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 -i ../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 16:09:05,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 16:09:05,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 16:09:05,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 16:09:05,281 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 16:09:05,282 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 16:09:05,284 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 16:09:05,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 16:09:05,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 16:09:05,299 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 16:09:05,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 16:09:05,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 16:09:05,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 16:09:05,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 16:09:05,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 16:09:05,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 16:09:05,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 16:09:05,314 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 16:09:05,316 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 16:09:05,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 16:09:05,323 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 16:09:05,325 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 16:09:05,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 16:09:05,329 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 16:09:05,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-08 16:09:05,332 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-08 16:09:05,332 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-08 16:09:05,335 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-08 16:09:05,336 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-08 16:09:05,338 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-08 16:09:05,338 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 16:09:05,339 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 16:09:05,339 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 16:09:05,340 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 16:09:05,341 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 16:09:05,341 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 16:09:05,342 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 16:09:05,342 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 16:09:05,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 16:09:05,343 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 16:09:05,344 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 16:09:05,345 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 [2019-09-08 16:09:05,359 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 16:09:05,360 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 16:09:05,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 16:09:05,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 16:09:05,362 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 16:09:05,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 16:09:05,362 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 16:09:05,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 16:09:05,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 16:09:05,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 16:09:05,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 16:09:05,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 16:09:05,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 16:09:05,364 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 16:09:05,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 16:09:05,364 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 16:09:05,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 16:09:05,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 16:09:05,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 16:09:05,365 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 16:09:05,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 16:09:05,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 16:09:05,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 16:09:05,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 16:09:05,367 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 16:09:05,367 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 16:09:05,367 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 16:09:05,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 16:09:05,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 16:09:05,432 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 16:09:05,452 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 16:09:05,456 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 16:09:05,457 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 16:09:05,458 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 16:09:05,459 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2019-09-08 16:09:05,537 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/600dc4387/8fb7d0af13164775b9693f2ce842a910/FLAG067aa4e8f [2019-09-08 16:09:06,421 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 16:09:06,422 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2019-09-08 16:09:06,477 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/600dc4387/8fb7d0af13164775b9693f2ce842a910/FLAG067aa4e8f [2019-09-08 16:09:06,838 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/600dc4387/8fb7d0af13164775b9693f2ce842a910 [2019-09-08 16:09:06,850 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 16:09:06,851 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 16:09:06,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 16:09:06,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 16:09:06,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 16:09:06,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 04:09:06" (1/1) ... [2019-09-08 16:09:06,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30a45d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:09:06, skipping insertion in model container [2019-09-08 16:09:06,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 04:09:06" (1/1) ... [2019-09-08 16:09:06,868 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 16:09:07,035 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 16:09:09,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 16:09:09,327 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 16:09:09,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 16:09:10,257 INFO L192 MainTranslator]: Completed translation [2019-09-08 16:09:10,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:09:10 WrapperNode [2019-09-08 16:09:10,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 16:09:10,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 16:09:10,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 16:09:10,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 16:09:10,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:09:10" (1/1) ... [2019-09-08 16:09:10,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:09:10" (1/1) ... [2019-09-08 16:09:10,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:09:10" (1/1) ... [2019-09-08 16:09:10,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:09:10" (1/1) ... [2019-09-08 16:09:10,561 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:09:10" (1/1) ... [2019-09-08 16:09:10,610 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:09:10" (1/1) ... [2019-09-08 16:09:10,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:09:10" (1/1) ... [2019-09-08 16:09:10,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 16:09:10,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 16:09:10,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 16:09:10,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 16:09:10,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:09:10" (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 [2019-09-08 16:09:10,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 16:09:10,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 16:09:10,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-09-08 16:09:10,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2019-09-08 16:09:10,862 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2019-09-08 16:09:10,863 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2019-09-08 16:09:10,863 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2019-09-08 16:09:10,863 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2019-09-08 16:09:10,863 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2019-09-08 16:09:10,863 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2019-09-08 16:09:10,864 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2019-09-08 16:09:10,864 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2019-09-08 16:09:10,866 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-09-08 16:09:10,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2019-09-08 16:09:10,868 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-09-08 16:09:10,868 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-09-08 16:09:10,870 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-09-08 16:09:10,871 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-09-08 16:09:10,871 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2019-09-08 16:09:10,871 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-09-08 16:09:10,872 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-09-08 16:09:10,872 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-09-08 16:09:10,872 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2019-09-08 16:09:10,872 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-09-08 16:09:10,872 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2019-09-08 16:09:10,872 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-09-08 16:09:10,872 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2019-09-08 16:09:10,873 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2019-09-08 16:09:10,873 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-09-08 16:09:10,873 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-09-08 16:09:10,873 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2019-09-08 16:09:10,874 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_mark_last_busy [2019-09-08 16:09:10,874 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2019-09-08 16:09:10,874 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_interface_claimed [2019-09-08 16:09:10,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-09-08 16:09:10,874 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_tty_driver [2019-09-08 16:09:10,874 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_get_baud_rate [2019-09-08 16:09:10,874 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_get [2019-09-08 16:09:10,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-09-08 16:09:10,875 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-09-08 16:09:10,875 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-09-08 16:09:10,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-08 16:09:10,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-09-08 16:09:10,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-09-08 16:09:10,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-08 16:09:10,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-09-08 16:09:10,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-08 16:09:10,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-08 16:09:10,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-08 16:09:10,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-09-08 16:09:10,876 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string [2019-09-08 16:09:10,876 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2019-09-08 16:09:10,877 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_get_by_index [2019-09-08 16:09:10,877 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_alloc_minor [2019-09-08 16:09:10,877 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_release_minor [2019-09-08 16:09:10,877 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_msg [2019-09-08 16:09:10,877 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_wb_alloc [2019-09-08 16:09:10,877 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_wb_is_avail [2019-09-08 16:09:10,877 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_done [2019-09-08 16:09:10,878 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_start_wb [2019-09-08 16:09:10,878 INFO L138 BoogieDeclarations]: Found implementation of procedure show_caps [2019-09-08 16:09:10,878 INFO L138 BoogieDeclarations]: Found implementation of procedure show_country_codes [2019-09-08 16:09:10,878 INFO L138 BoogieDeclarations]: Found implementation of procedure show_country_rel_date [2019-09-08 16:09:10,878 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_irq [2019-09-08 16:09:10,879 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urb [2019-09-08 16:09:10,879 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urbs [2019-09-08 16:09:10,879 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_process_read_urb [2019-09-08 16:09:10,879 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_bulk_callback [2019-09-08 16:09:10,879 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_bulk [2019-09-08 16:09:10,880 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_softint [2019-09-08 16:09:10,880 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_install [2019-09-08 16:09:10,880 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_open [2019-09-08 16:09:10,880 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_activate [2019-09-08 16:09:10,880 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_destruct [2019-09-08 16:09:10,881 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_shutdown [2019-09-08 16:09:10,881 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_cleanup [2019-09-08 16:09:10,881 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_hangup [2019-09-08 16:09:10,882 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_close [2019-09-08 16:09:10,882 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_write [2019-09-08 16:09:10,882 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_write_room [2019-09-08 16:09:10,882 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_chars_in_buffer [2019-09-08 16:09:10,882 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_throttle [2019-09-08 16:09:10,882 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_unthrottle [2019-09-08 16:09:10,882 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_break_ctl [2019-09-08 16:09:10,883 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmget [2019-09-08 16:09:10,883 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmset [2019-09-08 16:09:10,883 