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--net--can--usb--esd_usb2.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 16:02:24,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 16:02:24,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 16:02:24,500 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 16:02:24,500 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 16:02:24,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 16:02:24,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 16:02:24,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 16:02:24,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 16:02:24,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 16:02:24,508 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 16:02:24,509 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 16:02:24,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 16:02:24,510 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 16:02:24,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 16:02:24,512 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 16:02:24,513 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 16:02:24,514 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 16:02:24,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 16:02:24,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 16:02:24,520 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 16:02:24,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 16:02:24,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 16:02:24,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 16:02:24,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-08 16:02:24,526 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-08 16:02:24,526 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-08 16:02:24,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-08 16:02:24,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-08 16:02:24,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-08 16:02:24,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 16:02:24,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 16:02:24,530 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 16:02:24,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 16:02:24,532 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 16:02:24,532 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 16:02:24,533 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 16:02:24,533 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 16:02:24,533 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 16:02:24,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 16:02:24,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 16:02:24,536 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 16:02:24,550 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 16:02:24,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 16:02:24,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 16:02:24,552 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 16:02:24,552 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 16:02:24,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 16:02:24,552 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 16:02:24,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 16:02:24,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 16:02:24,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 16:02:24,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 16:02:24,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 16:02:24,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 16:02:24,554 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 16:02:24,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 16:02:24,554 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 16:02:24,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 16:02:24,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 16:02:24,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 16:02:24,555 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 16:02:24,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 16:02:24,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 16:02:24,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 16:02:24,556 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 16:02:24,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 16:02:24,556 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 16:02:24,556 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 16:02:24,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 16:02:24,557 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 16:02:24,585 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 16:02:24,598 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 16:02:24,602 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 16:02:24,603 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 16:02:24,603 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 16:02:24,604 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--esd_usb2.ko-entry_point.cil.out.i [2019-09-08 16:02:24,665 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9064341eb/4122581eec4b471eb5242bc3acf56cba/FLAG7a077cc73 [2019-09-08 16:02:25,526 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 16:02:25,527 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--esd_usb2.ko-entry_point.cil.out.i [2019-09-08 16:02:25,562 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9064341eb/4122581eec4b471eb5242bc3acf56cba/FLAG7a077cc73 [2019-09-08 16:02:25,998 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9064341eb/4122581eec4b471eb5242bc3acf56cba [2019-09-08 16:02:26,014 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 16:02:26,015 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 16:02:26,017 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 16:02:26,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 16:02:26,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 16:02:26,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 04:02:26" (1/1) ... [2019-09-08 16:02:26,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ffda04e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:02:26, skipping insertion in model container [2019-09-08 16:02:26,025 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 04:02:26" (1/1) ... [2019-09-08 16:02:26,033 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 16:02:26,188 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 16:02:28,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 16:02:28,185 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 16:02:28,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 16:02:28,808 INFO L192 MainTranslator]: Completed translation [2019-09-08 16:02:28,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:02:28 WrapperNode [2019-09-08 16:02:28,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 16:02:28,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 16:02:28,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 16:02:28,810 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 16:02:28,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:02:28" (1/1) ... [2019-09-08 16:02:28,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:02:28" (1/1) ... [2019-09-08 16:02:28,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:02:28" (1/1) ... [2019-09-08 16:02:28,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:02:28" (1/1) ... [2019-09-08 16:02:29,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:02:28" (1/1) ... [2019-09-08 16:02:29,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:02:28" (1/1) ... [2019-09-08 16:02:29,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:02:28" (1/1) ... [2019-09-08 16:02:29,171 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 16:02:29,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 16:02:29,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 16:02:29,172 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 16:02:29,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:02:28" (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 16:02:29,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 16:02:29,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 16:02:29,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-09-08 16:02:29,268 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-09-08 16:02:29,270 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-09-08 16:02:29,270 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-09-08 16:02:29,271 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-09-08 16:02:29,271 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-09-08 16:02:29,272 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-09-08 16:02:29,272 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-09-08 16:02:29,272 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2019-09-08 16:02:29,273 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-09-08 16:02:29,274 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-09-08 16:02:29,275 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2019-09-08 16:02:29,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-09-08 16:02:29,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-09-08 16:02:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-09-08 16:02:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-09-08 16:02:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-08 16:02:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-09-08 16:02:29,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-09-08 16:02:29,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-08 16:02:29,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-09-08 16:02:29,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-08 16:02:29,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-08 16:02:29,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-08 16:02:29,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-09-08 16:02:29,283 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2019-09-08 16:02:29,283 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-09-08 16:02:29,283 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2019-09-08 16:02:29,283 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2019-09-08 16:02:29,284 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2019-09-08 16:02:29,284 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2019-09-08 16:02:29,284 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2019-09-08 16:02:29,285 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2019-09-08 16:02:29,285 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2019-09-08 16:02:29,285 INFO L138 BoogieDeclarations]: Found implementation of procedure can_dropped_invalid_skb [2019-09-08 16:02:29,285 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_rx_event [2019-09-08 16:02:29,285 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_rx_can_msg [2019-09-08 16:02:29,286 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_tx_done_msg [2019-09-08 16:02:29,286 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_read_bulk_callback [2019-09-08 16:02:29,286 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_write_bulk_callback [2019-09-08 16:02:29,286 INFO L138 BoogieDeclarations]: Found implementation of procedure show_firmware [2019-09-08 16:02:29,286 INFO L138 BoogieDeclarations]: Found implementation of procedure show_hardware [2019-09-08 16:02:29,287 INFO L138 BoogieDeclarations]: Found implementation of procedure show_nets [2019-09-08 16:02:29,287 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_send_msg [2019-09-08 16:02:29,288 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_wait_msg [2019-09-08 16:02:29,288 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_setup_rx_urbs [2019-09-08 16:02:29,288 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_start [2019-09-08 16:02:29,288 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2019-09-08 16:02:29,288 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_open [2019-09-08 16:02:29,289 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_start_xmit [2019-09-08 16:02:29,289 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_close [2019-09-08 16:02:29,289 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_set_bittiming [2019-09-08 16:02:29,289 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_get_berr_counter [2019-09-08 16:02:29,289 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_set_mode [2019-09-08 16:02:29,289 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_probe_one_net [2019-09-08 16:02:29,290 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_probe [2019-09-08 16:02:29,290 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_disconnect [2019-09-08 16:02:29,290 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_driver_init [2019-09-08 16:02:29,290 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_driver_exit [2019-09-08 16:02:29,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2019-09-08 16:02:29,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_2 [2019-09-08 16:02:29,290 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 16:02:29,291 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-09-08 16:02:29,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_2 [2019-09-08 16:02:29,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2019-09-08 