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-linux-3.0/usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 02:10:28,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 02:10:28,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 02:10:28,320 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 02:10:28,320 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 02:10:28,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 02:10:28,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 02:10:28,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 02:10:28,336 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 02:10:28,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 02:10:28,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 02:10:28,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 02:10:28,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 02:10:28,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 02:10:28,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 02:10:28,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 02:10:28,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 02:10:28,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 02:10:28,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 02:10:28,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 02:10:28,347 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 02:10:28,348 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 02:10:28,349 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 02:10:28,350 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 02:10:28,352 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 02:10:28,352 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 02:10:28,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 02:10:28,353 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 02:10:28,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 02:10:28,354 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 02:10:28,355 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 02:10:28,356 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 02:10:28,357 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 02:10:28,357 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 02:10:28,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 02:10:28,358 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 02:10:28,359 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 02:10:28,359 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 02:10:28,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 02:10:28,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 02:10:28,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 02:10:28,362 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 02:10:28,375 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 02:10:28,376 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 02:10:28,377 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 02:10:28,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 02:10:28,377 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 02:10:28,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 02:10:28,378 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 02:10:28,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 02:10:28,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 02:10:28,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 02:10:28,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 02:10:28,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 02:10:28,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 02:10:28,379 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 02:10:28,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 02:10:28,379 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 02:10:28,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 02:10:28,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 02:10:28,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 02:10:28,380 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 02:10:28,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 02:10:28,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:10:28,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 02:10:28,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 02:10:28,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 02:10:28,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 02:10:28,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 02:10:28,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 02:10:28,382 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 02:10:28,678 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 02:10:28,695 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 02:10:28,698 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 02:10:28,699 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 02:10:28,699 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 02:10:28,700 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i [2019-10-15 02:10:28,755 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5d447952/676c188748b34a2d950114ae0676ec45/FLAG7f9821fe9 [2019-10-15 02:10:29,458 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 02:10:29,459 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i [2019-10-15 02:10:29,501 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5d447952/676c188748b34a2d950114ae0676ec45/FLAG7f9821fe9 [2019-10-15 02:10:29,554 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5d447952/676c188748b34a2d950114ae0676ec45 [2019-10-15 02:10:29,562 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 02:10:29,563 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 02:10:29,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 02:10:29,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 02:10:29,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 02:10:29,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:10:29" (1/1) ... [2019-10-15 02:10:29,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7296636c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:10:29, skipping insertion in model container [2019-10-15 02:10:29,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:10:29" (1/1) ... [2019-10-15 02:10:29,579 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 02:10:29,667 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 02:10:30,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:10:31,028 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 02:10:31,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:10:31,543 INFO L192 MainTranslator]: Completed translation [2019-10-15 02:10:31,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:10:31 WrapperNode [2019-10-15 02:10:31,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 02:10:31,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 02:10:31,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 02:10:31,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 02:10:31,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:10:31" (1/1) ... [2019-10-15 02:10:31,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:10:31" (1/1) ... [2019-10-15 02:10:31,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:10:31" (1/1) ... [2019-10-15 02:10:31,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:10:31" (1/1) ... [2019-10-15 02:10:31,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:10:31" (1/1) ... [2019-10-15 02:10:31,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:10:31" (1/1) ... [2019-10-15 02:10:31,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:10:31" (1/1) ... [2019-10-15 02:10:31,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 02:10:31,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 02:10:31,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 02:10:31,856 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 02:10:31,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:10:31" (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 02:10:31,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 02:10:31,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 02:10:31,957 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-15 02:10:31,957 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-15 02:10:31,957 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-10-15 02:10:31,958 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-10-15 02:10:31,958 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-15 02:10:31,959 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-15 02:10:31,959 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2019-10-15 02:10:31,959 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-15 02:10:31,960 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-15 02:10:31,960 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-10-15 02:10:31,961 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2019-10-15 02:10:31,961 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2019-10-15 02:10:31,961 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-10-15 02:10:31,961 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-10-15 02:10:31,963 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2019-10-15 02:10:31,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-15 02:10:31,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_int_must_check_helper [2019-10-15 02:10:31,964 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_buffer_init [2019-10-15 02:10:31,964 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_buffer_free [2019-10-15 02:10:31,964 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_buffer_write [2019-10-15 02:10:31,964 INFO L138 BoogieDeclarations]: Found implementation of procedure free_imon_context [2019-10-15 02:10:31,965 INFO L138 BoogieDeclarations]: Found implementation of procedure deregister_from_lirc [2019-10-15 02:10:31,965 INFO L138 BoogieDeclarations]: Found implementation of procedure display_open [2019-10-15 02:10:31,966 INFO L138 BoogieDeclarations]: Found implementation of procedure display_close [2019-10-15 02:10:31,966 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2019-10-15 02:10:31,966 INFO L138 BoogieDeclarations]: Found implementation of procedure vfd_write [2019-10-15 02:10:31,966 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_tx_callback [2019-10-15 02:10:31,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_open [2019-10-15 02:10:31,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_close [2019-10-15 02:10:31,966 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_data [2019-10-15 02:10:31,967 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_incoming_packet [2019-10-15 02:10:31,967 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_rx_callback [2019-10-15 02:10:31,967 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_probe [2019-10-15 02:10:31,967 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_disconnect [2019-10-15 02:10:31,968 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_suspend [2019-10-15 02:10:31,968 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_resume [2019-10-15 02:10:31,968 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_init [2019-10-15 02:10:31,968 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_exit [2019-10-15 02:10:31,968 INFO L138 BoogieDeclarations]: Found implementation of procedure init_module [2019-10-15 02:10:31,968 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_module [2019-10-15 02:10:31,968 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 02:10:31,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-10-15 02:10:31,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2019-10-15 02:10:31,969 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-10-15 02:10:31,969 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-10-15 02:10:31,969 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-10-15 02:10:31,969 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-10-15 02:10:31,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-15 02:10:31,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-15 02:10:31,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_alloc [2019-10-15 02:10:31,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_free [2019-10-15 02:10:31,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_in [2019-10-15 02:10:31,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_in_r [2019-10-15 02:10:31,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-15 02:10:31,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-15 02:10:31,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-15 02:10:31,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-15 02:10:31,971 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-15 02:10:31,971 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-15 02:10:31,972 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-15 02:10:31,972 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2019-10-15 02:10:31,972 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_all [2019-10-15 02:10:31,972 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-15 02:10:31,972 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2019-10-15 02:10:31,972 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-15 02:10:31,972 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2019-10-15 02:10:31,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-10-15 02:10:31,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-15 02:10:31,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2019-10-15 02:10:31,973 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_register_driver [2019-10-15 02:10:31,973 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_unregister_driver [2019-10-15 02:10:31,974 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2019-10-15 02:10:31,974 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-15 02:10:31,974 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-15 02:10:31,975 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-15 02:10:31,975 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-15 02:10:31,976 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2019-10-15 02:10:31,976 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_interface [2019-10-15 02:10:31,976 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2019-10-15 02:10:31,977 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-10-15 02:10:31,977 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_match_id [2019-10-15 02:10:31,977 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2019-10-15 02:10:31,977 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-15 02:10:31,977 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2019-10-15 02:10:31,977 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_interruptible [2019-10-15 02:10:31,978 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-10-15 02:10:31,978 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-15 02:10:31,978 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-15 02:10:31,979 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-15 02:10:31,979 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2019-10-15 02:10:31,979 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 02:10:31,979 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-15 02:10:31,979 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-10-15 02:10:31,979 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2019-10-15 02:10:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-15 02:10:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2019-10-15 02:10:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-15 02:10:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-15 02:10:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-10-15 02:10:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 02:10:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-10-15 02:10:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 02:10:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-15 02:10:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-15 02:10:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-15 02:10:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-15 02:10:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-15 02:10:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-15 02:10:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-15 02:10:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-15 02:10:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-15 02:10:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-15 02:10:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2019-10-15 02:10:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_interruptible [2019-10-15 02:10:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2019-10-15 02:10:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure complete_all [2019-10-15 02:10:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-15 02:10:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure init_module [2019-10-15 02:10:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_module [2019-10-15 02:10:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-15 02:10:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-15 02:10:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-15 02:10:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-15 02:10:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-15 02:10:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2019-10-15 02:10:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2019-10-15 02:10:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-15 02:10:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-10-15 02:10:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-10-15 02:10:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2019-10-15 02:10:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2019-10-15 02:10:31,988 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-10-15 02:10:31,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 02:10:31,991 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2019-10-15 02:10:31,991 INFO L130 BoogieDeclarations]: Found specification of procedure usb_match_id [2019-10-15 02:10:31,991 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_interface [2019-10-15 02:10:31,992 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-15 02:10:31,992 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-10-15 02:10:31,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 02:10:31,992 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-15 02:10:31,992 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2019-10-15 02:10:31,993 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2019-10-15 02:10:31,999 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2019-10-15 02:10:32,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 02:10:32,000 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-10-15 02:10:32,000 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-10-15 02:10:32,000 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2019-10-15 02:10:32,000 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-10-15 02:10:32,000 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-10-15 02:10:32,000 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-10-15 02:10:32,001 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-15 02:10:32,001 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_int_must_check_helper [2019-10-15 02:10:32,001 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_alloc [2019-10-15 02:10:32,001 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_free [2019-10-15 02:10:32,001 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_in [2019-10-15 02:10:32,002 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_in_r [2019-10-15 02:10:32,002 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_buffer_init [2019-10-15 02:10:32,002 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_buffer_free [2019-10-15 02:10:32,002 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_buffer_write [2019-10-15 02:10:32,002 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_register_driver [2019-10-15 02:10:32,002 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_unregister_driver [2019-10-15 02:10:32,002 INFO L130 BoogieDeclarations]: Found specification of procedure imon_probe [2019-10-15 02:10:32,003 INFO L130 BoogieDeclarations]: Found specification of procedure imon_disconnect [2019-10-15 02:10:32,003 INFO L130 BoogieDeclarations]: Found specification of procedure usb_rx_callback [2019-10-15 02:10:32,003 INFO L130 BoogieDeclarations]: Found specification of procedure usb_tx_callback [2019-10-15 02:10:32,003 INFO L130 BoogieDeclarations]: Found specification of procedure imon_resume [2019-10-15 02:10:32,003 INFO L130 BoogieDeclarations]: Found specification of procedure imon_suspend [2019-10-15 02:10:32,003 INFO L130 BoogieDeclarations]: Found specification of procedure display_open [2019-10-15 02:10:32,003 INFO L130 BoogieDeclarations]: Found specification of procedure display_close [2019-10-15 02:10:32,003 INFO L130 BoogieDeclarations]: Found specification of procedure vfd_write [2019-10-15 02:10:32,004 INFO L130 BoogieDeclarations]: Found specification of procedure ir_open [2019-10-15 02:10:32,004 INFO L130 BoogieDeclarations]: Found specification of procedure ir_close [2019-10-15 02:10:32,004 INFO L130 BoogieDeclarations]: Found specification of procedure imon_init [2019-10-15 02:10:32,004 INFO L130 BoogieDeclarations]: Found specification of procedure imon_exit [2019-10-15 02:10:32,004 INFO L130 BoogieDeclarations]: Found specification of procedure free_imon_context [2019-10-15 02:10:32,004 INFO L130 BoogieDeclarations]: Found specification of procedure deregister_from_lirc [2019-10-15 02:10:32,004 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2019-10-15 02:10:32,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-15 02:10:32,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 02:10:32,005 INFO L130 BoogieDeclarations]: Found specification of procedure submit_data [2019-10-15 02:10:32,005 INFO L130 BoogieDeclarations]: Found specification of procedure imon_incoming_packet [2019-10-15 02:10:32,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2019-10-15 02:10:32,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-15 02:10:32,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-10-15 02:10:32,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-15 02:10:32,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 02:10:32,006 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 02:10:32,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-10-15 02:10:32,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2019-10-15 02:10:32,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2019-10-15 02:10:32,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-15 02:10:32,007 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-15 02:10:32,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-15 02:10:32,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 02:10:32,007 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 02:10:32,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 02:10:32,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 02:10:32,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 02:10:32,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 02:10:32,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-15 02:10:32,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-15 02:10:32,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-15 02:10:32,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-15 02:10:33,678 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2019-10-15 02:10:39,678 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 02:10:39,700 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-10-15 02:10:39,700 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-10-15 02:10:39,839 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 02:10:39,886 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume !false; [2019-10-15 02:10:39,886 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume false; [2019-10-15 02:10:46,472 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 02:10:46,473 INFO L284 CfgBuilder]: Removed 40 assume(true) statements. [2019-10-15 02:10:46,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:10:46 BoogieIcfgContainer [2019-10-15 02:10:46,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 02:10:46,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 02:10:46,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 02:10:46,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 02:10:46,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:10:29" (1/3) ... [2019-10-15 02:10:46,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70048163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:10:46, skipping insertion in model container [2019-10-15 02:10:46,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:10:31" (2/3) ... [2019-10-15 02:10:46,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70048163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:10:46, skipping insertion in model container [2019-10-15 02:10:46,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:10:46" (3/3) ... [2019-10-15 02:10:46,482 INFO L109 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i [2019-10-15 02:10:46,491 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 02:10:46,500 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 02:10:46,511 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 02:10:46,540 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 02:10:46,540 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 02:10:46,541 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 02:10:46,541 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 02:10:46,541 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 02:10:46,541 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 02:10:46,541 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 02:10:46,541 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 02:10:46,570 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states. [2019-10-15 02:10:46,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-15 02:10:46,577 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:10:46,577 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 02:10:46,580 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:10:46,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:10:46,585 INFO L82 PathProgramCache]: Analyzing trace with hash 86399700, now seen corresponding path program 1 times [2019-10-15 02:10:46,594 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:10:46,595 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767686237] [2019-10-15 02:10:46,595 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:46,595 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:46,595 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:10:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:10:47,312 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 02:10:47,313 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767686237] [2019-10-15 02:10:47,314 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:10:47,314 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:10:47,314 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274751544] [2019-10-15 02:10:47,319 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:10:47,319 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:10:47,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:10:47,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:10:47,336 INFO L87 Difference]: Start difference. First operand 555 states. Second operand 3 states. [2019-10-15 02:10:47,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:10:47,496 INFO L93 Difference]: Finished difference Result 925 states and 1229 transitions. [2019-10-15 02:10:47,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:10:47,498 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-10-15 02:10:47,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:10:47,520 INFO L225 Difference]: With dead ends: 925 [2019-10-15 02:10:47,520 INFO L226 Difference]: Without dead ends: 595 [2019-10-15 02:10:47,529 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:10:47,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2019-10-15 02:10:47,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 591. [2019-10-15 02:10:47,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2019-10-15 02:10:47,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 740 transitions. [2019-10-15 02:10:47,657 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 740 transitions. Word has length 25 [2019-10-15 02:10:47,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:10:47,658 INFO L462 AbstractCegarLoop]: Abstraction has 591 states and 740 transitions. [2019-10-15 02:10:47,658 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:10:47,658 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 740 transitions. [2019-10-15 02:10:47,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-15 02:10:47,659 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:10:47,659 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 02:10:47,659 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:10:47,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:10:47,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1616917055, now seen corresponding path program 1 times [2019-10-15 02:10:47,660 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:10:47,660 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512033913] [2019-10-15 02:10:47,660 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:47,660 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:47,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:10:47,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:10:47,912 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 02:10:47,913 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512033913] [2019-10-15 02:10:47,913 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:10:47,913 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:10:47,913 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243462089] [2019-10-15 02:10:47,915 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:10:47,915 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:10:47,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:10:47,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:10:47,916 INFO L87 Difference]: Start difference. First operand 591 states and 740 transitions. Second operand 3 states. [2019-10-15 02:10:47,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:10:47,948 INFO L93 Difference]: Finished difference Result 593 states and 741 transitions. [2019-10-15 02:10:47,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:10:47,949 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-10-15 02:10:47,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:10:47,955 INFO L225 Difference]: With dead ends: 593 [2019-10-15 02:10:47,955 INFO L226 Difference]: Without dead ends: 581 [2019-10-15 02:10:47,957 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 02:10:47,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2019-10-15 02:10:47,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 581. [2019-10-15 02:10:47,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 581 states. [2019-10-15 02:10:47,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 726 transitions. [2019-10-15 02:10:47,994 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 726 transitions. Word has length 26 [2019-10-15 02:10:47,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:10:47,994 INFO L462 AbstractCegarLoop]: Abstraction has 581 states and 726 transitions. [2019-10-15 02:10:47,994 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:10:47,994 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 726 transitions. [2019-10-15 02:10:47,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-15 02:10:47,997 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:10:47,997 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, 1, 1, 1, 1, 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 02:10:47,997 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:10:47,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:10:47,998 INFO L82 PathProgramCache]: Analyzing trace with hash 845106721, now seen corresponding path program 1 times [2019-10-15 02:10:47,998 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:10:47,998 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302829547] [2019-10-15 02:10:47,998 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:47,999 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:47,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:10:48,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:10:48,248 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 02:10:48,248 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302829547] [2019-10-15 02:10:48,248 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:10:48,249 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:10:48,249 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268820094] [2019-10-15 02:10:48,249 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:10:48,250 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:10:48,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:10:48,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:10:48,250 INFO L87 Difference]: Start difference. First operand 581 states and 726 transitions. Second operand 3 states. [2019-10-15 02:10:48,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:10:48,403 INFO L93 Difference]: Finished difference Result 1163 states and 1472 transitions. [2019-10-15 02:10:48,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:10:48,403 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2019-10-15 02:10:48,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:10:48,408 INFO L225 Difference]: With dead ends: 1163 [2019-10-15 02:10:48,408 INFO L226 Difference]: Without dead ends: 603 [2019-10-15 02:10:48,410 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 02:10:48,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2019-10-15 02:10:48,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 595. [2019-10-15 02:10:48,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 595 states. [2019-10-15 02:10:48,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 740 transitions. [2019-10-15 02:10:48,439 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 740 transitions. Word has length 54 [2019-10-15 02:10:48,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:10:48,440 INFO L462 AbstractCegarLoop]: Abstraction has 595 states and 740 transitions. [2019-10-15 02:10:48,440 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:10:48,440 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 740 transitions. [2019-10-15 02:10:48,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-10-15 02:10:48,444 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:10:48,445 INFO L380 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:10:48,445 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:10:48,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:10:48,445 INFO L82 PathProgramCache]: Analyzing trace with hash 35543351, now seen corresponding path program 1 times [2019-10-15 02:10:48,446 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:10:48,446 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458889276] [2019-10-15 02:10:48,446 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:48,446 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:48,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:10:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:10:48,689 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 02:10:48,689 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458889276] [2019-10-15 02:10:48,689 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:10:48,690 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:10:48,690 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93569831] [2019-10-15 02:10:48,690 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:10:48,691 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:10:48,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:10:48,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:10:48,691 INFO L87 Difference]: Start difference. First operand 595 states and 740 transitions. Second operand 3 states. [2019-10-15 02:10:48,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:10:48,764 INFO L93 Difference]: Finished difference Result 1193 states and 1502 transitions. [2019-10-15 02:10:48,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:10:48,765 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 82 [2019-10-15 02:10:48,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:10:48,769 INFO L225 Difference]: With dead ends: 1193 [2019-10-15 02:10:48,770 INFO L226 Difference]: Without dead ends: 619 [2019-10-15 02:10:48,772 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 02:10:48,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2019-10-15 02:10:48,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 607. [2019-10-15 02:10:48,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2019-10-15 02:10:48,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 752 transitions. [2019-10-15 02:10:48,799 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 752 transitions. Word has length 82 [2019-10-15 02:10:48,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:10:48,799 INFO L462 AbstractCegarLoop]: Abstraction has 607 states and 752 transitions. [2019-10-15 02:10:48,799 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:10:48,800 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 752 transitions. [2019-10-15 02:10:48,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-15 02:10:48,802 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:10:48,802 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, 1, 1, 1, 1, 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 02:10:48,802 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:10:48,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:10:48,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1404506741, now seen corresponding path program 1 times [2019-10-15 02:10:48,803 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:10:48,803 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539614124] [2019-10-15 02:10:48,803 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:48,804 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:48,804 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:10:48,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:10:49,027 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 02:10:49,027 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539614124] [2019-10-15 02:10:49,027 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:10:49,028 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 02:10:49,028 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057448692] [2019-10-15 02:10:49,028 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 02:10:49,029 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:10:49,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 02:10:49,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:10:49,029 INFO L87 Difference]: Start difference. First operand 607 states and 752 transitions. Second operand 5 states. [2019-10-15 02:10:49,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:10:49,178 INFO L93 Difference]: Finished difference Result 1259 states and 1594 transitions. [2019-10-15 02:10:49,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 02:10:49,179 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 92 [2019-10-15 02:10:49,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:10:49,183 INFO L225 Difference]: With dead ends: 1259 [2019-10-15 02:10:49,183 INFO L226 Difference]: Without dead ends: 671 [2019-10-15 02:10:49,185 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-15 02:10:49,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2019-10-15 02:10:49,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 654. [2019-10-15 02:10:49,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 654 states. [2019-10-15 02:10:49,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 825 transitions. [2019-10-15 02:10:49,214 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 825 transitions. Word has length 92 [2019-10-15 02:10:49,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:10:49,214 INFO L462 AbstractCegarLoop]: Abstraction has 654 states and 825 transitions. [2019-10-15 02:10:49,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 02:10:49,214 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 825 transitions. [2019-10-15 02:10:49,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-15 02:10:49,216 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:10:49,216 INFO L380 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-10-15 02:10:49,217 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:10:49,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:10:49,217 INFO L82 PathProgramCache]: Analyzing trace with hash -328933617, now seen corresponding path program 1 times [2019-10-15 02:10:49,217 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:10:49,218 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114020025] [2019-10-15 02:10:49,218 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:49,218 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:49,218 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:10:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:10:49,436 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-15 02:10:49,437 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114020025] [2019-10-15 02:10:49,437 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:10:49,437 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:10:49,437 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222434410] [2019-10-15 02:10:49,438 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:10:49,438 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:10:49,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:10:49,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:10:49,439 INFO L87 Difference]: Start difference. First operand 654 states and 825 transitions. Second operand 3 states. [2019-10-15 02:10:49,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:10:49,481 INFO L93 Difference]: Finished difference Result 1329 states and 1686 transitions. [2019-10-15 02:10:49,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:10:49,481 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2019-10-15 02:10:49,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:10:49,486 INFO L225 Difference]: With dead ends: 1329 [2019-10-15 02:10:49,486 INFO L226 Difference]: Without dead ends: 696 [2019-10-15 02:10:49,488 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 02:10:49,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2019-10-15 02:10:49,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 684. [2019-10-15 02:10:49,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 684 states. [2019-10-15 02:10:49,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 859 transitions. [2019-10-15 02:10:49,517 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 859 transitions. Word has length 113 [2019-10-15 02:10:49,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:10:49,520 INFO L462 AbstractCegarLoop]: Abstraction has 684 states and 859 transitions. [2019-10-15 02:10:49,520 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:10:49,520 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 859 transitions. [2019-10-15 02:10:49,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-15 02:10:49,526 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:10:49,527 INFO L380 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 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] [2019-10-15 02:10:49,527 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:10:49,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:10:49,527 INFO L82 PathProgramCache]: Analyzing trace with hash 369441069, now seen corresponding path program 1 times [2019-10-15 02:10:49,528 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:10:49,528 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460005981] [2019-10-15 02:10:49,528 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:49,528 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:49,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:10:49,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:10:49,810 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-15 02:10:49,811 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460005981] [2019-10-15 02:10:49,811 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:10:49,812 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:10:49,812 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136072471] [2019-10-15 02:10:49,814 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:10:49,814 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:10:49,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:10:49,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:10:49,815 INFO L87 Difference]: Start difference. First operand 684 states and 859 transitions. Second operand 3 states. [2019-10-15 02:10:49,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:10:49,920 INFO L93 Difference]: Finished difference Result 1371 states and 1740 transitions. [2019-10-15 02:10:49,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:10:49,921 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2019-10-15 02:10:49,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:10:49,928 INFO L225 Difference]: With dead ends: 1371 [2019-10-15 02:10:49,928 INFO L226 Difference]: Without dead ends: 708 [2019-10-15 02:10:49,933 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 02:10:49,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2019-10-15 02:10:49,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 694. [2019-10-15 02:10:49,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 694 states. [2019-10-15 02:10:49,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 869 transitions. [2019-10-15 02:10:49,980 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 869 transitions. Word has length 121 [2019-10-15 02:10:49,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:10:49,980 INFO L462 AbstractCegarLoop]: Abstraction has 694 states and 869 transitions. [2019-10-15 02:10:49,980 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:10:49,984 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 869 transitions. [2019-10-15 02:10:49,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-15 02:10:49,988 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:10:49,988 INFO L380 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 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] [2019-10-15 02:10:49,988 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:10:49,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:10:49,989 INFO L82 PathProgramCache]: Analyzing trace with hash 7258583, now seen corresponding path program 1 times [2019-10-15 02:10:49,989 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:10:49,989 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402996060] [2019-10-15 02:10:49,990 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:49,990 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:49,990 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:10:50,121 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-15 02:10:50,122 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [113622483] [2019-10-15 02:10:50,122 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 02:10:51,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:10:51,481 INFO L256 TraceCheckSpWp]: Trace formula consists of 4038 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-15 02:10:51,500 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:10:51,568 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-15 02:10:51,568 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 02:10:51,765 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-15 02:10:51,766 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402996060] [2019-10-15 02:10:51,766 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-15 02:10:51,767 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113622483] [2019-10-15 02:10:51,767 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:10:51,767 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-10-15 02:10:51,767 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656978513] [2019-10-15 02:10:51,768 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 02:10:51,769 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:10:51,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 02:10:51,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 02:10:51,770 INFO L87 Difference]: Start difference. First operand 694 states and 869 transitions. Second operand 4 states. [2019-10-15 02:10:51,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:10:51,902 INFO L93 Difference]: Finished difference Result 1401 states and 1780 transitions. [2019-10-15 02:10:51,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 02:10:51,903 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2019-10-15 02:10:51,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:10:51,907 INFO L225 Difference]: With dead ends: 1401 [2019-10-15 02:10:51,907 INFO L226 Difference]: Without dead ends: 728 [2019-10-15 02:10:51,910 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 293 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 02:10:51,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2019-10-15 02:10:51,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 695. [2019-10-15 02:10:51,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 695 states. [2019-10-15 02:10:51,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 864 transitions. [2019-10-15 02:10:51,962 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 864 transitions. Word has length 148 [2019-10-15 02:10:51,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:10:51,964 INFO L462 AbstractCegarLoop]: Abstraction has 695 states and 864 transitions. [2019-10-15 02:10:51,964 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 02:10:51,964 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 864 transitions. [2019-10-15 02:10:51,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-15 02:10:51,968 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:10:51,969 INFO L380 BasicCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:10:52,181 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:10:52,182 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:10:52,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:10:52,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1891148621, now seen corresponding path program 1 times [2019-10-15 02:10:52,183 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:10:52,183 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720101116] [2019-10-15 02:10:52,183 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:52,183 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:52,183 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:10:52,292 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-15 02:10:52,292 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2122955511] [2019-10-15 02:10:52,292 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 02:10:53,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:10:53,584 INFO L256 TraceCheckSpWp]: Trace formula consists of 4097 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-15 02:10:53,602 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:10:53,656 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2019-10-15 02:10:53,657 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 02:10:53,828 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2019-10-15 02:10:53,829 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720101116] [2019-10-15 02:10:53,830 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-15 02:10:53,830 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122955511] [2019-10-15 02:10:53,830 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:10:53,830 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-15 02:10:53,831 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558604526] [2019-10-15 02:10:53,832 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:10:53,832 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:10:53,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:10:53,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:10:53,836 INFO L87 Difference]: Start difference. First operand 695 states and 864 transitions. Second operand 3 states. [2019-10-15 02:10:53,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:10:53,908 INFO L93 Difference]: Finished difference Result 1091 states and 1374 transitions. [2019-10-15 02:10:53,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:10:53,909 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2019-10-15 02:10:53,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:10:53,914 INFO L225 Difference]: With dead ends: 1091 [2019-10-15 02:10:53,914 INFO L226 Difference]: Without dead ends: 714 [2019-10-15 02:10:53,915 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 323 SyntacticMatches, 1 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 02:10:53,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2019-10-15 02:10:53,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 697. [2019-10-15 02:10:53,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 697 states. [2019-10-15 02:10:53,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 866 transitions. [2019-10-15 02:10:53,945 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 866 transitions. Word has length 163 [2019-10-15 02:10:53,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:10:53,946 INFO L462 AbstractCegarLoop]: Abstraction has 697 states and 866 transitions. [2019-10-15 02:10:53,946 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:10:53,946 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 866 transitions. [2019-10-15 02:10:53,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-15 02:10:53,949 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:10:53,949 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:10:54,164 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:10:54,165 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:10:54,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:10:54,165 INFO L82 PathProgramCache]: Analyzing trace with hash -578504416, now seen corresponding path program 1 times [2019-10-15 02:10:54,165 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:10:54,165 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844858101] [2019-10-15 02:10:54,166 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:54,166 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:54,166 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:10:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:10:54,459 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 02:10:54,459 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844858101] [2019-10-15 02:10:54,459 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:10:54,460 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 02:10:54,460 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433337912] [2019-10-15 02:10:54,461 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 02:10:54,461 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:10:54,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 02:10:54,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 02:10:54,462 INFO L87 Difference]: Start difference. First operand 697 states and 866 transitions. Second operand 4 states. [2019-10-15 02:10:54,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:10:54,567 INFO L93 Difference]: Finished difference Result 1469 states and 1879 transitions. [2019-10-15 02:10:54,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 02:10:54,568 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2019-10-15 02:10:54,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:10:54,573 INFO L225 Difference]: With dead ends: 1469 [2019-10-15 02:10:54,573 INFO L226 Difference]: Without dead ends: 793 [2019-10-15 02:10:54,575 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 02:10:54,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2019-10-15 02:10:54,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 745. [2019-10-15 02:10:54,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 745 states. [2019-10-15 02:10:54,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 946 transitions. [2019-10-15 02:10:54,624 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 946 transitions. Word has length 160 [2019-10-15 02:10:54,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:10:54,627 INFO L462 AbstractCegarLoop]: Abstraction has 745 states and 946 transitions. [2019-10-15 02:10:54,627 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 02:10:54,627 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 946 transitions. [2019-10-15 02:10:54,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2019-10-15 02:10:54,632 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:10:54,632 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:10:54,632 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:10:54,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:10:54,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1987886609, now seen corresponding path program 1 times [2019-10-15 02:10:54,633 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:10:54,633 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409285189] [2019-10-15 02:10:54,634 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:54,634 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:54,634 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:10:54,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:10:55,103 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 02:10:55,104 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409285189] [2019-10-15 02:10:55,104 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868327374] [2019-10-15 02:10:55,104 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:10:56,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:10:56,302 INFO L256 TraceCheckSpWp]: Trace formula consists of 4138 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 02:10:56,313 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:10:56,348 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 02:10:56,348 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 02:10:56,502 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 02:10:56,503 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [775953639] [2019-10-15 02:10:56,534 INFO L162 IcfgInterpreter]: Started Sifa with 144 locations of interest [2019-10-15 02:10:56,534 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 02:10:56,541 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 02:10:56,547 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 02:10:56,548 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs