:42:43,445 INFO L78 Accepts]: Start accepts. Automaton has 16150 states and 22638 transitions. Word has length 638 [2019-09-08 19:42:43,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:42:43,446 INFO L475 AbstractCegarLoop]: Abstraction has 16150 states and 22638 transitions. [2019-09-08 19:42:43,446 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 19:42:43,446 INFO L276 IsEmpty]: Start isEmpty. Operand 16150 states and 22638 transitions. [2019-09-08 19:42:43,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 648 [2019-09-08 19:42:43,465 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:42:43,466 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 10, 10, 10, 10, 10, 10, 10, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 19:42:43,466 INFO L418 AbstractCegarLoop]: === Iteration 19 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:42:43,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:42:43,467 INFO L82 PathProgramCache]: Analyzing trace with hash 2061929635, now seen corresponding path program 1 times [2019-09-08 19:42:43,467 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:42:43,467 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:42:43,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:43,470 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 19:42:43,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:43,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:42:43,973 INFO L134 CoverageAnalysis]: Checked inductivity of 5428 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5425 trivial. 0 not checked. [2019-09-08 19:42:43,973 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 19:42:43,973 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 19:42:43,975 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 19:42:43,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 19:42:43,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 19:42:43,976 INFO L87 Difference]: Start difference. First operand 16150 states and 22638 transitions. Second operand 3 states. [2019-09-08 19:42:44,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:42:44,339 INFO L93 Difference]: Finished difference Result 32225 states and 46202 transitions. [2019-09-08 19:42:44,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 19:42:44,340 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 647 [2019-09-08 19:42:44,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:42:44,415 INFO L225 Difference]: With dead ends: 32225 [2019-09-08 19:42:44,415 INFO L226 Difference]: Without dead ends: 16186 [2019-09-08 19:42:44,467 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 19:42:44,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16186 states. [2019-09-08 19:42:44,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16186 to 16159. [2019-09-08 19:42:44,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16159 states. [2019-09-08 19:42:44,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16159 states to 16159 states and 22647 transitions. [2019-09-08 19:42:44,987 INFO L78 Accepts]: Start accepts. Automaton has 16159 states and 22647 transitions. Word has length 647 [2019-09-08 19:42:44,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:42:44,988 INFO L475 AbstractCegarLoop]: Abstraction has 16159 states and 22647 transitions. [2019-09-08 19:42:44,988 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 19:42:44,988 INFO L276 IsEmpty]: Start isEmpty. Operand 16159 states and 22647 transitions. [2019-09-08 19:42:45,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 639 [2019-09-08 19:42:45,011 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:42:45,012 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 10, 10, 10, 10, 10, 10, 10, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 19:42:45,012 INFO L418 AbstractCegarLoop]: === Iteration 20 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:42:45,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:42:45,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1159110150, now seen corresponding path program 1 times [2019-09-08 19:42:45,013 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:42:45,013 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:42:45,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:45,015 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:42:45,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:45,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:42:45,619 INFO L134 CoverageAnalysis]: Checked inductivity of 5428 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5417 trivial. 0 not checked. [2019-09-08 19:42:45,620 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 19:42:45,620 INFO L223 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) [2019-09-08 19:42:45,653 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 19:42:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:42:46,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 4901 conjuncts, 5 conjunts are in the unsatisfiable core [2019-09-08 19:42:46,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 19:42:46,851 INFO L134 CoverageAnalysis]: Checked inductivity of 5428 backedges. 130 proven. 9 refuted. 0 times theorem prover too weak. 5289 trivial. 0 not checked. [2019-09-08 19:42:46,859 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 19:42:46,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2019-09-08 19:42:46,860 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 19:42:46,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 19:42:46,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-09-08 19:42:46,861 INFO L87 Difference]: Start difference. First operand 16159 states and 22647 transitions. Second operand 7 states. [2019-09-08 19:42:47,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:42:47,275 INFO L93 Difference]: Finished difference Result 30948 states and 43406 transitions. [2019-09-08 19:42:47,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 19:42:47,275 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 638 [2019-09-08 19:42:47,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:42:47,344 INFO L225 Difference]: With dead ends: 30948 [2019-09-08 19:42:47,344 INFO L226 Difference]: Without dead ends: 16195 [2019-09-08 19:42:47,382 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 643 GetRequests, 638 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-09-08 19:42:47,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16195 states. [2019-09-08 19:42:47,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16195 to 16183. [2019-09-08 19:42:47,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16183 states. [2019-09-08 19:42:47,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16183 states to 16183 states and 22671 transitions. [2019-09-08 19:42:47,898 INFO L78 Accepts]: Start accepts. Automaton has 16183 states and 22671 transitions. Word has length 638 [2019-09-08 19:42:47,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:42:47,899 INFO L475 AbstractCegarLoop]: Abstraction has 16183 states and 22671 transitions. [2019-09-08 19:42:47,899 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 19:42:47,899 INFO L276 IsEmpty]: Start isEmpty. Operand 16183 states and 22671 transitions. [2019-09-08 19:42:47,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 650 [2019-09-08 19:42:47,920 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:42:47,921 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 10, 10, 10, 10, 10, 10, 10, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 19:42:47,921 INFO L418 AbstractCegarLoop]: === Iteration 21 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:42:47,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:42:47,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1108442985, now seen corresponding path program 1 times [2019-09-08 19:42:47,922 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:42:47,922 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:42:47,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:47,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:42:47,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:48,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:42:48,487 INFO L134 CoverageAnalysis]: Checked inductivity of 5435 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 5417 trivial. 0 not checked. [2019-09-08 19:42:48,488 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 19:42:48,488 INFO L223 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) [2019-09-08 19:42:48,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 19:42:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:42:49,245 INFO L256 TraceCheckSpWp]: Trace formula consists of 4926 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-08 19:42:49,256 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 19:42:49,441 INFO L134 CoverageAnalysis]: Checked inductivity of 5435 backedges. 130 proven. 16 refuted. 0 times theorem prover too weak. 5289 trivial. 