16:02:29,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_4 [2019-09-08 16:02:29,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_7 [2019-09-08 16:02:29,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_9 [2019-09-08 16:02:29,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_10 [2019-09-08 16:02:29,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_11 [2019-09-08 16:02:29,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_13 [2019-09-08 16:02:29,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_14 [2019-09-08 16:02:29,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_15 [2019-09-08 16:02:29,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_17 [2019-09-08 16:02:29,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_20 [2019-09-08 16:02:29,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_21 [2019-09-08 16:02:29,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2019-09-08 16:02:29,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2019-09-08 16:02:29,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2019-09-08 16:02:29,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2019-09-08 16:02:29,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2019-09-08 16:02:29,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2019-09-08 16:02:29,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2019-09-08 16:02:29,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2019-09-08 16:02:29,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2019-09-08 16:02:29,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2019-09-08 16:02:29,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2019-09-08 16:02:29,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2019-09-08 16:02:29,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2019-09-08 16:02:29,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2019-09-08 16:02:29,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2019-09-08 16:02:29,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2019-09-08 16:02:29,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-08 16:02:29,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-09-08 16:02:29,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2019-09-08 16:02:29,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-09-08 16:02:29,299 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-09-08 16:02:29,300 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_can_err_skb [2019-09-08 16:02:29,300 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_can_skb [2019-09-08 16:02:29,300 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_candev [2019-09-08 16:02:29,300 INFO L138 BoogieDeclarations]: Found implementation of procedure can_bus_off [2019-09-08 16:02:29,300 INFO L138 BoogieDeclarations]: Found implementation of procedure can_free_echo_skb [2019-09-08 16:02:29,300 INFO L138 BoogieDeclarations]: Found implementation of procedure can_get_echo_skb [2019-09-08 16:02:29,300 INFO L138 BoogieDeclarations]: Found implementation of procedure can_put_echo_skb [2019-09-08 16:02:29,301 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2019-09-08 16:02:29,301 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2019-09-08 16:02:29,301 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-09-08 16:02:29,301 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2019-09-08 16:02:29,301 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2019-09-08 16:02:29,301 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2019-09-08 16:02:29,301 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2019-09-08 16:02:29,302 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2019-09-08 16:02:29,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-08 16:02:29,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_2 [2019-09-08 16:02:29,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_2 [2019-09-08 16:02:29,302 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2019-09-08 16:02:29,303 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2019-09-08 16:02:29,303 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2019-09-08 16:02:29,303 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2019-09-08 16:02:29,303 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2019-09-08 16:02:29,304 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2019-09-08 16:02:29,304 INFO L138 BoogieDeclarations]: Found implementation of procedure open_candev [2019-09-08 16:02:29,304 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-09-08 16:02:29,305 INFO L138 BoogieDeclarations]: Found implementation of procedure register_candev [2019-09-08 16:02:29,305 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2019-09-08 16:02:29,305 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-09-08 16:02:29,305 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2019-09-08 16:02:29,305 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2019-09-08 16:02:29,305 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-09-08 16:02:29,306 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-09-08 16:02:29,306 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2019-09-08 16:02:29,306 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-09-08 16:02:29,306 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2019-09-08 16:02:29,306 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-09-08 16:02:29,306 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-08 16:02:29,307 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-08 16:02:29,307 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-09-08 16:02:29,308 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 16:02:29,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-08 16:02:29,311 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-09-08 16:02:29,312 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-09-08 16:02:29,312 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-09-08 16:02:29,318 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-09-08 16:02:29,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 16:02:29,318 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-09-08 16:02:29,319 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-09-08 16:02:29,319 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-09-08 16:02:29,319 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-09-08 16:02:29,319 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-09-08 16:02:29,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 16:02:29,319 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-09-08 16:02:29,319 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2019-09-08 16:02:29,319 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-09-08 16:02:29,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-08 16:02:29,320 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-09-08 16:02:29,320 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-09-08 16:02:29,320 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-09-08 16:02:29,321 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2019-09-08 16:02:29,321 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2019-09-08 16:02:29,322 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-09-08 16:02:29,322 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2019-09-08 16:02:29,322 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-09-08 16:02:29,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_4 [2019-09-08 16:02:29,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_17 [2019-09-08 16:02:29,322 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-09-08 16:02:29,322 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-09-08 16:02:29,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_20 [2019-09-08 16:02:29,323 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-09-08 16:02:29,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_21 [2019-09-08 16:02:29,323 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2019-09-08 16:02:29,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 16:02:29,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 16:02:29,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_2 [2019-09-08 16:02:29,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_7 [2019-09-08 16:02:29,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_11 [2019-09-08 16:02:29,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_10 [2019-09-08 16:02:29,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_14 [2019-09-08 16:02:29,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_15 [2019-09-08 16:02:29,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2019-09-08 16:02:29,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_9 [2019-09-08 16:02:29,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_13 [2019-09-08 16:02:29,325 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2019-09-08 16:02:29,325 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2019-09-08 16:02:29,325 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2019-09-08 16:02:29,325 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-09-08 16:02:29,325 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-09-08 16:02:29,325 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2019-09-08 16:02:29,325 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-09-08 16:02:29,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2019-09-08 16:02:29,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2019-09-08 16:02:29,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2019-09-08 16:02:29,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2019-09-08 16:02:29,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2019-09-08 16:02:29,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2019-09-08 16:02:29,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2019-09-08 16:02:29,327 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-08 16:02:29,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-08 16:02:29,327 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-09-08 16:02:29,327 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-09-08 16:02:29,327 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-09-08 16:02:29,327 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-08 16:02:29,328 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-08 16:02:29,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-08 16:02:29,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-08 16:02:29,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-08 16:02:29,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-08 16:02:29,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-08 16:02:29,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-09-08 16:02:29,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-09-08 16:02:29,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-09-08 16:02:29,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-08 16:02:29,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-09-08 16:02:29,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-08 16:02:29,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-08 16:02:29,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-09-08 16:02:29,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2019-09-08 16:02:29,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_2 [2019-09-08 16:02:29,330 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2019-09-08 16:02:29,330 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2019-09-08 16:02:29,330 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2019-09-08 16:02:29,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-08 16:02:29,330 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-09-08 16:02:29,330 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2019-09-08 16:02:29,330 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2019-09-08 16:02:29,330 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2019-09-08 16:02:29,331 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2019-09-08 16:02:29,331 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2019-09-08 16:02:29,331 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2019-09-08 16:02:29,331 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2019-09-08 16:02:29,331 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2019-09-08 16:02:29,331 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2019-09-08 16:02:29,331 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2019-09-08 16:02:29,331 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2019-09-08 16:02:29,332 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2019-09-08 16:02:29,332 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2019-09-08 16:02:29,332 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2019-09-08 16:02:29,332 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2019-09-08 16:02:29,332 INFO L130 BoogieDeclarations]: Found specification of procedure can_dropped_invalid_skb [2019-09-08 16:02:29,332 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_candev [2019-09-08 16:02:29,332 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2019-09-08 16:02:29,333 INFO L130 BoogieDeclarations]: Found specification of procedure open_candev [2019-09-08 16:02:29,333 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2019-09-08 16:02:29,333 INFO L130 BoogieDeclarations]: Found specification of procedure register_candev [2019-09-08 16:02:29,333 INFO L130 BoogieDeclarations]: Found specification of procedure can_bus_off [2019-09-08 16:02:29,333 INFO L130 BoogieDeclarations]: Found specification of procedure can_put_echo_skb [2019-09-08 16:02:29,333 INFO L130 BoogieDeclarations]: Found specification of procedure can_get_echo_skb [2019-09-08 16:02:29,333 INFO L130 BoogieDeclarations]: Found specification of procedure can_free_echo_skb [2019-09-08 16:02:29,333 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_can_skb [2019-09-08 16:02:29,333 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_can_err_skb [2019-09-08 16:02:29,334 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_rx_event [2019-09-08 16:02:29,334 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_rx_can_msg [2019-09-08 16:02:29,334 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_tx_done_msg [2019-09-08 16:02:29,334 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_read_bulk_callback [2019-09-08 16:02:29,334 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_write_bulk_callback [2019-09-08 16:02:29,334 INFO L130 BoogieDeclarations]: Found specification of procedure show_firmware [2019-09-08 16:02:29,334 INFO L130 BoogieDeclarations]: Found specification of procedure show_hardware [2019-09-08 16:02:29,334 INFO L130 BoogieDeclarations]: Found specification of procedure show_nets [2019-09-08 16:02:29,335 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_send_msg [2019-09-08 16:02:29,335 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_wait_msg [2019-09-08 16:02:29,335 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_setup_rx_urbs [2019-09-08 16:02:29,335 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_start [2019-09-08 16:02:29,335 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2019-09-08 16:02:29,335 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_open [2019-09-08 16:02:29,335 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_start_xmit [2019-09-08 16:02:29,336 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_close [2019-09-08 16:02:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_set_bittiming [2019-09-08 16:02:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_get_berr_counter [2019-09-08 16:02:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_set_mode [2019-09-08 16:02:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_probe_one_net [2019-09-08 16:02:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_probe [2019-09-08 16:02:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_disconnect [2019-09-08 16:02:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_driver_init [2019-09-08 16:02:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_driver_exit [2019-09-08 16:02:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_2 [2019-09-08 16:02:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_2 [2019-09-08 16:02:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-08 16:02:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-08 16:02:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 16:02:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2019-09-08 16:02:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2019-09-08 16:02:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2019-09-08 16:02:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-09-08 16:02:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2019-09-08 16:02:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2019-09-08 16:02:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2019-09-08 16:02:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2019-09-08 16:02:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2019-09-08 16:02:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2019-09-08 16:02:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-08 16:02:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-08 16:02:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-08 16:02:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 16:02:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-08 16:02:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-08 16:02:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 16:02:40,198 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-08 16:02:41,119 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2019-09-08 16:09:36,491 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 16:09:36,492 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-08 16:09:36,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 04:09:36 BoogieIcfgContainer [2019-09-08 16:09:36,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 16:09:36,495 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 16:09:36,495 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 16:09:36,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 16:09:36,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 04:02:26" (1/3) ... [2019-09-08 16:09:36,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c525fb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 04:09:36, skipping insertion in model container [2019-09-08 16:09:36,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:02:28" (2/3) ... [2019-09-08 16:09:36,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c525fb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 04:09:36, skipping insertion in model container [2019-09-08 16:09:36,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 04:09:36" (3/3) ... [2019-09-08 16:09:36,501 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--esd_usb2.ko-entry_point.cil.out.i [2019-09-08 16:09:36,511 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 16:09:36,521 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 16:09:36,538 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 16:09:36,574 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 16:09:36,575 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 16:09:36,575 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 16:09:36,575 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 16:09:36,575 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 16:09:36,575 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 16:09:36,576 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 16:09:36,576 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 16:09:36,576 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 16:09:36,614 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states. [2019-09-08 16:09:36,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-09-08 16:09:36,629 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:09:36,630 INFO L399 BasicCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:09:36,633 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:09:36,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:09:36,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1737533775, now seen corresponding path program 1 times [2019-09-08 16:09:36,641 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:09:36,641 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:09:36,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:36,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:09:36,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:36,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:09:37,300 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2019-09-08 16:09:37,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:09:37,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:09:37,315 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:09:37,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:09:37,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:09:37,339 INFO L87 Difference]: Start difference. First operand 990 states. Second operand 3 states. [2019-09-08 16:09:37,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:09:37,805 INFO L93 Difference]: Finished difference Result 2695 states and 3435 transitions. [2019-09-08 16:09:37,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:09:37,807 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 100 [2019-09-08 16:09:37,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:09:37,852 INFO L225 Difference]: With dead ends: 2695 [2019-09-08 16:09:37,852 INFO L226 Difference]: Without dead ends: 1756 [2019-09-08 16:09:37,865 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 16:09:37,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1756 states. [2019-09-08 16:09:38,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1756 to 1756. [2019-09-08 16:09:38,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1756 states. [2019-09-08 16:09:38,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1756 states to 1756 states and 2222 transitions. [2019-09-08 16:09:38,086 INFO L78 Accepts]: Start accepts. Automaton has 1756 states and 2222 transitions. Word has length 100 [2019-09-08 16:09:38,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:09:38,087 INFO L475 AbstractCegarLoop]: Abstraction has 1756 states and 2222 transitions. [2019-09-08 16:09:38,087 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:09:38,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1756 states and 2222 transitions. [2019-09-08 16:09:38,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-09-08 16:09:38,101 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:09:38,101 INFO L399 BasicCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:09:38,101 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:09:38,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:09:38,102 INFO L82 PathProgramCache]: Analyzing trace with hash 990870192, now seen corresponding path program 1 times [2019-09-08 16:09:38,102 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:09:38,102 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:09:38,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:38,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:09:38,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:38,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:09:38,419 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2019-09-08 16:09:38,419 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:09:38,419 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:09:38,421 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:09:38,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:09:38,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:09:38,422 INFO L87 Difference]: Start difference. First operand 1756 states and 2222 transitions. Second operand 3 states. [2019-09-08 16:09:38,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:09:38,599 INFO L93 Difference]: Finished difference Result 5203 states and 6641 transitions. [2019-09-08 16:09:38,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:09:38,600 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2019-09-08 16:09:38,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:09:38,624 INFO L225 Difference]: With dead ends: 5203 [2019-09-08 16:09:38,625 INFO L226 Difference]: Without dead ends: 3479 [2019-09-08 16:09:38,633 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 16:09:38,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states. [2019-09-08 16:09:38,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3479 to 3469. [2019-09-08 16:09:38,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3469 states. [2019-09-08 16:09:38,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3469 states to 3469 states and 4421 transitions. [2019-09-08 16:09:38,808 INFO L78 Accepts]: Start accepts. Automaton has 3469 states and 4421 transitions. Word has length 116 [2019-09-08 16:09:38,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:09:38,810 INFO L475 AbstractCegarLoop]: Abstraction has 3469 states and 4421 transitions. [2019-09-08 16:09:38,810 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:09:38,810 INFO L276 IsEmpty]: Start isEmpty. Operand 3469 states and 4421 transitions. [2019-09-08 16:09:38,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-09-08 16:09:38,814 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:09:38,815 INFO L399 BasicCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:09:38,815 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:09:38,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:09:38,816 INFO L82 PathProgramCache]: Analyzing trace with hash 651721797, now seen corresponding path program 1 times [2019-09-08 16:09:38,816 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:09:38,816 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:09:38,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:38,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:09:38,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:09:39,130 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2019-09-08 16:09:39,130 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:09:39,130 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:09:39,131 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:09:39,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:09:39,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:09:39,132 INFO L87 Difference]: Start difference. First operand 3469 states and 4421 transitions. Second operand 3 states. [2019-09-08 16:09:39,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:09:39,802 INFO L93 Difference]: Finished difference Result 3471 states and 4422 transitions. [2019-09-08 16:09:39,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:09:39,806 