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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 22:06:56,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:06:56,495 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:06:56,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:06:56,509 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:06:56,510 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:06:56,513 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:06:56,524 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:06:56,526 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:06:56,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:06:56,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:06:56,530 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:06:56,531 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:06:56,533 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:06:56,534 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:06:56,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:06:56,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:06:56,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:06:56,538 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:06:56,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:06:56,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:06:56,543 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:06:56,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:06:56,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:06:56,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 22:06:56,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 22:06:56,547 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 22:06:56,548 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 22:06:56,548 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 22:06:56,549 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 22:06:56,549 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 22:06:56,550 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 22:06:56,551 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 22:06:56,552 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 22:06:56,552 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 22:06:56,553 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 22:06:56,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 22:06:56,554 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 22:06:56,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:06:56,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:06:56,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:06:56,556 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 22:06:56,581 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:06:56,581 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:06:56,584 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:06:56,585 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:06:56,585 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:06:56,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:06:56,586 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:06:56,586 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:06:56,586 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:06:56,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:06:56,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:06:56,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:06:56,587 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:06:56,587 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:06:56,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:06:56,588 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:06:56,588 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:06:56,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:06:56,590 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:06:56,590 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:06:56,590 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:06:56,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:06:56,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:06:56,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:06:56,591 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:06:56,592 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:06:56,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:06:56,592 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:06:56,592 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 22:06:56,915 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:06:56,939 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:06:56,942 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:06:56,944 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:06:56,945 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:06:56,946 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2019-10-13 22:06:57,018 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/243bea591/b5ba1a687e1b4637812d05ece46d26d8/FLAGc94c594c9 [2019-10-13 22:06:57,771 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:06:57,773 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2019-10-13 22:06:57,813 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/243bea591/b5ba1a687e1b4637812d05ece46d26d8/FLAGc94c594c9 [2019-10-13 22:06:58,328 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/243bea591/b5ba1a687e1b4637812d05ece46d26d8 [2019-10-13 22:06:58,342 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:06:58,344 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:06:58,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:06:58,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:06:58,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:06:58,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:06:58" (1/1) ... [2019-10-13 22:06:58,353 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26af9634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:06:58, skipping insertion in model container [2019-10-13 22:06:58,353 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:06:58" (1/1) ... [2019-10-13 22:06:58,361 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:06:58,455 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:06:59,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:06:59,905 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:07:00,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:07:00,675 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:07:00,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:07:00 WrapperNode [2019-10-13 22:07:00,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:07:00,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:07:00,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:07:00,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:07:00,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:07:00" (1/1) ... [2019-10-13 22:07:00,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:07:00" (1/1) ... [2019-10-13 22:07:00,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:07:00" (1/1) ... [2019-10-13 22:07:00,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:07:00" (1/1) ... [2019-10-13 22:07:00,926 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:07:00" (1/1) ... [2019-10-13 22:07:00,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:07:00" (1/1) ... [2019-10-13 22:07:00,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:07:00" (1/1) ... [2019-10-13 22:07:00,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:07:00,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:07:00,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:07:00,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:07:00,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:07:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:07:01,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:07:01,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:07:01,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 22:07:01,068 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-13 22:07:01,068 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-10-13 22:07:01,068 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-13 22:07:01,068 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-13 22:07:01,069 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-13 22:07:01,069 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-13 22:07:01,069 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2019-10-13 22:07:01,069 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ia32_task [2019-10-13 22:07:01,069 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-10-13 22:07:01,070 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-13 22:07:01,070 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-13 22:07:01,070 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2019-10-13 22:07:01,070 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-13 22:07:01,071 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2019-10-13 22:07:01,071 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2019-10-13 22:07:01,071 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-13 22:07:01,071 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-13 22:07:01,071 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2019-10-13 22:07:01,072 