0 not checked. [2019-09-08 19:42:49,449 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 19:42:49,450 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2019-09-08 19:42:49,451 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 19:42:49,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 19:42:49,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-09-08 19:42:49,452 INFO L87 Difference]: Start difference. First operand 16183 states and 22671 transitions. Second operand 8 states. [2019-09-08 19:42:49,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:42:49,958 INFO L93 Difference]: Finished difference Result 30996 states and 43454 transitions. [2019-09-08 19:42:49,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 19:42:49,959 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 649 [2019-09-08 19:42:49,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:42:50,028 INFO L225 Difference]: With dead ends: 30996 [2019-09-08 19:42:50,028 INFO L226 Difference]: Without dead ends: 16219 [2019-09-08 19:42:50,060 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 655 GetRequests, 649 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-09-08 19:42:50,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16219 states. [2019-09-08 19:42:50,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16219 to 16207. [2019-09-08 19:42:50,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16207 states. [2019-09-08 19:42:50,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16207 states to 16207 states and 22695 transitions. [2019-09-08 19:42:50,511 INFO L78 Accepts]: Start accepts. Automaton has 16207 states and 22695 transitions. Word has length 649 [2019-09-08 19:42:50,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:42:50,512 INFO L475 AbstractCegarLoop]: Abstraction has 16207 states and 22695 transitions. [2019-09-08 19:42:50,512 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 19:42:50,512 INFO L276 IsEmpty]: Start isEmpty. Operand 16207 states and 22695 transitions. [2019-09-08 19:42:50,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 654 [2019-09-08 19:42:50,535 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:42:50,535 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 10, 10, 10, 10, 10, 10, 10, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 19:42:50,536 INFO L418 AbstractCegarLoop]: === Iteration 22 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:42:50,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:42:50,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1370159800, now seen corresponding path program 1 times [2019-09-08 19:42:50,536 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:42:50,536 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:42:50,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:50,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:42:50,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:50,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:42:51,151 INFO L134 CoverageAnalysis]: Checked inductivity of 5444 backedges. 2 proven. 25 refuted. 0 times theorem prover too weak. 5417 trivial. 0 not checked. [2019-09-08 19:42:51,152 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 19:42:51,152 INFO L223 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) [2019-09-08 19:42:51,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 19:42:51,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:42:51,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 4952 conjuncts, 7 conjunts are in the unsatisfiable core [2019-09-08 19:42:51,912 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 19:42:52,090 INFO L134 CoverageAnalysis]: Checked inductivity of 5444 backedges. 130 proven. 25 refuted. 0 times theorem prover too weak. 5289 trivial. 0 not checked. [2019-09-08 19:42:52,099 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 19:42:52,099 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2019-09-08 19:42:52,100 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 19:42:52,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 19:42:52,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-09-08 19:42:52,100 INFO L87 Difference]: Start difference. First operand 16207 states and 22695 transitions. Second operand 9 states. [2019-09-08 19:42:52,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:42:52,490 INFO L93 Difference]: Finished difference Result 31044 states and 43502 transitions. [2019-09-08 19:42:52,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-08 19:42:52,491 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 653 [2019-09-08 19:42:52,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:42:52,543 INFO L225 Difference]: With dead ends: 31044 [2019-09-08 19:42:52,544 INFO L226 Difference]: Without dead ends: 16243 [2019-09-08 19:42:52,785 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 660 GetRequests, 653 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-09-08 19:42:52,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16243 states. [2019-09-08 19:42:53,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16243 to 16231. [2019-09-08 19:42:53,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16231 states. [2019-09-08 19:42:53,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16231 states to 16231 states and 22719 transitions. [2019-09-08 19:42:53,175 INFO L78 Accepts]: Start accepts. Automaton has 16231 states and 22719 transitions. Word has length 653 [2019-09-08 19:42:53,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:42:53,175 INFO L475 AbstractCegarLoop]: Abstraction has 16231 states and 22719 transitions. [2019-09-08 19:42:53,176 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 19:42:53,176 INFO L276 IsEmpty]: Start isEmpty. Operand 16231 states and 22719 transitions. [2019-09-08 19:42:53,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 656 [2019-09-08 19:42:53,195 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:42:53,196 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 10, 10, 10, 10, 10, 10, 10, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 19:42:53,196 INFO L418 AbstractCegarLoop]: === Iteration 23 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:42:53,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:42:53,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1992194740, now seen corresponding path program 2 times [2019-09-08 19:42:53,197 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:42:53,197 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:42:53,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:53,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:42:53,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:53,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:42:53,793 INFO L134 CoverageAnalysis]: Checked inductivity of 5455 backedges. 2 proven. 36 refuted. 0 times theorem prover too weak. 5417 trivial. 0 not checked. [2019-09-08 19:42:53,794 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 19:42:53,794 INFO L223 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) [2019-09-08 19:42:53,818 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 19:42:55,786 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-08 19:42:55,787 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 19:42:55,810 INFO L256 TraceCheckSpWp]: Trace formula consists of 4958 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-08 19:42:55,820 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 19:42:56,081 INFO L134 CoverageAnalysis]: Checked inductivity of 5455 backedges. 130 proven. 36 refuted. 0 times theorem prover too weak. 5289 trivial. 0 not checked. [2019-09-08 19:42:56,104 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 19:42:56,104 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2019-09-08 19:42:56,105 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-08 19:42:56,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-08 19:42:56,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-09-08 19:42:56,106 INFO L87 Difference]: Start difference. First operand 16231 states and 22719 transitions. Second operand 10 states. [2019-09-08 19:42:56,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:42:56,518 INFO L93 Difference]: Finished difference Result 31092 states and 43550 transitions. [2019-09-08 19:42:56,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-08 19:42:56,519 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 655 [2019-09-08 19:42:56,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:42:56,569 INFO L225 Difference]: With dead ends: 31092 [2019-09-08 19:42:56,569 INFO L226 Difference]: Without dead ends: 16267 [2019-09-08 19:42:56,597 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 663 GetRequests, 655 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-09-08 19:42:56,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16267 states. [2019-09-08 19:42:57,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16267 to 16255. [2019-09-08 19:42:57,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16255 states. [2019-09-08 19:42:57,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16255 states to 16255 states and 22743 transitions. [2019-09-08 19:42:57,237 INFO L78 Accepts]: Start accepts. Automaton has 16255 states and 22743 transitions. Word has length 655 [2019-09-08 19:42:57,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:42:57,238 INFO L475 AbstractCegarLoop]: Abstraction has 16255 states and 22743 transitions. [2019-09-08 19:42:57,238 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-08 19:42:57,238 INFO L276 IsEmpty]: Start isEmpty. Operand 16255 states and 22743 transitions. [2019-09-08 19:42:57,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 658 [2019-09-08 19:42:57,258 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:42:57,258 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 10, 10, 10, 10, 10, 10, 10, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 19:42:57,258 INFO L418 AbstractCegarLoop]: === Iteration 24 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:42:57,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:42:57,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1527649360, now seen corresponding path program 3 times [2019-09-08 19:42:57,259 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:42:57,259 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:42:57,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:57,261 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 19:42:57,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:42:57,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:42:57,842 INFO L134 CoverageAnalysis]: Checked inductivity of 5468 backedges. 2 proven. 49 refuted. 0 times theorem prover too weak. 5417 trivial. 0 not checked. [2019-09-08 19:42:57,842 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 19:42:57,843 INFO L223 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 [2019-09-08 19:42:57,869 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-08 19:43:04,704 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-09-08 19:43:04,704 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 19:43:04,732 INFO L256 TraceCheckSpWp]: Trace formula consists of 2622 conjuncts, 7 conjunts are in the unsatisfiable core [2019-09-08 19:43:04,745 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 19:43:04,813 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 19:43:05,012 INFO L134 CoverageAnalysis]: Checked inductivity of 5468 backedges. 359 proven. 0 refuted. 0 times theorem prover too weak. 5109 trivial. 0 not checked. [2019-09-08 19:43:05,026 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 19:43:05,026 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2019-09-08 19:43:05,027 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-08 19:43:05,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-08 19:43:05,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2019-09-08 19:43:05,028 INFO L87 Difference]: Start difference. First operand 16255 states and 22743 transitions. Second operand 14 states. [2019-09-08 19:43:08,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:43:08,563 INFO L93 Difference]: Finished difference Result 32542 states and 46152 transitions. [2019-09-08 19:43:08,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-08 19:43:08,564 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 657 [2019-09-08 19:43:08,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:43:08,686 INFO L225 Difference]: With dead ends: 32542 [2019-09-08 19:43:08,686 INFO L226 Difference]: Without dead ends: 16318 [2019-09-08 19:43:08,738 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 668 GetRequests, 654 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2019-09-08 19:43:08,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16318 states. [2019-09-08 19:43:09,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16318 to 16306. [2019-09-08 19:43:09,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16306 states. [2019-09-08 19:43:09,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16306 states to 16306 states and 22830 transitions. [2019-09-08 19:43:09,279 INFO L78 Accepts]: Start accepts. Automaton has 16306 states and 22830 transitions. Word has length 657 [2019-09-08 19:43:09,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:43:09,279 INFO L475 AbstractCegarLoop]: Abstraction has 16306 states and 22830 transitions. [2019-09-08 19:43:09,279 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-08 19:43:09,280 INFO L276 IsEmpty]: Start isEmpty. Operand 16306 states and 22830 transitions. [2019-09-08 19:43:09,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 685 [2019-09-08 19:43:09,307 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:43:09,308 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 34, 10, 10, 10, 10, 10, 10, 10, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 19:43:09,308 INFO L418 AbstractCegarLoop]: === Iteration 25 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:43:09,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:43:09,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1119979435, now seen corresponding path program 1 times [2019-09-08 19:43:09,308 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:43:09,309 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:43:09,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:43:09,311 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 19:43:09,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:43:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:43:10,135 INFO L134 CoverageAnalysis]: Checked inductivity of 7200 backedges. 2 proven. 64 refuted. 0 times theorem prover too weak. 7134 trivial. 0 not checked. [2019-09-08 19:43:10,136 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 19:43:10,136 INFO L223 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 [2019-09-08 19:43:10,156 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:43:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:43:10,953 INFO L256 TraceCheckSpWp]: Trace formula consists of 5155 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-08 19:43:10,962 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 19:43:11,254 INFO L134 CoverageAnalysis]: Checked inductivity of 7200 backedges. 130 proven. 64 refuted. 0 times theorem prover too weak. 7006 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (12)] Exception during sending of exit command (exit): Broken pipe [2019-09-08 19:43:11,265 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 19:43:11,266 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2019-09-08 19:43:11,267 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-08 19:43:11,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-08 19:43:11,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-09-08 19:43:11,268 INFO L87 Difference]: Start difference. First operand 16306 states and 22830 transitions. Second operand 12 states. [2019-09-08 19:43:11,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:43:11,665 INFO L93 Difference]: Finished difference Result 31239 states and 43765 transitions. [2019-09-08 19:43:11,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-08 19:43:11,666 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 684 [2019-09-08 19:43:11,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:43:11,740 INFO L225 Difference]: With dead ends: 31239 [2019-09-08 19:43:11,740 INFO L226 Difference]: Without dead ends: 16342 [2019-09-08 19:43:11,785 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 694 GetRequests, 684 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-09-08 19:43:11,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16342 states. [2019-09-08 19:43:12,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16342 to 16330. [2019-09-08 19:43:12,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16330 states. [2019-09-08 19:43:12,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16330 states to 16330 states and 22854 transitions. [2019-09-08 19:43:12,349 INFO L78 Accepts]: Start accepts. Automaton has 16330 states and 22854 transitions. Word has length 684 [2019-09-08 19:43:12,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:43:12,350 INFO L475 AbstractCegarLoop]: Abstraction has 16330 states and 22854 transitions. [2019-09-08 19:43:12,350 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-08 19:43:12,350 INFO L276 IsEmpty]: Start isEmpty. Operand 16330 states and 22854 transitions. [2019-09-08 19:43:12,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 687 [2019-09-08 19:43:12,380 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:43:12,381 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 34, 10, 10, 10, 10, 10, 10, 10, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 19:43:12,381 INFO L418 AbstractCegarLoop]: === Iteration 26 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:43:12,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:43:12,381 INFO L82 PathProgramCache]: Analyzing trace with hash 877663783, now seen corresponding path program 2 times [2019-09-08 19:43:12,382 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:43:12,382 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:43:12,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:43:12,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:43:12,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:43:12,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:43:14,201 INFO L134 CoverageAnalysis]: Checked inductivity of 7217 backedges. 2 proven. 81 refuted. 0 times theorem prover too weak. 7134 trivial. 0 not checked. [2019-09-08 19:43:14,201 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 19:43:14,201 INFO L223 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 [2019-09-08 19:43:14,218 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-09-08 19:43:16,266 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-08 19:43:16,266 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 19:43:16,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 5161 conjuncts, 11 conjunts are in the unsatisfiable core [2019-09-08 19:43:16,301 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 19:43:16,561 INFO L134 CoverageAnalysis]: Checked inductivity of 7217 backedges. 130 proven. 81 refuted. 0 times theorem prover too weak. 7006 trivial. 0 not checked. [2019-09-08 19:43:16,574 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 19:43:16,575 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2019-09-08 19:43:16,576 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-08 19:43:16,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-08 19:43:16,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2019-09-08 19:43:16,577 INFO L87 Difference]: Start difference. First operand 16330 states and 22854 transitions. Second operand 13 states. [2019-09-08 19:43:16,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:43:16,997 INFO L93 Difference]: Finished difference Result 31287 states and 43813 transitions. [2019-09-08 19:43:16,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-08 19:43:16,997 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 686 [2019-09-08 19:43:16,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:43:17,058 INFO L225 Difference]: With dead ends: 31287 [2019-09-08 19:43:17,058 INFO L226 Difference]: Without dead ends: 16366 [2019-09-08 19:43:17,097 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 697 GetRequests, 686 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2019-09-08 19:43:17,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16366 states. [2019-09-08 19:43:17,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16366 to 16354. [2019-09-08 19:43:17,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16354 states. [2019-09-08 19:43:17,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16354 states to 16354 states and 22878 transitions. [2019-09-08 19:43:17,587 INFO L78 Accepts]: Start accepts. Automaton has 16354 states and 22878 transitions. Word has length 686 [2019-09-08 19:43:17,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:43:17,588 INFO L475 AbstractCegarLoop]: Abstraction has 16354 states and 22878 transitions. [2019-09-08 19:43:17,589 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-08 19:43:17,589 INFO L276 IsEmpty]: Start isEmpty. Operand 16354 states and 22878 transitions. [2019-09-08 19:43:17,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 687 [2019-09-08 19:43:17,620 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:43:17,621 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 34, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 19:43:17,622 INFO L418 AbstractCegarLoop]: === Iteration 27 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:43:17,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:43:17,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1099084706, now seen corresponding path program 1 times [2019-09-08 19:43:17,622 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:43:17,623 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:43:17,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:43:17,627 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 19:43:17,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:43:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:43:18,339 INFO L134 CoverageAnalysis]: Checked inductivity of 7236 backedges. 2 proven. 100 refuted. 0 times theorem prover too weak. 7134 trivial. 0 not checked. [2019-09-08 19:43:18,339 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 19:43:18,339 INFO L223 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 [2019-09-08 19:43:18,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:43:19,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:43:19,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 5147 conjuncts, 12 conjunts are in the unsatisfiable core [2019-09-08 19:43:19,188 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 19:43:19,393 INFO L134 CoverageAnalysis]: Checked inductivity of 7236 backedges. 130 proven. 100 refuted. 0 times theorem prover too weak. 7006 trivial. 0 not checked. [2019-09-08 19:43:19,402 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 19:43:19,402 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2019-09-08 19:43:19,403 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-08 19:43:19,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-08 19:43:19,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2019-09-08 19:43:19,404 INFO L87 Difference]: Start difference. First operand 16354 states and 22878 transitions. Second operand 14 states. [2019-09-08 19:43:19,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:43:19,808 INFO L93 Difference]: Finished difference Result 31335 states and 43861 transitions. [2019-09-08 19:43:19,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-09-08 19:43:19,809 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 686 [2019-09-08 19:43:19,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:43:19,863 INFO L225 Difference]: With dead ends: 31335 [2019-09-08 19:43:19,863 INFO L226 Difference]: Without dead ends: 16390 [2019-09-08 19:43:19,894 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 698 GetRequests, 686 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2019-09-08 19:43:19,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16390 states. [2019-09-08 19:43:20,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16390 to 16378. [2019-09-08 19:43:20,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16378 states. [2019-09-08 19:43:20,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16378 states to 16378 states and 22902 transitions. [2019-09-08 19:43:20,304 INFO L78 Accepts]: Start accepts. Automaton has 16378 states and 22902 transitions. Word has length 686 [2019-09-08 19:43:20,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:43:20,305 INFO L475 AbstractCegarLoop]: Abstraction has 16378 states and 22902 transitions. [2019-09-08 19:43:20,306 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-08 19:43:20,306 INFO L276 IsEmpty]: Start isEmpty. Operand 16378 states and 22902 transitions. [2019-09-08 19:43:20,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 698 [2019-09-08 19:43:20,338 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:43:20,339 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 34, 11, 11, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 19:43:20,339 INFO L418 AbstractCegarLoop]: === Iteration 28 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:43:20,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:43:20,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1221857659, now seen corresponding path program 1 times [2019-09-08 19:43:20,340 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:43:20,340 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:43:20,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:43:20,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:43:20,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:43:20,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:43:21,068 INFO L134 CoverageAnalysis]: Checked inductivity of 7257 backedges. 2 proven. 121 refuted. 0 times theorem prover too weak. 7134 trivial. 0 not checked. [2019-09-08 19:43:21,068 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 19:43:21,069 INFO L223 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 [2019-09-08 19:43:21,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:43:22,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:43:22,081 INFO L256 TraceCheckSpWp]: Trace formula consists of 5172 conjuncts, 13 conjunts are in the unsatisfiable core [2019-09-08 19:43:22,091 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 19:43:22,352 INFO L134 CoverageAnalysis]: Checked inductivity of 7257 backedges. 130 proven. 121 refuted. 0 times theorem prover too weak. 7006 trivial. 0 not checked. [2019-09-08 19:43:22,362 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 19:43:22,362 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 15 [2019-09-08 19:43:22,363 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-09-08 19:43:22,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-09-08 19:43:22,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2019-09-08 19:43:22,363 INFO L87 Difference]: Start difference. First operand 16378 states and 22902 transitions. Second operand 15 states. [2019-09-08 19:43:22,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:43:22,778 INFO L93 Difference]: Finished difference Result 31383 states and 43909 transitions. [2019-09-08 19:43:22,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-08 19:43:22,778 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 697 [2019-09-08 19:43:22,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:43:22,829 INFO L225 Difference]: With dead ends: 31383 [2019-09-08 19:43:22,829 INFO L226 Difference]: Without dead ends: 16414 [2019-09-08 19:43:22,858 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 710 GetRequests, 697 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2019-09-08 19:43:22,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16414 states. [2019-09-08 19:43:23,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16414 to 16402. [2019-09-08 19:43:23,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16402 states. [2019-09-08 19:43:23,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16402 