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2019-09-08 16:09:39,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:09:39,842 INFO L225 Difference]: With dead ends: 3471 [2019-09-08 16:09:39,842 INFO L226 Difference]: Without dead ends: 3468 [2019-09-08 16:09:39,845 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 16:09:39,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3468 states. [2019-09-08 16:09:40,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3468 to 3468. [2019-09-08 16:09:40,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3468 states. [2019-09-08 16:09:40,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3468 states to 3468 states and 4419 transitions. [2019-09-08 16:09:40,023 INFO L78 Accepts]: Start accepts. Automaton has 3468 states and 4419 transitions. Word has length 117 [2019-09-08 16:09:40,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:09:40,024 INFO L475 AbstractCegarLoop]: Abstraction has 3468 states and 4419 transitions. [2019-09-08 16:09:40,024 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:09:40,024 INFO L276 IsEmpty]: Start isEmpty. Operand 3468 states and 4419 transitions. [2019-09-08 16:09:40,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-09-08 16:09:40,027 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:09:40,027 INFO L399 BasicCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:09:40,027 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:09:40,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:09:40,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1271938989, now seen corresponding path program 1 times [2019-09-08 16:09:40,028 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:09:40,028 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:09:40,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:40,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:09:40,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:40,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:09:40,271 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2019-09-08 16:09:40,271 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:09:40,271 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:09:40,272 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:09:40,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:09:40,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:09:40,273 INFO L87 Difference]: Start difference. First operand 3468 states and 4419 transitions. Second operand 3 states. [2019-09-08 16:09:40,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:09:40,385 INFO L93 Difference]: Finished difference Result 3470 states and 4420 transitions. [2019-09-08 16:09:40,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:09:40,385 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2019-09-08 16:09:40,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:09:40,406 INFO L225 Difference]: With dead ends: 3470 [2019-09-08 16:09:40,406 INFO L226 Difference]: Without dead ends: 3467 [2019-09-08 16:09:40,410 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 16:09:40,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3467 states. [2019-09-08 16:09:40,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3467 to 3467. [2019-09-08 16:09:40,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3467 states. [2019-09-08 16:09:40,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3467 states to 3467 states and 4417 transitions. [2019-09-08 16:09:40,596 INFO L78 Accepts]: Start accepts. Automaton has 3467 states and 4417 transitions. Word has length 118 [2019-09-08 16:09:40,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:09:40,600 INFO L475 AbstractCegarLoop]: Abstraction has 3467 states and 4417 transitions. [2019-09-08 16:09:40,600 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:09:40,600 INFO L276 IsEmpty]: Start isEmpty. Operand 3467 states and 4417 transitions. [2019-09-08 16:09:40,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-09-08 16:09:40,606 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:09:40,606 INFO L399 BasicCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:09:40,607 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:09:40,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:09:40,607 INFO L82 PathProgramCache]: Analyzing trace with hash -775876344, now seen corresponding path program 1 times [2019-09-08 16:09:40,607 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:09:40,608 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:09:40,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:40,611 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:09:40,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:40,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:09:40,815 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2019-09-08 16:09:40,816 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:09:40,816 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:09:40,817 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:09:40,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:09:40,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:09:40,817 INFO L87 Difference]: Start difference. First operand 3467 states and 4417 transitions. Second operand 3 states. [2019-09-08 16:09:40,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:09:40,918 INFO L93 Difference]: Finished difference Result 3469 states and 4418 transitions. [2019-09-08 16:09:40,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:09:40,919 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2019-09-08 16:09:40,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:09:40,939 INFO L225 Difference]: With dead ends: 3469 [2019-09-08 16:09:40,940 INFO L226 Difference]: Without dead ends: 3466 [2019-09-08 16:09:40,942 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 16:09:40,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3466 states. [2019-09-08 16:09:41,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3466 to 3466. [2019-09-08 16:09:41,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3466 states. [2019-09-08 16:09:41,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3466 states to 3466 states and 4415 transitions. [2019-09-08 16:09:41,111 INFO L78 Accepts]: Start accepts. Automaton has 3466 states and 4415 transitions. Word has length 119 [2019-09-08 16:09:41,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:09:41,112 INFO L475 AbstractCegarLoop]: Abstraction has 3466 states and 4415 transitions. [2019-09-08 16:09:41,112 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:09:41,112 INFO L276 IsEmpty]: Start isEmpty. Operand 3466 states and 4415 transitions. [2019-09-08 16:09:41,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-09-08 16:09:41,115 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:09:41,115 INFO L399 BasicCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:09:41,115 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:09:41,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:09:41,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1717168630, now seen corresponding path program 1 times [2019-09-08 16:09:41,116 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:09:41,116 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:09:41,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:41,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:09:41,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:41,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:09:41,322 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2019-09-08 16:09:41,323 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:09:41,326 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:09:41,327 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:09:41,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:09:41,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:09:41,328 INFO L87 Difference]: Start difference. First operand 3466 states and 4415 transitions. Second operand 3 states. [2019-09-08 16:09:41,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:09:41,448 INFO L93 Difference]: Finished difference Result 3468 states and 4416 transitions. [2019-09-08 16:09:41,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:09:41,449 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2019-09-08 16:09:41,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:09:41,469 INFO L225 Difference]: With dead ends: 3468 [2019-09-08 16:09:41,469 INFO L226 Difference]: Without dead ends: 3446 [2019-09-08 16:09:41,472 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 16:09:41,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3446 states. [2019-09-08 16:09:41,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3446 to 3446. [2019-09-08 16:09:41,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3446 states. [2019-09-08 16:09:41,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3446 states to 3446 states and 4391 transitions. [2019-09-08 16:09:41,646 INFO L78 Accepts]: Start accepts. Automaton has 3446 states and 4391 transitions. Word has length 120 [2019-09-08 16:09:41,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:09:41,647 INFO L475 AbstractCegarLoop]: Abstraction has 3446 states and 4391 transitions. [2019-09-08 16:09:41,647 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:09:41,647 INFO L276 IsEmpty]: Start isEmpty. Operand 3446 states and 4391 transitions. [2019-09-08 16:09:41,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-09-08 16:09:41,656 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:09:41,656 INFO L399 BasicCegarLoop]: trace histogram [12, 12, 12, 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] [2019-09-08 16:09:41,657 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:09:41,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:09:41,657 INFO L82 PathProgramCache]: Analyzing trace with hash 406017658, now seen corresponding path program 1 times [2019-09-08 16:09:41,658 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:09:41,658 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:09:41,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:41,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:09:41,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:41,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:09:41,860 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2019-09-08 16:09:41,860 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:09:41,860 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:09:41,861 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:09:41,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:09:41,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:09:41,861 INFO L87 Difference]: Start difference. First operand 3446 states and 4391 transitions. Second operand 3 states. [2019-09-08 16:09:42,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:09:42,109 INFO L93 Difference]: Finished difference Result 8085 states and 10217 transitions. [2019-09-08 16:09:42,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:09:42,110 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2019-09-08 16:09:42,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:09:42,135 INFO L225 Difference]: With dead ends: 8085 [2019-09-08 16:09:42,135 INFO L226 Difference]: Without dead ends: 4671 [2019-09-08 16:09:42,148 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 16:09:42,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4671 states. [2019-09-08 16:09:42,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4671 to 4653. [2019-09-08 16:09:42,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4653 states. [2019-09-08 16:09:42,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4653 states to 4653 states and 5848 transitions. [2019-09-08 16:09:42,368 INFO L78 Accepts]: Start accepts. Automaton has 4653 states and 5848 transitions. Word has length 179 [2019-09-08 16:09:42,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:09:42,368 INFO L475 AbstractCegarLoop]: Abstraction has 4653 states and 5848 transitions. [2019-09-08 16:09:42,368 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:09:42,368 INFO L276 IsEmpty]: Start isEmpty. Operand 4653 states and 5848 transitions. [2019-09-08 16:09:42,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-09-08 16:09:42,378 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:09:42,378 INFO L399 BasicCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 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] [2019-09-08 16:09:42,378 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:09:42,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:09:42,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1342871697, now seen corresponding path program 1 times [2019-09-08 16:09:42,379 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:09:42,379 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:09:42,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:42,383 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:09:42,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:42,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:09:42,573 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2019-09-08 16:09:42,573 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:09:42,573 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:09:42,574 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:09:42,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:09:42,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:09:42,575 INFO L87 Difference]: Start difference. First operand 4653 states and 5848 transitions. Second operand 3 states. [2019-09-08 16:09:43,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:09:43,116 INFO L93 Difference]: Finished difference Result 10529 states and 13201 transitions. [2019-09-08 16:09:43,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:09:43,117 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2019-09-08 16:09:43,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:09:43,150 INFO L225 Difference]: With dead ends: 10529 [2019-09-08 16:09:43,151 INFO L226 Difference]: Without dead ends: 5917 [2019-09-08 16:09:43,168 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 16:09:43,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5917 states. [2019-09-08 16:09:43,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5917 to 5899. [2019-09-08 16:09:43,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5899 states. [2019-09-08 16:09:43,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5899 states to 5899 states and 7364 transitions. [2019-09-08 16:09:43,433 INFO L78 Accepts]: Start accepts. Automaton has 5899 states and 7364 transitions. Word has length 210 [2019-09-08 16:09:43,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:09:43,434 INFO L475 AbstractCegarLoop]: Abstraction has 5899 states and 7364 transitions. [2019-09-08 16:09:43,434 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:09:43,434 INFO L276 IsEmpty]: Start isEmpty. Operand 5899 states and 7364 transitions. [2019-09-08 16:09:43,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2019-09-08 16:09:43,444 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:09:43,445 INFO L399 BasicCegarLoop]: trace histogram [13, 13, 13, 4, 4, 4, 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] [2019-09-08 16:09:43,445 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:09:43,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:09:43,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1179397327, now seen corresponding path program 1 times [2019-09-08 16:09:43,446 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:09:43,446 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:09:43,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:43,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:09:43,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:43,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:09:43,765 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2019-09-08 16:09:43,766 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:09:43,766 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:09:43,767 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:09:43,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:09:43,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:09:43,767 INFO L87 Difference]: Start difference. First operand 5899 states and 7364 transitions. Second operand 3 states. [2019-09-08 16:09:44,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:09:44,176 INFO L93 Difference]: Finished difference Result 14113 states and 17571 transitions. [2019-09-08 16:09:44,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:09:44,176 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 228 [2019-09-08 16:09:44,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:09:44,217 INFO L225 Difference]: With dead ends: 14113 [2019-09-08 16:09:44,217 INFO L226 Difference]: Without dead ends: 8255 [2019-09-08 16:09:44,239 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:09:44,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8255 states. [2019-09-08 16:09:44,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8255 to 8237. [2019-09-08 16:09:44,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8237 states. [2019-09-08 16:09:44,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8237 states to 8237 states and 10234 transitions. [2019-09-08 16:09:44,655 INFO L78 Accepts]: Start accepts. Automaton has 8237 states and 10234 transitions. Word has length 228 [2019-09-08 16:09:44,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:09:44,656 INFO L475 AbstractCegarLoop]: Abstraction has 8237 states and 10234 transitions. [2019-09-08 16:09:44,656 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:09:44,656 INFO L276 IsEmpty]: Start isEmpty. Operand 8237 states and 10234 transitions. [2019-09-08 16:09:44,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2019-09-08 16:09:44,670 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:09:44,671 INFO L399 BasicCegarLoop]: trace histogram [13, 13, 13, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:09:44,671 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:09:44,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:09:44,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1202427652, now seen corresponding path program 1 times [2019-09-08 16:09:44,672 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:09:44,672 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:09:44,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:44,675 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:09:44,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:44,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:09:44,944 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 18 proven. 12 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2019-09-08 16:09:44,944 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:09:44,944 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 16:09:44,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:09:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:09:45,594 INFO L256 TraceCheckSpWp]: Trace formula consists of 2884 conjuncts, 3 conjunts are in the unsatisfiable core [2019-09-08 16:09:45,614 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:09:45,827 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe [2019-09-08 16:09:45,839 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 16:09:45,840 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2019-09-08 16:09:45,842 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 16:09:45,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 16:09:45,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-09-08 16:09:45,844 INFO L87 Difference]: Start difference. First operand 8237 states and 10234 transitions. Second operand 8 states. [2019-09-08 16:09:52,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:09:52,079 INFO L93 Difference]: Finished difference Result 32871 states and 40862 transitions. [2019-09-08 16:09:52,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-09-08 16:09:52,080 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 255 [2019-09-08 16:09:52,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:09:52,190 INFO L225 Difference]: With dead ends: 32871 [2019-09-08 16:09:52,191 INFO L226 Difference]: Without dead ends: 24675 [2019-09-08 16:09:52,223 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 258 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=474, Unknown=0, NotChecked=0, Total=600 [2019-09-08 16:09:52,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24675 states. [2019-09-08 16:09:53,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24675 to 24629. [2019-09-08 16:09:53,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24629 states. [2019-09-08 16:09:53,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24629 states to 24629 states and 30596 transitions. [2019-09-08 16:09:53,380 INFO L78 Accepts]: Start accepts. Automaton has 24629 states and 30596 transitions. Word has length 255 [2019-09-08 16:09:53,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:09:53,380 INFO L475 AbstractCegarLoop]: Abstraction has 24629 states and 30596 transitions. [2019-09-08 16:09:53,380 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 16:09:53,381 INFO L276 IsEmpty]: Start isEmpty. Operand 24629 states and 30596 transitions. [2019-09-08 16:09:53,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2019-09-08 16:09:53,423 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:09:53,424 INFO L399 BasicCegarLoop]: trace histogram [14, 14, 14, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-08 16:09:53,424 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:09:53,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:09:53,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1610040647, now seen corresponding path program 1 times [2019-09-08 16:09:53,424 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:09:53,425 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:09:53,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:53,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:09:53,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:53,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:09:53,955 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 24 proven. 23 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2019-09-08 16:09:53,956 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:09:53,956 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 16:09:53,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:09:54,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:09:54,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 3061 conjuncts, 2 conjunts are in the unsatisfiable core [2019-09-08 16:09:54,545 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:09:54,644 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2019-09-08 16:09:54,663 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 16:09:54,663 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2019-09-08 16:09:54,665 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 16:09:54,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 16:09:54,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2019-09-08 16:09:54,666 INFO L87 Difference]: Start difference. First operand 24629 states and 30596 transitions. Second operand 8 states. [2019-09-08 16:09:58,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:09:58,642 INFO L93 Difference]: Finished difference Result 38826 states and 48784 transitions. [2019-09-08 16:09:58,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 16:09:58,643 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 278 [2019-09-08 16:09:58,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:09:58,707 INFO L225 Difference]: With dead ends: 38826 [2019-09-08 16:09:58,707 INFO L226 Difference]: Without dead ends: 13241 [2019-09-08 16:09:58,783 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2019-09-08 16:09:58,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13241 states. [2019-09-08 16:09:59,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13241 to 12047. [2019-09-08 16:09:59,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12047 states. [2019-09-08 16:09:59,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12047 states to 12047 states and 14984 transitions. [2019-09-08 16:09:59,541 INFO L78 Accepts]: Start accepts. Automaton has 12047 states and 14984 transitions. Word has length 278 [2019-09-08 16:09:59,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:09:59,542 INFO L475 AbstractCegarLoop]: Abstraction has 12047 states and 14984 transitions. [2019-09-08 16:09:59,542 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 16:09:59,542 INFO L276 IsEmpty]: Start isEmpty. Operand 12047 states and 14984 transitions. [2019-09-08 16:09:59,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2019-09-08 16:09:59,572 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:09:59,573 INFO L399 BasicCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 3, 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] [2019-09-08 16:09:59,573 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:09:59,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:09:59,574 INFO L82 PathProgramCache]: Analyzing trace with hash -871130395, now seen corresponding path program 1 times [2019-09-08 16:09:59,574 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:09:59,574 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:09:59,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:59,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:09:59,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:09:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:09:59,904 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 55 proven. 2 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2019-09-08 16:09:59,904 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:09:59,904 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 16:09:59,934 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:10:00,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:10:00,504 INFO L256 TraceCheckSpWp]: Trace formula consists of 2962 conjuncts, 2 conjunts are in the unsatisfiable core [2019-09-08 16:10:00,515 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:10:00,591 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2019-09-08 16:10:00,608 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 16:10:00,608 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2019-09-08 16:10:00,609 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 16:10:00,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 16:10:00,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-08 16:10:00,610 INFO L87 Difference]: Start difference. First operand 12047 states and 14984 transitions. Second operand 5 states. [2019-09-08 16:10:02,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:10:02,354 INFO L93 Difference]: Finished difference Result 28275 states and 35724 transitions. [2019-09-08 16:10:02,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 16:10:02,355 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 280 [2019-09-08 16:10:02,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:10:02,411 INFO L225 Difference]: With dead ends: 28275 [2019-09-08 16:10:02,411 INFO L226 Difference]: Without dead ends: 16234 [2019-09-08 16:10:02,435 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-09-08 16:10:02,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16234 states. [2019-09-08 16:10:03,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16234 to 14699. [2019-09-08 16:10:03,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14699 states. [2019-09-08 16:10:03,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14699 states to 14699 states and 18207 transitions. [2019-09-08 16:10:03,105 INFO L78 Accepts]: Start accepts. Automaton has 14699 states and 18207 transitions. Word has length 280 [2019-09-08 16:10:03,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:10:03,107 INFO L475 AbstractCegarLoop]: Abstraction has 14699 states and 18207 transitions. [2019-09-08 16:10:03,107 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 16:10:03,107 INFO L276 IsEmpty]: Start isEmpty. Operand 14699 states and 18207 transitions. [2019-09-08 16:10:03,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2019-09-08 16:10:03,143 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:10:03,144 INFO L399 BasicCegarLoop]: trace histogram [13, 13, 13, 5, 5, 5, 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, 1, 1, 1] [2019-09-08 16:10:03,144 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:10:03,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:10:03,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1469059477, now seen corresponding path program 1 times [2019-09-08 16:10:03,145 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:10:03,145 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:10:03,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:03,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:10:03,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:03,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:10:03,422 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2019-09-08 16:10:03,422 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:10:03,422 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:10:03,424 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:10:03,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:10:03,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:10:03,425 INFO L87 Difference]: Start difference. First operand 14699 states and 18207 transitions. Second operand 3 states. [2019-09-08 16:10:03,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:10:03,961 INFO L93 Difference]: Finished difference Result 28371 states and 35217 transitions. [2019-09-08 16:10:03,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:10:03,962 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 296 [2019-09-08 16:10:03,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:10:04,033 INFO L225 Difference]: With dead ends: 28371 [2019-09-08 16:10:04,034 INFO L226 Difference]: Without dead ends: 14711 [2019-09-08 16:10:04,066 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 16:10:04,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14711 states. [2019-09-08 16:10:05,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14711 to 14705. [2019-09-08 16:10:05,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14705 states. [2019-09-08 16:10:05,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14705 states to 14705 states and 18213 transitions. [2019-09-08 16:10:05,520 INFO L78 Accepts]: Start accepts. Automaton has 14705 states and 18213 transitions. Word has length 296 [2019-09-08 16:10:05,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:10:05,520 INFO L475 AbstractCegarLoop]: Abstraction has 14705 states and 18213 transitions. [2019-09-08 16:10:05,521 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:10:05,521 INFO L276 IsEmpty]: Start isEmpty. Operand 14705 states and 18213 transitions. [2019-09-08 16:10:05,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2019-09-08 16:10:05,549 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:10:05,549 INFO L399 BasicCegarLoop]: trace histogram [13, 13, 13, 5, 5, 5, 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, 1, 1, 1, 1, 1] [2019-09-08 16:10:05,550 INFO L418 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:10:05,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:10:05,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1383390105, now seen corresponding path program 1 times [2019-09-08 16:10:05,550 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:10:05,550 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:10:05,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:05,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:10:05,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:05,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:10:05,874 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2019-09-08 16:10:05,877 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:10:05,877 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:10:05,878 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:10:05,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:10:05,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:10:05,879 INFO L87 Difference]: Start difference. First operand 14705 states and 18213 transitions. Second operand 3 states. [2019-09-08 16:10:06,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:10:06,347 INFO L93 Difference]: Finished difference Result 28407 states and 35271 transitions. [2019-09-08 16:10:06,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:10:06,348 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 298 [2019-09-08 16:10:06,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:10:06,400 INFO L225 Difference]: With dead ends: 28407 [2019-09-08 16:10:06,400 INFO L226 Difference]: Without dead ends: 14741 [2019-09-08 16:10:06,427 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 16:10:06,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14741 states. [2019-09-08 16:10:07,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14741 to 14717. [2019-09-08 16:10:07,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14717 states. [2019-09-08 16:10:07,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14717 states to 14717 states and 18225 transitions. [2019-09-08 16:10:07,067 INFO L78 Accepts]: Start accepts. Automaton has 14717 states and 18225 transitions. Word has length 298 [2019-09-08 16:10:07,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:10:07,068 INFO L475 AbstractCegarLoop]: Abstraction has 14717 states and 18225 transitions. [2019-09-08 16:10:07,068 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:10:07,069 INFO L276 IsEmpty]: Start isEmpty. Operand 14717 states and 18225 transitions. [2019-09-08 16:10:07,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2019-09-08 16:10:07,101 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:10:07,101 INFO L399 BasicCegarLoop]: trace histogram [13, 13, 13, 5, 5, 5, 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, 1, 1, 1, 1, 1] [2019-09-08 16:10:07,102 INFO L418 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:10:07,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:10:07,102 INFO L82 PathProgramCache]: Analyzing trace with hash -950002533, now seen corresponding path program 1 times [2019-09-08 16:10:07,102 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:10:07,102 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:10:07,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:07,106 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:10:07,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:07,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:10:07,575 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2019-09-08 16:10:07,575 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:10:07,575 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 16:10:07,576 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 16:10:07,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 16:10:07,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-08 16:10:07,577 INFO L87 Difference]: Start difference. First operand 14717 states and 18225 transitions. Second operand 9 states. [2019-09-08 16:10:08,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:10:08,290 INFO L93 Difference]: Finished difference Result 28713 states and 35628 transitions. [2019-09-08 16:10:08,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-08 16:10:08,291 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 298 [2019-09-08 16:10:08,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:10:08,339 INFO L225 Difference]: With dead ends: 28713 [2019-09-08 16:10:08,340 INFO L226 Difference]: Without dead ends: 15035 [2019-09-08 16:10:08,366 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-08 16:10:08,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15035 states. [2019-09-08 16:10:08,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15035 to 14819. [2019-09-08 16:10:08,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14819 states. [2019-09-08 16:10:08,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14819 states to 14819 states and 18363 transitions. [2019-09-08 16:10:08,964 INFO L78 Accepts]: Start accepts. Automaton has 14819 states and 18363 transitions. Word has length 298 [2019-09-08 16:10:08,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:10:08,965 INFO L475 AbstractCegarLoop]: Abstraction has 14819 states and 18363 transitions. [2019-09-08 16:10:08,965 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 16:10:08,965 INFO L276 IsEmpty]: Start isEmpty. Operand 14819 states and 18363 transitions. [2019-09-08 16:10:08,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2019-09-08 16:10:08,991 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:10:08,991 INFO L399 BasicCegarLoop]: trace histogram [13, 13, 13, 5, 5, 5, 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, 1, 1, 1, 1, 1] [2019-09-08 16:10:08,991 INFO L418 AbstractCegarLoop]: === Iteration 16 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:10:08,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:10:08,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1164831686, now seen corresponding path program 1 times [2019-09-08 16:10:08,992 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:10:08,992 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:10:08,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:08,995 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:10:08,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:09,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:10:09,348 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2019-09-08 16:10:09,349 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:10:09,349 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 16:10:09,350 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 16:10:09,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 16:10:09,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-08 16:10:09,351 INFO L87 Difference]: Start difference. First operand 14819 states and 18363 transitions. Second operand 6 states. [2019-09-08 16:10:09,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:10:09,875 INFO L93 Difference]: Finished difference Result 28701 states and 35700 transitions. [2019-09-08 16:10:09,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 16:10:09,876 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 298 [2019-09-08 16:10:09,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:10:09,925 INFO L225 Difference]: With dead ends: 28701 [2019-09-08 16:10:09,925 INFO L226 Difference]: Without dead ends: 14921 [2019-09-08 16:10:09,952 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 16:10:09,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14921 states. [2019-09-08 16:10:10,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14921 to 14873. [2019-09-08 16:10:10,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14873 states. [2019-09-08 16:10:10,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14873 states to 14873 states and 18438 transitions. [2019-09-08 16:10:10,827 INFO L78 Accepts]: Start accepts. Automaton has 14873 states and 18438 transitions. Word has length 298 [2019-09-08 16:10:10,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:10:10,828 INFO L475 AbstractCegarLoop]: Abstraction has 14873 states and 18438 transitions. [2019-09-08 16:10:10,828 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 16:10:10,828 INFO L276 IsEmpty]: Start isEmpty. Operand 14873 states and 18438 transitions. [2019-09-08 16:10:10,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2019-09-08 16:10:10,846 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:10:10,846 INFO L399 BasicCegarLoop]: trace histogram [13, 13, 13, 5, 5, 5, 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, 1, 1, 1, 1, 1] [2019-09-08 16:10:10,846 INFO L418 AbstractCegarLoop]: === Iteration 17 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:10:10,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:10:10,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1585957558, now seen corresponding path program 1 times [2019-09-08 16:10:10,847 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:10:10,847 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:10:10,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:10,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:10:10,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:10,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:10:11,181 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 38 proven. 1 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2019-09-08 16:10:11,182 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:10:11,182 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 16:10:11,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:10:11,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:10:11,836 INFO L256 TraceCheckSpWp]: Trace formula consists of 3404 conjuncts, 3 conjunts are in the unsatisfiable core [2019-09-08 16:10:11,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:10:11,897 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 38 proven. 1 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2019-09-08 16:10:11,905 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:10:11,906 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2019-09-08 16:10:11,906 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 16:10:11,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 16:10:11,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-08 16:10:11,907 INFO L87 Difference]: Start difference. First operand 14873 states and 18438 transitions. Second operand 5 states. [2019-09-08 16:10:12,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:10:12,313 INFO L93 Difference]: Finished difference Result 28725 states and 35685 transitions. [2019-09-08 16:10:12,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-08 16:10:12,314 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 298 [2019-09-08 16:10:12,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:10:12,363 INFO L225 Difference]: With dead ends: 28725 [2019-09-08 16:10:12,363 INFO L226 Difference]: Without dead ends: 14891 [2019-09-08 16:10:12,394 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-08 16:10:12,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14891 states. [2019-09-08 16:10:12,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14891 to 14885. [2019-09-08 16:10:12,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14885 states. [2019-09-08 16:10:13,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14885 states to 14885 states and 18450 transitions. [2019-09-08 16:10:13,010 INFO L78 Accepts]: Start accepts. Automaton has 14885 states and 18450 transitions. Word has length 298 [2019-09-08 16:10:13,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:10:13,011 INFO L475 AbstractCegarLoop]: Abstraction has 14885 states and 18450 transitions. [2019-09-08 16:10:13,011 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 16:10:13,011 INFO L276 IsEmpty]: Start isEmpty. Operand 14885 states and 18450 transitions. [2019-09-08 16:10:13,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2019-09-08 16:10:13,029 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:10:13,030 INFO L399 BasicCegarLoop]: trace histogram [13, 13, 13, 5, 5, 5, 3, 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] [2019-09-08 16:10:13,030 INFO L418 AbstractCegarLoop]: === Iteration 18 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:10:13,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:10:13,031 INFO L82 PathProgramCache]: Analyzing trace with hash 784513018, now seen corresponding path program 2 times [2019-09-08 16:10:13,031 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:10:13,031 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:10:13,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:13,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:10:13,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:13,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:10:13,366 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 38 proven. 4 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2019-09-08 16:10:13,366 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:10:13,366 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) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:10:13,391 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-09-08 16:10:14,131 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-08 16:10:14,132 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 16:10:14,146 INFO L256 TraceCheckSpWp]: Trace formula consists of 3410 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-08 16:10:14,155 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:10:14,423 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 38 proven. 4 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (6)] Exception during sending of exit command (exit): Broken pipe [2019-09-08 16:10:14,441 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:10:14,441 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-09-08 16:10:14,443 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 16:10:14,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 16:10:14,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-09-08 16:10:14,444 INFO L87 Difference]: Start difference. First operand 14885 states and 18450 transitions. Second operand 6 states. [2019-09-08 16:10:14,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:10:14,818 INFO L93 Difference]: Finished difference Result 28749 states and 35709 transitions. [2019-09-08 16:10:14,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 16:10:14,818 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 300 [2019-09-08 16:10:14,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:10:14,864 INFO L225 Difference]: With dead ends: 28749 [2019-09-08 16:10:14,865 INFO L226 Difference]: Without dead ends: 14903 [2019-09-08 16:10:14,891 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-09-08 16:10:14,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14903 states. [2019-09-08 16:10:15,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14903 to 14897. [2019-09-08 16:10:15,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14897 states. [2019-09-08 16:10:15,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14897 states to 14897 states and 18462 transitions. [2019-09-08 16:10:15,380 INFO L78 Accepts]: Start accepts. Automaton has 14897 states and 18462 transitions. Word has length 300 [2019-09-08 16:10:15,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:10:15,381 INFO L475 AbstractCegarLoop]: Abstraction has 14897 states and 18462 transitions. [2019-09-08 16:10:15,381 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 16:10:15,381 INFO L276 IsEmpty]: Start isEmpty. Operand 14897 states and 18462 transitions. [2019-09-08 16:10:15,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2019-09-08 16:10:15,394 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:10:15,394 INFO L399 BasicCegarLoop]: trace histogram [13, 13, 13, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:10:15,395 INFO L418 AbstractCegarLoop]: === Iteration 19 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:10:15,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:10:15,395 INFO L82 PathProgramCache]: Analyzing trace with hash -604543938, now seen corresponding path program 3 times [2019-09-08 16:10:15,395 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:10:15,395 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:10:15,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:15,398 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 16:10:15,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:15,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:10:15,722 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 38 proven. 9 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2019-09-08 16:10:15,722 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:10:15,722 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 16:10:15,747 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:10:25,875 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-09-08 16:10:25,875 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 16:10:25,902 INFO L256 TraceCheckSpWp]: Trace formula consists of 3027 conjuncts, 26 conjunts are in the unsatisfiable core [2019-09-08 16:10:25,911 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:10:26,106 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2019-09-08 16:10:26,183 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 16:10:26,184 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2019-09-08 16:10:26,184 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-08 16:10:26,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-08 16:10:26,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-09-08 16:10:26,185 INFO L87 Difference]: Start difference. First operand 14897 states and 18462 transitions. Second operand 12 states. [2019-09-08 16:10:32,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:10:32,716 INFO L93 Difference]: Finished difference Result 35002 states and 43513 transitions. [2019-09-08 16:10:32,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-09-08 16:10:32,717 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 302 [2019-09-08 16:10:32,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:10:32,773 INFO L225 Difference]: With dead ends: 35002 [2019-09-08 16:10:32,773 INFO L226 Difference]: Without dead ends: 19397 [2019-09-08 16:10:32,800 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2019-09-08 16:10:32,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19397 states. [2019-09-08 16:10:33,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19397 to 19361. [2019-09-08 16:10:33,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19361 states. [2019-09-08 16:10:33,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19361 states to 19361 states and 23985 transitions. [2019-09-08 16:10:33,408 INFO L78 Accepts]: Start accepts. Automaton has 19361 states and 23985 transitions. Word has length 302 [2019-09-08 16:10:33,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:10:33,408 INFO L475 AbstractCegarLoop]: Abstraction has 19361 states and 23985 transitions. [2019-09-08 16:10:33,408 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-08 16:10:33,408 INFO L276 IsEmpty]: Start isEmpty. Operand 19361 states and 23985 transitions. [2019-09-08 16:10:33,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2019-09-08 16:10:33,420 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:10:33,420 INFO L399 BasicCegarLoop]: trace histogram [13, 13, 13, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 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] [2019-09-08 16:10:33,420 INFO L418 AbstractCegarLoop]: === Iteration 20 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:10:33,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:10:33,421 INFO L82 PathProgramCache]: Analyzing trace with hash -27959211, now seen corresponding path program 1 times [2019-09-08 16:10:33,421 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:10:33,421 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:10:33,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:33,423 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 16:10:33,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:10:33,741 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 32 proven. 4 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2019-09-08 16:10:33,741 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:10:33,741 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:10:33,777 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:10:34,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:10:34,311 INFO L256 TraceCheckSpWp]: Trace formula consists of 3115 conjuncts, 2 conjunts are in the unsatisfiable core [2019-09-08 16:10:34,320 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:10:34,404 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2019-09-08 16:10:34,411 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 16:10:34,412 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2019-09-08 16:10:34,413 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 16:10:34,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 16:10:34,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-09-08 16:10:34,414 INFO L87 Difference]: Start difference. First operand 19361 states and 23985 transitions. Second operand 6 states. [2019-09-08 16:10:36,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:10:36,692 INFO L93 Difference]: Finished difference Result 53380 states and 66526 transitions. [2019-09-08 16:10:36,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 16:10:36,692 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 305 [2019-09-08 16:10:36,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:10:36,785 INFO L225 Difference]: With dead ends: 53380 [2019-09-08 16:10:36,785 INFO L226 Difference]: Without dead ends: 34060 [2019-09-08 16:10:36,818 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2019-09-08 16:10:36,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34060 states. [2019-09-08 16:10:37,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34060 to 32361. [2019-09-08 16:10:37,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32361 states. [2019-09-08 16:10:37,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32361 states to 32361 states and 40391 transitions. [2019-09-08 16:10:37,731 INFO L78 Accepts]: Start accepts. Automaton has 32361 states and 40391 transitions. Word has length 305 [2019-09-08 16:10:37,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:10:37,732 INFO L475 AbstractCegarLoop]: Abstraction has 32361 states and 40391 transitions. [2019-09-08 16:10:37,732 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 16:10:37,732 INFO L276 IsEmpty]: Start isEmpty. Operand 32361 states and 40391 transitions. [2019-09-08 16:10:37,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2019-09-08 16:10:37,750 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:10:37,750 INFO L399 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 7, 5, 5, 5, 5, 4, 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] [2019-09-08 16:10:37,751 INFO L418 AbstractCegarLoop]: === Iteration 21 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:10:37,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:10:37,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1532455580, now seen corresponding path program 1 times [2019-09-08 16:10:37,751 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:10:37,751 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:10:37,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:37,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:10:37,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:37,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:10:38,365 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2019-09-08 16:10:38,365 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:10:38,365 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-08 16:10:38,366 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 16:10:38,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 16:10:38,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-09-08 16:10:38,367 INFO L87 Difference]: Start difference. First operand 32361 states and 40391 transitions. Second operand 8 states. [2019-09-08 16:10:41,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:10:41,608 INFO L93 Difference]: Finished difference Result 87072 states and 108977 transitions. [2019-09-08 16:10:41,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-08 16:10:41,608 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 316 [2019-09-08 16:10:41,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:10:41,789 INFO L225 Difference]: With dead ends: 87072 [2019-09-08 16:10:41,789 INFO L226 Difference]: Without dead ends: 52927 [2019-09-08 16:10:41,849 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-09-08 16:10:41,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52927 states. [2019-09-08 16:10:43,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52927 to 52284. [2019-09-08 16:10:43,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52284 states. [2019-09-08 16:10:43,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52284 states to 52284 states and 65389 transitions. [2019-09-08 16:10:43,745 INFO L78 Accepts]: Start accepts. Automaton has 52284 states and 65389 transitions. Word has length 316 [2019-09-08 16:10:43,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:10:43,745 INFO L475 AbstractCegarLoop]: Abstraction has 52284 states and 65389 transitions. [2019-09-08 16:10:43,746 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 16:10:43,746 INFO L276 IsEmpty]: Start isEmpty. Operand 52284 states and 65389 transitions. [2019-09-08 16:10:43,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2019-09-08 16:10:43,765 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:10:43,766 INFO L399 BasicCegarLoop]: trace histogram [13, 13, 13, 5, 5, 5, 4, 4, 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, 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 16:10:43,766 INFO L418 AbstractCegarLoop]: === Iteration 22 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:10:43,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:10:43,767 INFO L82 PathProgramCache]: Analyzing trace with hash -718687701, now seen corresponding path program 1 times [2019-09-08 16:10:43,767 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:10:43,767 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:10:43,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:43,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:10:43,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:10:44,142 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 38 proven. 16 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2019-09-08 16:10:44,142 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:10:44,142 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:10:44,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:10:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:10:44,818 INFO L256 TraceCheckSpWp]: Trace formula consists of 3520 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-08 16:10:44,835 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:10:44,918 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 38 proven. 16 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2019-09-08 16:10:44,928 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:10:44,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2019-09-08 16:10:44,929 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 16:10:44,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 16:10:44,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-09-08 16:10:44,931 INFO L87 Difference]: Start difference. First operand 52284 states and 65389 transitions. Second operand 8 states. [2019-09-08 16:10:47,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:10:47,780 INFO L93 Difference]: Finished difference Result 104152 states and 130534 transitions. [2019-09-08 16:10:47,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 16:10:47,781 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 325 [2019-09-08 16:10:47,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:10:47,903 INFO L225 Difference]: With dead ends: 104152 [2019-09-08 16:10:47,904 INFO L226 Difference]: Without dead ends: 52389 [2019-09-08 16:10:47,968 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-09-08 16:10:48,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52389 states. [2019-09-08 16:10:49,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52389 to 52354. [2019-09-08 16:10:49,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52354 states. [2019-09-08 16:10:49,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52354 states to 52354 states and 65459 transitions. [2019-09-08 16:10:49,280 INFO L78 Accepts]: Start accepts. Automaton has 52354 states and 65459 transitions. Word has length 325 [2019-09-08 16:10:49,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:10:49,280 INFO L475 AbstractCegarLoop]: Abstraction has 52354 states and 65459 transitions. [2019-09-08 16:10:49,280 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 16:10:49,280 INFO L276 IsEmpty]: Start isEmpty. Operand 52354 states and 65459 transitions. [2019-09-08 16:10:49,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2019-09-08 16:10:49,297 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:10:49,297 INFO L399 BasicCegarLoop]: trace histogram [13, 13, 13, 5, 5, 5, 5, 5, 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, 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 16:10:49,297 INFO L418 AbstractCegarLoop]: === Iteration 23 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:10:49,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:10:49,298 INFO L82 PathProgramCache]: Analyzing trace with hash 738761319, now seen corresponding path program 2 times [2019-09-08 16:10:49,298 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:10:49,298 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:10:49,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:49,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:10:49,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:49,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:10:49,723 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 38 proven. 25 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2019-09-08 16:10:49,723 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:10:49,723 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:10:49,765 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-09-08 16:10:50,946 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-08 16:10:50,946 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 16:10:50,961 INFO L256 TraceCheckSpWp]: Trace formula consists of 3526 conjuncts, 7 conjunts are in the unsatisfiable core [2019-09-08 16:10:50,968 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:10:51,025 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 38 proven. 25 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2019-09-08 16:10:51,037 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:10:51,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2019-09-08 16:10:51,038 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 16:10:51,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 16:10:51,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-09-08 16:10:51,038 INFO L87 Difference]: Start difference. First operand 52354 states and 65459 transitions. Second operand 9 states. [2019-09-08 16:10:52,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:10:52,072 INFO L93 Difference]: Finished difference Result 104292 states and 130674 transitions. [2019-09-08 16:10:52,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-08 16:10:52,073 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 327 [2019-09-08 16:10:52,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:10:52,198 INFO L225 Difference]: With dead ends: 104292 [2019-09-08 16:10:52,198 INFO L226 Difference]: Without dead ends: 52459 [2019-09-08 16:10:52,275 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-09-08 16:10:52,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52459 states. [2019-09-08 16:10:55,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52459 to 52424. [2019-09-08 16:10:55,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52424 states. [2019-09-08 16:10:55,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52424 states to 52424 states and 65529 transitions. [2019-09-08 16:10:55,890 INFO L78 Accepts]: Start accepts. Automaton has 52424 states and 65529 transitions. Word has length 327 [2019-09-08 16:10:55,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:10:55,890 INFO L475 AbstractCegarLoop]: Abstraction has 52424 states and 65529 transitions. [2019-09-08 16:10:55,890 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 16:10:55,891 INFO L276 IsEmpty]: Start isEmpty. Operand 52424 states and 65529 transitions. [2019-09-08 16:10:55,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2019-09-08 16:10:55,907 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:10:55,908 INFO L399 BasicCegarLoop]: trace histogram [13, 13, 13, 6, 6, 5, 5, 5, 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, 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 16:10:55,908 INFO L418 AbstractCegarLoop]: === Iteration 24 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:10:55,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:10:55,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1187931043, now seen corresponding path program 3 times [2019-09-08 16:10:55,908 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:10:55,908 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:10:55,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:55,911 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 16:10:55,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:10:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:10:56,260 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 38 proven. 36 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2019-09-08 16:10:56,261 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:10:56,261 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:10:56,283 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-08 16:11:21,275 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-09-08 16:11:21,275 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 16:11:21,302 INFO L256 TraceCheckSpWp]: Trace formula consists of 3252 conjuncts, 58 conjunts are in the unsatisfiable core [2019-09-08 16:11:21,313 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:11:21,974 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2019-09-08 16:11:22,132 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 16:11:22,132 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [9] total 20 [2019-09-08 16:11:22,135 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-08 16:11:22,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-08 16:11:22,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2019-09-08 16:11:22,136 INFO L87 Difference]: Start difference. First operand 52424 states and 65529 transitions. Second operand 20 states.