/usr/bin/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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 23:17:24,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 23:17:24,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 23:17:24,448 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 23:17:24,449 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 23:17:24,450 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 23:17:24,451 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 23:17:24,453 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 23:17:24,455 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 23:17:24,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 23:17:24,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 23:17:24,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 23:17:24,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 23:17:24,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 23:17:24,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 23:17:24,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 23:17:24,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 23:17:24,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 23:17:24,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 23:17:24,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 23:17:24,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 23:17:24,468 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 23:17:24,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 23:17:24,470 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 23:17:24,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 23:17:24,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 23:17:24,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 23:17:24,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 23:17:24,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 23:17:24,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 23:17:24,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 23:17:24,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 23:17:24,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 23:17:24,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 23:17:24,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 23:17:24,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 23:17:24,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 23:17:24,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 23:17:24,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 23:17:24,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 23:17:24,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 23:17:24,486 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 [2019-11-06 23:17:24,504 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 23:17:24,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 23:17:24,506 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 23:17:24,506 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 23:17:24,506 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 23:17:24,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 23:17:24,507 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 23:17:24,507 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 23:17:24,507 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 23:17:24,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 23:17:24,508 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 23:17:24,508 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 23:17:24,508 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 23:17:24,508 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 23:17:24,508 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 23:17:24,509 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 23:17:24,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 23:17:24,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 23:17:24,510 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 23:17:24,510 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 23:17:24,511 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 23:17:24,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 23:17:24,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 23:17:24,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 23:17:24,512 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 23:17:24,512 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 23:17:24,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 23:17:24,512 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 23:17:24,512 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-06 23:17:24,798 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 23:17:24,820 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 23:17:24,823 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 23:17:24,824 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 23:17:24,825 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 23:17:24,825 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2019-11-06 23:17:24,886 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87f944695/6ec3ee2525744a0c99cef585d1a0ca3e/FLAG46bf3b5b4 [2019-11-06 23:17:25,594 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 23:17:25,595 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2019-11-06 23:17:25,637 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87f944695/6ec3ee2525744a0c99cef585d1a0ca3e/FLAG46bf3b5b4 [2019-11-06 23:17:25,704 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87f944695/6ec3ee2525744a0c99cef585d1a0ca3e [2019-11-06 23:17:25,712 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 23:17:25,714 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 23:17:25,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 23:17:25,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 23:17:25,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 23:17:25,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:17:25" (1/1) ... [2019-11-06 23:17:25,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30909597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:17:25, skipping insertion in model container [2019-11-06 23:17:25,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:17:25" (1/1) ... [2019-11-06 23:17:25,729 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 23:17:25,830 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 23:17:26,930 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 23:17:27,004 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 23:17:27,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 23:17:27,378 INFO L192 MainTranslator]: Completed translation [2019-11-06 23:17:27,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:17:27 WrapperNode [2019-11-06 23:17:27,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 23:17:27,379 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 23:17:27,380 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 23:17:27,380 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 23:17:27,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:17:27" (1/1) ... [2019-11-06 23:17:27,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:17:27" (1/1) ... [2019-11-06 23:17:27,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:17:27" (1/1) ... [2019-11-06 23:17:27,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:17:27" (1/1) ... [2019-11-06 23:17:27,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:17:27" (1/1) ... [2019-11-06 23:17:27,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:17:27" (1/1) ... [2019-11-06 23:17:27,605 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:17:27" (1/1) ... [2019-11-06 23:17:27,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 23:17:27,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 23:17:27,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 23:17:27,628 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 23:17:27,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:17:27" (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 [2019-11-06 23:17:27,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 23:17:27,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 23:17:27,723 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-11-06 23:17:27,723 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-11-06 23:17:27,723 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-11-06 23:17:27,724 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-11-06 23:17:27,724 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string [2019-11-06 23:17:27,724 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-11-06 23:17:27,724 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2019-11-06 23:17:27,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-11-06 23:17:27,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2019-11-06 23:17:27,725 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_usb_dump_class_desc [2019-11-06 23:17:27,725 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_usb_find_class_desc [2019-11-06 23:17:27,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_xbof_change [2019-11-06 23:17:27,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_startup [2019-11-06 23:17:27,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_open [2019-11-06 23:17:27,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_prepare_write_buffer [2019-11-06 23:17:27,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_process_read_urb [2019-11-06 23:17:27,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_set_termios_callback [2019-11-06 23:17:27,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_set_termios [2019-11-06 23:17:27,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_init [2019-11-06 23:17:27,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_exit [2019-11-06 23:17:27,727 INFO L138 BoogieDeclarations]: Found implementation of procedure init_module [2019-11-06 23:17:27,727 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_module [2019-11-06 23:17:27,727 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 23:17:27,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-11-06 23:17:27,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2019-11-06 23:17:27,728 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-11-06 23:17:27,728 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-11-06 23:17:27,728 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-11-06 23:17:27,728 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-11-06 23:17:27,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-11-06 23:17:27,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_out [2019-11-06 23:17:27,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_out_r [2019-11-06 23:17:27,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-11-06 23:17:27,729 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-11-06 23:17:27,729 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-11-06 23:17:27,729 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-11-06 23:17:27,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-11-06 23:17:27,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-11-06 23:17:27,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2019-11-06 23:17:27,730 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-11-06 23:17:27,730 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_encode_baud_rate [2019-11-06 23:17:27,730 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2019-11-06 23:17:27,730 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_get_baud_rate [2019-11-06 23:17:27,731 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2019-11-06 23:17:27,731 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2019-11-06 23:17:27,731 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2019-11-06 23:17:27,731 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_termios_copy_hw [2019-11-06 23:17:27,731 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-11-06 23:17:27,731 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-11-06 23:17:27,731 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-11-06 23:17:27,732 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2019-11-06 23:17:27,732 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_open [2019-11-06 23:17:27,732 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register [2019-11-06 23:17:27,732 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2019-11-06 23:17:27,732 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-11-06 23:17:27,732 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-11-06 23:17:27,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 23:17:27,733 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-11-06 23:17:27,733 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-11-06 23:17:27,733 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-11-06 23:17:27,733 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-11-06 23:17:27,733 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-11-06 23:17:27,734 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-06 23:17:27,734 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-11-06 23:17:27,734 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-11-06 23:17:27,734 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-11-06 23:17:27,734 INFO L130 BoogieDeclarations]: Found specification of procedure init_module [2019-11-06 23:17:27,734 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_module [2019-11-06 23:17:27,734 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-11-06 23:17:27,735 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2019-11-06 23:17:27,735 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2019-11-06 23:17:27,735 INFO L130 BoogieDeclarations]: Found specification of procedure tty_get_baud_rate [2019-11-06 23:17:27,735 INFO L130 BoogieDeclarations]: Found specification of procedure tty_encode_baud_rate [2019-11-06 23:17:27,735 INFO L130 BoogieDeclarations]: Found specification of procedure tty_termios_copy_hw [2019-11-06 23:17:27,735 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2019-11-06 23:17:27,735 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2019-11-06 23:17:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string [2019-11-06 23:17:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-11-06 23:17:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-11-06 23:17:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 23:17:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-11-06 23:17:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2019-11-06 23:17:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 23:17:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 23:17:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-11-06 23:17:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-11-06 23:17:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2019-11-06 23:17:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-11-06 23:17:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-11-06 23:17:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-11-06 23:17:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-11-06 23:17:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 23:17:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2019-11-06 23:17:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_out [2019-11-06 23:17:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_out_r [2019-11-06 23:17:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2019-11-06 23:17:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2019-11-06 23:17:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2019-11-06 23:17:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2019-11-06 23:17:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_open [2019-11-06 23:17:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure ir_startup [2019-11-06 23:17:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure ir_open [2019-11-06 23:17:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure ir_prepare_write_buffer [2019-11-06 23:17:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure ir_process_read_urb [2019-11-06 23:17:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure ir_set_termios [2019-11-06 23:17:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure irda_usb_dump_class_desc [2019-11-06 23:17:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure irda_usb_find_class_desc [2019-11-06 23:17:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure ir_xbof_change [2019-11-06 23:17:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 23:17:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure ir_set_termios_callback [2019-11-06 23:17:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure ir_init [2019-11-06 23:17:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure ir_exit [2019-11-06 23:17:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-11-06 23:17:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-11-06 23:17:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-11-06 23:17:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 23:17:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 23:17:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-11-06 23:17:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2019-11-06 23:17:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2019-11-06 23:17:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-11-06 23:17:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-11-06 23:17:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-11-06 23:17:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-06 23:17:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 23:17:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 23:17:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 23:17:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-06 23:17:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-06 23:17:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 23:17:28,354 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-06 23:17:28,479 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume !false; [2019-11-06 23:17:28,479 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume false; [2019-11-06 23:17:28,515 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-06 23:17:28,566 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume !false; [2019-11-06 23:17:28,567 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume false; [2019-11-06 23:17:28,945 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2019-11-06 23:17:28,951 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-06 23:17:28,986 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume !false; [2019-11-06 23:17:28,986 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume false; [2019-11-06 23:17:31,692 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-06 23:17:31,786 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##54: assume false; [2019-11-06 23:17:31,787 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume !false; [2019-11-06 23:17:31,815 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 23:17:31,815 INFO L284 CfgBuilder]: Removed 27 assume(true) statements. [2019-11-06 23:17:31,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:17:31 BoogieIcfgContainer [2019-11-06 23:17:31,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 23:17:31,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 23:17:31,819 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 23:17:31,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 23:17:31,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:17:25" (1/3) ... [2019-11-06 23:17:31,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b6d229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:17:31, skipping insertion in model container [2019-11-06 23:17:31,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:17:27" (2/3) ... [2019-11-06 23:17:31,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b6d229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:17:31, skipping insertion in model container [2019-11-06 23:17:31,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:17:31" (3/3) ... [2019-11-06 23:17:31,826 INFO L109 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2019-11-06 23:17:31,836 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 23:17:31,846 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 23:17:31,859 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 23:17:31,888 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 23:17:31,889 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 23:17:31,889 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 23:17:31,889 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 23:17:31,889 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 23:17:31,889 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 23:17:31,889 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 23:17:31,889 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 23:17:31,917 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states. [2019-11-06 23:17:31,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-06 23:17:31,925 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 23:17:31,926 INFO L410 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] [2019-11-06 23:17:31,929 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 23:17:31,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 23:17:31,934 INFO L82 PathProgramCache]: Analyzing trace with hash 921078484, now seen corresponding path program 1 times [2019-11-06 23:17:31,944 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 23:17:31,945 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675158903] [2019-11-06 23:17:31,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 23:17:32,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 23:17:32,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 23:17:32,798 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675158903] [2019-11-06 23:17:32,799 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 23:17:32,799 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-06 23:17:32,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144135818] [2019-11-06 23:17:32,805 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-06 23:17:32,807 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 23:17:32,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-06 23:17:32,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-06 23:17:32,826 INFO L87 Difference]: Start difference. First operand 441 states. Second operand 6 states. [2019-11-06 23:17:40,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 23:17:40,767 INFO L93 Difference]: Finished difference Result 1165 states and 1604 transitions. [2019-11-06 23:17:40,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-06 23:17:40,769 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2019-11-06 23:17:40,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 23:17:40,794 INFO L225 Difference]: With dead ends: 1165 [2019-11-06 23:17:40,794 INFO L226 Difference]: Without dead ends: 737 [2019-11-06 23:17:40,803 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-11-06 23:17:40,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2019-11-06 23:17:40,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 725. [2019-11-06 23:17:40,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 725 states. [2019-11-06 23:17:40,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 902 transitions. [2019-11-06 23:17:40,937 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 902 transitions. Word has length 27 [2019-11-06 23:17:40,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 23:17:40,938 INFO L462 AbstractCegarLoop]: Abstraction has 725 states and 902 transitions. [2019-11-06 23:17:40,938 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-06 23:17:40,938 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 902 transitions. [2019-11-06 23:17:40,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-06 23:17:40,939 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 23:17:40,939 INFO L410 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] [2019-11-06 23:17:40,940 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 23:17:40,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 23:17:40,940 INFO L82 PathProgramCache]: Analyzing trace with hash -99989870, now seen corresponding path program 1 times [2019-11-06 23:17:40,940 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 23:17:40,941 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183543912] [2019-11-06 23:17:40,941 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 23:17:41,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 23:17:41,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 23:17:41,173 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183543912] [2019-11-06 23:17:41,174 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 23:17:41,174 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 23:17:41,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043471581] [2019-11-06 23:17:41,176 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 23:17:41,176 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 23:17:41,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 23:17:41,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 23:17:41,177 INFO L87 Difference]: Start difference. First operand 725 states and 902 transitions. Second operand 3 states. [2019-11-06 23:17:41,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 23:17:41,269 INFO L93 Difference]: Finished difference Result 2100 states and 2637 transitions. [2019-11-06 23:17:41,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 23:17:41,270 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-11-06 23:17:41,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 23:17:41,286 INFO L225 Difference]: With dead ends: 2100 [2019-11-06 23:17:41,287 INFO L226 Difference]: Without dead ends: 1410 [2019-11-06 23:17:41,290 INFO L630 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 [2019-11-06 23:17:41,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2019-11-06 23:17:41,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1395. [2019-11-06 23:17:41,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1395 states. [2019-11-06 23:17:41,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 1749 transitions. [2019-11-06 23:17:41,375 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 1749 transitions. Word has length 27 [2019-11-06 23:17:41,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 23:17:41,376 INFO L462 AbstractCegarLoop]: Abstraction has 1395 states and 1749 transitions. [2019-11-06 23:17:41,376 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 23:17:41,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 1749 transitions. [2019-11-06 23:17:41,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-06 23:17:41,378 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 23:17:41,378 INFO L410 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] [2019-11-06 23:17:41,378 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 23:17:41,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 23:17:41,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1195105585, now seen corresponding path program 1 times [2019-11-06 23:17:41,379 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 23:17:41,379 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211069247] [2019-11-06 23:17:41,379 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 23:17:41,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 23:17:41,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 23:17:41,572 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211069247] [2019-11-06 23:17:41,572 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 23:17:41,572 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 23:17:41,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842339236] [2019-11-06 23:17:41,573 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 23:17:41,574 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 23:17:41,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 23:17:41,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 23:17:41,574 INFO L87 Difference]: Start difference. First operand 1395 states and 1749 transitions. Second operand 3 states. [2019-11-06 23:17:41,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 23:17:41,675 INFO L93 Difference]: Finished difference Result 1397 states and 1750 transitions. [2019-11-06 23:17:41,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 23:17:41,675 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2019-11-06 23:17:41,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 23:17:41,683 INFO L225 Difference]: With dead ends: 1397 [2019-11-06 23:17:41,684 INFO L226 Difference]: Without dead ends: 1372 [2019-11-06 23:17:41,685 INFO L630 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 [2019-11-06 23:17:41,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2019-11-06 23:17:41,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1372. [2019-11-06 23:17:41,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1372 states. [2019-11-06 23:17:41,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 1719 transitions. [2019-11-06 23:17:41,778 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 1719 transitions. Word has length 28 [2019-11-06 23:17:41,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 23:17:41,778 INFO L462 AbstractCegarLoop]: Abstraction has 1372 states and 1719 transitions. [2019-11-06 23:17:41,779 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 23:17:41,779 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 1719 transitions. [2019-11-06 23:17:41,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-11-06 23:17:41,793 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 23:17:41,793 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-06 23:17:41,793 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 23:17:41,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 23:17:41,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1665270100, now seen corresponding path program 1 times [2019-11-06 23:17:41,794 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 23:17:41,794 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592218385] [2019-11-06 23:17:41,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 23:17:41,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 23:17:42,092 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 23:17:42,093 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592218385] [2019-11-06 23:17:42,093 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 23:17:42,094 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-06 23:17:42,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252371728] [2019-11-06 23:17:42,095 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-06 23:17:42,095 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 23:17:42,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-06 23:17:42,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-06 23:17:42,096 INFO L87 Difference]: Start difference. First operand 1372 states and 1719 transitions. Second operand 6 states. [2019-11-06 23:17:42,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 23:17:42,224 INFO L93 Difference]: Finished difference Result 2710 states and 3402 transitions. [2019-11-06 23:17:42,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-06 23:17:42,225 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2019-11-06 23:17:42,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 23:17:42,236 INFO L225 Difference]: With dead ends: 2710 [2019-11-06 23:17:42,237 INFO L226 Difference]: Without dead ends: 1367 [2019-11-06 23:17:42,241 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-06 23:17:42,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2019-11-06 23:17:42,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1367. [2019-11-06 23:17:42,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1367 states. [2019-11-06 23:17:42,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1712 transitions. [2019-11-06 23:17:42,344 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1712 transitions. Word has length 102 [2019-11-06 23:17:42,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 23:17:42,346 INFO L462 AbstractCegarLoop]: Abstraction has 1367 states and 1712 transitions. [2019-11-06 23:17:42,347 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-06 23:17:42,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1712 transitions. [2019-11-06 23:17:42,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-11-06 23:17:42,353 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 23:17:42,353 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-06 23:17:42,354 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 23:17:42,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 23:17:42,354 INFO L82 PathProgramCache]: Analyzing trace with hash 960569056, now seen corresponding path program 1 times [2019-11-06 23:17:42,354 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 23:17:42,355 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509384834] [2019-11-06 23:17:42,355 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 23:17:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 23:17:42,625 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 23:17:42,625 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509384834] [2019-11-06 23:17:42,626 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 23:17:42,626 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-06 23:17:42,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136557934] [2019-11-06 23:17:42,627 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 23:17:42,627 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 23:17:42,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 23:17:42,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-06 23:17:42,628 INFO L87 Difference]: Start difference. First operand 1367 states and 1712 transitions. Second operand 5 states. [2019-11-06 23:17:47,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 23:17:47,764 INFO L93 Difference]: Finished difference Result 2727 states and 3424 transitions. [2019-11-06 23:17:47,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-06 23:17:47,764 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2019-11-06 23:17:47,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 23:17:47,773 INFO L225 Difference]: With dead ends: 2727 [2019-11-06 23:17:47,773 INFO L226 Difference]: Without dead ends: 1393 [2019-11-06 23:17:47,778 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-06 23:17:47,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2019-11-06 23:17:47,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1367. [2019-11-06 23:17:47,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1367 states. [2019-11-06 23:17:47,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1710 transitions. [2019-11-06 23:17:47,859 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1710 transitions. Word has length 112 [2019-11-06 23:17:47,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 23:17:47,861 INFO L462 AbstractCegarLoop]: Abstraction has 1367 states and 1710 transitions. [2019-11-06 23:17:47,861 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 23:17:47,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1710 transitions. [2019-11-06 23:17:47,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-11-06 23:17:47,871 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 23:17:47,872 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-06 23:17:47,872 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 23:17:47,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 23:17:47,872 INFO L82 PathProgramCache]: Analyzing trace with hash 467942882, now seen corresponding path program 1 times [2019-11-06 23:17:47,873 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 23:17:47,873 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243705178] [2019-11-06 23:17:47,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 23:17:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 23:17:48,177 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 23:17:48,178 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243705178] [2019-11-06 23:17:48,178 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 23:17:48,178 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-06 23:17:48,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798892311] [2019-11-06 23:17:48,179 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 23:17:48,179 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 23:17:48,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 23:17:48,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-06 23:17:48,180 INFO L87 Difference]: Start difference. First operand 1367 states and 1710 transitions. Second operand 5 states. [2019-11-06 23:17:48,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 23:17:48,272 INFO L93 Difference]: Finished difference Result 2674 states and 3360 transitions. [2019-11-06 23:17:48,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-06 23:17:48,273 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2019-11-06 23:17:48,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 23:17:48,280 INFO L225 Difference]: With dead ends: 2674 [2019-11-06 23:17:48,280 INFO L226 Difference]: Without dead ends: 1340 [2019-11-06 23:17:48,285 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-06 23:17:48,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2019-11-06 23:17:48,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1336. [2019-11-06 23:17:48,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1336 states. [2019-11-06 23:17:48,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1665 transitions. [2019-11-06 23:17:48,348 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1665 transitions. Word has length 112 [2019-11-06 23:17:48,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 23:17:48,349 INFO L462 AbstractCegarLoop]: Abstraction has 1336 states and 1665 transitions. [2019-11-06 23:17:48,349 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 23:17:48,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1665 transitions. [2019-11-06 23:17:48,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-11-06 23:17:48,352 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 23:17:48,352 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 23:17:48,353 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 23:17:48,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 23:17:48,353 INFO L82 PathProgramCache]: Analyzing trace with hash -26259892, now seen corresponding path program 1 times [2019-11-06 23:17:48,353 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 23:17:48,354 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263187140] [2019-11-06 23:17:48,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 23:17:48,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 23:17:48,565 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 23:17:48,566 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263187140] [2019-11-06 23:17:48,566 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 23:17:48,566 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-06 23:17:48,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927741780] [2019-11-06 23:17:48,568 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 23:17:48,568 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 23:17:48,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 23:17:48,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-06 23:17:48,569 INFO L87 Difference]: Start difference. First operand 1336 states and 1665 transitions. Second operand 5 states. [2019-11-06 23:17:48,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 23:17:48,640 INFO L93 Difference]: Finished difference Result 2025 states and 2529 transitions. [2019-11-06 23:17:48,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-06 23:17:48,640 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2019-11-06 23:17:48,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 23:17:48,652 INFO L225 Difference]: With dead ends: 2025 [2019-11-06 23:17:48,652 INFO L226 Difference]: Without dead ends: 1340 [2019-11-06 23:17:48,655 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-06 23:17:48,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2019-11-06 23:17:48,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1340. [2019-11-06 23:17:48,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1340 states. [2019-11-06 23:17:48,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1667 transitions. [2019-11-06 23:17:48,713 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1667 transitions. Word has length 109 [2019-11-06 23:17:48,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 23:17:48,714 INFO L462 AbstractCegarLoop]: Abstraction has 1340 states and 1667 transitions. [2019-11-06 23:17:48,714 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 23:17:48,714 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1667 transitions. [2019-11-06 23:17:48,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-11-06 23:17:48,717 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 23:17:48,717 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-06 23:17:48,718 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 23:17:48,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 23:17:48,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1161044579, now seen corresponding path program 1 times [2019-11-06 23:17:48,718 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 23:17:48,719 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361062429] [2019-11-06 23:17:48,719 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 23:17:48,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 23:17:48,925 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 23:17:48,925 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361062429] [2019-11-06 23:17:48,925 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 23:17:48,926 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-06 23:17:48,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333531031] [2019-11-06 23:17:48,926 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 23:17:48,926 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 23:17:48,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 23:17:48,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-06 23:17:48,928 INFO L87 Difference]: Start difference. First operand 1340 states and 1667 transitions. Second operand 5 states. [2019-11-06 23:17:53,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 23:17:53,965 INFO L93 Difference]: Finished difference Result 2668 states and 3327 transitions. [2019-11-06 23:17:53,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-06 23:17:53,966 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2019-11-06 23:17:53,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 23:17:53,976 INFO L225 Difference]: With dead ends: 2668 [2019-11-06 23:17:53,976 INFO L226 Difference]: Without dead ends: 1361 [2019-11-06 23:17:53,980 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-06 23:17:53,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1361 states. [2019-11-06 23:17:54,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1361 to 1336. [2019-11-06 23:17:54,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1336 states. [2019-11-06 23:17:54,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1659 transitions. [2019-11-06 23:17:54,055 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1659 transitions. Word has length 112 [2019-11-06 23:17:54,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 23:17:54,056 INFO L462 AbstractCegarLoop]: Abstraction has 1336 states and 1659 transitions. [2019-11-06 23:17:54,056 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 23:17:54,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1659 transitions. [2019-11-06 23:17:54,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-11-06 23:17:54,058 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 23:17:54,059 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-06 23:17:54,059 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 23:17:54,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 23:17:54,059 INFO L82 PathProgramCache]: Analyzing trace with hash 971083495, now seen corresponding path program 1 times [2019-11-06 23:17:54,059 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 23:17:54,060 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656391678] [2019-11-06 23:17:54,060 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 23:17:54,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 23:17:54,336 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 23:17:54,336 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656391678] [2019-11-06 23:17:54,336 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 23:17:54,337 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-06 23:17:54,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419113571] [2019-11-06 23:17:54,337 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-06 23:17:54,338 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 23:17:54,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-06 23:17:54,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-06 23:17:54,338 INFO L87 Difference]: Start difference. First operand 1336 states and 1659 transitions. Second operand 6 states. [2019-11-06 23:17:58,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 23:17:58,626 INFO L93 Difference]: Finished difference Result 2029 states and 2531 transitions. [2019-11-06 23:17:58,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-06 23:17:58,626 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 112 [2019-11-06 23:17:58,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 23:17:58,637 INFO L225 Difference]: With dead ends: 2029 [2019-11-06 23:17:58,638 INFO L226 Difference]: Without dead ends: 2026 [2019-11-06 23:17:58,639 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-11-06 23:17:58,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2026 states. [2019-11-06 23:17:58,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2026 to 2008. [2019-11-06 23:17:58,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2008 states. [2019-11-06 23:17:58,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 2511 transitions. [2019-11-06 23:17:58,732 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 2511 transitions. Word has length 112 [2019-11-06 23:17:58,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 23:17:58,734 INFO L462 AbstractCegarLoop]: Abstraction has 2008 states and 2511 transitions. [2019-11-06 23:17:58,734 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-06 23:17:58,734 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 2511 transitions. [2019-11-06 23:17:58,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-11-06 23:17:58,739 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 23:17:58,739 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-06 23:17:58,739 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 23:17:58,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 23:17:58,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1928323846, now seen corresponding path program 1 times [2019-11-06 23:17:58,740 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 23:17:58,740 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939418190] [2019-11-06 23:17:58,741 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 23:17:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 23:17:59,028 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 23:17:59,028 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939418190] [2019-11-06 23:17:59,029 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 23:17:59,029 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-06 23:17:59,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636889732] [2019-11-06 23:17:59,030 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-06 23:17:59,030 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 23:17:59,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-06 23:17:59,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-06 23:17:59,031 INFO L87 Difference]: Start difference. First operand 2008 states and 2511 transitions. Second operand 6 states.