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-10-13 22:07:01,072 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-10-13 22:07:01,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 22:07:01,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 22:07:01,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 22:07:01,073 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 22:07:01,073 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 22:07:01,073 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2019-10-13 22:07:01,073 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2019-10-13 22:07:01,073 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2019-10-13 22:07:01,073 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_events_per_packet [2019-10-13 22:07:01,074 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_min [2019-10-13 22:07:01,074 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_set_min [2019-10-13 22:07:01,074 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_max [2019-10-13 22:07:01,074 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_set_max [2019-10-13 22:07:01,074 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_set_fuzz [2019-10-13 22:07:01,074 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_flat [2019-10-13 22:07:01,075 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_set_flat [2019-10-13 22:07:01,075 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2019-10-13 22:07:01,075 INFO L138 BoogieDeclarations]: Found implementation of procedure is_x32_task [2019-10-13 22:07:01,075 INFO L138 BoogieDeclarations]: Found implementation of procedure is_compat_task [2019-10-13 22:07:01,075 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event_size [2019-10-13 22:07:01,076 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_dev_event [2019-10-13 22:07:01,076 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_alloc_id [2019-10-13 22:07:01,076 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_find [2019-10-13 22:07:01,076 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_reserve_slot [2019-10-13 22:07:01,076 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_done [2019-10-13 22:07:01,076 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_send [2019-10-13 22:07:01,077 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_submit [2019-10-13 22:07:01,077 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_flush_requests [2019-10-13 22:07:01,077 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_dev_set_gain [2019-10-13 22:07:01,077 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_dev_set_autocenter [2019-10-13 22:07:01,077 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_dev_playback [2019-10-13 22:07:01,077 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_dev_upload_effect [2019-10-13 22:07:01,077 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_dev_erase_effect [2019-10-13 22:07:01,078 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_destroy_device [2019-10-13 22:07:01,078 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_create_device [2019-10-13 22:07:01,078 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_open [2019-10-13 22:07:01,078 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_validate_absbits [2019-10-13 22:07:01,078 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_allocate_device [2019-10-13 22:07:01,079 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_setup_device [2019-10-13 22:07:01,079 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_inject_event [2019-10-13 22:07:01,079 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_write [2019-10-13 22:07:01,079 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_fetch_next_event [2019-10-13 22:07:01,079 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_events_to_user [2019-10-13 22:07:01,079 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_read [2019-10-13 22:07:01,080 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_poll [2019-10-13 22:07:01,080 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_release [2019-10-13 22:07:01,080 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_ff_upload_to_user [2019-10-13 22:07:01,080 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_ff_upload_from_user [2019-10-13 22:07:01,080 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_ioctl_handler [2019-10-13 22:07:01,080 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_ioctl [2019-10-13 22:07:01,081 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_compat_ioctl [2019-10-13 22:07:01,081 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_init [2019-10-13 22:07:01,081 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_exit [2019-10-13 22:07:01,081 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:07:01,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2019-10-13 22:07:01,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2019-10-13 22:07:01,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2019-10-13 22:07:01,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2019-10-13 22:07:01,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2019-10-13 22:07:01,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_6 [2019-10-13 22:07:01,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2019-10-13 22:07:01,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_8 [2019-10-13 22:07:01,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2019-10-13 22:07:01,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_10 [2019-10-13 22:07:01,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-10-13 22:07:01,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_12 [2019-10-13 22:07:01,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2019-10-13 22:07:01,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 22:07:01,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 22:07:01,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-10-13 22:07:01,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-10-13 22:07:01,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-10-13 22:07:01,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-10-13 22:07:01,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-13 22:07:01,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-10-13 22:07:01,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-10-13 22:07:01,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-13 22:07:01,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-13 22:07:01,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-10-13 22:07:01,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-10-13 22:07:01,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-13 22:07:01,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-13 22:07:01,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-10-13 22:07:01,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_uinput_device [2019-10-13 22:07:01,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_uinput_device [2019-10-13 22:07:01,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_uinput_device [2019-10-13 22:07:01,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_uinput_device [2019-10-13 22:07:01,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_uinput_device [2019-10-13 22:07:01,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_uinput_device [2019-10-13 22:07:01,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_uinput_device [2019-10-13 22:07:01,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 22:07:01,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 22:07:01,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-13 22:07:01,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-13 22:07:01,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-13 22:07:01,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-13 22:07:01,088 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-13 22:07:01,088 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-13 22:07:01,088 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-13 22:07:01,088 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2019-10-13 22:07:01,088 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-13 22:07:01,088 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2019-10-13 22:07:01,089 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2019-10-13 22:07:01,089 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-13 22:07:01,089 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-13 22:07:01,089 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2019-10-13 22:07:01,089 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-10-13 22:07:01,089 INFO L138 BoogieDeclarations]: Found implementation of procedure input_alloc_absinfo [2019-10-13 22:07:01,090 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2019-10-13 22:07:01,090 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event_from_user [2019-10-13 22:07:01,090 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event_to_user [2019-10-13 22:07:01,090 INFO L138 BoogieDeclarations]: Found implementation of procedure input_ff_create [2019-10-13 22:07:01,090 INFO L138 BoogieDeclarations]: Found implementation of procedure input_ff_destroy [2019-10-13 22:07:01,090 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2019-10-13 22:07:01,091 INFO L138 BoogieDeclarations]: Found