INFO L138 BoogieDeclarations]: Found implementation of procedure get_serial_info [2019-09-08 16:09:10,884 INFO L138 BoogieDeclarations]: Found implementation of procedure set_serial_info [2019-09-08 16:09:10,884 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_ioctl [2019-09-08 16:09:10,884 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_set_termios [2019-09-08 16:09:10,885 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_buffers_free [2019-09-08 16:09:10,886 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_buffers_free [2019-09-08 16:09:10,886 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_buffers_alloc [2019-09-08 16:09:10,886 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_probe [2019-09-08 16:09:10,886 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_data_traffic [2019-09-08 16:09:10,886 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_disconnect [2019-09-08 16:09:10,886 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_suspend [2019-09-08 16:09:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_resume [2019-09-08 16:09:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_reset_resume [2019-09-08 16:09:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_init [2019-09-08 16:09:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_exit [2019-09-08 16:09:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2019-09-08 16:09:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_port_operations_3 [2019-09-08 16:09:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_tty_operations_1 [2019-09-08 16:09:10,888 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 16:09:10,888 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-09-08 16:09:10,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2019-09-08 16:09:10,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_3 [2019-09-08 16:09:10,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_6 [2019-09-08 16:09:10,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_7 [2019-09-08 16:09:10,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_autopm_get_interface_8 [2019-09-08 16:09:10,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_9 [2019-09-08 16:09:10,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_autopm_put_interface_10 [2019-09-08 16:09:10,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_autopm_put_interface_11 [2019-09-08 16:09:10,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf_12 [2019-09-08 16:09:10,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_autopm_get_interface_13 [2019-09-08 16:09:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_autopm_put_interface_14 [2019-09-08 16:09:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_15 [2019-09-08 16:09:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_16 [2019-09-08 16:09:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_17 [2019-09-08 16:09:10,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_18 [2019-09-08 16:09:10,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_19 [2019-09-08 16:09:10,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_22 [2019-09-08 16:09:10,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_26 [2019-09-08 16:09:10,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_27 [2019-09-08 16:09:10,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_28 [2019-09-08 16:09:10,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_32 [2019-09-08 16:09:10,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_33 [2019-09-08 16:09:10,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_34 [2019-09-08 16:09:10,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_37 [2019-09-08 16:09:10,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_39 [2019-09-08 16:09:10,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_40 [2019-09-08 16:09:10,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2019-09-08 16:09:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2019-09-08 16:09:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2019-09-08 16:09:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2019-09-08 16:09:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2019-09-08 16:09:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2019-09-08 16:09:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2019-09-08 16:09:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2019-09-08 16:09:10,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2019-09-08 16:09:10,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2019-09-08 16:09:10,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2019-09-08 16:09:10,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2019-09-08 16:09:10,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2019-09-08 16:09:10,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2019-09-08 16:09:10,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2019-09-08 16:09:10,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2019-09-08 16:09:10,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-08 16:09:10,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2019-09-08 16:09:10,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2019-09-08 16:09:10,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-09-08 16:09:10,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-09-08 16:09:10,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __tty_alloc_driver [2019-09-08 16:09:10,907 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-09-08 16:09:10,907 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-09-08 16:09:10,907 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-09-08 16:09:10,908 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-09-08 16:09:10,908 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2019-09-08 16:09:10,908 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-09-08 16:09:10,909 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-09-08 16:09:10,910 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2019-09-08 16:09:10,910 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-09-08 16:09:10,910 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2019-09-08 16:09:10,910 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2019-09-08 16:09:10,910 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-09-08 16:09:10,911 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2019-09-08 16:09:10,911 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2019-09-08 16:09:10,911 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2019-09-08 16:09:10,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-08 16:09:10,911 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2019-09-08 16:09:10,911 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-09-08 16:09:10,911 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-09-08 16:09:10,912 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-09-08 16:09:10,912 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-09-08 16:09:10,912 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2019-09-08 16:09:10,912 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2019-09-08 16:09:10,912 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2019-09-08 16:09:10,912 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2019-09-08 16:09:10,912 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2019-09-08 16:09:10,913 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_close [2019-09-08 16:09:10,913 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_hangup [2019-09-08 16:09:10,913 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_init [2019-09-08 16:09:10,913 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_open [2019-09-08 16:09:10,913 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_put [2019-09-08 16:09:10,913 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_register_device [2019-09-08 16:09:10,913 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2019-09-08 16:09:10,914 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_hangup [2019-09-08 16:09:10,914 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_wakeup [2019-09-08 16:09:10,914 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_driver [2019-09-08 16:09:10,914 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_set_operations [2019-09-08 16:09:10,914 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_standard_install [2019-09-08 16:09:10,914 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_termios_baud_rate [2019-09-08 16:09:10,915 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_device [2019-09-08 16:09:10,915 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2019-09-08 16:09:10,915 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_vhangup [2019-09-08 16:09:10,915 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-09-08 16:09:10,915 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface_async [2019-09-08 16:09:10,915 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2019-09-08 16:09:10,915 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-09-08 16:09:10,916 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-09-08 16:09:10,916 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_claim_interface [2019-09-08 16:09:10,916 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2019-09-08 16:09:10,916 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-09-08 16:09:10,916 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intf [2019-09-08 16:09:10,916 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2019-09-08 16:09:10,916 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-09-08 16:09:10,916 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-09-08 16:09:10,917 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-09-08 16:09:10,917 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-09-08 16:09:10,917 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-08 16:09:10,917 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-08 16:09:10,917 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-08 16:09:10,917 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-09-08 16:09:10,918 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-09-08 16:09:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 16:09:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-08 16:09:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-09-08 16:09:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-08 16:09:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2019-09-08 16:09:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2019-09-08 16:09:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 16:09:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2019-09-08 16:09:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2019-09-08 16:09:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2019-09-08 16:09:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2019-09-08 16:09:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2019-09-08 16:09:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2019-09-08 16:09:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2019-09-08 16:09:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2019-09-08 16:09:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-09-08 16:09:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2019-09-08 16:09:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-09-08 16:09:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-09-08 16:09:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-09-08 16:09:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2019-09-08 16:09:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-09-08 16:09:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-09-08 16:09:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-09-08 16:09:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-09-08 16:09:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-09-08 16:09:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-09-08 16:09:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2019-09-08 16:09:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2019-09-08 16:09:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-09-08 16:09:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-08 16:09:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2019-09-08 16:09:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-09-08 16:09:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-09-08 16:09:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2019-09-08 16:09:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-09-08 16:09:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-09-08 16:09:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2019-09-08 16:09:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-09-08 16:09:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-09-08 16:09:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-09-08 16:09:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2019-09-08 16:09:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-09-08 16:09:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2019-09-08 16:09:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-09-08 16:09:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2019-09-08 16:09:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2019-09-08 16:09:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2019-09-08 16:09:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2019-09-08 16:09:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2019-09-08 16:09:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-09-08 16:09:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-09-08 16:09:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-09-08 16:09:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-09-08 16:09:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-09-08 16:09:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-09-08 16:09:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 16:09:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-09-08 16:09:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2019-09-08 16:09:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2019-09-08 16:09:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2019-09-08 16:09:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-09-08 16:09:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2019-09-08 16:09:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-09-08 16:09:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2019-09-08 16:09:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_mark_last_busy [2019-09-08 16:09:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 16:09:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_3 [2019-09-08 16:09:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_22 [2019-09-08 16:09:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intf [2019-09-08 16:09:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf_12 [2019-09-08 16:09:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-09-08 16:09:10,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_autopm_get_interface_8 [2019-09-08 16:09:10,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_autopm_get_interface_13 [2019-09-08 16:09:10,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_autopm_put_interface_10 [2019-09-08 16:09:10,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_autopm_put_interface_11 [2019-09-08 16:09:10,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_autopm_put_interface_14 [2019-09-08 16:09:10,935 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface_async [2019-09-08 16:09:10,935 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2019-09-08 16:09:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2019-09-08 16:09:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_claim_interface [2019-09-08 16:09:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure usb_interface_claimed [2019-09-08 16:09:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-08 16:09:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2019-09-08 16:09:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2019-09-08 16:09:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-09-08 16:09:10,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_39 [2019-09-08 16:09:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-09-08 16:09:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_40 [2019-09-08 16:09:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_18 [2019-09-08 16:09:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_17 [2019-09-08 16:09:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_15 [2019-09-08 16:09:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_16 [2019-09-08 16:09:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_19 [2019-09-08 16:09:10,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_26 [2019-09-08 16:09:10,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_27 [2019-09-08 16:09:10,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_28 [2019-09-08 16:09:10,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_32 [2019-09-08 16:09:10,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_33 [2019-09-08 16:09:10,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_34 [2019-09-08 16:09:10,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2019-09-08 16:09:10,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_6 [2019-09-08 16:09:10,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_7 [2019-09-08 16:09:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_9 [2019-09-08 16:09:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_37 [2019-09-08 16:09:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-09-08 16:09:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-09-08 16:09:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-09-08 16:09:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-09-08 16:09:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-09-08 16:09:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure __tty_alloc_driver [2019-09-08 16:09:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2019-09-08 16:09:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure tty_set_operations [2019-09-08 16:09:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_tty_driver [2019-09-08 16:09:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2019-09-08 16:09:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_driver [2019-09-08 16:09:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2019-09-08 16:09:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_device [2019-09-08 16:09:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure tty_vhangup [2019-09-08 16:09:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure tty_termios_baud_rate [2019-09-08 16:09:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure tty_get_baud_rate [2019-09-08 16:09:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure tty_standard_install [2019-09-08 16:09:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_init [2019-09-08 16:09:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_register_device [2019-09-08 16:09:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_put [2019-09-08 16:09:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_get [2019-09-08 16:09:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2019-09-08 16:09:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_hangup [2019-09-08 16:09:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_hangup [2019-09-08 16:09:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_wakeup [2019-09-08 16:09:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_close [2019-09-08 16:09:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_open [2019-09-08 16:09:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2019-09-08 16:09:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2019-09-08 16:09:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2019-09-08 16:09:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2019-09-08 16:09:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2019-09-08 16:09:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2019-09-08 16:09:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2019-09-08 16:09:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2019-09-08 16:09:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2019-09-08 16:09:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2019-09-08 16:09:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2019-09-08 16:09:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-08 16:09:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-08 16:09:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-09-08 16:09:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-09-08 16:09:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-09-08 16:09:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-08 16:09:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-08 16:09:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-08 16:09:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-08 16:09:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-08 16:09:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-08 16:09:10,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-08 16:09:10,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-08 16:09:10,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-09-08 16:09:10,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-09-08 16:09:10,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-09-08 16:09:10,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-08 16:09:10,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-09-08 16:09:10,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-08 16:09:10,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-08 16:09:10,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-09-08 16:09:10,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2019-09-08 16:09:10,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_port_operations_3 [2019-09-08 16:09:10,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_tty_operations_1 [2019-09-08 16:09:10,946 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2019-09-08 16:09:10,946 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2019-09-08 16:09:10,946 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string [2019-09-08 16:09:10,946 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2019-09-08 16:09:10,947 INFO L130 BoogieDeclarations]: Found specification of procedure acm_get_by_index [2019-09-08 16:09:10,947 INFO L130 BoogieDeclarations]: Found specification of procedure acm_alloc_minor [2019-09-08 16:09:10,947 INFO L130 BoogieDeclarations]: Found specification of procedure acm_release_minor [2019-09-08 16:09:10,947 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_msg [2019-09-08 16:09:10,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 16:09:10,947 INFO L130 BoogieDeclarations]: Found specification of procedure acm_wb_alloc [2019-09-08 16:09:10,947 INFO L130 BoogieDeclarations]: Found specification of procedure acm_wb_is_avail [2019-09-08 16:09:10,949 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_done [2019-09-08 16:09:10,949 INFO L130 BoogieDeclarations]: Found specification of procedure acm_start_wb [2019-09-08 16:09:10,949 INFO L130 BoogieDeclarations]: Found specification of procedure show_caps [2019-09-08 16:09:10,949 INFO L130 BoogieDeclarations]: Found specification of procedure show_country_codes [2019-09-08 16:09:10,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-09-08 16:09:10,949 INFO L130 BoogieDeclarations]: Found specification of procedure show_country_rel_date [2019-09-08 16:09:10,950 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_irq [2019-09-08 16:09:10,950 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urb [2019-09-08 16:09:10,950 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urbs [2019-09-08 16:09:10,950 INFO L130 BoogieDeclarations]: Found specification of procedure acm_process_read_urb [2019-09-08 16:09:10,951 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_bulk_callback [2019-09-08 16:09:10,951 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_bulk [2019-09-08 16:09:10,951 INFO L130 BoogieDeclarations]: Found specification of procedure acm_softint [2019-09-08 16:09:10,951 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_install [2019-09-08 16:09:10,951 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_open [2019-09-08 16:09:10,951 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_activate [2019-09-08 16:09:10,951 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_destruct [2019-09-08 16:09:10,951 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_shutdown [2019-09-08 16:09:10,951 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_cleanup [2019-09-08 16:09:10,952 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_hangup [2019-09-08 16:09:10,952 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_close [2019-09-08 16:09:10,952 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_write [2019-09-08 16:09:10,952 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_write_room [2019-09-08 16:09:10,952 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_chars_in_buffer [2019-09-08 16:09:10,952 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_throttle [2019-09-08 16:09:10,952 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_unthrottle [2019-09-08 16:09:10,952 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_break_ctl [2019-09-08 16:09:10,953 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmget [2019-09-08 16:09:10,953 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmset [2019-09-08 16:09:10,953 INFO L130 BoogieDeclarations]: Found specification of procedure get_serial_info [2019-09-08 16:09:10,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-08 16:09:10,953 INFO L130 BoogieDeclarations]: Found specification of procedure set_serial_info [2019-09-08 16:09:10,953 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_ioctl [2019-09-08 16:09:10,953 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_set_termios [2019-09-08 16:09:10,953 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_buffers_free [2019-09-08 16:09:10,954 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_buffers_free [2019-09-08 16:09:10,954 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_buffers_alloc [2019-09-08 16:09:10,954 INFO L130 BoogieDeclarations]: Found specification of procedure acm_probe [2019-09-08 16:09:10,954 INFO L130 BoogieDeclarations]: Found specification of procedure stop_data_traffic [2019-09-08 16:09:10,954 INFO L130 BoogieDeclarations]: Found specification of procedure acm_disconnect [2019-09-08 16:09:10,954 INFO L130 BoogieDeclarations]: Found specification of procedure acm_suspend [2019-09-08 16:09:10,954 INFO L130 BoogieDeclarations]: Found specification of procedure acm_resume [2019-09-08 16:09:10,954 INFO L130 BoogieDeclarations]: Found specification of procedure acm_reset_resume [2019-09-08 16:09:10,954 INFO L130 BoogieDeclarations]: Found specification of procedure acm_init [2019-09-08 16:09:10,955 INFO L130 BoogieDeclarations]: Found specification of procedure acm_exit [2019-09-08 16:09:10,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-08 16:09:10,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-08 16:09:10,955 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 16:09:10,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2019-09-08 16:09:10,955 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-09-08 16:09:10,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2019-09-08 16:09:10,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2019-09-08 16:09:10,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2019-09-08 16:09:10,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2019-09-08 16:09:10,956 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-08 16:09:10,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-08 16:09:10,956 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-08 16:09:10,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 16:09:10,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-08 16:09:10,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-08 16:09:10,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 16:09:10,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-09-08 16:09:10,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-09-08 16:09:10,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-09-08 16:09:10,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-09-08 16:09:12,415 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-08 16:09:23,066 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2019-09-08 16:09:29,412 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 16:09:29,412 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-08 16:09:29,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 04:09:29 BoogieIcfgContainer [2019-09-08 16:09:29,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 16:09:29,417 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 16:09:29,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 16:09:29,421 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 16:09:29,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 04:09:06" (1/3) ... [2019-09-08 16:09:29,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@573d3d56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 04:09:29, skipping insertion in model container [2019-09-08 16:09:29,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:09:10" (2/3) ... [2019-09-08 16:09:29,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@573d3d56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 04:09:29, skipping insertion in model container [2019-09-08 16:09:29,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 04:09:29" (3/3) ... [2019-09-08 16:09:29,428 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2019-09-08 16:09:29,441 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 16:09:29,458 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 16:09:29,479 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 16:09:29,529 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 16:09:29,530 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 16:09:29,530 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 16:09:29,530 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 16:09:29,530 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 16:09:29,530 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 16:09:29,531 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 16:09:29,531 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 16:09:29,531 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 16:09:29,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1930 states. [2019-09-08 16:09:29,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-09-08 16:09:29,627 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:09:29,628 INFO L399 BasicCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:09:29,630 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:09:29,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:09:29,635 INFO L82 PathProgramCache]: Analyzing trace with hash -805921336, now seen corresponding path program 1 times [2019-09-08 16:09:29,636 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:09:29,637 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:09:29,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:29,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:09:29,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:30,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:09:31,844 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2019-09-08 16:09:31,847 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:09:31,848 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:09:31,853 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:09:31,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:09:31,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:09:31,873 INFO L87 Difference]: Start difference. First operand 1930 states. Second operand 3 states. [2019-09-08 16:09:35,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:09:35,419 INFO L93 Difference]: Finished difference Result 5551 states and 7406 transitions. [2019-09-08 16:09:35,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:09:35,421 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2019-09-08 16:09:35,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:09:35,482 INFO L225 Difference]: With dead ends: 5551 [2019-09-08 16:09:35,483 INFO L226 Difference]: Without dead ends: 3644 [2019-09-08 16:09:35,501 INFO L628 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 [2019-09-08 16:09:35,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3644 states. [2019-09-08 16:09:35,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3644 to 3641. [2019-09-08 16:09:35,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3641 states. [2019-09-08 16:09:35,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3641 states to 3641 states and 4792 transitions. [2019-09-08 16:09:35,885 INFO L78 Accepts]: Start accepts. Automaton has 3641 states and 4792 transitions. Word has length 133 [2019-09-08 16:09:35,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:09:35,887 INFO L475 AbstractCegarLoop]: Abstraction has 3641 states and 4792 transitions. [2019-09-08 16:09:35,887 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:09:35,887 INFO L276 IsEmpty]: Start isEmpty. Operand 3641 states and 4792 transitions. [2019-09-08 16:09:35,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-09-08 16:09:35,919 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:09:35,919 INFO L399 BasicCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:09:35,920 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:09:35,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:09:35,923 INFO L82 PathProgramCache]: Analyzing trace with hash -91901269, now seen corresponding path program 1 times [2019-09-08 16:09:35,923 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:09:35,923 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:09:35,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:35,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:09:35,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:09:36,724 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2019-09-08 16:09:36,724 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:09:36,724 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:09:36,731 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:09:36,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:09:36,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:09:36,732 INFO L87 Difference]: Start difference. First operand 3641 states and 4792 transitions. Second operand 3 states. [2019-09-08 16:09:37,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:09:37,137 INFO L93 Difference]: Finished difference Result 10844 states and 14527 transitions. [2019-09-08 16:09:37,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:09:37,138 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-09-08 16:09:37,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:09:37,209 INFO L225 Difference]: With dead ends: 10844 [2019-09-08 16:09:37,209 INFO L226 Difference]: Without dead ends: 7242 [2019-09-08 16:09:37,233 INFO L628 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 [2019-09-08 16:09:37,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7242 states. [2019-09-08 16:09:37,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7242 to 7231. [2019-09-08 16:09:37,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7231 states. [2019-09-08 16:09:37,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7231 states to 7231 states and 9617 transitions. [2019-09-08 16:09:37,642 INFO L78 Accepts]: Start accepts. Automaton has 7231 states and 9617 transitions. Word has length 146 [2019-09-08 16:09:37,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:09:37,643 INFO L475 AbstractCegarLoop]: Abstraction has 7231 states and 9617 transitions. [2019-09-08 16:09:37,643 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:09:37,643 INFO L276 IsEmpty]: Start isEmpty. Operand 7231 states and 9617 transitions. [2019-09-08 16:09:37,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-09-08 16:09:37,649 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:09:37,649 INFO L399 BasicCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:09:37,650 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:09:37,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:09:37,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1445130587, now seen corresponding path program 1 times [2019-09-08 16:09:37,650 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:09:37,650 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:09:37,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:37,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:09:37,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:37,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:09:38,262 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2019-09-08 16:09:38,263 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:09:38,263 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:09:38,264 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:09:38,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:09:38,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:09:38,265 INFO L87 Difference]: Start difference. First operand 7231 states and 9617 transitions. Second operand 3 states. [2019-09-08 16:09:38,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:09:38,496 INFO L93 Difference]: Finished difference Result 7233 states and 9618 transitions. [2019-09-08 16:09:38,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:09:38,497 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2019-09-08 16:09:38,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:09:38,550 INFO L225 Difference]: With dead ends: 7233 [2019-09-08 16:09:38,551 INFO L226 Difference]: Without dead ends: 7230 [2019-09-08 16:09:38,557 INFO L628 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 [2019-09-08 16:09:38,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7230 states. [2019-09-08 16:09:39,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7230 to 7230. [2019-09-08 16:09:39,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7230 states. [2019-09-08 16:09:39,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7230 states to 7230 states and 9615 transitions. [2019-09-08 16:09:39,083 INFO L78 Accepts]: Start accepts. Automaton has 7230 states and 9615 transitions. Word has length 147 [2019-09-08 16:09:39,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:09:39,084 INFO L475 AbstractCegarLoop]: Abstraction has 7230 states and 9615 transitions. [2019-09-08 16:09:39,084 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:09:39,085 INFO L276 IsEmpty]: Start isEmpty. Operand 7230 states and 9615 transitions. [2019-09-08 16:09:39,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-09-08 16:09:39,091 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:09:39,091 INFO L399 BasicCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:09:39,091 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:09:39,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:09:39,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1848482734, now seen corresponding path program 1 times [2019-09-08 16:09:39,092 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:09:39,092 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:09:39,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:39,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:09:39,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:39,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:09:39,622 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2019-09-08 16:09:39,623 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:09:39,623 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:09:39,623 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:09:39,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:09:39,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:09:39,624 INFO L87 Difference]: Start difference. First operand 7230 states and 9615 transitions. Second operand 3 states. [2019-09-08 16:09:39,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:09:39,870 INFO L93 Difference]: Finished difference Result 7232 states and 9616 transitions. [2019-09-08 16:09:39,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:09:39,870 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2019-09-08 16:09:39,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:09:39,920 INFO L225 Difference]: With dead ends: 7232 [2019-09-08 16:09:39,920 INFO L226 Difference]: Without dead ends: 7229 [2019-09-08 16:09:39,927 INFO L628 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 [2019-09-08 16:09:39,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7229 states. [2019-09-08 16:09:40,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7229 to 7229. [2019-09-08 16:09:40,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7229 states. [2019-09-08 16:09:40,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7229 states to 7229 states and 9613 transitions. [2019-09-08 16:09:40,391 INFO L78 Accepts]: Start accepts. Automaton has 7229 states and 9613 transitions. Word has length 148 [2019-09-08 16:09:40,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:09:40,392 INFO L475 AbstractCegarLoop]: Abstraction has 7229 states and 9613 transitions. [2019-09-08 16:09:40,392 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:09:40,392 INFO L276 IsEmpty]: Start isEmpty. Operand 7229 states and 9613 transitions. [2019-09-08 16:09:40,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-09-08 16:09:40,401 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:09:40,401 INFO L399 BasicCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:09:40,401 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:09:40,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:09:40,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1467502270, now seen corresponding path program 1 times [2019-09-08 16:09:40,402 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:09:40,402 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:09:40,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:40,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:09:40,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:09:40,913 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2019-09-08 16:09:40,914 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:09:40,914 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:09:40,914 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:09:40,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:09:40,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:09:40,915 INFO L87 Difference]: Start difference. First operand 7229 states and 9613 transitions. Second operand 3 states. [2019-09-08 16:09:41,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:09:41,597 INFO L93 Difference]: Finished difference Result 21514 states and 28992 transitions. [2019-09-08 16:09:41,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:09:41,597 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2019-09-08 16:09:41,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:09:41,692 INFO L225 Difference]: With dead ends: 21514 [2019-09-08 16:09:41,692 INFO L226 Difference]: Without dead ends: 14324 [2019-09-08 16:09:41,732 INFO L628 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 [2019-09-08 16:09:41,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14324 states. [2019-09-08 16:09:42,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14324 to 14284. [2019-09-08 16:09:42,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14284 states. [2019-09-08 16:09:42,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14284 states to 14284 states and 19189 transitions. [2019-09-08 16:09:42,492 INFO L78 Accepts]: Start accepts. Automaton has 14284 states and 19189 transitions. Word has length 149 [2019-09-08 16:09:42,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:09:42,493 INFO L475 AbstractCegarLoop]: Abstraction has 14284 states and 19189 transitions. [2019-09-08 16:09:42,493 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:09:42,494 INFO L276 IsEmpty]: Start isEmpty. Operand 14284 states and 19189 transitions. [2019-09-08 16:09:42,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-09-08 16:09:42,501 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:09:42,501 INFO L399 BasicCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:09:42,503 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:09:42,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:09:42,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1752952655, now seen corresponding path program 1 times [2019-09-08 16:09:42,504 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:09:42,504 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:09:42,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:42,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:09:42,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:09:43,006 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2019-09-08 16:09:43,007 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:09:43,007 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:09:43,007 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:09:43,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:09:43,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:09:43,008 INFO L87 Difference]: Start difference. First operand 14284 states and 19189 transitions. Second operand 3 states. [2019-09-08 16:09:43,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:09:43,459 INFO L93 Difference]: Finished difference Result 14286 states and 19190 transitions. [2019-09-08 16:09:43,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:09:43,460 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 150 [2019-09-08 16:09:43,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:09:43,536 INFO L225 Difference]: With dead ends: 14286 [2019-09-08 16:09:43,537 INFO L226 Difference]: Without dead ends: 14255 [2019-09-08 16:09:43,549 INFO L628 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 [2019-09-08 16:09:43,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14255 states. [2019-09-08 16:09:44,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14255 to 14255. [2019-09-08 16:09:44,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14255 states. [2019-09-08 16:09:44,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14255 states to 14255 states and 19155 transitions. [2019-09-08 16:09:44,492 INFO L78 Accepts]: Start accepts. Automaton has 14255 states and 19155 transitions. Word has length 150 [2019-09-08 16:09:44,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:09:44,493 INFO L475 AbstractCegarLoop]: Abstraction has 14255 states and 19155 transitions. [2019-09-08 16:09:44,493 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:09:44,494 INFO L276 IsEmpty]: Start isEmpty. Operand 14255 states and 19155 transitions. [2019-09-08 16:09:44,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-09-08 16:09:44,503 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:09:44,503 INFO L399 BasicCegarLoop]: trace histogram [14, 14, 14, 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] [2019-09-08 16:09:44,504 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:09:44,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:09:44,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1941154617, now seen corresponding path program 1 times [2019-09-08 16:09:44,504 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:09:44,504 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:09:44,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:44,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:09:44,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:44,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:09:45,024 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2019-09-08 16:09:45,025 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:09:45,025 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:09:45,025 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:09:45,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:09:45,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:09:45,026 INFO L87 Difference]: Start difference. First operand 14255 states and 19155 transitions. Second operand 3 states. [2019-09-08 16:09:47,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:09:47,261 INFO L93 Difference]: Finished difference Result 42084 states and 56481 transitions. [2019-09-08 16:09:47,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:09:47,261 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2019-09-08 16:09:47,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:09:47,428 INFO L225 Difference]: With dead ends: 42084 [2019-09-08 16:09:47,428 INFO L226 Difference]: Without dead ends: 27868 [2019-09-08 16:09:47,509 INFO L628 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 [2019-09-08 16:09:47,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27868 states. [2019-09-08 16:09:48,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27868 to 27784. [2019-09-08 16:09:48,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27784 states. [2019-09-08 16:09:49,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27784 states to 27784 states and 37288 transitions. [2019-09-08 16:09:49,073 INFO L78 Accepts]: Start accepts. Automaton has 27784 states and 37288 transitions. Word has length 178 [2019-09-08 16:09:49,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:09:49,074 INFO L475 AbstractCegarLoop]: Abstraction has 27784 states and 37288 transitions. [2019-09-08 16:09:49,074 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:09:49,074 INFO L276 IsEmpty]: Start isEmpty. Operand 27784 states and 37288 transitions. [2019-09-08 16:09:49,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-09-08 16:09:49,094 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:09:49,094 INFO L399 BasicCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:09:49,095 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:09:49,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:09:49,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1732111684, now seen corresponding path program 1 times [2019-09-08 16:09:49,095 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:09:49,095 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:09:49,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:49,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:09:49,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:09:49,591 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2019-09-08 16:09:49,591 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:09:49,591 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:09:49,592 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:09:49,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:09:49,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:09:49,593 INFO L87 Difference]: Start difference. First operand 27784 states and 37288 transitions. Second operand 3 states. [2019-09-08 16:09:53,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:09:53,233 INFO L93 Difference]: Finished difference Result 76500 states and 102171 transitions. [2019-09-08 16:09:53,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:09:53,233 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 239 [2019-09-08 16:09:53,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:09:53,534 INFO L225 Difference]: With dead ends: 76500 [2019-09-08 16:09:53,534 INFO L226 Difference]: Without dead ends: 48764 [2019-09-08 16:09:53,638 INFO L628 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 [2019-09-08 16:09:53,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48764 states. [2019-09-08 16:09:55,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48764 to 48668. [2019-09-08 16:09:55,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48668 states. [2019-09-08 16:09:55,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48668 states to 48668 states and 64834 transitions. [2019-09-08 16:09:55,725 INFO L78 Accepts]: Start accepts. Automaton has 48668 states and 64834 transitions. Word has length 239 [2019-09-08 16:09:55,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:09:55,726 INFO L475 AbstractCegarLoop]: Abstraction has 48668 states and 64834 transitions. [2019-09-08 16:09:55,726 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:09:55,726 INFO L276 IsEmpty]: Start isEmpty. Operand 48668 states and 64834 transitions. [2019-09-08 16:09:55,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2019-09-08 16:09:55,751 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:09:55,751 INFO L399 BasicCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:09:55,752 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:09:55,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:09:55,752 INFO L82 PathProgramCache]: Analyzing trace with hash -265514286, now seen corresponding path program 1 times [2019-09-08 16:09:55,752 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:09:55,752 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:09:55,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:55,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:09:55,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:09:56,292 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2019-09-08 16:09:56,292 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:09:56,293 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:09:56,293 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:09:56,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:09:56,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:09:56,294 INFO L87 Difference]: Start difference. First operand 48668 states and 64834 transitions. Second operand 3 states. [2019-09-08 16:09:59,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:09:59,305 INFO L93 Difference]: Finished difference Result 122346 states and 162428 transitions. [2019-09-08 16:09:59,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:09:59,305 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 243 [2019-09-08 16:09:59,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:09:59,636 INFO L225 Difference]: With dead ends: 122346 [2019-09-08 16:09:59,636 INFO L226 Difference]: Without dead ends: 73730 [2019-09-08 16:09:59,776 INFO L628 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 [2019-09-08 16:09:59,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73730 states. [2019-09-08 16:10:05,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73730 to 73568. [2019-09-08 16:10:05,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73568 states. [2019-09-08 16:10:05,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73568 states to 73568 states and 97445 transitions. [2019-09-08 16:10:05,492 INFO L78 Accepts]: Start accepts. Automaton has 73568 states and 97445 transitions. Word has length 243 [2019-09-08 16:10:05,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:10:05,492 INFO L475 AbstractCegarLoop]: Abstraction has 73568 states and 97445 transitions. [2019-09-08 16:10:05,492 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:10:05,492 INFO L276 IsEmpty]: Start isEmpty. Operand 73568 states and 97445 transitions. [2019-09-08 16:10:05,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2019-09-08 16:10:05,516 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:10:05,516 INFO L399 BasicCegarLoop]: trace histogram [17, 17, 17, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:10:05,517 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:10:05,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:10:05,517 INFO L82 PathProgramCache]: Analyzing trace with hash 606245106, now seen corresponding path program 1 times [2019-09-08 16:10:05,517 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:10:05,518 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:10:05,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:05,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:10:05,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:05,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:10:06,085 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2019-09-08 16:10:06,086 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:10:06,086 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-08 16:10:06,087 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 16:10:06,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 16:10:06,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-08 16:10:06,087 INFO L87 Difference]: Start difference. First operand 73568 states and 97445 transitions. Second operand 8 states. [2019-09-08 16:10:08,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:10:08,177 INFO L93 Difference]: Finished difference Result 118302 states and 155661 transitions. [2019-09-08 16:10:08,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-08 16:10:08,178 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 243 [2019-09-08 16:10:08,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:10:08,472 INFO L225 Difference]: With dead ends: 118302 [2019-09-08 16:10:08,472 INFO L226 Difference]: Without dead ends: 71662 [2019-09-08 16:10:08,596 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-09-08 16:10:08,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71662 states. [2019-09-08 16:10:13,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71662 to 71585. [2019-09-08 16:10:13,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71585 states. [2019-09-08 16:10:14,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71585 states to 71585 states and 94740 transitions. [2019-09-08 16:10:14,033 INFO L78 Accepts]: Start accepts. Automaton has 71585 states and 94740 transitions. Word has length 243 [2019-09-08 16:10:14,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:10:14,034 INFO L475 AbstractCegarLoop]: Abstraction has 71585 states and 94740 transitions. [2019-09-08 16:10:14,034 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 16:10:14,034 INFO L276 IsEmpty]: Start isEmpty. Operand 71585 states and 94740 transitions. [2019-09-08 16:10:14,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2019-09-08 16:10:14,055 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:10:14,055 INFO L399 BasicCegarLoop]: trace histogram [17, 17, 17, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:10:14,055 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:10:14,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:10:14,056 INFO L82 PathProgramCache]: Analyzing trace with hash -695196847, now seen corresponding path program 1 times [2019-09-08 16:10:14,056 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:10:14,056 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:10:14,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:14,060 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:10:14,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:10:14,552 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2019-09-08 16:10:14,553 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:10:14,553 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:10:14,554 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:10:14,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:10:14,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:10:14,555 INFO L87 Difference]: Start difference. First operand 71585 states and 94740 transitions. Second operand 3 states. [2019-09-08 16:10:19,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:10:19,770 INFO L93 Difference]: Finished difference Result 177158 states and 234517 transitions. [2019-09-08 16:10:19,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:10:19,771 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 249 [2019-09-08 16:10:19,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:10:20,125 INFO L225 Difference]: With dead ends: 177158 [2019-09-08 16:10:20,126 INFO L226 Difference]: Without dead ends: 105625 [2019-09-08 16:10:20,279 INFO L628 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 [2019-09-08 16:10:20,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105625 states. [2019-09-08 16:10:25,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105625 to 105541. [2019-09-08 16:10:25,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105541 states. [2019-09-08 16:10:26,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105541 states to 105541 states and 139632 transitions. [2019-09-08 16:10:26,047 INFO L78 Accepts]: Start accepts. Automaton has 105541 states and 139632 transitions. Word has length 249 [2019-09-08 16:10:26,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:10:26,048 INFO L475 AbstractCegarLoop]: Abstraction has 105541 states and 139632 transitions. [2019-09-08 16:10:26,048 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:10:26,048 INFO L276 IsEmpty]: Start isEmpty. Operand 105541 states and 139632 transitions. [2019-09-08 16:10:26,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2019-09-08 16:10:26,068 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:10:26,068 INFO L399 BasicCegarLoop]: trace histogram [17, 17, 17, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:10:26,069 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:10:26,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:10:26,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1978052404, now seen corresponding path program 1 times [2019-09-08 16:10:26,069 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:10:26,069 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:10:26,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:26,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:10:26,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:26,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:10:26,676 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2019-09-08 16:10:26,676 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:10:26,677 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 16:10:26,677 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 16:10:26,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 16:10:26,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 16:10:26,678 INFO L87 Difference]: Start difference. First operand 105541 states and 139632 transitions. Second operand 5 states. [2019-09-08 16:10:32,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:10:32,378 INFO L93 Difference]: Finished difference Result 211283 states and 279534 transitions. [2019-09-08 16:10:32,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 16:10:32,378 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 243 [2019-09-08 16:10:32,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:10:32,791 INFO L225 Difference]: With dead ends: 211283 [2019-09-08 16:10:32,792 INFO L226 Difference]: Without dead ends: 105734 [2019-09-08 16:10:32,992 INFO L628 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 [2019-09-08 16:10:33,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105734 states. [2019-09-08 16:10:40,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105734 to 105622. [2019-09-08 16:10:40,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105622 states. [2019-09-08 16:10:41,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105622 states to 105622 states and 139701 transitions. [2019-09-08 16:10:41,091 INFO L78 Accepts]: Start accepts. Automaton has 105622 states and 139701 transitions. Word has length 243 [2019-09-08 16:10:41,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:10:41,092 INFO L475 AbstractCegarLoop]: Abstraction has 105622 states and 139701 transitions. [2019-09-08 16:10:41,092 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 16:10:41,092 INFO L276 IsEmpty]: Start isEmpty. Operand 105622 states and 139701 transitions. [2019-09-08 16:10:41,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2019-09-08 16:10:41,114 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:10:41,115 INFO L399 BasicCegarLoop]: trace histogram [17, 17, 17, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:10:41,115 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:10:41,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:10:41,116 INFO L82 PathProgramCache]: Analyzing trace with hash -2056501160, now seen corresponding path program 1 times [2019-09-08 16:10:41,116 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:10:41,116 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:10:41,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:41,119 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:10:41,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:41,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:10:41,667 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2019-09-08 16:10:41,667 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:10:41,667 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 16:10:41,668 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 16:10:41,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 16:10:41,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-08 16:10:41,669 INFO L87 Difference]: Start difference. First operand 105622 states and 139701 transitions. Second operand 6 states. [2019-09-08 16:10:46,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:10:46,354 INFO L93 Difference]: Finished difference Result 160444 states and 211808 transitions. [2019-09-08 16:10:46,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 16:10:46,355 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 258 [2019-09-08 16:10:46,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:10:46,616 INFO L225 Difference]: With dead ends: 160444 [2019-09-08 16:10:46,616 INFO L226 Difference]: Without dead ends: 54712 [2019-09-08 16:10:46,841 INFO L628 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 [2019-09-08 16:10:46,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54712 states. [2019-09-08 16:10:48,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54712 to 52457. [2019-09-08 16:10:48,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52457 states. [2019-09-08 16:10:48,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52457 states to 52457 states and 69473 transitions. [2019-09-08 16:10:48,819 INFO L78 Accepts]: Start accepts. Automaton has 52457 states and 69473 transitions. Word has length 258 [2019-09-08 16:10:48,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:10:48,820 INFO L475 AbstractCegarLoop]: Abstraction has 52457 states and 69473 transitions. [2019-09-08 16:10:48,820 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 16:10:48,820 INFO L276 IsEmpty]: Start isEmpty. Operand 52457 states and 69473 transitions. [2019-09-08 16:10:48,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2019-09-08 16:10:48,834 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:10:48,834 INFO L399 BasicCegarLoop]: trace histogram [18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:10:48,834 INFO L418 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:10:48,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:10:48,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1098035896, now seen corresponding path program 1 times [2019-09-08 16:10:48,835 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:10:48,835 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:10:48,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:48,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:10:48,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:49,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:10:49,578 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2019-09-08 16:10:49,578 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:10:49,578 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 16:10:49,579 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 16:10:49,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 16:10:49,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 16:10:49,580 INFO L87 Difference]: Start difference. First operand 52457 states and 69473 transitions. Second operand 5 states. [2019-09-08 16:10:54,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:10:54,352 INFO L93 Difference]: Finished difference Result 104924 states and 138966 transitions. [2019-09-08 16:10:54,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 16:10:54,352 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 275 [2019-09-08 16:10:54,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:10:54,556 INFO L225 Difference]: With dead ends: 104924 [2019-09-08 16:10:54,556 INFO L226 Difference]: Without dead ends: 52579 [2019-09-08 16:10:54,659 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-09-08 16:10:54,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52579 states. [2019-09-08 16:10:56,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52579 to 52505. [2019-09-08 16:10:56,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52505 states. [2019-09-08 16:10:56,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52505 states to 52505 states and 69519 transitions. [2019-09-08 16:10:56,340 INFO L78 Accepts]: Start accepts. Automaton has 52505 states and 69519 transitions. Word has length 275 [2019-09-08 16:10:56,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:10:56,341 INFO L475 AbstractCegarLoop]: Abstraction has 52505 states and 69519 transitions. [2019-09-08 16:10:56,341 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 16:10:56,341 INFO L276 IsEmpty]: Start isEmpty. Operand 52505 states and 69519 transitions. [2019-09-08 16:10:56,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2019-09-08 16:10:56,361 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:10:56,361 INFO L399 BasicCegarLoop]: trace histogram [18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:10:56,362 INFO L418 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:10:56,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:10:56,362 INFO L82 PathProgramCache]: Analyzing trace with hash -836170503, now seen corresponding path program 1 times [2019-09-08 16:10:56,362 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:10:56,362 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:10:56,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:56,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:10:56,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:10:57,144 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 623 trivial. 0 not checked. [2019-09-08 16:10:57,144 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:10:57,144 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 16:10:57,145 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 16:10:57,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 16:10:57,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-09-08 16:10:57,146 INFO L87 Difference]: Start difference. First operand 52505 states and 69519 transitions. Second operand 7 states. [2019-09-08 16:11:25,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:11:25,277 INFO L93 Difference]: Finished difference Result 83147 states and 111745 transitions. [2019-09-08 16:11:25,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-08 16:11:25,279 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 275 [2019-09-08 16:11:25,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:11:25,524 INFO L225 Difference]: With dead ends: 83147 [2019-09-08 16:11:25,524 INFO L226 Difference]: Without dead ends: 83144 [2019-09-08 16:11:25,556 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-09-08 16:11:25,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83144 states. [2019-09-08 16:11:27,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83144 to 82925. [2019-09-08 16:11:27,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82925 states. [2019-09-08 16:11:27,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82925 states to 82925 states and 111436 transitions. [2019-09-08 16:11:27,958 INFO L78 Accepts]: Start accepts. Automaton has 82925 states and 111436 transitions. Word has length 275 [2019-09-08 16:11:27,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:11:27,958 INFO L475 AbstractCegarLoop]: Abstraction has 82925 states and 111436 transitions. [2019-09-08 16:11:27,958 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 16:11:27,959 INFO L276 IsEmpty]: Start isEmpty. Operand 82925 states and 111436 transitions. [2019-09-08 16:11:27,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2019-09-08 16:11:27,977 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:11:27,978 INFO L399 BasicCegarLoop]: trace histogram [18, 18, 18, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:11:27,978 INFO L418 AbstractCegarLoop]: === Iteration 16 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:11:27,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:11:27,978 INFO L82 PathProgramCache]: Analyzing trace with hash -337703820, now seen corresponding path program 1 times [2019-09-08 16:11:27,978 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:11:27,978 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:11:27,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:11:27,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:11:27,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:11:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:11:28,659 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 620 trivial. 0 not checked. [2019-09-08 16:11:28,662 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:11:28,662 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 16:11:28,662 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 16:11:28,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 16:11:28,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-08 16:11:28,664 INFO L87 Difference]: Start difference. First operand 82925 states and 111436 transitions. Second operand 6 states. [2019-09-08 16:11:35,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:11:35,966 INFO L93 Difference]: Finished difference Result 227091 states and 304631 transitions. [2019-09-08 16:11:35,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-08 16:11:35,966 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 290 [2019-09-08 16:11:35,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:11:36,430 INFO L225 Difference]: With dead ends: 227091 [2019-09-08 16:11:36,431 INFO L226 Difference]: Without dead ends: 144289 [2019-09-08 16:11:36,565 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-09-08 16:11:36,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144289 states. [2019-09-08 16:11:44,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144289 to 143943. [2019-09-08 16:11:44,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143943 states. [2019-09-08 16:11:45,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143943 states to 143943 states and 192901 transitions. [2019-09-08 16:11:45,170 INFO L78 Accepts]: Start accepts. Automaton has 143943 states and 192901 transitions. Word has length 290 [2019-09-08 16:11:45,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:11:45,170 INFO L475 AbstractCegarLoop]: Abstraction has 143943 states and 192901 transitions. [2019-09-08 16:11:45,170 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 16:11:45,170 INFO L276 IsEmpty]: Start isEmpty. Operand 143943 states and 192901 transitions. [2019-09-08 16:11:45,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2019-09-08 16:11:45,188 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:11:45,188 INFO L399 BasicCegarLoop]: trace histogram [18, 18, 18, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:11:45,188 INFO L418 AbstractCegarLoop]: === Iteration 17 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:11:45,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:11:45,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1367063118, now seen corresponding path program 1 times [2019-09-08 16:11:45,189 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:11:45,189 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:11:45,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:11:45,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:11:45,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:11:45,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:11:45,831 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 632 trivial. 0 not checked. [2019-09-08 16:11:45,832 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:11:45,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-08 16:11:45,833 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-08 16:11:45,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-08 16:11:45,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 16:11:45,833 INFO L87 Difference]: Start difference. First operand 143943 states and 192901 transitions. Second operand 4 states. [2019-09-08 16:11:49,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:11:49,524 INFO L93 Difference]: Finished difference Result 288018 states and 385980 transitions. [2019-09-08 16:11:49,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 16:11:49,525 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 290 [2019-09-08 16:11:49,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:11:50,986 INFO L225 Difference]: With dead ends: 288018 [2019-09-08 16:11:50,987 INFO L226 Difference]: Without dead ends: 144124 [2019-09-08 16:11:51,197 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-08 16:11:51,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144124 states. [2019-09-08 16:12:00,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144124 to 143944. [2019-09-08 16:12:00,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143944 states. [2019-09-08 16:12:00,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143944 states to 143944 states and 192902 transitions. [2019-09-08 16:12:00,799 INFO L78 Accepts]: Start accepts. Automaton has 143944 states and 192902 transitions. Word has length 290 [2019-09-08 16:12:00,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:12:00,800 INFO L475 AbstractCegarLoop]: Abstraction has 143944 states and 192902 transitions. [2019-09-08 16:12:00,800 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-08 16:12:00,800 INFO L276 IsEmpty]: Start isEmpty. Operand 143944 states and 192902 transitions. [2019-09-08 16:12:00,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2019-09-08 16:12:00,820 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:12:00,821 INFO L399 BasicCegarLoop]: trace histogram [18, 18, 18, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:12:00,821 INFO L418 AbstractCegarLoop]: === Iteration 18 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:12:00,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:12:00,822 INFO L82 PathProgramCache]: Analyzing trace with hash 1397685962, now seen corresponding path program 1 times [2019-09-08 16:12:00,822 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:12:00,822 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:12:00,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:12:00,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:12:00,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:12:01,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:12:01,395 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 632 trivial. 0 not checked. [2019-09-08 16:12:01,395 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:12:01,396 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:12:01,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:12:03,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:12:03,891 INFO L256 TraceCheckSpWp]: Trace formula consists of 8421 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-08 16:12:03,920 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:12:04,072 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 224 proven. 1 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2019-09-08 16:12:04,120 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:12:04,121 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2019-09-08 16:12:04,122 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 16:12:04,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 16:12:04,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-09-08 16:12:04,122 INFO L87 Difference]: Start difference. First operand 143944 states and 192902 transitions. Second operand 8 states. [2019-09-08 16:12:12,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:12:12,062 INFO L93 Difference]: Finished difference Result 288199 states and 386401 transitions. [2019-09-08 16:12:12,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-08 16:12:12,062 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 291 [2019-09-08 16:12:12,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:12:13,082 INFO L225 Difference]: With dead ends: 288199 [2019-09-08 16:12:13,083 INFO L226 Difference]: Without dead ends: 144065 [2019-09-08 16:12:13,569 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2019-09-08 16:12:13,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144065 states. [2019-09-08 16:12:21,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144065 to 144065. [2019-09-08 16:12:21,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144065 states. [2019-09-08 16:12:21,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144065 states to 144065 states and 193023 transitions. [2019-09-08 16:12:21,591 INFO L78 Accepts]: Start accepts. Automaton has 144065 states and 193023 transitions. Word has length 291 [2019-09-08 16:12:21,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:12:21,591 INFO L475 AbstractCegarLoop]: Abstraction has 144065 states and 193023 transitions. [2019-09-08 16:12:21,591 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 16:12:21,592 INFO L276 IsEmpty]: Start isEmpty. Operand 144065 states and 193023 transitions. [2019-09-08 16:12:21,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2019-09-08 16:12:21,625 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:12:21,625 INFO L399 BasicCegarLoop]: trace histogram [18, 18, 18, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:12:21,626 INFO L418 AbstractCegarLoop]: === Iteration 19 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:12:21,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:12:21,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1205561522, now seen corresponding path program 2 times [2019-09-08 16:12:21,627 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:12:21,627 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:12:21,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:12:21,631 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:12:21,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:12:21,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:12:22,377 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 632 trivial. 0 not checked. [2019-09-08 16:12:22,378 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:12:22,378 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 16:12:22,413 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:12:36,569 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-08 16:12:36,569 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 16:12:36,770 INFO L256 TraceCheckSpWp]: Trace formula consists of 8427 conjuncts, 5 conjunts are in the unsatisfiable core [2019-09-08 16:12:36,793 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:12:36,932 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 224 proven. 3 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2019-09-08 16:12:37,017 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:12:37,017 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2019-09-08 16:12:37,019 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-08 16:12:37,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-08 16:12:37,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-09-08 16:12:37,021 INFO L87 Difference]: Start difference. First operand 144065 states and 193023 transitions. Second operand 10 states. [2019-09-08 16:12:41,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:12:41,744 INFO L93 Difference]: Finished difference Result 288260 states and 386402 transitions. [2019-09-08 16:12:41,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-08 16:12:41,745 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 292 [2019-09-08 16:12:41,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:12:42,298 INFO L225 Difference]: With dead ends: 288260 [2019-09-08 16:12:42,298 INFO L226 Difference]: Without dead ends: 144126 [2019-09-08 16:12:42,519 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=113, Unknown=0, NotChecked=0, Total=182 [2019-09-08 16:12:42,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144126 states. [2019-09-08 16:12:53,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144126 to 144126. [2019-09-08 16:12:53,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144126 states. [2019-09-08 16:12:53,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144126 states to 144126 states and 193084 transitions. [2019-09-08 16:12:53,512 INFO L78 Accepts]: Start accepts. Automaton has 144126 states and 193084 transitions. Word has length 292 [2019-09-08 16:12:53,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:12:53,513 INFO L475 AbstractCegarLoop]: Abstraction has 144126 states and 193084 transitions. [2019-09-08 16:12:53,513 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-08 16:12:53,513 INFO L276 IsEmpty]: Start isEmpty. Operand 144126 states and 193084 transitions. [2019-09-08 16:12:53,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2019-09-08 16:12:53,534 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:12:53,535 INFO L399 BasicCegarLoop]: trace histogram [18, 18, 18, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:12:53,535 INFO L418 AbstractCegarLoop]: === Iteration 20 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:12:53,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:12:53,536 INFO L82 PathProgramCache]: Analyzing trace with hash -455328822, now seen corresponding path program 3 times [2019-09-08 16:12:53,536 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:12:53,536 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:12:53,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:12:53,539 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 16:12:53,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:12:53,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:12:54,172 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 632 trivial. 0 not checked. [2019-09-08 16:12:54,173 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:12:54,173 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:12:54,231 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-08 16:13:08,082 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-09-08 16:13:08,082 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 16:13:08,318 INFO L256 TraceCheckSpWp]: Trace formula consists of 7374 conjuncts, 15 conjunts are in the unsatisfiable core [2019-09-08 16:13:08,332 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:13:08,528 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 626 trivial. 0 not checked. [2019-09-08 16:13:08,606 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 16:13:08,606 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2019-09-08 16:13:08,608 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-08 16:13:08,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-08 16:13:08,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2019-09-08 16:13:08,609 INFO L87 Difference]: Start difference. First operand 144126 states and 193084 transitions. Second operand 14 states. [2019-09-08 16:13:12,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:13:12,458 INFO L93 Difference]: Finished difference Result 266647 states and 356662 transitions. [2019-09-08 16:13:12,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-08 16:13:12,459 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 293 [2019-09-08 16:13:12,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:13:12,936 INFO L225 Difference]: With dead ends: 266647 [2019-09-08 16:13:12,936 INFO L226 Difference]: Without dead ends: 122573 [2019-09-08 16:13:13,171 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2019-09-08 16:13:13,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122573 states. [2019-09-08 16:13:20,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122573 to 61325. [2019-09-08 16:13:20,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61325 states. [2019-09-08 16:13:20,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61325 states to 61325 states and 81813 transitions. [2019-09-08 16:13:20,307 INFO L78 Accepts]: Start accepts. Automaton has 61325 states and 81813 transitions. Word has length 293 [2019-09-08 16:13:20,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:13:20,308 INFO L475 AbstractCegarLoop]: Abstraction has 61325 states and 81813 transitions. [2019-09-08 16:13:20,308 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-08 16:13:20,308 INFO L276 IsEmpty]: Start isEmpty. Operand 61325 states and 81813 transitions. [2019-09-08 16:13:20,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2019-09-08 16:13:20,344 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:13:20,345 INFO L399 BasicCegarLoop]: trace histogram [18, 18, 18, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:13:20,345 INFO L418 AbstractCegarLoop]: === Iteration 21 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:13:20,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:13:20,346 INFO L82 PathProgramCache]: Analyzing trace with hash -2021840692, now seen corresponding path program 1 times [2019-09-08 16:13:20,346 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:13:20,346 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:13:20,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:13:20,349 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 16:13:20,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:13:20,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:13:20,986 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2019-09-08 16:13:20,986 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:13:20,986 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:13:21,023 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:13:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:13:23,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 8975 conjuncts, 2 conjunts are in the unsatisfiable core [2019-09-08 16:13:23,536 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:13:23,983 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 235 proven. 0 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2019-09-08 16:13:24,040 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 16:13:24,041 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2019-09-08 16:13:24,042 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 16:13:24,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 16:13:24,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-09-08 16:13:24,043 INFO L87 Difference]: Start difference. First operand 61325 states and 81813 transitions. Second operand 7 states. [2019-09-08 16:13:36,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:13:36,733 INFO L93 Difference]: Finished difference Result 166934 states and 221573 transitions. [2019-09-08 16:13:36,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-09-08 16:13:36,733 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 365 [2019-09-08 16:13:36,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:13:37,153 INFO L225 Difference]: With dead ends: 166934 [2019-09-08 16:13:37,154 INFO L226 Difference]: Without dead ends: 105736 [2019-09-08 16:13:37,307 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2019-09-08 16:13:37,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105736 states. [2019-09-08 16:13:40,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105736 to 104305. [2019-09-08 16:13:40,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104305 states. [2019-09-08 16:13:42,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104305 states to 104305 states and 138097 transitions. [2019-09-08 16:13:42,017 INFO L78 Accepts]: Start accepts. Automaton has 104305 states and 138097 transitions. Word has length 365 [2019-09-08 16:13:42,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:13:42,018 INFO L475 AbstractCegarLoop]: Abstraction has 104305 states and 138097 transitions. [2019-09-08 16:13:42,018 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 16:13:42,018 INFO L276 IsEmpty]: Start isEmpty. Operand 104305 states and 138097 transitions. [2019-09-08 16:13:42,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2019-09-08 16:13:42,038 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:13:42,038 INFO L399 BasicCegarLoop]: trace histogram [18, 18, 18, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:13:42,038 INFO L418 AbstractCegarLoop]: === Iteration 22 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:13:42,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:13:42,039 INFO L82 PathProgramCache]: Analyzing trace with hash 901327431, now seen corresponding path program 1 times [2019-09-08 16:13:42,039 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:13:42,039 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:13:42,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:13:42,042 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:13:42,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:13:42,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:13:42,615 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked. [2019-09-08 16:13:42,616 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:13:42,616 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:13:42,617 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:13:42,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:13:42,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:13:42,617 INFO L87 Difference]: Start difference. First operand 104305 states and 138097 transitions. Second operand 3 states. [2019-09-08 16:13:50,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:13:50,839 INFO L93 Difference]: Finished difference Result 272060 states and 360238 transitions. [2019-09-08 16:13:50,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:13:50,840 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 346 [2019-09-08 16:13:50,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:13:51,535 INFO L225 Difference]: With dead ends: 272060 [2019-09-08 16:13:51,536 INFO L226 Difference]: Without dead ends: 167882 [2019-09-08 16:13:51,725 INFO L628 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 [2019-09-08 16:13:51,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167882 states. [2019-09-08 16:14:01,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167882 to 167235. [2019-09-08 16:14:01,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167235 states. [2019-09-08 16:14:01,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167235 states to 167235 states and 220273 transitions. [2019-09-08 16:14:01,807 INFO L78 Accepts]: Start accepts. Automaton has 167235 states and 220273 transitions. Word has length 346 [2019-09-08 16:14:01,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:14:01,808 INFO L475 AbstractCegarLoop]: Abstraction has 167235 states and 220273 transitions. [2019-09-08 16:14:01,808 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:14:01,808 INFO L276 IsEmpty]: Start isEmpty. Operand 167235 states and 220273 transitions. [2019-09-08 16:14:02,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2019-09-08 16:14:02,459 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:14:02,459 INFO L399 BasicCegarLoop]: trace histogram [18, 18, 18, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:14:02,459 INFO L418 AbstractCegarLoop]: === Iteration 23 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:14:02,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:14:02,460 INFO L82 PathProgramCache]: Analyzing trace with hash 2006452003, now seen corresponding path program 1 times [2019-09-08 16:14:02,460 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:14:02,460 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:14:02,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:14:02,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:14:02,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:14:02,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:14:03,131 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 638 trivial. 0 not checked. [2019-09-08 16:14:03,131 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:14:03,132 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:14:03,132 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:14:03,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:14:03,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:14:03,133 INFO L87 Difference]: Start difference. First operand 167235 states and 220273 transitions. Second operand 3 states. [2019-09-08 16:14:15,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:14:15,060 INFO L93 Difference]: Finished difference Result 495067 states and 672074 transitions. [2019-09-08 16:14:15,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:14:15,060 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 345 [2019-09-08 16:14:15,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:14:16,287 INFO L225 Difference]: With dead ends: 495067 [2019-09-08 16:14:16,288 INFO L226 Difference]: Without dead ends: 327959 [2019-09-08 16:14:17,170 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:14:17,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327959 states. [2019-09-08 16:14:33,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327959 to 327593. [2019-09-08 16:14:33,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327593 states. [2019-09-08 16:14:34,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327593 states to 327593 states and 433601 transitions. [2019-09-08 16:14:34,905 INFO L78 Accepts]: Start accepts. Automaton has 327593 states and 433601 transitions. Word has length 345 [2019-09-08 16:14:34,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:14:34,906 INFO L475 AbstractCegarLoop]: Abstraction has 327593 states and 433601 transitions. [2019-09-08 16:14:34,906 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:14:34,906 INFO L276 IsEmpty]: Start isEmpty. Operand 327593 states and 433601 transitions. [2019-09-08 16:14:34,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2019-09-08 16:14:34,930 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:14:34,930 INFO L399 BasicCegarLoop]: trace histogram [18, 18, 18, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:14:34,930 INFO L418 AbstractCegarLoop]: === Iteration 24 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:14:34,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:14:34,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1949603467, now seen corresponding path program 1 times [2019-09-08 16:14:34,931 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:14:34,931 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:14:34,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:14:34,933 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:14:34,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:14:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:14:35,510 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 638 trivial. 0 not checked. [2019-09-08 16:14:35,510 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:14:35,510 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:14:35,511 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:14:35,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:14:35,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:14:35,512 INFO L87 Difference]: Start difference. First operand 327593 states and 433601 transitions. Second operand 3 states. [2019-09-08 16:15:07,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:15:07,452 INFO L93 Difference]: Finished difference Result 929717 states and 1255080 transitions. [2019-09-08 16:15:07,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:15:07,453 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 346 [2019-09-08 16:15:07,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:15:09,643 INFO L225 Difference]: With dead ends: 929717 [2019-09-08 16:15:09,643 INFO L226 Difference]: Without dead ends: 602251 [2019-09-08 16:15:10,299 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:15:10,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602251 states. [2019-09-08 16:15:45,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602251 to 601513. [2019-09-08 16:15:45,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601513 states. [2019-09-08 16:15:47,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601513 states to 601513 states and 790083 transitions. [2019-09-08 16:15:47,737 INFO L78 Accepts]: Start accepts. Automaton has 601513 states and 790083 transitions. Word has length 346 [2019-09-08 16:15:47,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:15:47,738 INFO L475 AbstractCegarLoop]: Abstraction has 601513 states and 790083 transitions. [2019-09-08 16:15:47,738 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:15:47,738 INFO L276 IsEmpty]: Start isEmpty. Operand 601513 states and 790083 transitions. [2019-09-08 16:15:47,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2019-09-08 16:15:47,754 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:15:47,755 INFO L399 BasicCegarLoop]: trace histogram [18, 18, 18, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:15:47,755 INFO L418 AbstractCegarLoop]: === Iteration 25 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:15:47,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:15:47,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1523523326, now seen corresponding path program 1 times [2019-09-08 16:15:47,755 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:15:47,756 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:15:47,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:15:47,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:15:47,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:15:47,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:15:48,240 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2019-09-08 16:15:48,240 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:15:48,240 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 16:15:48,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:15:50,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:15:50,578 INFO L256 TraceCheckSpWp]: Trace formula consists of 8634 conjuncts, 3 conjunts are in the unsatisfiable core [2019-09-08 16:15:50,588 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:15:50,696 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 236 proven. 0 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2019-09-08 16:15:59,378 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 16:15:59,379 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2019-09-08 16:15:59,380 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 16:15:59,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 16:15:59,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-08 16:15:59,381 INFO L87 Difference]: Start difference. First operand 601513 states and 790083 transitions. Second operand 5 states. [2019-09-08 16:17:09,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:17:09,024 INFO L93 Difference]: Finished difference Result 1879501 states and 2468406 transitions. [2019-09-08 16:17:09,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 16:17:09,024 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 329 [2019-09-08 16:17:09,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:17:16,849 INFO L225 Difference]: With dead ends: 1879501 [2019-09-08 16:17:16,849 INFO L226 Difference]: Without dead ends: 1879422 [2019-09-08 16:17:17,293 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-08 16:17:18,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1879422 states.