states to 16402 states and 22926 transitions. [2019-09-08 19:43:23,250 INFO L78 Accepts]: Start accepts. Automaton has 16402 states and 22926 transitions. Word has length 697 [2019-09-08 19:43:23,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:43:23,250 INFO L475 AbstractCegarLoop]: Abstraction has 16402 states and 22926 transitions. [2019-09-08 19:43:23,250 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-09-08 19:43:23,251 INFO L276 IsEmpty]: Start isEmpty. Operand 16402 states and 22926 transitions. [2019-09-08 19:43:23,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 700 [2019-09-08 19:43:23,280 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:43:23,281 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 34, 12, 12, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 19:43:23,281 INFO L418 AbstractCegarLoop]: === Iteration 29 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:43:23,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:43:23,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1207758007, now seen corresponding path program 2 times [2019-09-08 19:43:23,282 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:43:23,282 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:43:23,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:43:23,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:43:23,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:43:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:43:23,946 INFO L134 CoverageAnalysis]: Checked inductivity of 7280 backedges. 2 proven. 144 refuted. 0 times theorem prover too weak. 7134 trivial. 0 not checked. [2019-09-08 19:43:23,946 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 19:43:23,946 INFO L223 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 [2019-09-08 19:43:23,967 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-09-08 19:43:26,078 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-08 19:43:26,078 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 19:43:26,101 INFO L256 TraceCheckSpWp]: Trace formula consists of 5178 conjuncts, 14 conjunts are in the unsatisfiable core [2019-09-08 19:43:26,110 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 19:43:26,544 INFO L134 CoverageAnalysis]: Checked inductivity of 7280 backedges. 130 proven. 144 refuted. 0 times theorem prover too weak. 7006 trivial. 0 not checked. [2019-09-08 19:43:26,565 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 19:43:26,566 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 16 [2019-09-08 19:43:26,568 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-08 19:43:26,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-08 19:43:26,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2019-09-08 19:43:26,569 INFO L87 Difference]: Start difference. First operand 16402 states and 22926 transitions. Second operand 16 states. [2019-09-08 19:43:27,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:43:27,177 INFO L93 Difference]: Finished difference Result 31431 states and 43957 transitions. [2019-09-08 19:43:27,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-08 19:43:27,177 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 699 [2019-09-08 19:43:27,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:43:27,225 INFO L225 Difference]: With dead ends: 31431 [2019-09-08 19:43:27,225 INFO L226 Difference]: Without dead ends: 16438 [2019-09-08 19:43:27,251 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 713 GetRequests, 699 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2019-09-08 19:43:27,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16438 states. [2019-09-08 19:43:27,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16438 to 16426. [2019-09-08 19:43:27,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16426 states. [2019-09-08 19:43:27,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16426 states to 16426 states and 22950 transitions. [2019-09-08 19:43:27,651 INFO L78 Accepts]: Start accepts. Automaton has 16426 states and 22950 transitions. Word has length 699 [2019-09-08 19:43:27,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:43:27,652 INFO L475 AbstractCegarLoop]: Abstraction has 16426 states and 22950 transitions. [2019-09-08 19:43:27,652 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-08 19:43:27,652 INFO L276 IsEmpty]: Start isEmpty. Operand 16426 states and 22950 transitions. [2019-09-08 19:43:27,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2019-09-08 19:43:27,671 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:43:27,671 INFO L399 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 34, 13, 13, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 19:43:27,671 INFO L418 AbstractCegarLoop]: === Iteration 30 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:43:27,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:43:27,672 INFO L82 PathProgramCache]: Analyzing trace with hash -57214441, now seen corresponding path program 3 times [2019-09-08 19:43:27,672 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:43:27,672 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:43:27,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:43:27,675 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 19:43:27,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:43:27,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:43:28,333 INFO L134 CoverageAnalysis]: Checked inductivity of 7305 backedges. 2 proven. 169 refuted. 0 times theorem prover too weak. 7134 trivial. 0 not checked. [2019-09-08 19:43:28,333 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 19:43:28,333 INFO L223 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 [2019-09-08 19:43:28,351 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-08 19:43:35,938 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-09-08 19:43:35,938 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 19:43:35,969 INFO L256 TraceCheckSpWp]: Trace formula consists of 2609 conjuncts, 11 conjunts are in the unsatisfiable core [2019-09-08 19:43:35,979 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 19:43:37,887 INFO L134 CoverageAnalysis]: Checked inductivity of 7305 backedges. 458 proven. 1 refuted. 0 times theorem prover too weak. 6846 trivial. 0 not checked. [2019-09-08 19:43:37,909 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 19:43:37,910 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 7] total 21 [2019-09-08 19:43:37,911 INFO L454 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-09-08 19:43:37,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-09-08 19:43:37,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2019-09-08 19:43:37,912 INFO L87 Difference]: Start difference. First operand 16426 states and 22950 transitions. Second operand 21 states. [2019-09-08 19:43:39,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:43:39,663 INFO L93 Difference]: Finished difference Result 32884 states and 46566 transitions. [2019-09-08 19:43:39,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-09-08 19:43:39,664 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 694 [2019-09-08 19:43:39,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:43:39,713 INFO L225 Difference]: With dead ends: 32884 [2019-09-08 19:43:39,713 INFO L226 Difference]: Without dead ends: 16489 [2019-09-08 19:43:39,747 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 711 GetRequests, 690 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2019-09-08 19:43:39,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16489 states. [2019-09-08 19:43:40,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16489 to 16459. [2019-09-08 19:43:40,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16459 states. [2019-09-08 19:43:40,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16459 states to 16459 states and 22992 transitions. [2019-09-08 19:43:40,145 INFO L78 Accepts]: Start accepts. Automaton has 16459 states and 22992 transitions. Word has length 694 [2019-09-08 19:43:40,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:43:40,145 INFO L475 AbstractCegarLoop]: Abstraction has 16459 states and 22992 transitions. [2019-09-08 19:43:40,145 INFO L476 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-09-08 19:43:40,145 INFO L276 IsEmpty]: Start isEmpty. Operand 16459 states and 22992 transitions. [2019-09-08 19:43:40,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 738 [2019-09-08 19:43:40,164 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:43:40,164 INFO L399 BasicCegarLoop]: trace histogram [68, 34, 34, 34, 34, 34, 34, 34, 34, 14, 14, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 19:43:40,165 INFO L418 AbstractCegarLoop]: === Iteration 31 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:43:40,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:43:40,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1897333393, now seen corresponding path program 3 times [2019-09-08 19:43:40,165 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:43:40,165 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:43:40,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:43:40,168 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 19:43:40,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:43:40,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:43:40,896 INFO L134 CoverageAnalysis]: Checked inductivity of 10205 backedges. 