implementation of procedure input_mt_init_slots [2019-10-13 22:07:01,091 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2019-10-13 22:07:01,091 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2019-10-13 22:07:01,091 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrndup [2019-10-13 22:07:01,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-10-13 22:07:01,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2019-10-13 22:07:01,091 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2019-10-13 22:07:01,092 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-13 22:07:01,092 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2019-10-13 22:07:01,092 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2019-10-13 22:07:01,092 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-13 22:07:01,092 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2019-10-13 22:07:01,092 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-10-13 22:07:01,093 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-13 22:07:01,093 INFO L138 BoogieDeclarations]: Found implementation of procedure nonseekable_open [2019-10-13 22:07:01,093 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2019-10-13 22:07:01,093 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 22:07:01,093 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-13 22:07:01,094 INFO L138 BoogieDeclarations]: Found implementation of procedure strndup_user [2019-10-13 22:07:01,094 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2019-10-13 22:07:01,094 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-10-13 22:07:01,094 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 22:07:01,094 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 22:07:01,094 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 22:07:01,095 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 22:07:01,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:07:01,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 22:07:01,095 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-13 22:07:01,095 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-10-13 22:07:01,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 22:07:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-13 22:07:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 22:07:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-13 22:07:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-13 22:07:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-13 22:07:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure strndup_user [2019-10-13 22:07:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2019-10-13 22:07:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 22:07:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 22:07:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure kstrndup [2019-10-13 22:07:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-10-13 22:07:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-13 22:07:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-13 22:07:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-13 22:07:01,098 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-10-13 22:07:01,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2019-10-13 22:07:01,098 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-13 22:07:01,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2019-10-13 22:07:01,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2019-10-13 22:07:01,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2019-10-13 22:07:01,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2019-10-13 22:07:01,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-10-13 22:07:01,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2019-10-13 22:07:01,099 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2019-10-13 22:07:01,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_6 [2019-10-13 22:07:01,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_8 [2019-10-13 22:07:01,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_10 [2019-10-13 22:07:01,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_12 [2019-10-13 22:07:01,100 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-13 22:07:01,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2019-10-13 22:07:01,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2019-10-13 22:07:01,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-10-13 22:07:01,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-10-13 22:07:01,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-10-13 22:07:01,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-10-13 22:07:01,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-10-13 22:07:01,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_uinput_device [2019-10-13 22:07:01,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_uinput_device [2019-10-13 22:07:01,101 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2019-10-13 22:07:01,101 INFO L130 BoogieDeclarations]: Found specification of procedure is_ia32_task [2019-10-13 22:07:01,101 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-10-13 22:07:01,101 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-13 22:07:01,102 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-13 22:07:01,102 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2019-10-13 22:07:01,102 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-13 22:07:01,102 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2019-10-13 22:07:01,102 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-13 22:07:01,102 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-13 22:07:01,102 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2019-10-13 22:07:01,103 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-13 22:07:01,103 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2019-10-13 22:07:01,103 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2019-10-13 22:07:01,103 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-13 22:07:01,103 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-13 22:07:01,103 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2019-10-13 22:07:01,103 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-10-13 22:07:01,104 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2019-10-13 22:07:01,104 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2019-10-13 22:07:01,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 22:07:01,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 22:07:01,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 22:07:01,104 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2019-10-13 22:07:01,104 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2019-10-13 22:07:01,105 INFO L130 BoogieDeclarations]: Found specification of procedure no_llseek [2019-10-13 22:07:01,105 INFO L130 BoogieDeclarations]: Found specification of procedure nonseekable_open [2019-10-13 22:07:01,105 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-13 22:07:01,105 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-13 22:07:01,105 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-13 22:07:01,105 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-13 22:07:01,105 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2019-10-13 22:07:01,105 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 22:07:01,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 22:07:01,106 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-13 22:07:01,106 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-10-13 22:07:01,106 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-10-13 22:07:01,106 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 22:07:01,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 22:07:01,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 22:07:01,106 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 22:07:01,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 22:07:01,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 22:07:01,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 22:07:01,107 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 22:07:01,107 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 22:07:01,107 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 22:07:01,107 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2019-10-13 22:07:01,107 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2019-10-13 22:07:01,108 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-13 22:07:01,108 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-13 22:07:01,108 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2019-10-13 22:07:01,108 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2019-10-13 22:07:01,108 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2019-10-13 22:07:01,108 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2019-10-13 22:07:01,108 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2019-10-13 22:07:01,109 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2019-10-13 22:07:01,109 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2019-10-13 22:07:01,109 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_events_per_packet [2019-10-13 22:07:01,109 INFO L130 BoogieDeclarations]: Found specification of procedure input_alloc_absinfo [2019-10-13 22:07:01,109 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_min [2019-10-13 22:07:01,109 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_set_min [2019-10-13 22:07:01,109 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_max [2019-10-13 22:07:01,110 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_set_max [2019-10-13 22:07:01,110 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_set_fuzz [2019-10-13 22:07:01,110 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_flat [2019-10-13 22:07:01,110 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_set_flat [2019-10-13 22:07:01,110 INFO L130 BoogieDeclarations]: Found specification of procedure input_ff_create [2019-10-13 22:07:01,110 INFO L130 BoogieDeclarations]: Found specification of procedure input_ff_destroy [2019-10-13 22:07:01,110 INFO L130 BoogieDeclarations]: Found specification of procedure input_mt_init_slots [2019-10-13 22:07:01,110 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2019-10-13 22:07:01,111 INFO L130 BoogieDeclarations]: Found specification of procedure is_x32_task [2019-10-13 22:07:01,111 INFO L130 BoogieDeclarations]: Found specification of procedure is_compat_task [2019-10-13 22:07:01,111 INFO L130 BoogieDeclarations]: Found specification of procedure input_event_size [2019-10-13 22:07:01,111 INFO L130 BoogieDeclarations]: Found specification of procedure input_event_from_user [2019-10-13 22:07:01,111 INFO L130 BoogieDeclarations]: Found specification of procedure input_event_to_user [2019-10-13 22:07:01,111 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_dev_event [2019-10-13 22:07:01,112 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_alloc_id [2019-10-13 22:07:01,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 22:07:01,112 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_find [2019-10-13 22:07:01,112 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_reserve_slot [2019-10-13 22:07:01,112 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_done [2019-10-13 22:07:01,112 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_send [2019-10-13 22:07:01,112 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_submit [2019-10-13 22:07:01,113 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_flush_requests [2019-10-13 22:07:01,113 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_dev_set_gain [2019-10-13 22:07:01,113 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_dev_set_autocenter [2019-10-13 22:07:01,113 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_dev_playback [2019-10-13 22:07:01,113 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_dev_upload_effect [2019-10-13 22:07:01,113 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_dev_erase_effect [2019-10-13 22:07:01,113 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_destroy_device [2019-10-13 22:07:01,113 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_create_device [2019-10-13 22:07:01,114 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_open [2019-10-13 22:07:01,114 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_validate_absbits [2019-10-13 22:07:01,114 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_allocate_device [2019-10-13 22:07:01,114 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_setup_device [2019-10-13 22:07:01,114 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_inject_event [2019-10-13 22:07:01,114 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_write [2019-10-13 22:07:01,114 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_fetch_next_event [2019-10-13 22:07:01,114 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_events_to_user [2019-10-13 22:07:01,115 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_read [2019-10-13 22:07:01,115 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_poll [2019-10-13 22:07:01,115 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_release [2019-10-13 22:07:01,115 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_ff_upload_to_user [2019-10-13 22:07:01,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 22:07:01,115 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_ff_upload_from_user [2019-10-13 22:07:01,115 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_ioctl_handler [2019-10-13 22:07:01,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 22:07:01,116 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_ioctl [2019-10-13 22:07:01,116 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_compat_ioctl [2019-10-13 22:07:01,116 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_init [2019-10-13 22:07:01,116 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_exit [2019-10-13 22:07:01,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 22:07:01,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-10-13 22:07:01,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 22:07:01,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2019-10-13 22:07:01,117 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:07:01,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 22:07:01,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-10-13 22:07:01,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-10-13 22:07:01,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-10-13 22:07:01,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-13 22:07:01,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-10-13 22:07:01,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-13 22:07:01,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-13 22:07:01,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-13 22:07:01,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-13 22:07:01,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_uinput_device [2019-10-13 22:07:01,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_uinput_device [2019-10-13 22:07:01,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_uinput_device [2019-10-13 22:07:01,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_uinput_device [2019-10-13 22:07:01,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_uinput_device [2019-10-13 22:07:01,119 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 22:07:01,119 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 22:07:01,119 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 22:07:01,119 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 22:07:01,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:07:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 22:07:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 22:07:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:07:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 22:07:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 22:07:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 22:07:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 22:07:13,371 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:07:13,372 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 22:07:13,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:07:13 BoogieIcfgContainer [2019-10-13 22:07:13,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:07:13,376 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:07:13,376 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:07:13,379 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:07:13,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:06:58" (1/3) ... [2019-10-13 22:07:13,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a3a1896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:07:13, skipping insertion in model container [2019-10-13 22:07:13,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:07:00" (2/3) ... [2019-10-13 22:07:13,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a3a1896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:07:13, skipping insertion in model container [2019-10-13 22:07:13,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:07:13" (3/3) ... [2019-10-13 22:07:13,384 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2019-10-13 22:07:13,399 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:07:13,411 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:07:13,429 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:07:13,470 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:07:13,471 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:07:13,471 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:07:13,471 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:07:13,471 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:07:13,471 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:07:13,472 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:07:13,472 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:07:13,517 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states. [2019-10-13 22:07:13,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-13 22:07:13,527 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:07:13,528 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:07:13,531 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:07:13,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:07:13,540 INFO L82 PathProgramCache]: Analyzing trace with hash -112171225, now seen corresponding path program 1 times [2019-10-13 22:07:13,555 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:07:13,555 