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 0.1.24-13a467a-m [2019-10-15 02:09:19,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 02:09:19,453 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 02:09:19,465 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 02:09:19,466 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 02:09:19,467 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 02:09:19,468 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 02:09:19,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 02:09:19,472 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 02:09:19,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 02:09:19,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 02:09:19,474 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 02:09:19,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 02:09:19,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 02:09:19,477 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 02:09:19,478 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 02:09:19,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 02:09:19,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 02:09:19,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 02:09:19,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 02:09:19,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 02:09:19,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 02:09:19,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 02:09:19,495 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 02:09:19,498 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 02:09:19,499 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 02:09:19,499 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 02:09:19,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 02:09:19,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 02:09:19,502 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 02:09:19,503 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 02:09:19,504 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 02:09:19,505 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 02:09:19,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 02:09:19,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 02:09:19,508 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 02:09:19,510 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 02:09:19,511 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 02:09:19,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 02:09:19,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 02:09:19,514 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 02:09:19,515 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 02:09:19,539 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 02:09:19,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 02:09:19,542 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 02:09:19,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 02:09:19,542 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 02:09:19,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 02:09:19,543 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 02:09:19,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 02:09:19,543 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 02:09:19,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 02:09:19,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 02:09:19,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 02:09:19,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 02:09:19,545 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 02:09:19,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 02:09:19,546 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 02:09:19,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 02:09:19,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 02:09:19,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 02:09:19,547 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 02:09:19,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 02:09:19,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:09:19,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 02:09:19,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 02:09:19,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 02:09:19,548 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 02:09:19,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 02:09:19,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 02:09:19,549 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 [2019-10-15 02:09:19,821 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 02:09:19,834 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 02:09:19,838 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 02:09:19,840 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 02:09:19,840 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 02:09:19,841 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2019-10-15 02:09:19,902 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/822c0618c/1299c11f504f444195e016d9df75a4d8/FLAG5d363fc15 [2019-10-15 02:09:20,666 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 02:09:20,667 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2019-10-15 02:09:20,708 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/822c0618c/1299c11f504f444195e016d9df75a4d8/FLAG5d363fc15 [2019-10-15 02:09:21,187 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/822c0618c/1299c11f504f444195e016d9df75a4d8 [2019-10-15 02:09:21,196 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 02:09:21,198 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 02:09:21,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 02:09:21,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 02:09:21,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 02:09:21,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:09:21" (1/1) ... [2019-10-15 02:09:21,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a069adc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:09:21, skipping insertion in model container [2019-10-15 02:09:21,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:09:21" (1/1) ... [2019-10-15 02:09:21,211 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 02:09:21,309 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 02:09:22,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:09:22,954 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 02:09:23,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:09:23,645 INFO L192 MainTranslator]: Completed translation [2019-10-15 02:09:23,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:09:23 WrapperNode [2019-10-15 02:09:23,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 02:09:23,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 02:09:23,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 02:09:23,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 02:09:23,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:09:23" (1/1) ... [2019-10-15 02:09:23,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:09:23" (1/1) ... [2019-10-15 02:09:23,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:09:23" (1/1) ... [2019-10-15 02:09:23,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:09:23" (1/1) ... [2019-10-15 02:09:23,859 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:09:23" (1/1) ... [2019-10-15 02:09:23,873 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:09:23" (1/1) ... [2019-10-15 02:09:23,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:09:23" (1/1) ... [2019-10-15 02:09:23,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 02:09:23,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 02:09:23,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 02:09:23,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 02:09:23,932 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:09:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:09:24,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 02:09:24,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 02:09:24,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-15 02:09:24,032 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-15 02:09:24,032 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-10-15 02:09:24,034 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-15 02:09:24,035 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-15 02:09:24,035 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-15 02:09:24,036 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-15 02:09:24,036 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2019-10-15 02:09:24,036 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ia32_task [2019-10-15 02:09:24,038 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-10-15 02:09:24,039 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-15 02:09:24,039 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-15 02:09:24,039 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2019-10-15 02:09:24,039 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-15 02:09:24,043 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2019-10-15 02:09:24,044 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2019-10-15 02:09:24,044 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-15 02:09:24,044 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-15 02:09:24,044 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2019-10-15 02:09:24,045 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-10-15 02:09:24,045 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-10-15 02:09:24,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-15 02:09:24,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-15 02:09:24,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-15 02:09:24,045 