2 proven. 196 refuted. 0 times theorem prover too weak. 10007 trivial. 0 not checked. [2019-09-08 19:43:40,897 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 19:43:40,897 INFO L223 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 [2019-09-08 19:43:40,918 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-08 19:43:45,966 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-09-08 19:43:45,967 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 19:43:45,996 INFO L256 TraceCheckSpWp]: Trace formula consists of 2476 conjuncts, 46 conjunts are in the unsatisfiable core [2019-09-08 19:43:46,027 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 19:43:46,370 INFO L134 CoverageAnalysis]: Checked inductivity of 10205 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 10075 trivial. 0 not checked. [2019-09-08 19:43:46,384 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 19:43:46,384 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [17] total 18 [2019-09-08 19:43:46,385 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-09-08 19:43:46,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-09-08 19:43:46,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2019-09-08 19:43:46,386 INFO L87 Difference]: Start difference. First operand 16459 states and 22992 transitions. Second operand 18 states. [2019-09-08 19:43:46,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:43:46,851 INFO L93 Difference]: Finished difference Result 31595 states and 44174 transitions. [2019-09-08 19:43:46,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-09-08 19:43:46,852 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 737 [2019-09-08 19:43:46,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:43:46,919 INFO L225 Difference]: With dead ends: 31595 [2019-09-08 19:43:46,919 INFO L226 Difference]: Without dead ends: 16546 [2019-09-08 19:43:46,968 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 753 GetRequests, 737 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2019-09-08 19:43:46,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16546 states. [2019-09-08 19:43:47,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16546 to 16489. [2019-09-08 19:43:47,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16489 states. [2019-09-08 19:43:47,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16489 states to 16489 states and 23022 transitions. [2019-09-08 19:43:47,394 INFO L78 Accepts]: Start accepts. Automaton has 16489 states and 23022 transitions. Word has length 737 [2019-09-08 19:43:47,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:43:47,395 INFO L475 AbstractCegarLoop]: Abstraction has 16489 states and 23022 transitions. [2019-09-08 19:43:47,395 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-09-08 19:43:47,395 INFO L276 IsEmpty]: Start isEmpty. Operand 16489 states and 23022 transitions. [2019-09-08 19:43:47,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 733 [2019-09-08 19:43:47,416 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:43:47,417 INFO L399 BasicCegarLoop]: trace histogram [68, 34, 34, 34, 34, 34, 34, 34, 34, 15, 15, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 19:43:47,417 INFO L418 AbstractCegarLoop]: === Iteration 32 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:43:47,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:43:47,418 INFO L82 PathProgramCache]: Analyzing trace with hash 463802703, now seen corresponding path program 4 times [2019-09-08 19:43:47,418 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:43:47,418 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:43:47,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:43:47,420 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 19:43:47,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:43:47,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:43:48,177 INFO L134 CoverageAnalysis]: Checked inductivity of 10234 backedges. 2 proven. 225 refuted. 0 times theorem prover too weak. 10007 trivial. 0 not checked. [2019-09-08 19:43:48,177 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 19:43:48,177 INFO L223 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 [2019-09-08 19:43:48,194 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-09-08 19:43:50,969 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-09-08 19:43:50,969 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 19:43:50,992 INFO L256 TraceCheckSpWp]: Trace formula consists of 5401 conjuncts, 17 conjunts are in the unsatisfiable core [2019-09-08 19:43:51,001 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 19:43:51,217 INFO L134 CoverageAnalysis]: Checked inductivity of 10234 backedges. 130 proven. 225 refuted. 0 times theorem prover too weak. 9879 trivial. 0 not checked. [2019-09-08 19:43:51,234 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 19:43:51,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 19 [2019-09-08 19:43:51,235 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-08 19:43:51,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-08 19:43:51,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2019-09-08 19:43:51,236 INFO L87 Difference]: Start difference. First operand 16489 states and 23022 transitions. Second operand 19 states. [2019-09-08 19:43:51,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:43:51,697 INFO L93 Difference]: Finished difference Result 31604 states and 44147 transitions. [2019-09-08 19:43:51,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-09-08 19:43:51,697 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 732 [2019-09-08 19:43:51,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:43:51,755 INFO L225 Difference]: With dead ends: 31604 [2019-09-08 19:43:51,755 INFO L226 Difference]: Without dead ends: 16525 [2019-09-08 19:43:51,787 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 749 GetRequests, 732 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2019-09-08 19:43:51,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16525 states. [2019-09-08 19:43:52,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16525 to 16513. [2019-09-08 19:43:52,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16513 states. [2019-09-08 19:43:52,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16513 states to 16513 states and 23046 transitions. [2019-09-08 19:43:52,226 INFO L78 Accepts]: Start accepts. Automaton has 16513 states and 23046 transitions. Word has length 732 [2019-09-08 19:43:52,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:43:52,226 INFO L475 AbstractCegarLoop]: Abstraction has 16513 states and 23046 transitions. [2019-09-08 19:43:52,226 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-08 19:43:52,226 INFO L276 IsEmpty]: Start isEmpty. Operand 16513 states and 23046 transitions. [2019-09-08 19:43:52,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 744 [2019-09-08 19:43:52,249 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:43:52,249 INFO L399 BasicCegarLoop]: trace histogram [68, 34, 34, 34, 34, 34, 34, 34, 34, 16, 16, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 19:43:52,250 INFO L418 AbstractCegarLoop]: === Iteration 33 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:43:52,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:43:52,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1401005836, now seen corresponding path program 1 times [2019-09-08 19:43:52,250 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:43:52,250 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:43:52,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:43:52,254 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 19:43:52,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:43:52,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:43:53,128 INFO L134 CoverageAnalysis]: Checked inductivity of 10265 backedges. 2 proven. 256 refuted. 0 times theorem prover too weak. 10007 trivial. 0 not checked. [2019-09-08 19:43:53,128 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 19:43:53,128 INFO L223 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 [2019-09-08 19:43:53,151 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:43:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:43:54,220 INFO L256 TraceCheckSpWp]: Trace formula consists of 5426 conjuncts, 18 conjunts are in the unsatisfiable core [2019-09-08 19:43:54,229 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 19:43:54,744 INFO L134 CoverageAnalysis]: Checked inductivity of 10265 backedges. 130 proven. 256 refuted. 0 times theorem prover too weak. 9879 trivial. 0 not checked. [2019-09-08 19:43:54,761 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 19:43:54,761 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 20 [2019-09-08 19:43:54,765 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-08 19:43:54,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-08 19:43:54,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2019-09-08 19:43:54,766 INFO L87 Difference]: Start difference. First operand 16513 states and 23046 transitions. Second operand 20 states. [2019-09-08 19:43:55,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:43:55,441 INFO L93 Difference]: Finished difference Result 31652 states and 44195 transitions. [2019-09-08 19:43:55,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-09-08 19:43:55,441 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 743 [2019-09-08 19:43:55,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:43:55,506 INFO L225 Difference]: With dead ends: 31652 [2019-09-08 19:43:55,506 INFO L226 Difference]: Without dead ends: 16549 [2019-09-08 19:43:55,540 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 761 GetRequests, 743 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2019-09-08 19:43:55,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16549 states. [2019-09-08 19:43:55,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16549 to 16537. [2019-09-08 19:43:55,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16537 states. [2019-09-08 19:43:56,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16537 states to 16537 states and 23070 transitions. [2019-09-08 19:43:56,003 INFO L78 Accepts]: Start accepts. Automaton has 16537 states and 23070 transitions. Word has length 743 [2019-09-08 19:43:56,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:43:56,004 INFO L475 AbstractCegarLoop]: Abstraction has 16537 states and 23070 transitions. [2019-09-08 19:43:56,004 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-09-08 19:43:56,004 INFO L276 IsEmpty]: Start isEmpty. Operand 16537 states and 23070 transitions. [2019-09-08 19:43:56,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 746 [2019-09-08 19:43:56,028 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:43:56,028 INFO L399 BasicCegarLoop]: trace histogram [68, 34, 34, 34, 34, 34, 34, 34, 34, 17, 17, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 19:43:56,029 INFO L418 AbstractCegarLoop]: === Iteration 34 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:43:56,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:43:56,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1570464264, now seen corresponding path program 2 times [2019-09-08 19:43:56,029 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:43:56,029 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:43:56,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:43:56,031 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 19:43:56,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:43:56,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:43:56,860 INFO L134 CoverageAnalysis]: Checked inductivity of 10298 backedges. 2 proven. 289 refuted. 0 times theorem prover too weak. 10007 trivial. 0 not checked. [2019-09-08 19:43:56,861 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 19:43:56,861 INFO L223 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 [2019-09-08 19:43:56,880 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-09-08 19:44:00,163 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-08 19:44:00,163 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 19:44:00,187 INFO L256 TraceCheckSpWp]: Trace formula consists of 5432 conjuncts, 19 conjunts are in the unsatisfiable core [2019-09-08 19:44:00,196 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 19:44:00,497 INFO L134 CoverageAnalysis]: Checked inductivity of 10298 backedges. 130 proven. 289 refuted. 0 times theorem prover too weak. 9879 trivial. 0 not checked. [2019-09-08 19:44:00,511 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 19:44:00,511 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 21 [2019-09-08 19:44:00,512 INFO L454 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-09-08 19:44:00,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-09-08 19:44:00,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2019-09-08 19:44:00,512 INFO L87 Difference]: Start difference. First operand 16537 states and 23070 transitions. Second operand 21 states. [2019-09-08 19:44:00,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:44:00,976 INFO L93 Difference]: Finished difference Result 31700 states and 44243 transitions. [2019-09-08 19:44:00,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-09-08 19:44:00,977 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 745 [2019-09-08 19:44:00,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:44:01,026 INFO L225 Difference]: With dead ends: 31700 [2019-09-08 19:44:01,026 INFO L226 Difference]: Without dead ends: 16573 [2019-09-08 19:44:01,054 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 764 GetRequests, 745 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2019-09-08 19:44:01,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16573 states. [2019-09-08 19:44:01,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16573 to 16561. [2019-09-08 19:44:01,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16561 states. [2019-09-08 19:44:01,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16561 states to 16561 states and 23094 transitions. [2019-09-08 19:44:01,468 INFO L78 Accepts]: Start accepts. Automaton has 16561 states and 23094 transitions. Word has length 745 [2019-09-08 19:44:01,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:44:01,468 INFO L475 AbstractCegarLoop]: Abstraction has 16561 states and 23094 transitions. [2019-09-08 19:44:01,468 INFO L476 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-09-08 19:44:01,468 INFO L276 IsEmpty]: Start isEmpty. Operand 16561 states and 23094 transitions. [2019-09-08 19:44:01,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 748 [2019-09-08 19:44:01,489 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:44:01,489 INFO L399 BasicCegarLoop]: trace histogram [68, 34, 34, 34, 34, 34, 34, 34, 34, 18, 18, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 19:44:01,490 INFO L418 AbstractCegarLoop]: === Iteration 35 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:44:01,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:44:01,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1211256324, now seen corresponding path program 3 times [2019-09-08 19:44:01,490 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:44:01,490 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:44:01,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:44:01,493 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 19:44:01,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:44:01,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:44:02,345 INFO L134 CoverageAnalysis]: Checked inductivity of 10333 backedges. 2 proven. 324 refuted. 0 times theorem prover too weak. 10007 trivial. 0 not checked. [2019-09-08 19:44:02,345 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 19:44:02,346 INFO L223 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 [2019-09-08 19:44:02,363 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-08 19:44:10,342 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-09-08 19:44:10,342 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 19:44:10,374 INFO L256 TraceCheckSpWp]: Trace formula consists of 2634 conjuncts, 13 conjunts are in the unsatisfiable core [2019-09-08 19:44:10,383 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 19:44:10,707 INFO L134 CoverageAnalysis]: Checked inductivity of 10333 backedges. 623 proven. 3 refuted. 0 times theorem prover too weak. 9707 trivial. 0 not checked. [2019-09-08 19:44:10,722 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 19:44:10,722 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 8] total 27 [2019-09-08 19:44:10,723 INFO L454 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-09-08 19:44:10,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-09-08 19:44:10,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=480, Unknown=0, NotChecked=0, Total=702 [2019-09-08 19:44:10,724 INFO L87 Difference]: Start difference. First operand 16561 states and 23094 transitions. Second operand 27 states. [2019-09-08 19:44:11,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:44:11,883 INFO L93 Difference]: Finished difference Result 33172 states and 46899 transitions. [2019-09-08 19:44:11,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-09-08 19:44:11,883 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 747 [2019-09-08 19:44:11,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:44:11,937 INFO L225 Difference]: With dead ends: 33172 [2019-09-08 19:44:11,937 INFO L226 Difference]: Without dead ends: 16642 [2019-09-08 19:44:11,974 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 769 GetRequests, 742 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=230, Invalid=582, Unknown=0, NotChecked=0, Total=812 [2019-09-08 19:44:11,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16642 states. [2019-09-08 19:44:12,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16642 to 16594. [2019-09-08 19:44:12,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16594 states. [2019-09-08 19:44:12,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16594 states to 16594 states and 23136 transitions. [2019-09-08 19:44:12,401 INFO L78 Accepts]: Start accepts. Automaton has 16594 states and 23136 transitions. Word has length 747 [2019-09-08 19:44:12,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:44:12,401 INFO L475 AbstractCegarLoop]: Abstraction has 16594 states and 23136 transitions. [2019-09-08 19:44:12,401 INFO L476 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-09-08 19:44:12,401 INFO L276 IsEmpty]: Start isEmpty. Operand 16594 states and 23136 transitions. [2019-09-08 19:44:12,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 775 [2019-09-08 19:44:12,422 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:44:12,423 INFO L399 BasicCegarLoop]: trace histogram [102, 34, 34, 34, 34, 34, 34, 34, 34, 19, 19, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 19:44:12,423 INFO L418 AbstractCegarLoop]: === Iteration 36 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:44:12,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:44:12,424 INFO L82 PathProgramCache]: Analyzing trace with hash 124953471, now seen corresponding path program 5 times [2019-09-08 19:44:12,424 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:44:12,424 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:44:12,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:44:12,426 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 19:44:12,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:44:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:44:13,436 INFO L134 CoverageAnalysis]: Checked inductivity of 14399 backedges. 2 proven. 361 refuted. 0 times theorem prover too weak. 14036 trivial. 0 not checked. [2019-09-08 19:44:13,436 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 19:44:13,436 INFO L223 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 [2019-09-08 19:44:13,456 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-09-08 19:44:13,712 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2019-09-08 19:44:13,712 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 19:44:13,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 16 conjunts are in the unsatisfiable core [2019-09-08 19:44:13,722 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 19:44:14,119 INFO L134 CoverageAnalysis]: Checked inductivity of 14399 backedges. 3696 proven. 6 refuted. 0 times theorem prover too weak. 10697 trivial. 0 not checked. [2019-09-08 19:44:14,124 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 19:44:14,124 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 9] total 29 [2019-09-08 19:44:14,125 INFO L454 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-09-08 19:44:14,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-09-08 19:44:14,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=567, Unknown=0, NotChecked=0, Total=812 [2019-09-08 19:44:14,126 INFO L87 Difference]: Start difference. First operand 16594 states and 23136 transitions. Second operand 29 states. [2019-09-08 19:44:17,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:44:17,588 INFO L93 Difference]: Finished difference Result 33256 states and 47028 transitions. [2019-09-08 19:44:17,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-09-08 19:44:17,588 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 774 [2019-09-08 19:44:17,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:44:17,635 INFO L225 Difference]: With dead ends: 33256 [2019-09-08 19:44:17,635 INFO L226 Difference]: Without dead ends: 16693 [2019-09-08 19:44:17,667 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 797 GetRequests, 768 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=253, Invalid=677, Unknown=0, NotChecked=0, Total=930 [2019-09-08 19:44:17,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16693 states. [2019-09-08 19:44:18,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16693 to 16627. [2019-09-08 19:44:18,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16627 states. [2019-09-08 19:44:18,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16627 states to 16627 states and 23178 transitions. [2019-09-08 19:44:18,074 INFO L78 Accepts]: Start accepts. Automaton has 16627 states and 23178 transitions. Word has length 774 [2019-09-08 19:44:18,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:44:18,074 INFO L475 AbstractCegarLoop]: Abstraction has 16627 states and 23178 transitions. [2019-09-08 19:44:18,075 INFO L476 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-09-08 19:44:18,075 INFO L276 IsEmpty]: Start isEmpty. Operand 16627 states and 23178 transitions. [2019-09-08 19:44:18,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 820 [2019-09-08 19:44:18,095 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:44:18,095 INFO L399 BasicCegarLoop]: trace histogram [136, 34, 34, 34, 34, 34, 34, 34, 34, 20, 20, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 19:44:18,096 INFO L418 AbstractCegarLoop]: === Iteration 37 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:44:18,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:44:18,096 INFO L82 PathProgramCache]: Analyzing trace with hash 546365828, now seen corresponding path program 4 times [2019-09-08 19:44:18,096 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:44:18,096 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:44:18,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:44:18,098 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 19:44:18,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:44:18,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:44:19,193 INFO L134 CoverageAnalysis]: Checked inductivity of 19623 backedges. 2 proven. 400 refuted. 0 times theorem prover too weak. 19221 trivial. 0 not checked. [2019-09-08 19:44:19,193 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 19:44:19,193 INFO L223 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 [2019-09-08 19:44:19,209 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-09-08 19:44:32,174 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-09-08 19:44:32,175 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 19:44:32,203 INFO L256 TraceCheckSpWp]: Trace formula consists of 5858 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-08 19:44:32,213 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 19:44:32,449 INFO L134 CoverageAnalysis]: Checked inductivity of 19623 backedges. 130 proven. 400 refuted. 0 times theorem prover too weak. 19093 trivial. 0 not checked. [2019-09-08 19:44:32,466 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 19:44:32,466 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 24 [2019-09-08 19:44:32,467 INFO L454 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-09-08 19:44:32,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-09-08 19:44:32,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2019-09-08 19:44:32,468 INFO L87 Difference]: Start difference. First operand 16627 states and 23178 transitions. Second operand 24 states. [2019-09-08 19:44:32,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 19:44:32,934 INFO L93 Difference]: Finished difference Result 31878 states and 44455 transitions. [2019-09-08 19:44:32,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-09-08 19:44:32,934 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 819 [2019-09-08 19:44:32,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 19:44:32,989 INFO L225 Difference]: With dead ends: 31878 [2019-09-08 19:44:32,989 INFO L226 Difference]: Without dead ends: 16663 [2019-09-08 19:44:33,021 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 841 GetRequests, 819 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2019-09-08 19:44:33,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16663 states. [2019-09-08 19:44:33,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16663 to 16651. [2019-09-08 19:44:33,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16651 states. [2019-09-08 19:44:33,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16651 states to 16651 states and 23202 transitions. [2019-09-08 19:44:33,702 INFO L78 Accepts]: Start accepts. Automaton has 16651 states and 23202 transitions. Word has length 819 [2019-09-08 19:44:33,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 19:44:33,703 INFO L475 AbstractCegarLoop]: Abstraction has 16651 states and 23202 transitions. [2019-09-08 19:44:33,703 INFO L476 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-09-08 19:44:33,703 INFO L276 IsEmpty]: Start isEmpty. Operand 16651 states and 23202 transitions. [2019-09-08 19:44:33,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 822 [2019-09-08 19:44:33,727 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 19:44:33,727 INFO L399 BasicCegarLoop]: trace histogram [136, 34, 34, 34, 34, 34, 34, 34, 34, 21, 21, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 19:44:33,727 INFO L418 AbstractCegarLoop]: === Iteration 38 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 19:44:33,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 19:44:33,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1542931080, now seen corresponding path program 5 times [2019-09-08 19:44:33,728 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 19:44:33,728 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 19:44:33,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:44:33,731 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 19:44:33,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 19:44:33,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 19:44:34,642 INFO L134 CoverageAnalysis]: Checked inductivity of 19664 backedges. 2 proven. 441 refuted. 0 times theorem prover too weak. 19221 trivial. 0 not checked. [2019-09-08 19:44:34,643 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 19:44:34,643 INFO L223 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 [2019-09-08 19:44:34,661 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1