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889764213] [2019-10-13 22:07:13,556 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:07:13,556 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:07:13,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:07:13,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:07:13,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:07:13,986 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889764213] [2019-10-13 22:07:13,987 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:07:13,987 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:07:13,987 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064842716] [2019-10-13 22:07:13,993 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:07:13,993 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:07:14,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:07:14,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:07:14,012 INFO L87 Difference]: Start difference. First operand 944 states. Second operand 3 states. [2019-10-13 22:07:14,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:07:14,237 INFO L93 Difference]: Finished difference Result 1556 states and 2029 transitions. [2019-10-13 22:07:14,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:07:14,244 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-10-13 22:07:14,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:07:14,270 INFO L225 Difference]: With dead ends: 1556 [2019-10-13 22:07:14,270 INFO L226 Difference]: Without dead ends: 780 [2019-10-13 22:07:14,282 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:07:14,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2019-10-13 22:07:14,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 780. [2019-10-13 22:07:14,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 780 states. [2019-10-13 22:07:14,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1000 transitions. [2019-10-13 22:07:14,429 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1000 transitions. Word has length 24 [2019-10-13 22:07:14,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:07:14,431 INFO L462 AbstractCegarLoop]: Abstraction has 780 states and 1000 transitions. [2019-10-13 22:07:14,431 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:07:14,431 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1000 transitions. [2019-10-13 22:07:14,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-13 22:07:14,433 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:07:14,433 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:07:14,433 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:07:14,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:07:14,434 INFO L82 PathProgramCache]: Analyzing trace with hash 817094501, now seen corresponding path program 1 times [2019-10-13 22:07:14,434 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:07:14,434 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491407881] [2019-10-13 22:07:14,434 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:07:14,435 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:07:14,435 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:07:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:07:14,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:07:14,601 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491407881] [2019-10-13 22:07:14,601 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:07:14,604 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:07:14,605 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105454268] [2019-10-13 22:07:14,610 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:07:14,611 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:07:14,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:07:14,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:07:14,611 INFO L87 Difference]: Start difference. First operand 780 states and 1000 transitions. Second operand 3 states. [2019-10-13 22:07:14,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:07:14,699 INFO L93 Difference]: Finished difference Result 782 states and 1001 transitions. [2019-10-13 22:07:14,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:07:14,699 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-10-13 22:07:14,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:07:14,707 INFO L225 Difference]: With dead ends: 782 [2019-10-13 22:07:14,707 INFO L226 Difference]: Without dead ends: 779 [2019-10-13 22:07:14,709 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:07:14,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2019-10-13 22:07:14,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 779. [2019-10-13 22:07:14,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 779 states. [2019-10-13 22:07:14,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 998 transitions. [2019-10-13 22:07:14,795 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 998 transitions. Word has length 25 [2019-10-13 22:07:14,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:07:14,796 INFO L462 AbstractCegarLoop]: Abstraction has 779 states and 998 transitions. [2019-10-13 22:07:14,797 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:07:14,797 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 998 transitions. [2019-10-13 22:07:14,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-13 22:07:14,798 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:07:14,798 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:07:14,798 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:07:14,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:07:14,798 INFO L82 PathProgramCache]: Analyzing trace with hash -440434198, now seen corresponding path program 1 times [2019-10-13 22:07:14,799 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:07:14,799 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745950085] [2019-10-13 22:07:14,799 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:07:14,799 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:07:14,799 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:07:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:07:14,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:07:14,916 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745950085] [2019-10-13 22:07:14,916 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:07:14,917 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:07:14,917 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890214397] [2019-10-13 22:07:14,917 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:07:14,917 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:07:14,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:07:14,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:07:14,918 INFO L87 Difference]: Start difference. First operand 779 states and 998 transitions. Second operand 3 states. [2019-10-13 22:07:15,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:07:15,021 INFO L93 Difference]: Finished difference Result 1025 states and 1301 transitions. [2019-10-13 22:07:15,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:07:15,022 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-10-13 22:07:15,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:07:15,032 INFO L225 Difference]: With dead ends: 1025 [2019-10-13 22:07:15,032 INFO L226 Difference]: Without dead ends: 1010 [2019-10-13 22:07:15,034 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:07:15,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2019-10-13 22:07:15,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 1010. [2019-10-13 22:07:15,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1010 states. [2019-10-13 22:07:15,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1282 transitions. [2019-10-13 22:07:15,114 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1282 transitions. Word has length 26 [2019-10-13 22:07:15,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:07:15,115 INFO L462 AbstractCegarLoop]: Abstraction has 1010 states and 1282 transitions. [2019-10-13 22:07:15,115 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:07:15,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1282 transitions. [2019-10-13 22:07:15,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-13 22:07:15,130 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:07:15,131 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:07:15,131 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:07:15,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:07:15,131 INFO L82 PathProgramCache]: Analyzing trace with hash 956393434, now seen corresponding path program 1 times [2019-10-13 22:07:15,132 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:07:15,132 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94399249] [2019-10-13 22:07:15,132 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:07:15,132 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:07:15,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:07:15,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:07:15,275 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 22:07:15,275 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94399249] [2019-10-13 22:07:15,276 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:07:15,276 