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-15 02:09:24,046 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-15 02:09:24,046 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2019-10-15 02:09:24,046 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2019-10-15 02:09:24,046 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2019-10-15 02:09:24,046 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_events_per_packet [2019-10-15 02:09:24,046 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_min [2019-10-15 02:09:24,046 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_set_min [2019-10-15 02:09:24,047 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_max [2019-10-15 02:09:24,048 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_set_max [2019-10-15 02:09:24,048 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_set_fuzz [2019-10-15 02:09:24,048 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_flat [2019-10-15 02:09:24,048 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_set_flat [2019-10-15 02:09:24,048 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2019-10-15 02:09:24,048 INFO L138 BoogieDeclarations]: Found implementation of procedure is_x32_task [2019-10-15 02:09:24,049 INFO L138 BoogieDeclarations]: Found implementation of procedure is_compat_task [2019-10-15 02:09:24,049 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event_size [2019-10-15 02:09:24,049 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_dev_event [2019-10-15 02:09:24,049 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_alloc_id [2019-10-15 02:09:24,049 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_find [2019-10-15 02:09:24,049 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_reserve_slot [2019-10-15 02:09:24,049 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_done [2019-10-15 02:09:24,050 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_send [2019-10-15 02:09:24,050 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_submit [2019-10-15 02:09:24,050 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_flush_requests [2019-10-15 02:09:24,050 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_dev_set_gain [2019-10-15 02:09:24,050 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_dev_set_autocenter [2019-10-15 02:09:24,050 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_dev_playback [2019-10-15 02:09:24,051 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_dev_upload_effect [2019-10-15 02:09:24,051 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_dev_erase_effect [2019-10-15 02:09:24,051 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_destroy_device [2019-10-15 02:09:24,051 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_create_device [2019-10-15 02:09:24,051 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_open [2019-10-15 02:09:24,052 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_validate_absbits [2019-10-15 02:09:24,052 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_allocate_device [2019-10-15 02:09:24,052 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_setup_device [2019-10-15 02:09:24,052 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_inject_event [2019-10-15 02:09:24,053 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_write [2019-10-15 02:09:24,053 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_fetch_next_event [2019-10-15 02:09:24,053 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_events_to_user [2019-10-15 02:09:24,053 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_read [2019-10-15 02:09:24,053 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_poll [2019-10-15 02:09:24,053 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_release [2019-10-15 02:09:24,053 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_ff_upload_to_user [2019-10-15 02:09:24,054 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_ff_upload_from_user [2019-10-15 02:09:24,054 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_ioctl_handler [2019-10-15 02:09:24,054 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_ioctl [2019-10-15 02:09:24,055 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_compat_ioctl [2019-10-15 02:09:24,055 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_init [2019-10-15 02:09:24,055 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_exit [2019-10-15 02:09:24,056 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 02:09:24,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2019-10-15 02:09:24,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2019-10-15 02:09:24,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2019-10-15 02:09:24,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2019-10-15 02:09:24,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2019-10-15 02:09:24,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_6 [2019-10-15 02:09:24,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2019-10-15 02:09:24,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_8 [2019-10-15 02:09:24,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2019-10-15 02:09:24,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_10 [2019-10-15 02:09:24,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-10-15 02:09:24,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_12 [2019-10-15 02:09:24,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2019-10-15 02:09:24,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-15 02:09:24,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-15 02:09:24,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-10-15 02:09:24,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-10-15 02:09:24,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-10-15 02:09:24,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-10-15 02:09:24,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-15 02:09:24,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-10-15 02:09:24,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-10-15 02:09:24,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-15 02:09:24,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-15 02:09:24,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-10-15 02:09:24,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-10-15 02:09:24,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-15 02:09:24,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-15 02:09:24,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-10-15 02:09:24,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_uinput_device [2019-10-15 02:09:24,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_uinput_device [2019-10-15 02:09:24,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_uinput_device [2019-10-15 02:09:24,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_uinput_device [2019-10-15 02:09:24,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_uinput_device [2019-10-15 02:09:24,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_uinput_device [2019-10-15 02:09:24,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_uinput_device [2019-10-15 02:09:24,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-15 02:09:24,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-15 02:09:24,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-15 02:09:24,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-15 02:09:24,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-15 02:09:24,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-15 02:09:24,068 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-15 02:09:24,068 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-15 02:09:24,068 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-15 02:09:24,068 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2019-10-15 02:09:24,069 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-15 02:09:24,070 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2019-10-15 02:09:24,070 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2019-10-15 02:09:24,070 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-15 02:09:24,070 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-15 02:09:24,070 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2019-10-15 02:09:24,070 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-10-15 02:09:24,071 INFO L138 BoogieDeclarations]: Found implementation of procedure input_alloc_absinfo [2019-10-15 02:09:24,071 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2019-10-15 02:09:24,071 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event_from_user [2019-10-15 02:09:24,072 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event_to_user [2019-10-15 02:09:24,077 INFO L138 BoogieDeclarations]: Found implementation of procedure input_ff_create [2019-10-15 02:09:24,077 INFO L138 BoogieDeclarations]: Found implementation of procedure input_ff_destroy [2019-10-15 02:09:24,077 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2019-10-15 02:09:24,077 INFO L138 BoogieDeclarations]: Found implementation of procedure input_mt_init_slots [2019-10-15 02:09:24,078 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2019-10-15 02:09:24,079 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2019-10-15 02:09:24,079 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrndup [2019-10-15 02:09:24,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-10-15 02:09:24,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2019-10-15 02:09:24,080 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2019-10-15 02:09:24,088 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-15 02:09:24,088 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2019-10-15 02:09:24,089 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2019-10-15 02:09:24,089 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-15 02:09:24,089 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2019-10-15 02:09:24,089 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-10-15 02:09:24,089 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-15 02:09:24,089 INFO L138 BoogieDeclarations]: Found implementation of procedure nonseekable_open [2019-10-15 02:09:24,089 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2019-10-15 02:09:24,089 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-15 02:09:24,090 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-15 02:09:24,090 INFO L138 BoogieDeclarations]: Found implementation of procedure strndup_user [2019-10-15 02:09:24,090 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2019-10-15 02:09:24,090 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-10-15 02:09:24,091 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-15 02:09:24,091 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-15 02:09:24,091 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-15 02:09:24,091 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-15 02:09:24,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 02:09:24,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-15 02:09:24,092 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-15 02:09:24,092 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-10-15 02:09:24,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 02:09:24,092 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-15 02:09:24,092 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-15 02:09:24,092 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-15 02:09:24,093 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-15 02:09:24,093 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-15 02:09:24,093 INFO L130 BoogieDeclarations]: Found specification of procedure strndup_user [2019-10-15 02:09:24,093 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2019-10-15 02:09:24,093 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-15 02:09:24,093 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-15 02:09:24,093 INFO L130 BoogieDeclarations]: Found specification of procedure kstrndup [2019-10-15 02:09:24,093 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-10-15 02:09:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-15 02:09:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-15 02:09:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-15 02:09:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-10-15 02:09:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2019-10-15 02:09:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-15 02:09:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2019-10-15 02:09:24,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2019-10-15 02:09:24,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2019-10-15 02:09:24,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2019-10-15 02:09:24,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-10-15 02:09:24,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2019-10-15 02:09:24,096 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2019-10-15 02:09:24,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_6 [2019-10-15 02:09:24,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_8 [2019-10-15 02:09:24,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_10 [2019-10-15 02:09:24,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_12 [2019-10-15 02:09:24,097 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-15 02:09:24,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2019-10-15 02:09:24,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2019-10-15 02:09:24,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-10-15 02:09:24,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-10-15 02:09:24,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-10-15 02:09:24,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-10-15 02:09:24,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-10-15 02:09:24,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_uinput_device [2019-10-15 02:09:24,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_uinput_device [2019-10-15 02:09:24,099 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2019-10-15 02:09:24,099 INFO L130 BoogieDeclarations]: Found specification of procedure is_ia32_task [2019-10-15 02:09:24,099 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-10-15 02:09:24,099 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-15 02:09:24,100 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-15 02:09:24,100 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2019-10-15 02:09:24,100 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-15 02:09:24,100 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2019-10-15 02:09:24,100 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-15 02:09:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-15 02:09:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2019-10-15 02:09:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-15 02:09:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2019-10-15 02:09:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2019-10-15 02:09:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-15 02:09:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-15 02:09:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2019-10-15 02:09:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-10-15 02:09:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2019-10-15 02:09:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2019-10-15 02:09:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 02:09:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 02:09:24,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 02:09:24,104 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2019-10-15 02:09:24,104 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2019-10-15 02:09:24,104 INFO L130 BoogieDeclarations]: Found specification of procedure no_llseek [2019-10-15 02:09:24,104 INFO L130 BoogieDeclarations]: Found specification of procedure nonseekable_open [2019-10-15 02:09:24,105 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-15 02:09:24,105 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-15 02:09:24,105 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-15 02:09:24,105 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-15 02:09:24,106 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2019-10-15 02:09:24,106 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-15 02:09:24,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 02:09:24,106 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-15 02:09:24,106 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-10-15 02:09:24,107 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-10-15 02:09:24,107 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-15 02:09:24,107 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 02:09:24,107 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 02:09:24,107 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 02:09:24,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-15 02:09:24,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-15 02:09:24,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 02:09:24,108 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-15 02:09:24,108 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-15 02:09:24,109 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-15 02:09:24,109 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2019-10-15 02:09:24,109 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2019-10-15 02:09:24,109 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-15 02:09:24,109 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-15 02:09:24,109 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2019-10-15 02:09:24,109 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2019-10-15 02:09:24,110 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2019-10-15 02:09:24,110 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2019-10-15 02:09:24,111 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2019-10-15 02:09:24,116 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2019-10-15 02:09:24,116 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2019-10-15 02:09:24,116 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_events_per_packet [2019-10-15 02:09:24,116 INFO L130 BoogieDeclarations]: Found specification of procedure input_alloc_absinfo [2019-10-15 02:09:24,117 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_min [2019-10-15 02:09:24,117 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_set_min [2019-10-15 02:09:24,117 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_max [2019-10-15 02:09:24,117 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_set_max [2019-10-15 02:09:24,117 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_set_fuzz [2019-10-15 02:09:24,118 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_flat [2019-10-15 02:09:24,118 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_set_flat [2019-10-15 02:09:24,122 INFO L130 BoogieDeclarations]: Found specification of procedure input_ff_create [2019-10-15 02:09:24,123 INFO L130 BoogieDeclarations]: Found specification of procedure input_ff_destroy [2019-10-15 02:09:24,123 INFO L130 BoogieDeclarations]: Found specification of procedure input_mt_init_slots [2019-10-15 02:09:24,123 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2019-10-15 02:09:24,123 INFO L130 BoogieDeclarations]: Found specification of procedure is_x32_task [2019-10-15 02:09:24,123 INFO L130 BoogieDeclarations]: Found specification of procedure is_compat_task [2019-10-15 02:09:24,124 INFO L130 BoogieDeclarations]: Found specification of procedure input_event_size [2019-10-15 02:09:24,124 INFO L130 BoogieDeclarations]: Found specification of procedure input_event_from_user [2019-10-15 02:09:24,124 INFO L130 BoogieDeclarations]: Found specification of procedure input_event_to_user [2019-10-15 02:09:24,124 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_dev_event [2019-10-15 02:09:24,124 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_alloc_id [2019-10-15 02:09:24,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 02:09:24,125 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_find [2019-10-15 02:09:24,126 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_reserve_slot [2019-10-15 02:09:24,126 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_done [2019-10-15 02:09:24,126 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_send [2019-10-15 02:09:24,126 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_submit [2019-10-15 02:09:24,126 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_flush_requests [2019-10-15 02:09:24,127 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_dev_set_gain [2019-10-15 02:09:24,127 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_dev_set_autocenter [2019-10-15 02:09:24,127 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_dev_playback [2019-10-15 02:09:24,127 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_dev_upload_effect [2019-10-15 02:09:24,127 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_dev_erase_effect [2019-10-15 02:09:24,128 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_destroy_device [2019-10-15 02:09:24,128 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_create_device [2019-10-15 02:09:24,128 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_open [2019-10-15 02:09:24,128 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_validate_absbits [2019-10-15 02:09:24,128 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_allocate_device [2019-10-15 02:09:24,129 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_setup_device [2019-10-15 02:09:24,129 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_inject_event [2019-10-15 02:09:24,129 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_write [2019-10-15 02:09:24,129 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_fetch_next_event [2019-10-15 02:09:24,129 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_events_to_user [2019-10-15 02:09:24,130 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_read [2019-10-15 02:09:24,130 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_poll [2019-10-15 02:09:24,130 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_release [2019-10-15 02:09:24,130 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_ff_upload_to_user [2019-10-15 02:09:24,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-15 02:09:24,130 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_ff_upload_from_user [2019-10-15 02:09:24,131 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_ioctl_handler [2019-10-15 02:09:24,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-15 02:09:24,131 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_ioctl [2019-10-15 02:09:24,131 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_compat_ioctl [2019-10-15 02:09:24,131 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_init [2019-10-15 02:09:24,131 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_exit [2019-10-15 02:09:24,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-15 02:09:24,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-10-15 02:09:24,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-15 02:09:24,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2019-10-15 02:09:24,132 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 02:09:24,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-15 02:09:24,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-10-15 02:09:24,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-10-15 02:09:24,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-10-15 02:09:24,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-15 02:09:24,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-10-15 02:09:24,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-15 02:09:24,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-15 02:09:24,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-15 02:09:24,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-15 02:09:24,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_uinput_device [2019-10-15 02:09:24,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_uinput_device [2019-10-15 02:09:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_uinput_device [2019-10-15 02:09:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_uinput_device [2019-10-15 02:09:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_uinput_device [2019-10-15 02:09:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-15 02:09:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-15 02:09:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 02:09:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 02:09:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 02:09:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 02:09:24,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 02:09:24,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 02:09:24,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-15 02:09:24,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-15 02:09:24,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-15 02:09:24,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-15 02:09:35,417 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 02:09:35,417 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 02:09:35,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:09:35 BoogieIcfgContainer [2019-10-15 02:09:35,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 02:09:35,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 02:09:35,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 02:09:35,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 02:09:35,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:09:21" (1/3) ... [2019-10-15 02:09:35,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bdd6130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:09:35, skipping insertion in model container [2019-10-15 02:09:35,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:09:23" (2/3) ... [2019-10-15 02:09:35,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bdd6130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:09:35, skipping insertion in model container [2019-10-15 02:09:35,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:09:35" (3/3) ... [2019-10-15 02:09:35,430 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2019-10-15 02:09:35,438 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 02:09:35,447 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 02:09:35,456 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 02:09:35,494 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 02:09:35,495 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 02:09:35,495 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 02:09:35,495 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 02:09:35,495 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 02:09:35,495 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 02:09:35,495 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 02:09:35,496 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 02:09:35,547 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states. [2019-10-15 02:09:35,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-15 02:09:35,557 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:09:35,559 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] [2019-10-15 02:09:35,562 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:09:35,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:09:35,569 INFO L82 PathProgramCache]: Analyzing trace with hash -112171225, now seen corresponding path program 1 times [2019-10-15 02:09:35,578 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:09:35,579 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833108539] [2019-10-15 02:09:35,579 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:35,579 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:35,579 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:09:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:09:36,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:09:36,007 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833108539] [2019-10-15 02:09:36,008 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:09:36,008 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:09:36,009 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044240438] [2019-10-15 02:09:36,013 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:09:36,013 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:09:36,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:09:36,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:09:36,031 INFO L87 Difference]: Start difference. First operand 944 states. Second operand 3 states. [2019-10-15 02:09:36,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:09:36,298 INFO L93 Difference]: Finished difference Result 1556 states and 2029 transitions. [2019-10-15 02:09:36,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:09:36,300 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-10-15 02:09:36,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:09:36,324 INFO L225 Difference]: With dead ends: 1556 [2019-10-15 02:09:36,324 INFO L226 Difference]: Without dead ends: 780 [2019-10-15 02:09:36,337 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:09:36,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2019-10-15 02:09:36,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 780. [2019-10-15 02:09:36,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 780 states. [2019-10-15 02:09:36,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1000 transitions. [2019-10-15 02:09:36,541 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1000 transitions. Word has length 24 [2019-10-15 02:09:36,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:09:36,543 INFO L462 AbstractCegarLoop]: Abstraction has 780 states and 1000 transitions. [2019-10-15 02:09:36,543 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:09:36,543 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1000 transitions. [2019-10-15 02:09:36,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-15 02:09:36,549 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:09:36,549 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] [2019-10-15 02:09:36,549 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:09:36,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:09:36,550 INFO L82 PathProgramCache]: Analyzing trace with hash 817094501, now seen corresponding path program 1 times [2019-10-15 02:09:36,550 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:09:36,550 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62203279] [2019-10-15 02:09:36,551 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:36,551 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:36,551 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:09:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:09:36,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:09:36,649 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62203279] [2019-10-15 02:09:36,650 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:09:36,650 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:09:36,650 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142359241] [2019-10-15 02:09:36,653 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:09:36,653 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:09:36,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:09:36,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:09:36,654 INFO L87 Difference]: Start difference. First operand 780 states and 1000 transitions. Second operand 3 states. [2019-10-15 02:09:36,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:09:36,738 INFO L93 Difference]: Finished difference Result 782 states and 1001 transitions. [2019-10-15 02:09:36,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:09:36,739 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-10-15 02:09:36,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:09:36,750 INFO L225 Difference]: With dead ends: 782 [2019-10-15 02:09:36,750 INFO L226 Difference]: Without dead ends: 779 [2019-10-15 02:09:36,753 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:09:36,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2019-10-15 02:09:36,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 779. [2019-10-15 02:09:36,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 779 states. [2019-10-15 02:09:36,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 998 transitions. [2019-10-15 02:09:36,838 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 998 transitions. Word has length 25 [2019-10-15 02:09:36,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:09:36,838 INFO L462 AbstractCegarLoop]: Abstraction has 779 states and 998 transitions. [2019-10-15 02:09:36,839 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:09:36,839 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 998 transitions. [2019-10-15 02:09:36,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-15 02:09:36,840 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:09:36,840 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] [2019-10-15 02:09:36,841 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:09:36,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:09:36,841 INFO L82 PathProgramCache]: Analyzing trace with hash -440434198, now seen corresponding path program 1 times [2019-10-15 02:09:36,841 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:09:36,842 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814294860] [2019-10-15 02:09:36,842 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:36,842 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:36,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:09:36,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:09:36,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:09:36,947 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814294860] [2019-10-15 02:09:36,948 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:09:36,948 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:09:36,948 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899238248] [2019-10-15 02:09:36,949 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:09:36,949 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:09:36,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:09:36,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:09:36,950 INFO L87 Difference]: Start difference. First operand 779 states and 998 transitions. Second operand 3 states. [2019-10-15 02:09:37,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:09:37,053 INFO L93 Difference]: Finished difference Result 1025 states and 1301 transitions. [2019-10-15 02:09:37,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:09:37,054 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-10-15 02:09:37,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:09:37,063 INFO L225 Difference]: With dead ends: 1025 [2019-10-15 02:09:37,064 INFO L226 Difference]: Without dead ends: 1010 [2019-10-15 02:09:37,065 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:09:37,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2019-10-15 02:09:37,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 1010. [2019-10-15 02:09:37,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1010 states. [2019-10-15 02:09:37,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1282 transitions. [2019-10-15 02:09:37,132 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1282 transitions. Word has length 26 [2019-10-15 02:09:37,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:09:37,133 INFO L462 AbstractCegarLoop]: Abstraction has 1010 states and 1282 transitions. [2019-10-15 02:09:37,133 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:09:37,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1282 transitions. [2019-10-15 02:09:37,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-15 02:09:37,145 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:09:37,146 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] [2019-10-15 02:09:37,146 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:09:37,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:09:37,146 INFO L82 PathProgramCache]: Analyzing trace with hash 956393434, now seen corresponding path program 1 times [2019-10-15 02:09:37,146 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:09:37,147 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397536774] [2019-10-15 02:09:37,147 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:37,147 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:37,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:09:37,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:09:37,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 02:09:37,266 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397536774] [2019-10-15 02:09:37,266 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:09:37,266 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:09:37,267 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849597155] [2019-10-15 02:09:37,267 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:09:37,267 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:09:37,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:09:37,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:09:37,268 INFO L87 Difference]: Start difference. First operand 1010 states and 1282 transitions. Second operand 3 states. [2019-10-15 02:09:37,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:09:37,376 INFO L93 Difference]: Finished difference Result 2046 states and 2628 transitions. [2019-10-15 02:09:37,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:09:37,376 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2019-10-15 02:09:37,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:09:37,383 INFO L225 Difference]: With dead ends: 2046 [2019-10-15 02:09:37,383 INFO L226 Difference]: Without dead ends: 1054 [2019-10-15 02:09:37,388 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:09:37,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2019-10-15 02:09:37,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 1054. [2019-10-15 02:09:37,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1054 states. [2019-10-15 02:09:37,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1357 transitions. [2019-10-15 02:09:37,447 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1357 transitions. Word has length 54 [2019-10-15 02:09:37,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:09:37,447 INFO L462 AbstractCegarLoop]: Abstraction has 1054 states and 1357 transitions. [2019-10-15 02:09:37,448 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:09:37,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1357 transitions. [2019-10-15 02:09:37,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-10-15 02:09:37,450 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:09:37,450 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] [2019-10-15 02:09:37,450 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:09:37,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:09:37,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1647348691, now seen corresponding path program 1 times [2019-10-15 02:09:37,451 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:09:37,451 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715245916] [2019-10-15 02:09:37,451 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:37,451 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:37,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:09:37,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:09:37,659 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 02:09:37,660 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715245916] [2019-10-15 02:09:37,660 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:09:37,660 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 02:09:37,660 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894545723] [2019-10-15 02:09:37,661 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 02:09:37,661 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:09:37,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 02:09:37,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-15 02:09:37,662 INFO L87 Difference]: Start difference. First operand 1054 states and 1357 transitions. Second operand 8 states. [2019-10-15 02:09:38,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:09:38,672 INFO L93 Difference]: Finished difference Result 1174 states and 1479 transitions. [2019-10-15 02:09:38,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 02:09:38,673 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2019-10-15 02:09:38,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:09:38,683 INFO L225 Difference]: With dead ends: 1174 [2019-10-15 02:09:38,684 INFO L226 Difference]: Without dead ends: 1171 [2019-10-15 02:09:38,685 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 [2019-10-15 02:09:38,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states. [2019-10-15 02:09:38,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 1171. [2019-10-15 02:09:38,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1171 states. [2019-10-15 02:09:38,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1476 transitions. [2019-10-15 02:09:38,775 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1476 transitions. Word has length 64 [2019-10-15 02:09:38,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:09:38,776 INFO L462 AbstractCegarLoop]: Abstraction has 1171 states and 1476 transitions. [2019-10-15 02:09:38,776 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 02:09:38,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1476 transitions. [2019-10-15 02:09:38,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-15 02:09:38,783 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:09:38,783 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] [2019-10-15 02:09:38,784 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:09:38,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:09:38,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1115718217, now seen corresponding path program 1 times [2019-10-15 02:09:38,785 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:09:38,785 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066920004] [2019-10-15 02:09:38,785 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:38,785 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:38,786 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:09:38,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:09:39,158 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-15 02:09:39,159 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066920004] [2019-10-15 02:09:39,159 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:09:39,159 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 02:09:39,159 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291956470] [2019-10-15 02:09:39,160 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 02:09:39,160 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:09:39,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 02:09:39,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-10-15 02:09:39,161 INFO L87 Difference]: Start difference. First operand 1171 states and 1476 transitions. Second operand 9 states. [2019-10-15 02:09:43,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:09:43,000 INFO L93 Difference]: Finished difference Result 1447 states and 1824 transitions. [2019-10-15 02:09:43,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 02:09:43,001 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 72 [2019-10-15 02:09:43,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:09:43,010 INFO L225 Difference]: With dead ends: 1447 [2019-10-15 02:09:43,010 INFO L226 Difference]: Without dead ends: 1432 [2019-10-15 02:09:43,011 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 [2019-10-15 02:09:43,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2019-10-15 02:09:43,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1398. [2019-10-15 02:09:43,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1398 states. [2019-10-15 02:09:43,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 1749 transitions. [2019-10-15 02:09:43,086 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 1749 transitions. Word has length 72 [2019-10-15 02:09:43,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:09:43,087 INFO L462 AbstractCegarLoop]: Abstraction has 1398 states and 1749 transitions. [2019-10-15 02:09:43,087 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 02:09:43,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 1749 transitions. [2019-10-15 02:09:43,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-10-15 02:09:43,090 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:09:43,090 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] [2019-10-15 02:09:43,091 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:09:43,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:09:43,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1278779957, now seen corresponding path program 1 times [2019-10-15 02:09:43,091 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:09:43,091 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067580028] [2019-10-15 02:09:43,092 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:43,092 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:43,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:09:43,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:09:43,189 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 02:09:43,189 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067580028] [2019-10-15 02:09:43,190 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:09:43,190 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 02:09:43,190 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954282163] [2019-10-15 02:09:43,191 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 02:09:43,191 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:09:43,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 02:09:43,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:09:43,192 INFO L87 Difference]: Start difference. First operand 1398 states and 1749 transitions. Second operand 5 states. [2019-10-15 02:09:43,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:09:43,276 INFO L93 Difference]: Finished difference Result 2796 states and 3503 transitions. [2019-10-15 02:09:43,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 02:09:43,277 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 89 [2019-10-15 02:09:43,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:09:43,287 INFO L225 Difference]: With dead ends: 2796 [2019-10-15 02:09:43,287 INFO L226 Difference]: Without dead ends: 1406 [2019-10-15 02:09:43,294 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 [2019-10-15 02:09:43,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1406 states. [2019-10-15 02:09:43,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1406 to 1403. [2019-10-15 02:09:43,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1403 states. [2019-10-15 02:09:43,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 1753 transitions. [2019-10-15 02:09:43,383 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 1753 transitions. Word has length 89 [2019-10-15 02:09:43,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:09:43,384 INFO L462 AbstractCegarLoop]: Abstraction has 1403 states and 1753 transitions. [2019-10-15 02:09:43,384 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 02:09:43,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 1753 transitions. [2019-10-15 02:09:43,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-10-15 02:09:43,389 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:09:43,389 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] [2019-10-15 02:09:43,389 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:09:43,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:09:43,389 INFO L82 PathProgramCache]: Analyzing trace with hash -252832200, now seen corresponding path program 1 times [2019-10-15 02:09:43,390 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:09:43,390 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729983000] [2019-10-15 02:09:43,390 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:43,390 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:43,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:09:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:09:43,760 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-15 02:09:43,760 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729983000] [2019-10-15 02:09:43,760 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:09:43,761 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 02:09:43,761 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069720850] [2019-10-15 02:09:43,761 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 02:09:43,762 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:09:43,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 02:09:43,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-15 02:09:43,762 INFO L87 Difference]: Start difference. First operand 1403 states and 1753 transitions. Second operand 11 states. [2019-10-15 02:09:43,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:09:43,937 INFO L93 Difference]: Finished difference Result 2828 states and 3532 transitions. [2019-10-15 02:09:43,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 02:09:43,938 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 110 [2019-10-15 02:09:43,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:09:43,951 INFO L225 Difference]: With dead ends: 2828 [2019-10-15 02:09:43,951 INFO L226 Difference]: Without dead ends: 1423 [2019-10-15 02:09:43,958 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 [2019-10-15 02:09:43,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1423 states. [2019-10-15 02:09:44,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1423 to 1413. [2019-10-15 02:09:44,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1413 states. [2019-10-15 02:09:44,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1413 states to 1413 states and 1762 transitions. [2019-10-15 02:09:44,064 INFO L78 Accepts]: Start accepts. Automaton has 1413 states and 1762 transitions. Word has length 110 [2019-10-15 02:09:44,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:09:44,065 INFO L462 AbstractCegarLoop]: Abstraction has 1413 states and 1762 transitions. [2019-10-15 02:09:44,065 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 02:09:44,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 1762 transitions. [2019-10-15 02:09:44,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-15 02:09:44,069 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:09:44,069 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] [2019-10-15 02:09:44,070 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:09:44,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:09:44,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1497960156, now seen corresponding path program 1 times [2019-10-15 02:09:44,070 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:09:44,071 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622878729] [2019-10-15 02:09:44,071 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:44,071 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:44,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:09:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:09:44,377 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-15 02:09:44,378 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622878729] [2019-10-15 02:09:44,379 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:09:44,379 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 02:09:44,379 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688271605] [2019-10-15 02:09:44,380 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 02:09:44,380 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:09:44,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 02:09:44,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-15 02:09:44,381 INFO L87 Difference]: Start difference. First operand 1413 states and 1762 transitions. Second operand 8 states. [2019-10-15 02:09:44,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:09:44,723 INFO L93 Difference]: Finished difference Result 1446 states and 1797 transitions. [2019-10-15 02:09:44,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 02:09:44,723 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 114 [2019-10-15 02:09:44,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:09:44,732 INFO L225 Difference]: With dead ends: 1446 [2019-10-15 02:09:44,733 INFO L226 Difference]: Without dead ends: 1443 [2019-10-15 02:09:44,734 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-15 02:09:44,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2019-10-15 02:09:44,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1441. [2019-10-15 02:09:44,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1441 states. [2019-10-15 02:09:44,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1441 states to 1441 states and 1792 transitions. [2019-10-15 02:09:44,800 INFO L78 Accepts]: Start accepts. Automaton has 1441 states and 1792 transitions. Word has length 114 [2019-10-15 02:09:44,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:09:44,801 INFO L462 AbstractCegarLoop]: Abstraction has 1441 states and 1792 transitions. [2019-10-15 02:09:44,801 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 02:09:44,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1441 states and 1792 transitions. [2019-10-15 02:09:44,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-15 02:09:44,804 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:09:44,805 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] [2019-10-15 02:09:44,805 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:09:44,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:09:44,805 INFO L82 PathProgramCache]: Analyzing trace with hash -2059897439, now seen corresponding path program 1 times [2019-10-15 02:09:44,806 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:09:44,806 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244073738] [2019-10-15 02:09:44,806 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:44,806 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:44,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:09:44,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:09:44,966 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-15 02:09:44,967 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244073738] [2019-10-15 02:09:44,967 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:09:44,967 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 02:09:44,967 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736149519] [2019-10-15 02:09:44,968 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 02:09:44,968 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:09:44,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 02:09:44,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-15 02:09:44,969 INFO L87 Difference]: Start difference. First operand 1441 states and 1792 transitions. Second operand 8 states. [2019-10-15 02:09:45,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:09:45,593 INFO L93 Difference]: Finished difference Result 1501 states and 1851 transitions. [2019-10-15 02:09:45,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 02:09:45,594 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 121 [2019-10-15 02:09:45,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:09:45,603 INFO L225 Difference]: With dead ends: 1501 [2019-10-15 02:09:45,603 INFO L226 Difference]: Without dead ends: 1498 [2019-10-15 02:09:45,604 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 [2019-10-15 02:09:45,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2019-10-15 02:09:45,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1488. [2019-10-15 02:09:45,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1488 states. [2019-10-15 02:09:45,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 1838 transitions. [2019-10-15 02:09:45,669 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 1838 transitions. Word has length 121 [2019-10-15 02:09:45,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:09:45,669 INFO L462 AbstractCegarLoop]: Abstraction has 1488 states and 1838 transitions. [2019-10-15 02:09:45,669 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 02:09:45,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 1838 transitions. [2019-10-15 02:09:45,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-10-15 02:09:45,674 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:09:45,675 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] [2019-10-15 02:09:45,675 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:09:45,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:09:45,675 INFO L82 PathProgramCache]: Analyzing trace with hash -43065415, now seen corresponding path program 1 times [2019-10-15 02:09:45,676 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:09:45,676 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621827259] [2019-10-15 02:09:45,676 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:45,676 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:45,676 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:09:45,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:09:45,773 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-15 02:09:45,773 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621827259] [2019-10-15 02:09:45,773 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:09:45,774 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 02:09:45,774 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622327106] [2019-10-15 02:09:45,774 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 02:09:45,774 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:09:45,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 02:09:45,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 02:09:45,775 INFO L87 Difference]: Start difference. First operand 1488 states and 1838 transitions. Second operand 4 states. [2019-10-15 02:09:45,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:09:45,881 INFO L93 Difference]: Finished difference Result 3022 states and 3775 transitions. [2019-10-15 02:09:45,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 02:09:45,882 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 130 [2019-10-15 02:09:45,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:09:45,890 INFO L225 Difference]: With dead ends: 3022 [2019-10-15 02:09:45,890 INFO L226 Difference]: Without dead ends: 1552 [2019-10-15 02:09:45,896 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 [2019-10-15 02:09:45,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2019-10-15 02:09:45,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1552. [2019-10-15 02:09:45,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1552 states. [2019-10-15 02:09:45,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 1949 transitions. [2019-10-15 02:09:45,961 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 1949 transitions. Word has length 130 [2019-10-15 02:09:45,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:09:45,962 INFO L462 AbstractCegarLoop]: Abstraction has 1552 states and 1949 transitions. [2019-10-15 02:09:45,962 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 02:09:45,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 1949 transitions. [2019-10-15 02:09:45,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-15 02:09:45,967 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:09:45,967 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] [2019-10-15 02:09:45,968 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:09:45,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:09:45,968 INFO L82 PathProgramCache]: Analyzing trace with hash 2124567457, now seen corresponding path program 1 times [2019-10-15 02:09:45,968 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:09:45,969 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990143646] [2019-10-15 02:09:45,969 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:45,969 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:45,969 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:09:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:09:46,329 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 02:09:46,329 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990143646] [2019-10-15 02:09:46,330 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557983487] [2019-10-15 02:09:46,330 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 [2019-10-15 02:09:46,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:09:46,930 INFO L256 TraceCheckSpWp]: Trace formula consists of 1213 conjuncts, 35 conjunts are in the unsatisfiable core [2019-10-15 02:09:46,951 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:09:47,276 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-15 02:09:47,277 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 02:09:48,326 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:09:48,477 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-15 02:09:48,478 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 02:09:48,478 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10, 8] imperfect sequences [9] total 21 [2019-10-15 02:09:48,478 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778737767] [2019-10-15 02:09:48,479 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-15 02:09:48,479 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:09:48,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-15 02:09:48,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2019-10-15 02:09:48,480 INFO L87 Difference]: Start difference. First operand 1552 states and 1949 transitions. Second operand 15 states. [2019-10-15 02:09:50,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:09:50,698 INFO L93 Difference]: Finished difference Result 1876 states and 2389 transitions. [2019-10-15 02:09:50,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 02:09:50,699 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 136 [2019-10-15 02:09:50,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:09:50,712 INFO L225 Difference]: With dead ends: 1876 [2019-10-15 02:09:50,712 INFO L226 Difference]: Without dead ends: 1846 [2019-10-15 02:09:50,714 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 [2019-10-15 02:09:50,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2019-10-15 02:09:50,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1791. [2019-10-15 02:09:50,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1791 states. [2019-10-15 02:09:50,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1791 states to 1791 states and 2265 transitions. [2019-10-15 02:09:50,805 INFO L78 Accepts]: Start accepts. Automaton has 1791 states and 2265 transitions. Word has length 136 [2019-10-15 02:09:50,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:09:50,806 INFO L462 AbstractCegarLoop]: Abstraction has 1791 states and 2265 transitions. [2019-10-15 02:09:50,806 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-15 02:09:50,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1791 states and 2265 transitions. [2019-10-15 02:09:50,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2019-10-15 02:09:50,812 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:09:50,813 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] [2019-10-15 02:09:51,020 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:09:51,020 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:09:51,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:09:51,021 INFO L82 PathProgramCache]: Analyzing trace with hash 2027297473, now seen corresponding path program 1 times [2019-10-15 02:09:51,021 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:09:51,022 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171844451] [2019-10-15 02:09:51,022 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:51,022 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:51,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:09:51,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:09:51,209 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-15 02:09:51,209 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171844451] [2019-10-15 02:09:51,211 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:09:51,211 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 02:09:51,212 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271376186] [2019-10-15 02:09:51,212 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 02:09:51,213 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:09:51,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 02:09:51,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 02:09:51,214 INFO L87 Difference]: Start difference. First operand 1791 states and 2265 transitions. Second operand 4 states. [2019-10-15 02:09:51,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:09:51,397 INFO L93 Difference]: Finished difference Result 3648 states and 4659 transitions. [2019-10-15 02:09:51,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 02:09:51,398 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 137 [2019-10-15 02:09:51,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:09:51,412 INFO L225 Difference]: With dead ends: 3648 [2019-10-15 02:09:51,412 INFO L226 Difference]: Without dead ends: 1875 [2019-10-15 02:09:51,419 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 [2019-10-15 02:09:51,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1875 states. [2019-10-15 02:09:51,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1875 to 1875. [2019-10-15 02:09:51,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1875 states. [2019-10-15 02:09:51,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1875 states to 1875 states and 2409 transitions. [2019-10-15 02:09:51,514 INFO L78 Accepts]: Start accepts. Automaton has 1875 states and 2409 transitions. Word has length 137 [2019-10-15 02:09:51,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:09:51,515 INFO L462 AbstractCegarLoop]: Abstraction has 1875 states and 2409 transitions. [2019-10-15 02:09:51,515 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 02:09:51,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1875 states and 2409 transitions. [2019-10-15 02:09:51,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-10-15 02:09:51,525 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:09:51,525 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:09:51,525 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:09:51,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:09:51,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1276845299, now seen corresponding path program 1 times [2019-10-15 02:09:51,526 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:09:51,526 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129903105] [2019-10-15 02:09:51,526 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:51,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:51,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:09:51,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:09:51,683 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 02:09:51,684 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129903105] [2019-10-15 02:09:51,684 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094270966] [2019-10-15 02:09:51,684 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:09:52,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:09:52,311 INFO L256 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 02:09:52,318 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:09:52,360 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-15 02:09:52,360 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 02:09:52,546 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 02:09:52,546 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1870581455] [2019-10-15 02:09:52,581 INFO L162 IcfgInterpreter]: Started Sifa with 119 locations of interest [2019-10-15 02:09:52,581 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 02:09:52,589 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 02:09:52,598 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 02:09:52,598 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs