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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -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-fea9116 [2019-09-20 13:32:29,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:32:29,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:32:29,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:32:29,771 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:32:29,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:32:29,775 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:32:29,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:32:29,788 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:32:29,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:32:29,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:32:29,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:32:29,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:32:29,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:32:29,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:32:29,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:32:29,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:32:29,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:32:29,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:32:29,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:32:29,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:32:29,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:32:29,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:32:29,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:32:29,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:32:29,821 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:32:29,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:32:29,824 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:32:29,826 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:32:29,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:32:29,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:32:29,829 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:32:29,830 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:32:29,831 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:32:29,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:32:29,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:32:29,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:32:29,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:32:29,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:32:29,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:32:29,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:32:29,837 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:32:29,865 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:32:29,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:32:29,866 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:32:29,866 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:32:29,870 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:32:29,871 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:32:29,871 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:32:29,871 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:32:29,871 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:32:29,872 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:32:29,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:32:29,874 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:32:29,874 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:32:29,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:32:29,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:32:29,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:32:29,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:32:29,875 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:32:29,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:32:29,876 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:32:29,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:32:29,876 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:32:29,876 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:32:29,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:32:29,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:32:29,877 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:32:29,877 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:32:29,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:32:29,878 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:32:29,878 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:32:29,931 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:32:29,943 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:32:29,946 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:32:29,947 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:32:29,948 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:32:29,949 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2019-09-20 13:32:30,003 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2bcc8fc8/4d2fcc910fd34cf8be7f484a357d21fa/FLAG8593556e0 [2019-09-20 13:32:30,779 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:32:30,780 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2019-09-20 13:32:30,834 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2bcc8fc8/4d2fcc910fd34cf8be7f484a357d21fa/FLAG8593556e0 [2019-09-20 13:32:31,328 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2bcc8fc8/4d2fcc910fd34cf8be7f484a357d21fa [2019-09-20 13:32:31,338 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:32:31,339 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:32:31,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:32:31,340 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:32:31,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:32:31,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:32:31" (1/1) ... [2019-09-20 13:32:31,348 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7658e18d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:31, skipping insertion in model container [2019-09-20 13:32:31,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:32:31" (1/1) ... [2019-09-20 13:32:31,355 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:32:31,454 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:32:32,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:32:32,833 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:32:33,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:32:33,171 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:32:33,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:33 WrapperNode [2019-09-20 13:32:33,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:32:33,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:32:33,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:32:33,174 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:32:33,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:33" (1/1) ... [2019-09-20 13:32:33,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:33" (1/1) ... [2019-09-20 13:32:33,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:33" (1/1) ... [2019-09-20 13:32:33,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:33" (1/1) ... [2019-09-20 13:32:33,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:33" (1/1) ... [2019-09-20 13:32:33,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:33" (1/1) ... [2019-09-20 13:32:33,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:33" (1/1) ... [2019-09-20 13:32:33,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:32:33,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:32:33,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:32:33,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:32:33,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:33" (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 [2019-09-20 13:32:33,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:32:33,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:32:33,563 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-09-20 13:32:33,564 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-09-20 13:32:33,564 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-09-20 13:32:33,564 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-09-20 13:32:33,565 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string [2019-09-20 13:32:33,565 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-09-20 13:32:33,565 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2019-09-20 13:32:33,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-09-20 13:32:33,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2019-09-20 13:32:33,566 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_usb_dump_class_desc [2019-09-20 13:32:33,566 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_usb_find_class_desc [2019-09-20 13:32:33,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_xbof_change [2019-09-20 13:32:33,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_startup [2019-09-20 13:32:33,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_open [2019-09-20 13:32:33,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_prepare_write_buffer [2019-09-20 13:32:33,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_process_read_urb [2019-09-20 13:32:33,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_set_termios_callback [2019-09-20 13:32:33,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_set_termios [2019-09-20 13:32:33,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_init [2019-09-20 13:32:33,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_exit [2019-09-20 13:32:33,569 INFO L138 BoogieDeclarations]: Found implementation of procedure init_module [2019-09-20 13:32:33,569 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_module [2019-09-20 13:32:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:32:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-09-20 13:32:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2019-09-20 13:32:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-09-20 13:32:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-09-20 13:32:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-09-20 13:32:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-09-20 13:32:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-20 13:32:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_out [2019-09-20 13:32:33,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_out_r [2019-09-20 13:32:33,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-09-20 13:32:33,572 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-09-20 13:32:33,572 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-09-20 13:32:33,573 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-09-20 13:32:33,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-09-20 13:32:33,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-20 13:32:33,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2019-09-20 13:32:33,573 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-09-20 13:32:33,574 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_encode_baud_rate [2019-09-20 13:32:33,574 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2019-09-20 13:32:33,574 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_get_baud_rate [2019-09-20 13:32:33,574 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2019-09-20 13:32:33,574 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2019-09-20 13:32:33,575 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2019-09-20 13:32:33,575 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_termios_copy_hw [2019-09-20 13:32:33,575 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-09-20 13:32:33,575 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-09-20 13:32:33,575 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-09-20 13:32:33,576 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2019-09-20 13:32:33,576 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_open [2019-09-20 13:32:33,576 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register [2019-09-20 13:32:33,576 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2019-09-20 13:32:33,576 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-20 13:32:33,577 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-20 13:32:33,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:32:33,577 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-09-20 13:32:33,577 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-09-20 13:32:33,578 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-09-20 13:32:33,578 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-09-20 13:32:33,578 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-09-20 13:32:33,578 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-20 13:32:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-09-20 13:32:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-09-20 13:32:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-09-20 13:32:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure init_module [2019-09-20 13:32:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_module [2019-09-20 13:32:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-09-20 13:32:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2019-09-20 13:32:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2019-09-20 13:32:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure tty_get_baud_rate [2019-09-20 13:32:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure tty_encode_baud_rate [2019-09-20 13:32:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure tty_termios_copy_hw [2019-09-20 13:32:33,581 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2019-09-20 13:32:33,581 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2019-09-20 13:32:33,581 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string [2019-09-20 13:32:33,581 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-09-20 13:32:33,581 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-09-20 13:32:33,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:32:33,582 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-09-20 13:32:33,582 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2019-09-20 13:32:33,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:32:33,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:32:33,583 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-09-20 13:32:33,583 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-09-20 13:32:33,583 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2019-09-20 13:32:33,583 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-09-20 13:32:33,583 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-09-20 13:32:33,584 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-09-20 13:32:33,584 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-09-20 13:32:33,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:32:33,584 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2019-09-20 13:32:33,584 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_out [2019-09-20 13:32:33,584 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_out_r [2019-09-20 13:32:33,585 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2019-09-20 13:32:33,585 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2019-09-20 13:32:33,585 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2019-09-20 13:32:33,585 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2019-09-20 13:32:33,585 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_open [2019-09-20 13:32:33,586 INFO L130 BoogieDeclarations]: Found specification of procedure ir_startup [2019-09-20 13:32:33,586 INFO L130 BoogieDeclarations]: Found specification of procedure ir_open [2019-09-20 13:32:33,586 INFO L130 BoogieDeclarations]: Found specification of procedure ir_prepare_write_buffer [2019-09-20 13:32:33,586 INFO L130 BoogieDeclarations]: Found specification of procedure ir_process_read_urb [2019-09-20 13:32:33,586 INFO L130 BoogieDeclarations]: Found specification of procedure ir_set_termios [2019-09-20 13:32:33,587 INFO L130 BoogieDeclarations]: Found specification of procedure irda_usb_dump_class_desc [2019-09-20 13:32:33,587 INFO L130 BoogieDeclarations]: Found specification of procedure irda_usb_find_class_desc [2019-09-20 13:32:33,587 INFO L130 BoogieDeclarations]: Found specification of procedure ir_xbof_change [2019-09-20 13:32:33,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:32:33,587 INFO L130 BoogieDeclarations]: Found specification of procedure ir_set_termios_callback [2019-09-20 13:32:33,588 INFO L130 BoogieDeclarations]: Found specification of procedure ir_init [2019-09-20 13:32:33,588 INFO L130 BoogieDeclarations]: Found specification of procedure ir_exit [2019-09-20 13:32:33,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-20 13:32:33,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-09-20 13:32:33,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-20 13:32:33,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:32:33,589 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:32:33,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-09-20 13:32:33,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2019-09-20 13:32:33,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2019-09-20 13:32:33,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-20 13:32:33,590 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-20 13:32:33,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-20 13:32:33,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-20 13:32:33,590 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:32:33,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:32:33,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:32:33,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:32:33,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-20 13:32:33,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:32:34,460 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-20 13:32:34,629 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume !false; [2019-09-20 13:32:34,629 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume false; [2019-09-20 13:32:34,668 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-20 13:32:34,737 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume !false; [2019-09-20 13:32:34,738 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume false; [2019-09-20 13:32:35,200 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2019-09-20 13:32:35,212 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-20 13:32:35,246 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume !false; [2019-09-20 13:32:35,246 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume false; [2019-09-20 13:32:37,594 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-20 13:32:37,699 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##54: assume false; [2019-09-20 13:32:37,699 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume !false; [2019-09-20 13:32:37,726 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:32:37,726 INFO L283 CfgBuilder]: Removed 27 assume(true) statements. [2019-09-20 13:32:37,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:32:37 BoogieIcfgContainer [2019-09-20 13:32:37,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:32:37,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:32:37,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:32:37,733 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:32:37,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:32:31" (1/3) ... [2019-09-20 13:32:37,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@289e0ba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:32:37, skipping insertion in model container [2019-09-20 13:32:37,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:33" (2/3) ... [2019-09-20 13:32:37,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@289e0ba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:32:37, skipping insertion in model container [2019-09-20 13:32:37,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:32:37" (3/3) ... [2019-09-20 13:32:37,737 INFO L109 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2019-09-20 13:32:37,747 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:32:37,757 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:32:37,774 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:32:37,803 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:32:37,803 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:32:37,804 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:32:37,804 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:32:37,804 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:32:37,804 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:32:37,804 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:32:37,804 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:32:37,829 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states. [2019-09-20 13:32:37,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-09-20 13:32:37,841 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:32:37,842 INFO L407 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] [2019-09-20 13:32:37,844 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:32:37,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:32:37,854 INFO L82 PathProgramCache]: Analyzing trace with hash 921078484, now seen corresponding path program 1 times [2019-09-20 13:32:37,857 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:32:37,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:37,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:32:37,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:37,950 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:32:38,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:32:38,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:32:38,632 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:32:38,632 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:32:38,632 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:32:38,638 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:32:38,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:32:38,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:32:38,656 INFO L87 Difference]: Start difference. First operand 441 states. Second operand 6 states. [2019-09-20 13:32:46,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:32:46,738 INFO L93 Difference]: Finished difference Result 755 states and 935 transitions. [2019-09-20 13:32:46,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:32:46,740 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2019-09-20 13:32:46,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:32:46,769 INFO L225 Difference]: With dead ends: 755 [2019-09-20 13:32:46,770 INFO L226 Difference]: Without dead ends: 737 [2019-09-20 13:32:46,772 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:32:46,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2019-09-20 13:32:46,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 725. [2019-09-20 13:32:46,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 725 states. [2019-09-20 13:32:46,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 902 transitions. [2019-09-20 13:32:46,884 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 902 transitions. Word has length 27 [2019-09-20 13:32:46,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:32:46,885 INFO L475 AbstractCegarLoop]: Abstraction has 725 states and 902 transitions. [2019-09-20 13:32:46,885 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:32:46,885 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 902 transitions. [2019-09-20 13:32:46,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-09-20 13:32:46,886 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:32:46,886 INFO L407 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] [2019-09-20 13:32:46,887 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:32:46,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:32:46,887 INFO L82 PathProgramCache]: Analyzing trace with hash -99989870, now seen corresponding path program 1 times [2019-09-20 13:32:46,887 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:32:46,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:46,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:32:46,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:46,894 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:32:47,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:32:47,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:32:47,179 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:32:47,179 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:32:47,180 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:32:47,187 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:32:47,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:32:47,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:32:47,191 INFO L87 Difference]: Start difference. First operand 725 states and 902 transitions. Second operand 3 states. [2019-09-20 13:32:47,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:32:47,249 INFO L93 Difference]: Finished difference Result 1410 states and 1763 transitions. [2019-09-20 13:32:47,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:32:47,251 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-09-20 13:32:47,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:32:47,266 INFO L225 Difference]: With dead ends: 1410 [2019-09-20 13:32:47,266 INFO L226 Difference]: Without dead ends: 1410 [2019-09-20 13:32:47,268 INFO L636 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 [2019-09-20 13:32:47,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2019-09-20 13:32:47,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1395. [2019-09-20 13:32:47,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1395 states. [2019-09-20 13:32:47,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 1749 transitions. [2019-09-20 13:32:47,359 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 1749 transitions. Word has length 27 [2019-09-20 13:32:47,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:32:47,360 INFO L475 AbstractCegarLoop]: Abstraction has 1395 states and 1749 transitions. [2019-09-20 13:32:47,360 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:32:47,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 1749 transitions. [2019-09-20 13:32:47,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-09-20 13:32:47,362 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:32:47,363 INFO L407 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] [2019-09-20 13:32:47,364 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:32:47,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:32:47,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1195105585, now seen corresponding path program 1 times [2019-09-20 13:32:47,364 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:32:47,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:47,375 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:32:47,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:47,376 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:32:47,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:32:47,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:32:47,587 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:32:47,588 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:32:47,588 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:32:47,588 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:32:47,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:32:47,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:32:47,589 INFO L87 Difference]: Start difference. First operand 1395 states and 1749 transitions. Second operand 3 states. [2019-09-20 13:32:47,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:32:47,613 INFO L93 Difference]: Finished difference Result 1394 states and 1747 transitions. [2019-09-20 13:32:47,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:32:47,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2019-09-20 13:32:47,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:32:47,626 INFO L225 Difference]: With dead ends: 1394 [2019-09-20 13:32:47,627 INFO L226 Difference]: Without dead ends: 1372 [2019-09-20 13:32:47,635 INFO L636 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 [2019-09-20 13:32:47,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2019-09-20 13:32:47,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1372. [2019-09-20 13:32:47,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1372 states. [2019-09-20 13:32:47,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 1719 transitions. [2019-09-20 13:32:47,684 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 1719 transitions. Word has length 28 [2019-09-20 13:32:47,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:32:47,685 INFO L475 AbstractCegarLoop]: Abstraction has 1372 states and 1719 transitions. [2019-09-20 13:32:47,685 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:32:47,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 1719 transitions. [2019-09-20 13:32:47,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-20 13:32:47,699 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:32:47,699 INFO L407 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] [2019-09-20 13:32:47,699 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:32:47,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:32:47,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1665270100, now seen corresponding path program 1 times [2019-09-20 13:32:47,700 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:32:47,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:47,708 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:32:47,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:47,708 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:32:47,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:32:47,964 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:32:47,964 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:32:47,965 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:32:47,965 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:32:47,965 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:32:47,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:32:47,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:32:47,966 INFO L87 Difference]: Start difference. First operand 1372 states and 1719 transitions. Second operand 6 states. [2019-09-20 13:32:48,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:32:48,012 INFO L93 Difference]: Finished difference Result 1376 states and 1722 transitions. [2019-09-20 13:32:48,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:32:48,012 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2019-09-20 13:32:48,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:32:48,019 INFO L225 Difference]: With dead ends: 1376 [2019-09-20 13:32:48,019 INFO L226 Difference]: Without dead ends: 1367 [2019-09-20 13:32:48,020 INFO L636 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 [2019-09-20 13:32:48,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2019-09-20 13:32:48,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1367. [2019-09-20 13:32:48,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1367 states. [2019-09-20 13:32:48,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1712 transitions. [2019-09-20 13:32:48,059 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1712 transitions. Word has length 102 [2019-09-20 13:32:48,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:32:48,060 INFO L475 AbstractCegarLoop]: Abstraction has 1367 states and 1712 transitions. [2019-09-20 13:32:48,060 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:32:48,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1712 transitions. [2019-09-20 13:32:48,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-09-20 13:32:48,065 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:32:48,065 INFO L407 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] [2019-09-20 13:32:48,066 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:32:48,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:32:48,066 INFO L82 PathProgramCache]: Analyzing trace with hash 960569056, now seen corresponding path program 1 times [2019-09-20 13:32:48,066 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:32:48,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:48,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:32:48,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:48,071 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:32:48,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:32:48,270 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:32:48,270 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:32:48,270 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:32:48,270 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:32:48,271 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:32:48,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:32:48,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:32:48,272 INFO L87 Difference]: Start difference. First operand 1367 states and 1712 transitions. Second operand 5 states. [2019-09-20 13:32:53,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:32:53,018 INFO L93 Difference]: Finished difference Result 1393 states and 1737 transitions. [2019-09-20 13:32:53,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:32:53,018 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2019-09-20 13:32:53,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:32:53,026 INFO L225 Difference]: With dead ends: 1393 [2019-09-20 13:32:53,026 INFO L226 Difference]: Without dead ends: 1393 [2019-09-20 13:32:53,026 INFO L636 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 [2019-09-20 13:32:53,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2019-09-20 13:32:53,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1367. [2019-09-20 13:32:53,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1367 states. [2019-09-20 13:32:53,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1710 transitions. [2019-09-20 13:32:53,066 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1710 transitions. Word has length 112 [2019-09-20 13:32:53,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:32:53,067 INFO L475 AbstractCegarLoop]: Abstraction has 1367 states and 1710 transitions. [2019-09-20 13:32:53,067 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:32:53,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1710 transitions. [2019-09-20 13:32:53,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-09-20 13:32:53,070 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:32:53,070 INFO L407 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] [2019-09-20 13:32:53,071 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:32:53,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:32:53,071 INFO L82 PathProgramCache]: Analyzing trace with hash 467942882, now seen corresponding path program 1 times [2019-09-20 13:32:53,071 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:32:53,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:53,077 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:32:53,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:53,077 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:32:53,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:32:53,293 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:32:53,294 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:32:53,294 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:32:53,294 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:32:53,295 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:32:53,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:32:53,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:32:53,296 INFO L87 Difference]: Start difference. First operand 1367 states and 1710 transitions. Second operand 5 states. [2019-09-20 13:32:53,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:32:53,324 INFO L93 Difference]: Finished difference Result 1340 states and 1671 transitions. [2019-09-20 13:32:53,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:32:53,324 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2019-09-20 13:32:53,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:32:53,339 INFO L225 Difference]: With dead ends: 1340 [2019-09-20 13:32:53,339 INFO L226 Difference]: Without dead ends: 1340 [2019-09-20 13:32:53,340 INFO L636 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 [2019-09-20 13:32:53,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2019-09-20 13:32:53,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1336. [2019-09-20 13:32:53,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1336 states. [2019-09-20 13:32:53,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1665 transitions. [2019-09-20 13:32:53,389 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1665 transitions. Word has length 112 [2019-09-20 13:32:53,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:32:53,391 INFO L475 AbstractCegarLoop]: Abstraction has 1336 states and 1665 transitions. [2019-09-20 13:32:53,391 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:32:53,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1665 transitions. [2019-09-20 13:32:53,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-20 13:32:53,396 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:32:53,398 INFO L407 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] [2019-09-20 13:32:53,400 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:32:53,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:32:53,400 INFO L82 PathProgramCache]: Analyzing trace with hash -26259892, now seen corresponding path program 1 times [2019-09-20 13:32:53,401 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:32:53,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:53,413 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:32:53,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:53,413 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:32:53,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:32:53,654 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:32:53,654 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:32:53,654 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:32:53,655 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:32:53,655 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:32:53,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:32:53,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:32:53,656 INFO L87 Difference]: Start difference. First operand 1336 states and 1665 transitions. Second operand 5 states. [2019-09-20 13:32:53,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:32:53,686 INFO L93 Difference]: Finished difference Result 1340 states and 1667 transitions. [2019-09-20 13:32:53,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:32:53,687 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2019-09-20 13:32:53,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:32:53,695 INFO L225 Difference]: With dead ends: 1340 [2019-09-20 13:32:53,695 INFO L226 Difference]: Without dead ends: 1340 [2019-09-20 13:32:53,696 INFO L636 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 [2019-09-20 13:32:53,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2019-09-20 13:32:53,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1340. [2019-09-20 13:32:53,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1340 states. [2019-09-20 13:32:53,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1667 transitions. [2019-09-20 13:32:53,733 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1667 transitions. Word has length 109 [2019-09-20 13:32:53,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:32:53,734 INFO L475 AbstractCegarLoop]: Abstraction has 1340 states and 1667 transitions. [2019-09-20 13:32:53,734 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:32:53,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1667 transitions. [2019-09-20 13:32:53,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-09-20 13:32:53,737 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:32:53,737 INFO L407 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] [2019-09-20 13:32:53,737 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:32:53,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:32:53,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1161044579, now seen corresponding path program 1 times [2019-09-20 13:32:53,738 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:32:53,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:53,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:32:53,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:53,743 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:32:53,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:32:53,939 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:32:53,939 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:32:53,940 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:32:53,940 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:32:53,940 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:32:53,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:32:53,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:32:53,941 INFO L87 Difference]: Start difference. First operand 1340 states and 1667 transitions. Second operand 5 states. [2019-09-20 13:32:58,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:32:58,598 INFO L93 Difference]: Finished difference Result 1361 states and 1685 transitions. [2019-09-20 13:32:58,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:32:58,598 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2019-09-20 13:32:58,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:32:58,605 INFO L225 Difference]: With dead ends: 1361 [2019-09-20 13:32:58,606 INFO L226 Difference]: Without dead ends: 1361 [2019-09-20 13:32:58,606 INFO L636 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 [2019-09-20 13:32:58,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1361 states. [2019-09-20 13:32:58,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1361 to 1336. [2019-09-20 13:32:58,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1336 states. [2019-09-20 13:32:58,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1659 transitions. [2019-09-20 13:32:58,642 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1659 transitions. Word has length 112 [2019-09-20 13:32:58,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:32:58,643 INFO L475 AbstractCegarLoop]: Abstraction has 1336 states and 1659 transitions. [2019-09-20 13:32:58,643 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:32:58,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1659 transitions. [2019-09-20 13:32:58,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-09-20 13:32:58,659 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:32:58,659 INFO L407 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] [2019-09-20 13:32:58,659 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:32:58,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:32:58,660 INFO L82 PathProgramCache]: Analyzing trace with hash 971083495, now seen corresponding path program 1 times [2019-09-20 13:32:58,660 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:32:58,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:58,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:32:58,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:58,667 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:32:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:32:58,973 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:32:59,013 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:32:59,015 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:32:59,016 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:32:59,016 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:32:59,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:32:59,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:32:59,017 INFO L87 Difference]: Start difference. First operand 1336 states and 1659 transitions. Second operand 6 states. [2019-09-20 13:33:02,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:33:02,174 INFO L93 Difference]: Finished difference Result 2026 states and 2527 transitions. [2019-09-20 13:33:02,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:33:02,174 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 112 [2019-09-20 13:33:02,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:33:02,184 INFO L225 Difference]: With dead ends: 2026 [2019-09-20 13:33:02,184 INFO L226 Difference]: Without dead ends: 2026 [2019-09-20 13:33:02,185 INFO L636 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 [2019-09-20 13:33:02,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2026 states. [2019-09-20 13:33:02,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2026 to 2008. [2019-09-20 13:33:02,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2008 states. [2019-09-20 13:33:02,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 2511 transitions. [2019-09-20 13:33:02,235 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 2511 transitions. Word has length 112 [2019-09-20 13:33:02,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:33:02,235 INFO L475 AbstractCegarLoop]: Abstraction has 2008 states and 2511 transitions. [2019-09-20 13:33:02,235 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:33:02,236 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 2511 transitions. [2019-09-20 13:33:02,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-09-20 13:33:02,239 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:33:02,239 INFO L407 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] [2019-09-20 13:33:02,239 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:33:02,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:33:02,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1928323846, now seen corresponding path program 1 times [2019-09-20 13:33:02,240 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:33:02,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:33:02,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:33:02,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:33:02,245 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:33:02,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:33:02,530 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:33:02,531 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:33:02,531 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:33:02,531 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:33:02,532 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:33:02,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:33:02,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:33:02,533 INFO L87 Difference]: Start difference. First operand 2008 states and 2511 transitions. Second operand 6 states. [2019-09-20 13:33:05,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:33:05,419 INFO L93 Difference]: Finished difference Result 4043 states and 5085 transitions. [2019-09-20 13:33:05,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-20 13:33:05,420 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2019-09-20 13:33:05,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:33:05,439 INFO L225 Difference]: With dead ends: 4043 [2019-09-20 13:33:05,439 INFO L226 Difference]: Without dead ends: 4013 [2019-09-20 13:33:05,440 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:33:05,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4013 states. [2019-09-20 13:33:05,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4013 to 3948. [2019-09-20 13:33:05,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3948 states. [2019-09-20 13:33:05,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3948 states to 3948 states and 4967 transitions. [2019-09-20 13:33:05,536 INFO L78 Accepts]: Start accepts. Automaton has 3948 states and 4967 transitions. Word has length 132 [2019-09-20 13:33:05,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:33:05,536 INFO L475 AbstractCegarLoop]: Abstraction has 3948 states and 4967 transitions. [2019-09-20 13:33:05,536 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:33:05,536 INFO L276 IsEmpty]: Start isEmpty. Operand 3948 states and 4967 transitions. [2019-09-20 13:33:05,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-09-20 13:33:05,541 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:33:05,541 INFO L407 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:33:05,542 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:33:05,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:33:05,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1480929588, now seen corresponding path program 1 times [2019-09-20 13:33:05,542 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:33:05,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:33:05,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:33:05,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:33:05,548 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:33:05,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:33:05,773 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:33:05,773 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:33:05,773 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:33:05,774 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:33:05,774 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:33:05,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:33:05,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:33:05,775 INFO L87 Difference]: Start difference. First operand 3948 states and 4967 transitions. Second operand 3 states. [2019-09-20 13:33:05,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:33:05,796 INFO L93 Difference]: Finished difference Result 2758 states and 3419 transitions. [2019-09-20 13:33:05,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:33:05,798 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 140 [2019-09-20 13:33:05,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:33:05,809 INFO L225 Difference]: With dead ends: 2758 [2019-09-20 13:33:05,810 INFO L226 Difference]: Without dead ends: 2758 [2019-09-20 13:33:05,811 INFO L636 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 [2019-09-20 13:33:05,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2758 states. [2019-09-20 13:33:05,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2758 to 2758. [2019-09-20 13:33:05,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2758 states. [2019-09-20 13:33:05,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2758 states to 2758 states and 3419 transitions. [2019-09-20 13:33:05,896 INFO L78 Accepts]: Start accepts. Automaton has 2758 states and 3419 transitions. Word has length 140 [2019-09-20 13:33:05,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:33:05,897 INFO L475 AbstractCegarLoop]: Abstraction has 2758 states and 3419 transitions. [2019-09-20 13:33:05,897 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:33:05,897 INFO L276 IsEmpty]: Start isEmpty. Operand 2758 states and 3419 transitions. [2019-09-20 13:33:05,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-09-20 13:33:05,902 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:33:05,902 INFO L407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:33:05,902 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:33:05,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:33:05,903 INFO L82 PathProgramCache]: Analyzing trace with hash -16580239, now seen corresponding path program 1 times [2019-09-20 13:33:05,903 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:33:05,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:33:05,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:33:05,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:33:05,908 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:33:06,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:33:06,337 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-20 13:33:06,337 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:33:06,338 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:33:06,338 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:33:06,338 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:33:06,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:33:06,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:33:06,339 INFO L87 Difference]: Start difference. First operand 2758 states and 3419 transitions. Second operand 8 states.