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:07:15,276 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652603221] [2019-10-13 22:07:15,277 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:07:15,277 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:07:15,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:07:15,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:07:15,277 INFO L87 Difference]: Start difference. First operand 1010 states and 1282 transitions. Second operand 3 states. [2019-10-13 22:07:15,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:07:15,386 INFO L93 Difference]: Finished difference Result 2046 states and 2628 transitions. [2019-10-13 22:07:15,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:07:15,386 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2019-10-13 22:07:15,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:07:15,394 INFO L225 Difference]: With dead ends: 2046 [2019-10-13 22:07:15,394 INFO L226 Difference]: Without dead ends: 1054 [2019-10-13 22:07:15,399 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:07:15,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2019-10-13 22:07:15,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 1054. [2019-10-13 22:07:15,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1054 states. [2019-10-13 22:07:15,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1357 transitions. [2019-10-13 22:07:15,461 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1357 transitions. Word has length 54 [2019-10-13 22:07:15,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:07:15,462 INFO L462 AbstractCegarLoop]: Abstraction has 1054 states and 1357 transitions. [2019-10-13 22:07:15,462 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:07:15,462 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1357 transitions. [2019-10-13 22:07:15,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-10-13 22:07:15,464 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:07:15,464 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 22:07:15,465 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:07:15,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:07:15,465 INFO L82 PathProgramCache]: Analyzing trace with hash -1647348691, now seen corresponding path program 1 times [2019-10-13 22:07:15,465 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:07:15,466 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353117019] [2019-10-13 22:07:15,466 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:07:15,466 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:07:15,466 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:07:15,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:07:15,663 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 22:07:15,663 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353117019] [2019-10-13 22:07:15,664 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:07:15,664 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 22:07:15,664 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96862604] [2019-10-13 22:07:15,665 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 22:07:15,665 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:07:15,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 22:07:15,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-13 22:07:15,665 INFO L87 Difference]: Start difference. First operand 1054 states and 1357 transitions. Second operand 8 states. [2019-10-13 22:07:16,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:07:16,630 INFO L93 Difference]: Finished difference Result 1174 states and 1479 transitions. [2019-10-13 22:07:16,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 22:07:16,630 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2019-10-13 22:07:16,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:07:16,640 INFO L225 Difference]: With dead ends: 1174 [2019-10-13 22:07:16,641 INFO L226 Difference]: Without dead ends: 1171 [2019-10-13 22:07:16,642 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-13 22:07:16,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states. [2019-10-13 22:07:16,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 1171. [2019-10-13 22:07:16,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1171 states. [2019-10-13 22:07:16,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1476 transitions. [2019-10-13 22:07:16,728 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1476 transitions. Word has length 64 [2019-10-13 22:07:16,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:07:16,728 INFO L462 AbstractCegarLoop]: Abstraction has 1171 states and 1476 transitions. [2019-10-13 22:07:16,729 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 22:07:16,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1476 transitions. [2019-10-13 22:07:16,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-13 22:07:16,732 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:07:16,732 INFO L380 BasicCegarLoop]: trace histogram [3, 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] [2019-10-13 22:07:16,733 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:07:16,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:07:16,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1115718217, now seen corresponding path program 1 times [2019-10-13 22:07:16,733 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:07:16,734 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339295726] [2019-10-13 22:07:16,734 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:07:16,734 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:07:16,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:07:17,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:07:17,250 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-13 22:07:17,251 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339295726] [2019-10-13 22:07:17,251 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:07:17,252 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 22:07:17,252 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875877647] [2019-10-13 22:07:17,253 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 22:07:17,254 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:07:17,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 22:07:17,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-10-13 22:07:17,255 INFO L87 Difference]: Start difference. First operand 1171 states and 1476 transitions. Second operand 9 states. [2019-10-13 22:07:21,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:07:21,185 INFO L93 Difference]: Finished difference Result 1447 states and 1824 transitions. [2019-10-13 22:07:21,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 22:07:21,186 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 72 [2019-10-13 22:07:21,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:07:21,200 INFO L225 Difference]: With dead ends: 1447 [2019-10-13 22:07:21,200 INFO L226 Difference]: Without dead ends: 1432 [2019-10-13 22:07:21,203 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-10-13 22:07:21,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2019-10-13 22:07:21,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1398. [2019-10-13 22:07:21,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1398 states. [2019-10-13 22:07:21,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 1749 transitions. [2019-10-13 22:07:21,332 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 1749 transitions. Word has length 72 [2019-10-13 22:07:21,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:07:21,332 INFO L462 AbstractCegarLoop]: Abstraction has 1398 states and 1749 transitions. [2019-10-13 22:07:21,333 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 22:07:21,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 1749 transitions. [2019-10-13 22:07:21,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-10-13 22:07:21,343 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:07:21,343 INFO L380 BasicCegarLoop]: trace histogram [3, 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] [2019-10-13 22:07:21,343 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:07:21,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:07:21,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1278779957, now seen corresponding path program 1 times [2019-10-13 22:07:21,344 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:07:21,345 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920556491] [2019-10-13 22:07:21,345 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:07:21,345 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:07:21,345 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:07:21,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:07:21,580 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 22:07:21,581 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920556491] [2019-10-13 22:07:21,581 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:07:21,582 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 22:07:21,582 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903365686] [2019-10-13 22:07:21,583 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 22:07:21,583 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:07:21,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 22:07:21,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:07:21,584 INFO L87 Difference]: Start difference. First operand 1398 states and 1749 transitions. Second operand 5 states. [2019-10-13 22:07:21,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:07:21,720 INFO L93 Difference]: Finished difference Result 2796 states and 3503 transitions. [2019-10-13 22:07:21,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 22:07:21,721 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 89 [2019-10-13 22:07:21,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:07:21,740 INFO L225 Difference]: With dead ends: 2796 [2019-10-13 22:07:21,740 INFO L226 Difference]: Without dead ends: 1406 [2019-10-13 22:07:21,748 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:07:21,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1406 states. [2019-10-13 22:07:21,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1406 to 1403. [2019-10-13 22:07:21,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1403 states. [2019-10-13 22:07:21,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 1753 transitions. [2019-10-13 22:07:21,863 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 1753 transitions. Word has length 89 [2019-10-13 22:07:21,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:07:21,864 INFO L462 AbstractCegarLoop]: Abstraction has 1403 states and 1753 transitions. [2019-10-13 22:07:21,864 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 22:07:21,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 1753 transitions. [2019-10-13 22:07:21,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-10-13 22:07:21,870 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:07:21,871 INFO L380 BasicCegarLoop]: trace histogram [3, 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] [2019-10-13 22:07:21,871 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:07:21,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:07:21,872 INFO L82 PathProgramCache]: Analyzing trace with hash -252832200, now seen corresponding path program 1 times [2019-10-13 22:07:21,872 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:07:21,872 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799727015] [2019-10-13 22:07:21,872 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:07:21,873 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:07:21,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:07:22,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:07:22,213 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-13 22:07:22,214 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799727015] [2019-10-13 22:07:22,214 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:07:22,214 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 22:07:22,214 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805959823] [2019-10-13 22:07:22,215 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 22:07:22,215 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:07:22,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 22:07:22,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-13 22:07:22,216 INFO L87 Difference]: Start difference. First operand 1403 states and 1753 transitions. Second operand 11 states. [2019-10-13 22:07:22,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:07:22,367 INFO L93 Difference]: Finished difference Result 2828 states and 3532 transitions. [2019-10-13 22:07:22,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 22:07:22,368 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 110 [2019-10-13 22:07:22,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:07:22,378 INFO L225 Difference]: With dead ends: 2828 [2019-10-13 22:07:22,378 INFO L226 Difference]: Without dead ends: 1423 [2019-10-13 22:07:22,385 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-13 22:07:22,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1423 states. [2019-10-13 22:07:22,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1423 to 1413. [2019-10-13 22:07:22,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1413 states. [2019-10-13 22:07:22,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1413 states to 1413 states and 1762 transitions. [2019-10-13 22:07:22,473 INFO L78 Accepts]: Start accepts. Automaton has 1413 states and 1762 transitions. Word has length 110 [2019-10-13 22:07:22,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:07:22,474 INFO L462 AbstractCegarLoop]: Abstraction has 1413 states and 1762 transitions. [2019-10-13 22:07:22,474 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 22:07:22,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 1762 transitions. [2019-10-13 22:07:22,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-13 22:07:22,478 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:07:22,478 INFO L380 BasicCegarLoop]: trace histogram [3, 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] [2019-10-13 22:07:22,478 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:07:22,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:07:22,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1497960156, now seen corresponding path program 1 times [2019-10-13 22:07:22,479 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:07:22,479 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661501297] [2019-10-13 22:07:22,479 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:07:22,480 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:07:22,480 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:07:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:07:22,700 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-13 22:07:22,700 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661501297] [2019-10-13 22:07:22,700 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:07:22,701 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 22:07:22,701 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224869666] [2019-10-13 22:07:22,701 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 22:07:22,702 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:07:22,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 22:07:22,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-13 22:07:22,702 INFO L87 Difference]: Start difference. First operand 1413 states and 1762 transitions. Second operand 8 states. [2019-10-13 22:07:23,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:07:23,005 INFO L93 Difference]: Finished difference Result 1446 states and 1797 transitions. [2019-10-13 22:07:23,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 22:07:23,005 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 114 [2019-10-13 22:07:23,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:07:23,014 INFO L225 Difference]: With dead ends: 1446 [2019-10-13 22:07:23,015 INFO L226 Difference]: Without dead ends: 1443 [2019-10-13 22:07:23,016 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-13 22:07:23,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2019-10-13 22:07:23,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1441. [2019-10-13 22:07:23,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1441 states. [2019-10-13 22:07:23,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1441 states to 1441 states and 1792 transitions. [2019-10-13 22:07:23,094 INFO L78 Accepts]: Start accepts. Automaton has 1441 states and 1792 transitions. Word has length 114 [2019-10-13 22:07:23,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:07:23,094 INFO L462 AbstractCegarLoop]: Abstraction has 1441 states and 1792 transitions. [2019-10-13 22:07:23,094 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 22:07:23,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1441 states and 1792 transitions. [2019-10-13 22:07:23,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-13 22:07:23,099 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:07:23,100 INFO L380 BasicCegarLoop]: trace histogram [3, 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] [2019-10-13 22:07:23,100 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:07:23,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:07:23,100 INFO L82 PathProgramCache]: Analyzing trace with hash -2059897439, now seen corresponding path program 1 times [2019-10-13 22:07:23,100 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:07:23,101 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433003037] [2019-10-13 22:07:23,101 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:07:23,101 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:07:23,101 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:07:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:07:23,282 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-13 22:07:23,283 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433003037] [2019-10-13 22:07:23,283 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:07:23,284 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 22:07:23,284 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664933656] [2019-10-13 22:07:23,285 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 22:07:23,285 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:07:23,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 22:07:23,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-13 22:07:23,286 INFO L87 Difference]: Start difference. First operand 1441 states and 1792 transitions. Second operand 8 states. [2019-10-13 22:07:23,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:07:23,951 INFO L93 Difference]: Finished difference Result 1501 states and 1851 transitions. [2019-10-13 22:07:23,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 22:07:23,952 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 121 [2019-10-13 22:07:23,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:07:23,963 INFO L225 Difference]: With dead ends: 1501 [2019-10-13 22:07:23,963 INFO L226 Difference]: Without dead ends: 1498 [2019-10-13 22:07:23,969 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-13 22:07:23,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2019-10-13 22:07:24,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1488. [2019-10-13 22:07:24,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1488 states. [2019-10-13 22:07:24,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 1838 transitions. [2019-10-13 22:07:24,050 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 1838 transitions. Word has length 121 [2019-10-13 22:07:24,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:07:24,052 INFO L462 AbstractCegarLoop]: Abstraction has 1488 states and 1838 transitions. [2019-10-13 22:07:24,052 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 22:07:24,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 1838 transitions. [2019-10-13 22:07:24,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-10-13 22:07:24,058 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:07:24,058 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 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] [2019-10-13 22:07:24,059 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:07:24,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:07:24,059 INFO L82 PathProgramCache]: Analyzing trace with hash -43065415, now seen corresponding path program 1 times [2019-10-13 22:07:24,059 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:07:24,060 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950633320] [2019-10-13 22:07:24,060 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:07:24,060 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:07:24,060 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:07:24,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:07:24,202 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-13 22:07:24,203 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950633320] [2019-10-13 22:07:24,203 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:07:24,203 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 22:07:24,203 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175597612] [2019-10-13 22:07:24,204 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 22:07:24,204 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:07:24,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 22:07:24,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 22:07:24,205 INFO L87 Difference]: Start difference. First operand 1488 states and 1838 transitions. Second operand 4 states. [2019-10-13 22:07:24,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:07:24,331 INFO L93 Difference]: Finished difference Result 3022 states and 3775 transitions. [2019-10-13 22:07:24,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 22:07:24,332 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 130 [2019-10-13 22:07:24,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:07:24,343 INFO L225 Difference]: With dead ends: 3022 [2019-10-13 22:07:24,343 INFO L226 Difference]: Without dead ends: 1552 [2019-10-13 22:07:24,350 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 22:07:24,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2019-10-13 22:07:24,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1552. [2019-10-13 22:07:24,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1552 states. [2019-10-13 22:07:24,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 1949 transitions. [2019-10-13 22:07:24,434 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 1949 transitions. Word has length 130 [2019-10-13 22:07:24,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:07:24,434 INFO L462 AbstractCegarLoop]: Abstraction has 1552 states and 1949 transitions. [2019-10-13 22:07:24,435 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 22:07:24,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 1949 transitions. [2019-10-13 22:07:24,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-13 22:07:24,441 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:07:24,441 INFO L380 BasicCegarLoop]: trace histogram [4, 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] [2019-10-13 22:07:24,442 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:07:24,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:07:24,442 INFO L82 PathProgramCache]: Analyzing trace with hash 2124567457, now seen corresponding path program 1 times [2019-10-13 22:07:24,442 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:07:24,442 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647813237] [2019-10-13 22:07:24,443 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:07:24,443 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:07:24,443 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:07:24,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:07:24,915 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 22:07:24,916 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647813237] [2019-10-13 22:07:24,916 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831729595] [2019-10-13 22:07:24,917 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:07:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:07:25,457 INFO L256 TraceCheckSpWp]: Trace formula consists of 1213 conjuncts, 35 conjunts are in the unsatisfiable core [2019-10-13 22:07:25,474 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:07:25,776 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-13 22:07:25,776 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:07:26,656 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:07:26,780 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-13 22:07:26,780 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 22:07:26,781 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10, 8] imperfect sequences [9] total 21 [2019-10-13 22:07:26,781 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723390750] [2019-10-13 22:07:26,782 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-13 22:07:26,782 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:07:26,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-13 22:07:26,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2019-10-13 22:07:26,783 INFO L87 Difference]: Start difference. First operand 1552 states and 1949 transitions. Second operand 15 states. [2019-10-13 22:07:28,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:07:28,919 INFO L93 Difference]: Finished difference Result 1876 states and 2389 transitions. [2019-10-13 22:07:28,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 22:07:28,920 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 136 [2019-10-13 22:07:28,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:07:28,936 INFO L225 Difference]: With dead ends: 1876 [2019-10-13 22:07:28,937 INFO L226 Difference]: Without dead ends: 1846 [2019-10-13 22:07:28,940 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=76, Invalid=386, Unknown=0, NotChecked=0, Total=462 [2019-10-13 22:07:28,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2019-10-13 22:07:29,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1791. [2019-10-13 22:07:29,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1791 states. [2019-10-13 22:07:29,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1791 states to 1791 states and 2265 transitions. [2019-10-13 22:07:29,089 INFO L78 Accepts]: Start accepts. Automaton has 1791 states and 2265 transitions. Word has length 136 [2019-10-13 22:07:29,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:07:29,092 INFO L462 AbstractCegarLoop]: Abstraction has 1791 states and 2265 transitions. [2019-10-13 22:07:29,093 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-13 22:07:29,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1791 states and 2265 transitions. [2019-10-13 22:07:29,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2019-10-13 22:07:29,102 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:07:29,102 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:07:29,312 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:07:29,313 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:07:29,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:07:29,314 INFO L82 PathProgramCache]: Analyzing trace with hash 2027297473, now seen corresponding path program 1 times [2019-10-13 22:07:29,314 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:07:29,314 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370927207] [2019-10-13 22:07:29,315 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:07:29,315 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:07:29,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY