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-f4eb214f-m [2019-10-13 22:08:05,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:08:05,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:08:05,516 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:08:05,517 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:08:05,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:08:05,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:08:05,521 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:08:05,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:08:05,523 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:08:05,524 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:08:05,525 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:08:05,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:08:05,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:08:05,528 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:08:05,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:08:05,529 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:08:05,530 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:08:05,532 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:08:05,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:08:05,535 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:08:05,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:08:05,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:08:05,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:08:05,543 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 22:08:05,543 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 22:08:05,543 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 22:08:05,544 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 22:08:05,544 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 22:08:05,546 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 22:08:05,546 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 22:08:05,547 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 22:08:05,548 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 22:08:05,549 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 22:08:05,550 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 22:08:05,550 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 22:08:05,550 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 22:08:05,551 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 22:08:05,551 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:08:05,552 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:08:05,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:08:05,553 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 22:08:05,577 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:08:05,578 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:08:05,579 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:08:05,579 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:08:05,580 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:08:05,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:08:05,580 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:08:05,581 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:08:05,581 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:08:05,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:08:05,582 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:08:05,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:08:05,583 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:08:05,583 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:08:05,583 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:08:05,583 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:08:05,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:08:05,584 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:08:05,584 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:08:05,584 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:08:05,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:08:05,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:08:05,585 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:08:05,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:08:05,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:08:05,586 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:08:05,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:08:05,586 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:08:05,586 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 22:08:05,872 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:08:05,886 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:08:05,893 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:08:05,898 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:08:05,898 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:08:05,899 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i [2019-10-13 22:08:05,980 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2609bcba8/9952be062fba4a32881ab24cb4b2acab/FLAGea1211680 [2019-10-13 22:08:06,867 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:08:06,868 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i [2019-10-13 22:08:06,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2609bcba8/9952be062fba4a32881ab24cb4b2acab/FLAGea1211680 [2019-10-13 22:08:07,309 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2609bcba8/9952be062fba4a32881ab24cb4b2acab [2019-10-13 22:08:07,320 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:08:07,322 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:08:07,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:08:07,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:08:07,327 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:08:07,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:08:07" (1/1) ... [2019-10-13 22:08:07,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@465ce920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:08:07, skipping insertion in model container [2019-10-13 22:08:07,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:08:07" (1/1) ... [2019-10-13 22:08:07,337 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:08:07,435 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:08:08,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:08:08,952 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:08:09,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:08:09,379 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:08:09,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:08:09 WrapperNode [2019-10-13 22:08:09,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:08:09,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:08:09,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:08:09,382 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:08:09,405 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:08:09" (1/1) ... [2019-10-13 22:08:09,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:08:09" (1/1) ... [2019-10-13 22:08:09,507 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:08:09" (1/1) ... [2019-10-13 22:08:09,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:08:09" (1/1) ... [2019-10-13 22:08:09,601 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:08:09" (1/1) ... [2019-10-13 22:08:09,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:08:09" (1/1) ... [2019-10-13 22:08:09,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:08:09" (1/1) ... [2019-10-13 22:08:09,704 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:08:09,705 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:08:09,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:08:09,705 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:08:09,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:08:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:08:09,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:08:09,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:08:09,809 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-13 22:08:09,809 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-13 22:08:09,809 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-10-13 22:08:09,811 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-10-13 22:08:09,812 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-13 22:08:09,812 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-13 22:08:09,812 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2019-10-13 22:08:09,812 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 22:08:09,813 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 22:08:09,814 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-10-13 22:08:09,814 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2019-10-13 22:08:09,815 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2019-10-13 22:08:09,815 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-10-13 22:08:09,815 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-10-13 22:08:09,818 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2019-10-13 22:08:09,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-13 22:08:09,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_int_must_check_helper [2019-10-13 22:08:09,820 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_buffer_init [2019-10-13 22:08:09,820 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_buffer_free [2019-10-13 22:08:09,820 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_buffer_write [2019-10-13 22:08:09,820 INFO L138 BoogieDeclarations]: Found implementation of procedure free_imon_context [2019-10-13 22:08:09,820 INFO L138 BoogieDeclarations]: Found implementation of procedure deregister_from_lirc [2019-10-13 22:08:09,821 INFO L138 BoogieDeclarations]: Found implementation of procedure display_open [2019-10-13 22:08:09,821 INFO L138 BoogieDeclarations]: Found implementation of procedure display_close [2019-10-13 22:08:09,821 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2019-10-13 22:08:09,821 INFO L138 BoogieDeclarations]: Found implementation of procedure vfd_write [2019-10-13 22:08:09,822 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_tx_callback [2019-10-13 22:08:09,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_open [2019-10-13 22:08:09,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_close [2019-10-13 22:08:09,824 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_data [2019-10-13 22:08:09,824 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_incoming_packet [2019-10-13 22:08:09,824 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_rx_callback [2019-10-13 22:08:09,824 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_probe [2019-10-13 22:08:09,824 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_disconnect [2019-10-13 22:08:09,825 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_suspend [2019-10-13 22:08:09,825 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_resume [2019-10-13 22:08:09,825 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_init [2019-10-13 22:08:09,825 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_exit [2019-10-13 22:08:09,825 INFO L138 BoogieDeclarations]: Found implementation of procedure init_module [2019-10-13 22:08:09,826 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_module [2019-10-13 22:08:09,826 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:08:09,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-10-13 22:08:09,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2019-10-13 22:08:09,826 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-10-13 22:08:09,827 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-10-13 22:08:09,827 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-10-13 22:08:09,827 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-10-13 22:08:09,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 22:08:09,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-13 22:08:09,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_alloc [2019-10-13 22:08:09,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_free [2019-10-13 22:08:09,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_in [2019-10-13 22:08:09,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_in_r [2019-10-13 22:08:09,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 22:08:09,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-13 22:08:09,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-13 22:08:09,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-13 22:08:09,830 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-13 22:08:09,831 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-13 22:08:09,831 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-13 22:08:09,831 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2019-10-13 22:08:09,831 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_all [2019-10-13 22:08:09,831 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-13 22:08:09,832 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2019-10-13 22:08:09,832 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-13 22:08:09,832 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2019-10-13 22:08:09,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-10-13 22:08:09,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 22:08:09,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2019-10-13 22:08:09,833 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_register_driver [2019-10-13 22:08:09,833 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_unregister_driver [2019-10-13 22:08:09,835 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2019-10-13 22:08:09,835 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-13 22:08:09,835 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-13 22:08:09,837 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 22:08:09,837 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-13 22:08:09,838 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2019-10-13 22:08:09,838 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_interface [2019-10-13 22:08:09,838 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2019-10-13 22:08:09,840 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-10-13 22:08:09,840 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_match_id [2019-10-13 22:08:09,840 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2019-10-13 22:08:09,841 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-13 22:08:09,841 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2019-10-13 22:08:09,841 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_interruptible [2019-10-13 22:08:09,843 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-10-13 22:08:09,843 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 22:08:09,843 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 22:08:09,844 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 22:08:09,844 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2019-10-13 22:08:09,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:08:09,844 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 22:08:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-10-13 22:08:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2019-10-13 22:08:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 22:08:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2019-10-13 22:08:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-13 22:08:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-13 22:08:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-10-13 22:08:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 22:08:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-10-13 22:08:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 22:08:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-13 22:08:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-13 22:08:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-13 22:08:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-13 22:08:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-13 22:08:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-13 22:08:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-13 22:08:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-13 22:08:09,849 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-13 22:08:09,849 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-13 22:08:09,849 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2019-10-13 22:08:09,849 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_interruptible [2019-10-13 22:08:09,851 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2019-10-13 22:08:09,851 INFO L130 BoogieDeclarations]: Found specification of procedure complete_all [2019-10-13 22:08:09,851 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 22:08:09,852 INFO L130 BoogieDeclarations]: Found specification of procedure init_module [2019-10-13 22:08:09,853 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_module [2019-10-13 22:08:09,854 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 22:08:09,854 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 22:08:09,854 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 22:08:09,856 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-13 22:08:09,856 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-13 22:08:09,856 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2019-10-13 22:08:09,857 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2019-10-13 22:08:09,857 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-13 22:08:09,858 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-10-13 22:08:09,858 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-10-13 22:08:09,859 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2019-10-13 22:08:09,861 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2019-10-13 22:08:09,862 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-10-13 22:08:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 22:08:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2019-10-13 22:08:09,867 INFO L130 BoogieDeclarations]: Found specification of procedure usb_match_id [2019-10-13 22:08:09,867 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_interface [2019-10-13 22:08:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-13 22:08:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-10-13 22:08:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 22:08:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-13 22:08:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2019-10-13 22:08:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2019-10-13 22:08:09,876 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2019-10-13 22:08:09,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 22:08:09,877 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-10-13 22:08:09,877 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-10-13 22:08:09,877 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2019-10-13 22:08:09,877 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-10-13 22:08:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-10-13 22:08:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-10-13 22:08:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-13 22:08:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_int_must_check_helper [2019-10-13 22:08:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_alloc [2019-10-13 22:08:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_free [2019-10-13 22:08:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_in [2019-10-13 22:08:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_in_r [2019-10-13 22:08:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_buffer_init [2019-10-13 22:08:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_buffer_free [2019-10-13 22:08:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_buffer_write [2019-10-13 22:08:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_register_driver [2019-10-13 22:08:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_unregister_driver [2019-10-13 22:08:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure imon_probe [2019-10-13 22:08:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure imon_disconnect [2019-10-13 22:08:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure usb_rx_callback [2019-10-13 22:08:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure usb_tx_callback [2019-10-13 22:08:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure imon_resume [2019-10-13 22:08:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure imon_suspend [2019-10-13 22:08:09,882 INFO L130 BoogieDeclarations]: Found specification of procedure display_open [2019-10-13 22:08:09,882 INFO L130 BoogieDeclarations]: Found specification of procedure display_close [2019-10-13 22:08:09,882 INFO L130 BoogieDeclarations]: Found specification of procedure vfd_write [2019-10-13 22:08:09,882 INFO L130 BoogieDeclarations]: Found specification of procedure ir_open [2019-10-13 22:08:09,882 INFO L130 BoogieDeclarations]: Found specification of procedure ir_close [2019-10-13 22:08:09,883 INFO L130 BoogieDeclarations]: Found specification of procedure imon_init [2019-10-13 22:08:09,883 INFO L130 BoogieDeclarations]: Found specification of procedure imon_exit [2019-10-13 22:08:09,883 INFO L130 BoogieDeclarations]: Found specification of procedure free_imon_context [2019-10-13 22:08:09,883 INFO L130 BoogieDeclarations]: Found specification of procedure deregister_from_lirc [2019-10-13 22:08:09,883 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2019-10-13 22:08:09,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 22:08:09,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 22:08:09,884 INFO L130 BoogieDeclarations]: Found specification of procedure submit_data [2019-10-13 22:08:09,884 INFO L130 BoogieDeclarations]: Found specification of procedure imon_incoming_packet [2019-10-13 22:08:09,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2019-10-13 22:08:09,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 22:08:09,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-10-13 22:08:09,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 22:08:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 22:08:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:08:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-10-13 22:08:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2019-10-13 22:08:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2019-10-13 22:08:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-13 22:08:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 22:08:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 22:08:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 22:08:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 22:08:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:08:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 22:08:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 22:08:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:08:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 22:08:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 22:08:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 22:08:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 22:08:11,962 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2019-10-13 22:08:19,168 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-13 22:08:19,186 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-10-13 22:08:19,186 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-10-13 22:08:19,367 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-13 22:08:19,427 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume !false; [2019-10-13 22:08:19,428 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume false; [2019-10-13 22:08:26,414 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:08:26,414 INFO L284 CfgBuilder]: Removed 40 assume(true) statements. [2019-10-13 22:08:26,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:08:26 BoogieIcfgContainer [2019-10-13 22:08:26,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:08:26,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:08:26,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:08:26,422 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:08:26,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:08:07" (1/3) ... [2019-10-13 22:08:26,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5774ae0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:08:26, skipping insertion in model container [2019-10-13 22:08:26,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:08:09" (2/3) ... [2019-10-13 22:08:26,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5774ae0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:08:26, skipping insertion in model container [2019-10-13 22:08:26,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:08:26" (3/3) ... [2019-10-13 22:08:26,427 INFO L109 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i [2019-10-13 22:08:26,437 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:08:26,454 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:08:26,466 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:08:26,508 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:08:26,508 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:08:26,508 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:08:26,508 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:08:26,508 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:08:26,509 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:08:26,509 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:08:26,509 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:08:26,549 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states. [2019-10-13 22:08:26,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-13 22:08:26,556 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:08:26,557 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:08:26,560 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:08:26,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:08:26,567 INFO L82 PathProgramCache]: Analyzing trace with hash 86399700, now seen corresponding path program 1 times [2019-10-13 22:08:26,576 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:08:26,577 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496953647] [2019-10-13 22:08:26,577 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:08:26,577 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:08:26,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:08:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:08:27,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:08:27,579 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496953647] [2019-10-13 22:08:27,580 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:08:27,581 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:08:27,581 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182101236] [2019-10-13 22:08:27,587 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:08:27,588 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:08:27,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:08:27,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:08:27,607 INFO L87 Difference]: Start difference. First operand 555 states. Second operand 3 states. [2019-10-13 22:08:27,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:08:27,843 INFO L93 Difference]: Finished difference Result 925 states and 1229 transitions. [2019-10-13 22:08:27,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:08:27,849 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-10-13 22:08:27,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:08:27,888 INFO L225 Difference]: With dead ends: 925 [2019-10-13 22:08:27,888 INFO L226 Difference]: Without dead ends: 595 [2019-10-13 22:08:27,901 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 [2019-10-13 22:08:27,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2019-10-13 22:08:28,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 591. [2019-10-13 22:08:28,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2019-10-13 22:08:28,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 740 transitions. [2019-10-13 22:08:28,054 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 740 transitions. Word has length 25 [2019-10-13 22:08:28,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:08:28,054 INFO L462 AbstractCegarLoop]: Abstraction has 591 states and 740 transitions. [2019-10-13 22:08:28,055 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:08:28,055 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 740 transitions. [2019-10-13 22:08:28,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-13 22:08:28,056 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:08:28,056 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:08:28,057 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:08:28,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:08:28,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1616917055, now seen corresponding path program 1 times [2019-10-13 22:08:28,057 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:08:28,058 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377999332] [2019-10-13 22:08:28,058 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:08:28,058 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:08:28,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:08:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:08:28,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:08:28,469 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377999332] [2019-10-13 22:08:28,470 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:08:28,470 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:08:28,470 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675847188] [2019-10-13 22:08:28,544 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:08:28,544 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:08:28,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:08:28,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:08:28,545 INFO L87 Difference]: Start difference. First operand 591 states and 740 transitions. Second operand 3 states. [2019-10-13 22:08:28,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:08:28,592 INFO L93 Difference]: Finished difference Result 593 states and 741 transitions. [2019-10-13 22:08:28,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:08:28,592 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-10-13 22:08:28,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:08:28,600 INFO L225 Difference]: With dead ends: 593 [2019-10-13 22:08:28,600 INFO L226 Difference]: Without dead ends: 581 [2019-10-13 22:08:28,602 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:08:28,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2019-10-13 22:08:28,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 581. [2019-10-13 22:08:28,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 581 states. [2019-10-13 22:08:28,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 726 transitions. [2019-10-13 22:08:28,675 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 726 transitions. Word has length 26 [2019-10-13 22:08:28,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:08:28,676 INFO L462 AbstractCegarLoop]: Abstraction has 581 states and 726 transitions. [2019-10-13 22:08:28,676 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:08:28,676 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 726 transitions. [2019-10-13 22:08:28,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-13 22:08:28,681 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:08:28,681 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] [2019-10-13 22:08:28,681 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:08:28,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:08:28,682 INFO L82 PathProgramCache]: Analyzing trace with hash 845106721, now seen corresponding path program 1 times [2019-10-13 22:08:28,682 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:08:28,682 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415676061] [2019-10-13 22:08:28,682 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:08:28,683 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:08:28,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:08:28,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:08:28,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:08:28,987 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415676061] [2019-10-13 22:08:28,987 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:08:28,987 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:08:28,988 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053642937] [2019-10-13 22:08:28,988 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:08:28,988 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:08:28,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:08:28,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:08:28,989 INFO L87 Difference]: Start difference. First operand 581 states and 726 transitions. Second operand 3 states. [2019-10-13 22:08:29,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:08:29,080 INFO L93 Difference]: Finished difference Result 1163 states and 1472 transitions. [2019-10-13 22:08:29,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:08:29,080 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2019-10-13 22:08:29,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:08:29,084 INFO L225 Difference]: With dead ends: 1163 [2019-10-13 22:08:29,085 INFO L226 Difference]: Without dead ends: 603 [2019-10-13 22:08:29,087 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:08:29,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2019-10-13 22:08:29,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 595. [2019-10-13 22:08:29,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 595 states. [2019-10-13 22:08:29,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 740 transitions. [2019-10-13 22:08:29,119 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 740 transitions. Word has length 54 [2019-10-13 22:08:29,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:08:29,120 INFO L462 AbstractCegarLoop]: Abstraction has 595 states and 740 transitions. [2019-10-13 22:08:29,120 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:08:29,120 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 740 transitions. [2019-10-13 22:08:29,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-10-13 22:08:29,124 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:08:29,124 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] [2019-10-13 22:08:29,124 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:08:29,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:08:29,125 INFO L82 PathProgramCache]: Analyzing trace with hash 35543351, now seen corresponding path program 1 times [2019-10-13 22:08:29,125 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:08:29,125 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597644879] [2019-10-13 22:08:29,125 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:08:29,125 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:08:29,126 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:08:29,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:08:29,431 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 22:08:29,431 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597644879] [2019-10-13 22:08:29,432 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:08:29,432 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:08:29,432 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494171746] [2019-10-13 22:08:29,433 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:08:29,433 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:08:29,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:08:29,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:08:29,434 INFO L87 Difference]: Start difference. First operand 595 states and 740 transitions. Second operand 3 states. [2019-10-13 22:08:29,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:08:29,515 INFO L93 Difference]: Finished difference Result 1193 states and 1502 transitions. [2019-10-13 22:08:29,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:08:29,516 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 82 [2019-10-13 22:08:29,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:08:29,520 INFO L225 Difference]: With dead ends: 1193 [2019-10-13 22:08:29,521 INFO L226 Difference]: Without dead ends: 619 [2019-10-13 22:08:29,523 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:08:29,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2019-10-13 22:08:29,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 607. [2019-10-13 22:08:29,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2019-10-13 22:08:29,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 752 transitions. [2019-10-13 22:08:29,555 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 752 transitions. Word has length 82 [2019-10-13 22:08:29,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:08:29,556 INFO L462 AbstractCegarLoop]: Abstraction has 607 states and 752 transitions. [2019-10-13 22:08:29,556 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:08:29,556 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 752 transitions. [2019-10-13 22:08:29,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-13 22:08:29,559 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:08:29,559 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] [2019-10-13 22:08:29,559 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:08:29,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:08:29,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1404506741, now seen corresponding path program 1 times [2019-10-13 22:08:29,560 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:08:29,560 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673355232] [2019-10-13 22:08:29,560 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:08:29,561 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:08:29,561 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:08:29,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:08:29,845 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 22:08:29,845 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673355232] [2019-10-13 22:08:29,845 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:08:29,846 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 22:08:29,846 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672803977] [2019-10-13 22:08:29,848 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 22:08:29,848 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:08:29,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 22:08:29,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:08:29,849 INFO L87 Difference]: Start difference. First operand 607 states and 752 transitions. Second operand 5 states. [2019-10-13 22:08:30,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:08:30,022 INFO L93 Difference]: Finished difference Result 1259 states and 1594 transitions. [2019-10-13 22:08:30,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 22:08:30,023 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 92 [2019-10-13 22:08:30,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:08:30,027 INFO L225 Difference]: With dead ends: 1259 [2019-10-13 22:08:30,028 INFO L226 Difference]: Without dead ends: 671 [2019-10-13 22:08:30,030 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 [2019-10-13 22:08:30,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2019-10-13 22:08:30,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 654. [2019-10-13 22:08:30,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 654 states. [2019-10-13 22:08:30,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 825 transitions. [2019-10-13 22:08:30,062 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 825 transitions. Word has length 92 [2019-10-13 22:08:30,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:08:30,063 INFO L462 AbstractCegarLoop]: Abstraction has 654 states and 825 transitions. [2019-10-13 22:08:30,063 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 22:08:30,063 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 825 transitions. [2019-10-13 22:08:30,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-13 22:08:30,065 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:08:30,065 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] [2019-10-13 22:08:30,066 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:08:30,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:08:30,066 INFO L82 PathProgramCache]: Analyzing trace with hash -328933617, now seen corresponding path program 1 times [2019-10-13 22:08:30,067 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:08:30,067 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576513809] [2019-10-13 22:08:30,067 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:08:30,067 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:08:30,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:08:30,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:08:30,371 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-13 22:08:30,372 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576513809] [2019-10-13 22:08:30,372 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:08:30,372 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:08:30,373 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151325027] [2019-10-13 22:08:30,373 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:08:30,374 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:08:30,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:08:30,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:08:30,375 INFO L87 Difference]: Start difference. First operand 654 states and 825 transitions. Second operand 3 states. [2019-10-13 22:08:30,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:08:30,434 INFO L93 Difference]: Finished difference Result 1329 states and 1686 transitions. [2019-10-13 22:08:30,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:08:30,435 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2019-10-13 22:08:30,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:08:30,441 INFO L225 Difference]: With dead ends: 1329 [2019-10-13 22:08:30,441 INFO L226 Difference]: Without dead ends: 696 [2019-10-13 22:08:30,444 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:08:30,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2019-10-13 22:08:30,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 684. [2019-10-13 22:08:30,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 684 states. [2019-10-13 22:08:30,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 859 transitions. [2019-10-13 22:08:30,478 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 859 transitions. Word has length 113 [2019-10-13 22:08:30,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:08:30,479 INFO L462 AbstractCegarLoop]: Abstraction has 684 states and 859 transitions. [2019-10-13 22:08:30,479 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:08:30,479 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 859 transitions. [2019-10-13 22:08:30,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-13 22:08:30,481 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:08:30,481 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] [2019-10-13 22:08:30,481 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:08:30,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:08:30,482 INFO L82 PathProgramCache]: Analyzing trace with hash 369441069, now seen corresponding path program 1 times [2019-10-13 22:08:30,482 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:08:30,482 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144025249] [2019-10-13 22:08:30,482 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:08:30,483 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:08:30,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:08:30,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:08:30,934 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-13 22:08:30,935 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144025249] [2019-10-13 22:08:30,935 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:08:30,935 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:08:30,936 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035960522] [2019-10-13 22:08:30,936 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:08:30,937 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:08:30,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:08:30,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:08:30,937 INFO L87 Difference]: Start difference. First operand 684 states and 859 transitions. Second operand 3 states. [2019-10-13 22:08:31,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:08:31,020 INFO L93 Difference]: Finished difference Result 1371 states and 1740 transitions. [2019-10-13 22:08:31,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:08:31,021 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2019-10-13 22:08:31,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:08:31,028 INFO L225 Difference]: With dead ends: 1371 [2019-10-13 22:08:31,028 INFO L226 Difference]: Without dead ends: 708 [2019-10-13 22:08:31,031 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:08:31,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2019-10-13 22:08:31,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 694. [2019-10-13 22:08:31,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 694 states. [2019-10-13 22:08:31,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 869 transitions. [2019-10-13 22:08:31,076 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 869 transitions. Word has length 121 [2019-10-13 22:08:31,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:08:31,077 INFO L462 AbstractCegarLoop]: Abstraction has 694 states and 869 transitions. [2019-10-13 22:08:31,078 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:08:31,078 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 869 transitions. [2019-10-13 22:08:31,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-13 22:08:31,080 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:08:31,080 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] [2019-10-13 22:08:31,080 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:08:31,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:08:31,081 INFO L82 PathProgramCache]: Analyzing trace with hash 7258583, now seen corresponding path program 1 times [2019-10-13 22:08:31,081 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:08:31,081 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818050302] [2019-10-13 22:08:31,081 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:08:31,082 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:08:31,082 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:08:31,243 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-13 22:08:31,244 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2129084609] [2019-10-13 22:08:31,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:08:32,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:08:32,774 INFO L256 TraceCheckSpWp]: Trace formula consists of 4038 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-13 22:08:32,798 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:08:32,857 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-13 22:08:32,858 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:08:33,063 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-13 22:08:33,064 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818050302] [2019-10-13 22:08:33,064 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-13 22:08:33,064 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129084609] [2019-10-13 22:08:33,065 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:08:33,065 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-10-13 22:08:33,065 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092859325] [2019-10-13 22:08:33,066 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 22:08:33,066 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:08:33,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 22:08:33,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 22:08:33,067 INFO L87 Difference]: Start difference. First operand 694 states and 869 transitions. Second operand 4 states. [2019-10-13 22:08:33,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:08:33,235 INFO L93 Difference]: Finished difference Result 1401 states and 1780 transitions. [2019-10-13 22:08:33,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 22:08:33,236 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2019-10-13 22:08:33,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:08:33,243 INFO L225 Difference]: With dead ends: 1401 [2019-10-13 22:08:33,243 INFO L226 Difference]: Without dead ends: 728 [2019-10-13 22:08:33,247 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 [2019-10-13 22:08:33,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2019-10-13 22:08:33,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 695. [2019-10-13 22:08:33,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 695 states. [2019-10-13 22:08:33,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 864 transitions. [2019-10-13 22:08:33,318 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 864 transitions. Word has length 148 [2019-10-13 22:08:33,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:08:33,320 INFO L462 AbstractCegarLoop]: Abstraction has 695 states and 864 transitions. [2019-10-13 22:08:33,320 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 22:08:33,320 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 864 transitions. [2019-10-13 22:08:33,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-13 22:08:33,326 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:08:33,326 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] [2019-10-13 22:08:33,527 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:08:33,527 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:08:33,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:08:33,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1891148621, now seen corresponding path program 1 times [2019-10-13 22:08:33,529 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:08:33,529 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301193928] [2019-10-13 22:08:33,530 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:08:33,530 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:08:33,530 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:08:33,710 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-13 22:08:33,710 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1449423511] [2019-10-13 22:08:33,711 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 [2019-10-13 22:08:35,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:08:35,346 INFO L256 TraceCheckSpWp]: Trace formula consists of 4097 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-13 22:08:35,358 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:08:35,395 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2019-10-13 22:08:35,395 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:08:35,621 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2019-10-13 22:08:35,621 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301193928] [2019-10-13 22:08:35,621 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-13 22:08:35,622 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449423511] [2019-10-13 22:08:35,622 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:08:35,622 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-13 22:08:35,622 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982456114] [2019-10-13 22:08:35,623 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:08:35,623 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:08:35,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:08:35,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:08:35,624 INFO L87 Difference]: Start difference. First operand 695 states and 864 transitions. Second operand 3 states. [2019-10-13 22:08:35,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:08:35,719 INFO L93 Difference]: Finished difference Result 1091 states and 1374 transitions. [2019-10-13 22:08:35,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:08:35,720 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2019-10-13 22:08:35,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:08:35,725 INFO L225 Difference]: With dead ends: 1091 [2019-10-13 22:08:35,725 INFO L226 Difference]: Without dead ends: 714 [2019-10-13 22:08:35,727 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 [2019-10-13 22:08:35,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2019-10-13 22:08:35,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 697. [2019-10-13 22:08:35,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 697 states. [2019-10-13 22:08:35,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 866 transitions. [2019-10-13 22:08:35,763 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 866 transitions. Word has length 163 [2019-10-13 22:08:35,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:08:35,764 INFO L462 AbstractCegarLoop]: Abstraction has 697 states and 866 transitions. [2019-10-13 22:08:35,764 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:08:35,764 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 866 transitions. [2019-10-13 22:08:35,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-13 22:08:35,767 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:08:35,768 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] [2019-10-13 22:08:35,982 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:08:35,983 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:08:35,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:08:35,983 INFO L82 PathProgramCache]: Analyzing trace with hash -578504416, now seen corresponding path program 1 times [2019-10-13 22:08:35,983 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:08:35,984 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447865548] [2019-10-13 22:08:35,984 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:08:35,984 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:08:35,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:08:36,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:08:36,368 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 22:08:36,368 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447865548] [2019-10-13 22:08:36,369 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:08:36,369 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 22:08:36,369 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374992699] [2019-10-13 22:08:36,370 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 22:08:36,371 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:08:36,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 22:08:36,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 22:08:36,371 INFO L87 Difference]: Start difference. First operand 697 states and 866 transitions. Second operand 4 states. [2019-10-13 22:08:36,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:08:36,500 INFO L93 Difference]: Finished difference Result 1469 states and 1879 transitions. [2019-10-13 22:08:36,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 22:08:36,501 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2019-10-13 22:08:36,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:08:36,506 INFO L225 Difference]: With dead ends: 1469 [2019-10-13 22:08:36,507 INFO L226 Difference]: Without dead ends: 793 [2019-10-13 22:08:36,510 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 22:08:36,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2019-10-13 22:08:36,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 745. [2019-10-13 22:08:36,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 745 states. [2019-10-13 22:08:36,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 946 transitions. [2019-10-13 22:08:36,553 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 946 transitions. Word has length 160 [2019-10-13 22:08:36,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:08:36,556 INFO L462 AbstractCegarLoop]: Abstraction has 745 states and 946 transitions. [2019-10-13 22:08:36,556 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 22:08:36,556 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 946 transitions. [2019-10-13 22:08:36,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2019-10-13 22:08:36,559 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:08:36,559 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] [2019-10-13 22:08:36,559 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:08:36,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:08:36,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1987886609, now seen corresponding path program 1 times [2019-10-13 22:08:36,560 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:08:36,560 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314129415] [2019-10-13 22:08:36,560 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:08:36,561 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:08:36,561 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:08:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:08:37,071 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 22:08:37,072 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314129415] [2019-10-13 22:08:37,072 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350460999] [2019-10-13 22:08:37,072 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 [2019-10-13 22:08:38,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:08:38,846 INFO L256 TraceCheckSpWp]: Trace formula consists of 4138 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 22:08:38,855 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:08:38,887 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-13 22:08:38,887 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:08:39,088 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 22:08:39,089 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1411607407] [2019-10-13 22:08:39,123 INFO L162 IcfgInterpreter]: Started Sifa with 144 locations of interest [2019-10-13 22:08:39,123 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 22:08:39,130 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 22:08:39,137 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 22:08:39,138 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs