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--usb--ipheth.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:21:05,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:21:05,242 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:21:05,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:21:05,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:21:05,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:21:05,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:21:05,262 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:21:05,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:21:05,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:21:05,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:21:05,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:21:05,267 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:21:05,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:21:05,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:21:05,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:21:05,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:21:05,272 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:21:05,274 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:21:05,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:21:05,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:21:05,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:21:05,280 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:21:05,281 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:21:05,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:21:05,284 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:21:05,284 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:21:05,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:21:05,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:21:05,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:21:05,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:21:05,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:21:05,289 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:21:05,290 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:21:05,292 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:21:05,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:21:05,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:21:05,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:21:05,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:21:05,296 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:21:05,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:21:05,298 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 [2019-09-20 13:21:05,323 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:21:05,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:21:05,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 13:21:05,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 13:21:05,326 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 13:21:05,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:21:05,326 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:21:05,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 13:21:05,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:21:05,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:21:05,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:21:05,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:21:05,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:21:05,329 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:21:05,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:21:05,329 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 13:21:05,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:21:05,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:21:05,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:21:05,330 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 13:21:05,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 13:21:05,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:21:05,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:21:05,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:21:05,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 13:21:05,332 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 13:21:05,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:21:05,332 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 13:21:05,333 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:21:05,391 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:21:05,410 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:21:05,414 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:21:05,416 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:21:05,416 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:21:05,417 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--ipheth.ko-entry_point.cil.out.i [2019-09-20 13:21:05,496 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb0b69c68/bfc04129afbb4a4eb6361c8b34991fa5/FLAGa4f2fd4ed [2019-09-20 13:21:06,370 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:21:06,372 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--ipheth.ko-entry_point.cil.out.i [2019-09-20 13:21:06,426 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb0b69c68/bfc04129afbb4a4eb6361c8b34991fa5/FLAGa4f2fd4ed [2019-09-20 13:21:06,846 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb0b69c68/bfc04129afbb4a4eb6361c8b34991fa5 [2019-09-20 13:21:06,860 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:21:06,861 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:21:06,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:21:06,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:21:06,866 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:21:06,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:21:06" (1/1) ... [2019-09-20 13:21:06,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17404014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:06, skipping insertion in model container [2019-09-20 13:21:06,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:21:06" (1/1) ... [2019-09-20 13:21:06,878 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:21:07,000 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:21:08,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:21:08,815 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:21:09,073 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:21:09,313 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:21:09,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:09 WrapperNode [2019-09-20 13:21:09,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:21:09,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:21:09,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:21:09,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:21:09,331 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:09" (1/1) ... [2019-09-20 13:21:09,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:09" (1/1) ... [2019-09-20 13:21:09,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:09" (1/1) ... [2019-09-20 13:21:09,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:09" (1/1) ... [2019-09-20 13:21:09,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:09" (1/1) ... [2019-09-20 13:21:09,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:09" (1/1) ... [2019-09-20 13:21:09,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:09" (1/1) ... [2019-09-20 13:21:09,555 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:21:09,556 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:21:09,556 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:21:09,560 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:21:09,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:21:09,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:21:09,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:21:09,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-09-20 13:21:09,644 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2019-09-20 13:21:09,644 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2019-09-20 13:21:09,644 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2019-09-20 13:21:09,644 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2019-09-20 13:21:09,644 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2019-09-20 13:21:09,645 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-09-20 13:21:09,645 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-09-20 13:21:09,645 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-09-20 13:21:09,645 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-09-20 13:21:09,646 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-09-20 13:21:09,646 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2019-09-20 13:21:09,646 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2019-09-20 13:21:09,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-09-20 13:21:09,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-09-20 13:21:09,647 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-09-20 13:21:09,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-20 13:21:09,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-09-20 13:21:09,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-09-20 13:21:09,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-20 13:21:09,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-09-20 13:21:09,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-20 13:21:09,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-20 13:21:09,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-20 13:21:09,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-09-20 13:21:09,652 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2019-09-20 13:21:09,653 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2019-09-20 13:21:09,653 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2019-09-20 13:21:09,653 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-09-20 13:21:09,653 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2019-09-20 13:21:09,653 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2019-09-20 13:21:09,653 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2019-09-20 13:21:09,653 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2019-09-20 13:21:09,654 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2019-09-20 13:21:09,655 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2019-09-20 13:21:09,655 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2019-09-20 13:21:09,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_alloc_urbs [2019-09-20 13:21:09,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_free_urbs [2019-09-20 13:21:09,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_kill_urbs [2019-09-20 13:21:09,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_rcvbulk_callback [2019-09-20 13:21:09,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_sndbulk_callback [2019-09-20 13:21:09,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_carrier_set [2019-09-20 13:21:09,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_carrier_check_work [2019-09-20 13:21:09,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_get_macaddr [2019-09-20 13:21:09,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_rx_submit [2019-09-20 13:21:09,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_open [2019-09-20 13:21:09,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_close [2019-09-20 13:21:09,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_tx [2019-09-20 13:21:09,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_tx_timeout [2019-09-20 13:21:09,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_ethtool_op_get_link [2019-09-20 13:21:09,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_probe [2019-09-20 13:21:09,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_disconnect [2019-09-20 13:21:09,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_driver_init [2019-09-20 13:21:09,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ipheth_driver_exit [2019-09-20 13:21:09,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2019-09-20 13:21:09,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_2 [2019-09-20 13:21:09,659 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:21:09,659 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-09-20 13:21:09,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_2 [2019-09-20 13:21:09,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_3 [2019-09-20 13:21:09,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_4 [2019-09-20 13:21:09,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_5 [2019-09-20 13:21:09,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_6 [2019-09-20 13:21:09,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_7 [2019-09-20 13:21:09,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_8 [2019-09-20 13:21:09,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_9 [2019-09-20 13:21:09,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_11 [2019-09-20 13:21:09,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_12 [2019-09-20 13:21:09,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_13 [2019-09-20 13:21:09,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_14 [2019-09-20 13:21:09,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_15 [2019-09-20 13:21:09,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_16 [2019-09-20 13:21:09,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_17 [2019-09-20 13:21:09,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_19 [2019-09-20 13:21:09,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_20 [2019-09-20 13:21:09,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2019-09-20 13:21:09,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2019-09-20 13:21:09,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2019-09-20 13:21:09,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2019-09-20 13:21:09,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2019-09-20 13:21:09,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2019-09-20 13:21:09,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2019-09-20 13:21:09,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2019-09-20 13:21:09,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2019-09-20 13:21:09,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2019-09-20 13:21:09,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2019-09-20 13:21:09,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2019-09-20 13:21:09,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2019-09-20 13:21:09,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2019-09-20 13:21:09,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2019-09-20 13:21:09,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2019-09-20 13:21:09,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-20 13:21:09,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2019-09-20 13:21:09,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2019-09-20 13:21:09,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2019-09-20 13:21:09,669 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-09-20 13:21:09,669 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_etherdev_mqs [2019-09-20 13:21:09,669 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2019-09-20 13:21:09,669 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-09-20 13:21:09,669 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2019-09-20 13:21:09,670 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2019-09-20 13:21:09,670 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2019-09-20 13:21:09,670 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2019-09-20 13:21:09,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-20 13:21:09,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_2 [2019-09-20 13:21:09,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_2 [2019-09-20 13:21:09,671 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2019-09-20 13:21:09,671 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2019-09-20 13:21:09,671 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2019-09-20 13:21:09,672 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2019-09-20 13:21:09,672 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2019-09-20 13:21:09,672 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-09-20 13:21:09,672 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2019-09-20 13:21:09,672 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2019-09-20 13:21:09,673 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2019-09-20 13:21:09,673 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-09-20 13:21:09,673 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2019-09-20 13:21:09,673 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-09-20 13:21:09,674 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_altnum_to_altsetting [2019-09-20 13:21:09,674 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-09-20 13:21:09,674 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-09-20 13:21:09,674 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-09-20 13:21:09,675 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-09-20 13:21:09,675 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-09-20 13:21:09,676 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2019-09-20 13:21:09,676 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2019-09-20 13:21:09,676 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-09-20 13:21:09,676 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-09-20 13:21:09,676 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-20 13:21:09,677 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-20 13:21:09,677 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-20 13:21:09,677 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-09-20 13:21:09,677 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-09-20 13:21:09,677 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2019-09-20 13:21:09,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:21:09,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-20 13:21:09,678 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-09-20 13:21:09,679 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-20 13:21:09,683 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2019-09-20 13:21:09,683 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2019-09-20 13:21:09,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:21:09,683 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2019-09-20 13:21:09,689 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2019-09-20 13:21:09,690 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2019-09-20 13:21:09,690 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2019-09-20 13:21:09,690 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-09-20 13:21:09,691 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-09-20 13:21:09,691 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-09-20 13:21:09,691 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-09-20 13:21:09,691 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-09-20 13:21:09,692 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-09-20 13:21:09,692 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-09-20 13:21:09,692 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-09-20 13:21:09,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:21:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2019-09-20 13:21:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2019-09-20 13:21:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2019-09-20 13:21:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2019-09-20 13:21:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2019-09-20 13:21:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2019-09-20 13:21:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2019-09-20 13:21:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2019-09-20 13:21:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2019-09-20 13:21:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-09-20 13:21:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-09-20 13:21:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_15 [2019-09-20 13:21:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_12 [2019-09-20 13:21:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-09-20 13:21:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure usb_altnum_to_altsetting [2019-09-20 13:21:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-09-20 13:21:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_19 [2019-09-20 13:21:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-09-20 13:21:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_20 [2019-09-20 13:21:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_8 [2019-09-20 13:21:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_2 [2019-09-20 13:21:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_3 [2019-09-20 13:21:09,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_4 [2019-09-20 13:21:09,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_5 [2019-09-20 13:21:09,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_6 [2019-09-20 13:21:09,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_7 [2019-09-20 13:21:09,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_9 [2019-09-20 13:21:09,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_11 [2019-09-20 13:21:09,697 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2019-09-20 13:21:09,697 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-09-20 13:21:09,697 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-09-20 13:21:09,697 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-09-20 13:21:09,698 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-09-20 13:21:09,698 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2019-09-20 13:21:09,698 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-09-20 13:21:09,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2019-09-20 13:21:09,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2019-09-20 13:21:09,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2019-09-20 13:21:09,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2019-09-20 13:21:09,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2019-09-20 13:21:09,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2019-09-20 13:21:09,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2019-09-20 13:21:09,699 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-20 13:21:09,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-20 13:21:09,699 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-09-20 13:21:09,700 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-09-20 13:21:09,700 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:21:09,700 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-20 13:21:09,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:21:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-20 13:21:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-20 13:21:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 13:21:09,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:21:09,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-09-20 13:21:09,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-09-20 13:21:09,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-09-20 13:21:09,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-20 13:21:09,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-09-20 13:21:09,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-20 13:21:09,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-20 13:21:09,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-09-20 13:21:09,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2019-09-20 13:21:09,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_2 [2019-09-20 13:21:09,704 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-09-20 13:21:09,704 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2019-09-20 13:21:09,704 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2019-09-20 13:21:09,705 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2019-09-20 13:21:09,705 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2019-09-20 13:21:09,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:21:09,705 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-09-20 13:21:09,705 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2019-09-20 13:21:09,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_14 [2019-09-20 13:21:09,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_17 [2019-09-20 13:21:09,705 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2019-09-20 13:21:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2019-09-20 13:21:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2019-09-20 13:21:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2019-09-20 13:21:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2019-09-20 13:21:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2019-09-20 13:21:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2019-09-20 13:21:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:21:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2019-09-20 13:21:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2019-09-20 13:21:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2019-09-20 13:21:09,708 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2019-09-20 13:21:09,708 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2019-09-20 13:21:09,708 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2019-09-20 13:21:09,708 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2019-09-20 13:21:09,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_13 [2019-09-20 13:21:09,708 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2019-09-20 13:21:09,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_16 [2019-09-20 13:21:09,709 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2019-09-20 13:21:09,709 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_etherdev_mqs [2019-09-20 13:21:09,709 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_rx_submit [2019-09-20 13:21:09,709 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_alloc_urbs [2019-09-20 13:21:09,709 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_free_urbs [2019-09-20 13:21:09,709 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_kill_urbs [2019-09-20 13:21:09,710 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_rcvbulk_callback [2019-09-20 13:21:09,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-09-20 13:21:09,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:21:09,710 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_sndbulk_callback [2019-09-20 13:21:09,710 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_carrier_set [2019-09-20 13:21:09,710 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_carrier_check_work [2019-09-20 13:21:09,710 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_get_macaddr [2019-09-20 13:21:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_open [2019-09-20 13:21:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_close [2019-09-20 13:21:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_tx [2019-09-20 13:21:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-20 13:21:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_tx_timeout [2019-09-20 13:21:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_ethtool_op_get_link [2019-09-20 13:21:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_probe [2019-09-20 13:21:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2019-09-20 13:21:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:21:09,720 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_disconnect [2019-09-20 13:21:09,720 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_driver_init [2019-09-20 13:21:09,720 INFO L130 BoogieDeclarations]: Found specification of procedure ipheth_driver_exit [2019-09-20 13:21:09,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_2 [2019-09-20 13:21:09,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_2 [2019-09-20 13:21:09,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-20 13:21:09,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-20 13:21:09,723 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:21:09,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2019-09-20 13:21:09,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2019-09-20 13:21:09,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2019-09-20 13:21:09,723 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-09-20 13:21:09,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2019-09-20 13:21:09,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2019-09-20 13:21:09,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2019-09-20 13:21:09,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2019-09-20 13:21:09,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2019-09-20 13:21:09,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2019-09-20 13:21:09,724 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-20 13:21:09,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-20 13:21:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2019-09-20 13:21:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:21:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:21:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:21:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-20 13:21:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:21:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-09-20 13:21:09,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-09-20 13:21:09,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-09-20 13:21:09,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-09-20 13:21:10,607 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-20 13:21:11,864 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2019-09-20 13:21:12,608 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:21:12,608 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 13:21:12,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:21:12 BoogieIcfgContainer [2019-09-20 13:21:12,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:21:12,611 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:21:12,611 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:21:12,614 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:21:12,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:21:06" (1/3) ... [2019-09-20 13:21:12,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d4d9913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:21:12, skipping insertion in model container [2019-09-20 13:21:12,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:09" (2/3) ... [2019-09-20 13:21:12,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d4d9913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:21:12, skipping insertion in model container [2019-09-20 13:21:12,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:21:12" (3/3) ... [2019-09-20 13:21:12,618 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--ipheth.ko-entry_point.cil.out.i [2019-09-20 13:21:12,628 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:21:12,641 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:21:12,660 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:21:12,702 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-20 13:21:12,703 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:21:12,703 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-20 13:21:12,703 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:21:12,704 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:21:12,704 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:21:12,704 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:21:12,704 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:21:12,704 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:21:12,750 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states. [2019-09-20 13:21:12,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:21:12,778 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:12,779 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:21:12,782 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:12,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:12,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1498368261, now seen corresponding path program 1 times [2019-09-20 13:21:12,791 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:12,791 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:12,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:12,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:12,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:13,471 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-09-20 13:21:13,474 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:21:13,474 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:21:13,479 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:21:13,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:21:13,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:13,497 INFO L87 Difference]: Start difference. First operand 858 states. Second operand 3 states. [2019-09-20 13:21:13,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:13,840 INFO L93 Difference]: Finished difference Result 2401 states and 2907 transitions. [2019-09-20 13:21:13,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:21:13,845 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2019-09-20 13:21:13,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:13,885 INFO L225 Difference]: With dead ends: 2401 [2019-09-20 13:21:13,885 INFO L226 Difference]: Without dead ends: 1561 [2019-09-20 13:21:13,898 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:13,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2019-09-20 13:21:14,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 1561. [2019-09-20 13:21:14,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1561 states. [2019-09-20 13:21:14,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 1868 transitions. [2019-09-20 13:21:14,137 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 1868 transitions. Word has length 51 [2019-09-20 13:21:14,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:14,138 INFO L475 AbstractCegarLoop]: Abstraction has 1561 states and 1868 transitions. [2019-09-20 13:21:14,138 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:21:14,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 1868 transitions. [2019-09-20 13:21:14,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-09-20 13:21:14,148 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:14,148 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:21:14,148 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:14,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:14,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1524264505, now seen corresponding path program 1 times [2019-09-20 13:21:14,149 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:14,149 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:14,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:14,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:14,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:14,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:14,334 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-09-20 13:21:14,334 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:21:14,335 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:21:14,337 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:21:14,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:21:14,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:14,338 INFO L87 Difference]: Start difference. First operand 1561 states and 1868 transitions. Second operand 3 states. [2019-09-20 13:21:14,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:14,430 INFO L93 Difference]: Finished difference Result 1587 states and 1900 transitions. [2019-09-20 13:21:14,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:21:14,430 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2019-09-20 13:21:14,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:14,439 INFO L225 Difference]: With dead ends: 1587 [2019-09-20 13:21:14,440 INFO L226 Difference]: Without dead ends: 1574 [2019-09-20 13:21:14,441 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:14,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2019-09-20 13:21:14,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1561. [2019-09-20 13:21:14,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1561 states. [2019-09-20 13:21:14,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 1867 transitions. [2019-09-20 13:21:14,532 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 1867 transitions. Word has length 67 [2019-09-20 13:21:14,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:14,533 INFO L475 AbstractCegarLoop]: Abstraction has 1561 states and 1867 transitions. [2019-09-20 13:21:14,533 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:21:14,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 1867 transitions. [2019-09-20 13:21:14,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-09-20 13:21:14,537 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:14,538 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:21:14,538 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:14,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:14,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1467006203, now seen corresponding path program 1 times [2019-09-20 13:21:14,538 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:14,539 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:14,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:14,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:14,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:14,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:14,850 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-09-20 13:21:14,851 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:21:14,851 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:21:14,852 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:21:14,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:21:14,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:14,852 INFO L87 Difference]: Start difference. First operand 1561 states and 1867 transitions. Second operand 3 states. [2019-09-20 13:21:15,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:15,143 INFO L93 Difference]: Finished difference Result 4650 states and 5708 transitions. [2019-09-20 13:21:15,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:21:15,144 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2019-09-20 13:21:15,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:15,173 INFO L225 Difference]: With dead ends: 4650 [2019-09-20 13:21:15,173 INFO L226 Difference]: Without dead ends: 3105 [2019-09-20 13:21:15,180 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:15,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3105 states. [2019-09-20 13:21:15,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3105 to 3095. [2019-09-20 13:21:15,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3095 states. [2019-09-20 13:21:15,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3095 states to 3095 states and 3761 transitions. [2019-09-20 13:21:15,362 INFO L78 Accepts]: Start accepts. Automaton has 3095 states and 3761 transitions. Word has length 67 [2019-09-20 13:21:15,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:15,363 INFO L475 AbstractCegarLoop]: Abstraction has 3095 states and 3761 transitions. [2019-09-20 13:21:15,363 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:21:15,363 INFO L276 IsEmpty]: Start isEmpty. Operand 3095 states and 3761 transitions. [2019-09-20 13:21:15,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-20 13:21:15,366 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:15,367 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:21:15,367 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:15,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:15,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1767020886, now seen corresponding path program 1 times [2019-09-20 13:21:15,368 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:15,368 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:15,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:15,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:15,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:15,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:15,604 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-09-20 13:21:15,604 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:21:15,605 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:21:15,605 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:21:15,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:21:15,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:15,606 INFO L87 Difference]: Start difference. First operand 3095 states and 3761 transitions. Second operand 3 states. [2019-09-20 13:21:15,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:15,705 INFO L93 Difference]: Finished difference Result 3097 states and 3762 transitions. [2019-09-20 13:21:15,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:21:15,706 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2019-09-20 13:21:15,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:15,726 INFO L225 Difference]: With dead ends: 3097 [2019-09-20 13:21:15,727 INFO L226 Difference]: Without dead ends: 3094 [2019-09-20 13:21:15,729 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:15,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3094 states. [2019-09-20 13:21:15,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3094 to 3094. [2019-09-20 13:21:15,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3094 states. [2019-09-20 13:21:15,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3094 states to 3094 states and 3759 transitions. [2019-09-20 13:21:15,889 INFO L78 Accepts]: Start accepts. Automaton has 3094 states and 3759 transitions. Word has length 68 [2019-09-20 13:21:15,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:15,891 INFO L475 AbstractCegarLoop]: Abstraction has 3094 states and 3759 transitions. [2019-09-20 13:21:15,891 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:21:15,891 INFO L276 IsEmpty]: Start isEmpty. Operand 3094 states and 3759 transitions. [2019-09-20 13:21:15,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-20 13:21:15,896 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:15,896 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:21:15,896 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:15,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:15,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1057349592, now seen corresponding path program 1 times [2019-09-20 13:21:15,897 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:15,897 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:15,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:15,904 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:15,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:15,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:16,047 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-09-20 13:21:16,047 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:21:16,047 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:21:16,048 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:21:16,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:21:16,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:16,049 INFO L87 Difference]: Start difference. First operand 3094 states and 3759 transitions. Second operand 3 states. [2019-09-20 13:21:16,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:16,196 INFO L93 Difference]: Finished difference Result 3096 states and 3760 transitions. [2019-09-20 13:21:16,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:21:16,197 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2019-09-20 13:21:16,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:16,214 INFO L225 Difference]: With dead ends: 3096 [2019-09-20 13:21:16,215 INFO L226 Difference]: Without dead ends: 3093 [2019-09-20 13:21:16,217 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:16,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3093 states. [2019-09-20 13:21:16,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3093 to 3093. [2019-09-20 13:21:16,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3093 states. [2019-09-20 13:21:16,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3093 states to 3093 states and 3757 transitions. [2019-09-20 13:21:16,364 INFO L78 Accepts]: Start accepts. Automaton has 3093 states and 3757 transitions. Word has length 69 [2019-09-20 13:21:16,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:16,365 INFO L475 AbstractCegarLoop]: Abstraction has 3093 states and 3757 transitions. [2019-09-20 13:21:16,365 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:21:16,366 INFO L276 IsEmpty]: Start isEmpty. Operand 3093 states and 3757 transitions. [2019-09-20 13:21:16,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-20 13:21:16,369 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:16,369 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:21:16,369 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:16,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:16,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1581483673, now seen corresponding path program 1 times [2019-09-20 13:21:16,370 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:16,370 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:16,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:16,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:16,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:16,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:16,517 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-09-20 13:21:16,518 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:21:16,518 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:21:16,519 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:21:16,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:21:16,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:16,519 INFO L87 Difference]: Start difference. First operand 3093 states and 3757 transitions. Second operand 3 states. [2019-09-20 13:21:16,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:16,601 INFO L93 Difference]: Finished difference Result 3095 states and 3758 transitions. [2019-09-20 13:21:16,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:21:16,605 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2019-09-20 13:21:16,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:16,622 INFO L225 Difference]: With dead ends: 3095 [2019-09-20 13:21:16,623 INFO L226 Difference]: Without dead ends: 3092 [2019-09-20 13:21:16,627 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:16,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3092 states. [2019-09-20 13:21:16,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3092 to 3092. [2019-09-20 13:21:16,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3092 states. [2019-09-20 13:21:16,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3092 states to 3092 states and 3755 transitions. [2019-09-20 13:21:16,771 INFO L78 Accepts]: Start accepts. Automaton has 3092 states and 3755 transitions. Word has length 70 [2019-09-20 13:21:16,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:16,772 INFO L475 AbstractCegarLoop]: Abstraction has 3092 states and 3755 transitions. [2019-09-20 13:21:16,772 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:21:16,772 INFO L276 IsEmpty]: Start isEmpty. Operand 3092 states and 3755 transitions. [2019-09-20 13:21:16,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-09-20 13:21:16,774 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:16,775 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:21:16,775 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:16,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:16,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1780941131, now seen corresponding path program 1 times [2019-09-20 13:21:16,776 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:16,776 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:16,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:16,784 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:16,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:16,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:16,972 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-09-20 13:21:16,973 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:21:16,973 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:21:16,974 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:21:16,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:21:16,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:16,975 INFO L87 Difference]: Start difference. First operand 3092 states and 3755 transitions. Second operand 3 states. [2019-09-20 13:21:17,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:17,094 INFO L93 Difference]: Finished difference Result 3094 states and 3756 transitions. [2019-09-20 13:21:17,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:21:17,095 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2019-09-20 13:21:17,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:17,122 INFO L225 Difference]: With dead ends: 3094 [2019-09-20 13:21:17,123 INFO L226 Difference]: Without dead ends: 3072 [2019-09-20 13:21:17,126 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:17,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3072 states. [2019-09-20 13:21:17,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3072 to 3072. [2019-09-20 13:21:17,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3072 states. [2019-09-20 13:21:17,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3072 states to 3072 states and 3732 transitions. [2019-09-20 13:21:17,360 INFO L78 Accepts]: Start accepts. Automaton has 3072 states and 3732 transitions. Word has length 71 [2019-09-20 13:21:17,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:17,361 INFO L475 AbstractCegarLoop]: Abstraction has 3072 states and 3732 transitions. [2019-09-20 13:21:17,361 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:21:17,362 INFO L276 IsEmpty]: Start isEmpty. Operand 3072 states and 3732 transitions. [2019-09-20 13:21:17,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-09-20 13:21:17,378 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:17,379 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2019-09-20 13:21:17,379 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:17,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:17,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1839694324, now seen corresponding path program 1 times [2019-09-20 13:21:17,380 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:17,380 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:17,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:17,386 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:17,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:17,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:17,589 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-09-20 13:21:17,589 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:21:17,590 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:21:17,591 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:21:17,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:21:17,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:17,592 INFO L87 Difference]: Start difference. First operand 3072 states and 3732 transitions. Second operand 3 states. [2019-09-20 13:21:17,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:17,829 INFO L93 Difference]: Finished difference Result 8160 states and 9895 transitions. [2019-09-20 13:21:17,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:21:17,830 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2019-09-20 13:21:17,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:17,860 INFO L225 Difference]: With dead ends: 8160 [2019-09-20 13:21:17,860 INFO L226 Difference]: Without dead ends: 5104 [2019-09-20 13:21:17,873 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:17,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5104 states. [2019-09-20 13:21:18,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5104 to 5071. [2019-09-20 13:21:18,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5071 states. [2019-09-20 13:21:18,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5071 states to 5071 states and 6140 transitions. [2019-09-20 13:21:18,171 INFO L78 Accepts]: Start accepts. Automaton has 5071 states and 6140 transitions. Word has length 234 [2019-09-20 13:21:18,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:18,171 INFO L475 AbstractCegarLoop]: Abstraction has 5071 states and 6140 transitions. [2019-09-20 13:21:18,171 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:21:18,172 INFO L276 IsEmpty]: Start isEmpty. Operand 5071 states and 6140 transitions. [2019-09-20 13:21:18,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2019-09-20 13:21:18,186 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:18,187 INFO L407 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:21:18,187 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:18,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:18,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1679693862, now seen corresponding path program 1 times [2019-09-20 13:21:18,188 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:18,188 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:18,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:18,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:18,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:18,397 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-20 13:21:18,397 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:21:18,397 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:21:18,398 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:21:18,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:21:18,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:18,399 INFO L87 Difference]: Start difference. First operand 5071 states and 6140 transitions. Second operand 3 states. [2019-09-20 13:21:18,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:18,601 INFO L93 Difference]: Finished difference Result 10121 states and 12268 transitions. [2019-09-20 13:21:18,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:21:18,602 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 253 [2019-09-20 13:21:18,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:18,642 INFO L225 Difference]: With dead ends: 10121 [2019-09-20 13:21:18,643 INFO L226 Difference]: Without dead ends: 5075 [2019-09-20 13:21:18,661 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:18,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5075 states. [2019-09-20 13:21:18,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5075 to 5075. [2019-09-20 13:21:18,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5075 states. [2019-09-20 13:21:18,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5075 states to 5075 states and 6144 transitions. [2019-09-20 13:21:18,934 INFO L78 Accepts]: Start accepts. Automaton has 5075 states and 6144 transitions. Word has length 253 [2019-09-20 13:21:18,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:18,935 INFO L475 AbstractCegarLoop]: Abstraction has 5075 states and 6144 transitions. [2019-09-20 13:21:18,935 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:21:18,935 INFO L276 IsEmpty]: Start isEmpty. Operand 5075 states and 6144 transitions. [2019-09-20 13:21:18,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2019-09-20 13:21:18,956 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:18,957 INFO L407 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:21:18,957 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:18,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:18,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1004533736, now seen corresponding path program 1 times [2019-09-20 13:21:18,958 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:18,958 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:18,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:18,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:18,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:19,442 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-20 13:21:19,442 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:21:19,443 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:21:19,443 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:21:19,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:21:19,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:21:19,444 INFO L87 Difference]: Start difference. First operand 5075 states and 6144 transitions. Second operand 6 states. [2019-09-20 13:21:19,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:19,734 INFO L93 Difference]: Finished difference Result 10153 states and 12304 transitions. [2019-09-20 13:21:19,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:21:19,735 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 253 [2019-09-20 13:21:19,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:19,765 INFO L225 Difference]: With dead ends: 10153 [2019-09-20 13:21:19,765 INFO L226 Difference]: Without dead ends: 5103 [2019-09-20 13:21:19,785 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:21:19,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5103 states. [2019-09-20 13:21:20,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5103 to 5095. [2019-09-20 13:21:20,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5095 states. [2019-09-20 13:21:20,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5095 states to 5095 states and 6164 transitions. [2019-09-20 13:21:20,031 INFO L78 Accepts]: Start accepts. Automaton has 5095 states and 6164 transitions. Word has length 253 [2019-09-20 13:21:20,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:20,032 INFO L475 AbstractCegarLoop]: Abstraction has 5095 states and 6164 transitions. [2019-09-20 13:21:20,032 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:21:20,032 INFO L276 IsEmpty]: Start isEmpty. Operand 5095 states and 6164 transitions. [2019-09-20 13:21:20,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2019-09-20 13:21:20,048 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:20,048 INFO L407 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:21:20,048 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:20,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:20,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1793335869, now seen corresponding path program 1 times [2019-09-20 13:21:20,049 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:20,049 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:20,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:20,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:20,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:20,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:20,377 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-20 13:21:20,377 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:21:20,377 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:21:20,378 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:21:20,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:21:20,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:21:20,379 INFO L87 Difference]: Start difference. First operand 5095 states and 6164 transitions. Second operand 8 states. [2019-09-20 13:21:21,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:21,150 INFO L93 Difference]: Finished difference Result 15347 states and 18600 transitions. [2019-09-20 13:21:21,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-20 13:21:21,151 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 263 [2019-09-20 13:21:21,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:21,214 INFO L225 Difference]: With dead ends: 15347 [2019-09-20 13:21:21,214 INFO L226 Difference]: Without dead ends: 10277 [2019-09-20 13:21:21,239 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2019-09-20 13:21:21,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10277 states. [2019-09-20 13:21:21,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10277 to 5155. [2019-09-20 13:21:21,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5155 states. [2019-09-20 13:21:21,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 6238 transitions. [2019-09-20 13:21:21,621 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 6238 transitions. Word has length 263 [2019-09-20 13:21:21,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:21,625 INFO L475 AbstractCegarLoop]: Abstraction has 5155 states and 6238 transitions. [2019-09-20 13:21:21,625 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:21:21,625 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 6238 transitions. [2019-09-20 13:21:21,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2019-09-20 13:21:21,646 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:21,647 INFO L407 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:21:21,647 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:21,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:21,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1659322363, now seen corresponding path program 1 times [2019-09-20 13:21:21,648 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:21,648 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:21,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:21,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:21,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:21,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:22,030 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-20 13:21:22,031 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:21:22,031 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-20 13:21:22,032 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-20 13:21:22,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-20 13:21:22,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:21:22,033 INFO L87 Difference]: Start difference. First operand 5155 states and 6238 transitions. Second operand 9 states. [2019-09-20 13:21:22,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:22,349 INFO L93 Difference]: Finished difference Result 10325 states and 12508 transitions. [2019-09-20 13:21:22,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-20 13:21:22,349 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 263 [2019-09-20 13:21:22,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:22,374 INFO L225 Difference]: With dead ends: 10325 [2019-09-20 13:21:22,374 INFO L226 Difference]: Without dead ends: 5195 [2019-09-20 13:21:22,392 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:21:22,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5195 states. [2019-09-20 13:21:22,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5195 to 5195. [2019-09-20 13:21:22,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5195 states. [2019-09-20 13:21:22,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 6278 transitions. [2019-09-20 13:21:22,731 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 6278 transitions. Word has length 263 [2019-09-20 13:21:22,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:22,732 INFO L475 AbstractCegarLoop]: Abstraction has 5195 states and 6278 transitions. [2019-09-20 13:21:22,732 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-20 13:21:22,732 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 6278 transitions. [2019-09-20 13:21:22,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2019-09-20 13:21:22,748 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:22,748 INFO L407 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:21:22,748 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:22,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:22,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1803732058, now seen corresponding path program 1 times [2019-09-20 13:21:22,749 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:22,749 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:22,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:22,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:22,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:23,055 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-20 13:21:23,055 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:21:23,055 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:21:23,056 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:21:23,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:21:23,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:23,057 INFO L87 Difference]: Start difference. First operand 5195 states and 6278 transitions. Second operand 3 states. [2019-09-20 13:21:23,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:23,375 INFO L93 Difference]: Finished difference Result 10357 states and 12536 transitions. [2019-09-20 13:21:23,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:21:23,376 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 263 [2019-09-20 13:21:23,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:23,396 INFO L225 Difference]: With dead ends: 10357 [2019-09-20 13:21:23,396 INFO L226 Difference]: Without dead ends: 5187 [2019-09-20 13:21:23,412 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:23,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5187 states. [2019-09-20 13:21:23,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5187 to 5187. [2019-09-20 13:21:23,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5187 states. [2019-09-20 13:21:23,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 6262 transitions. [2019-09-20 13:21:23,732 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 6262 transitions. Word has length 263 [2019-09-20 13:21:23,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:23,733 INFO L475 AbstractCegarLoop]: Abstraction has 5187 states and 6262 transitions. [2019-09-20 13:21:23,733 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:21:23,733 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 6262 transitions. [2019-09-20 13:21:23,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2019-09-20 13:21:23,748 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:23,748 INFO L407 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:21:23,749 INFO L418 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:23,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:23,749 INFO L82 PathProgramCache]: Analyzing trace with hash -615419366, now seen corresponding path program 1 times [2019-09-20 13:21:23,749 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:23,750 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:23,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:23,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:23,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:24,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:24,371 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-20 13:21:24,372 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:21:24,372 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:21:24,372 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:21:24,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:21:24,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:21:24,373 INFO L87 Difference]: Start difference. First operand 5187 states and 6262 transitions. Second operand 5 states. [2019-09-20 13:21:24,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:24,844 INFO L93 Difference]: Finished difference Result 10381 states and 12576 transitions. [2019-09-20 13:21:24,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:21:24,845 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 263 [2019-09-20 13:21:24,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:24,864 INFO L225 Difference]: With dead ends: 10381 [2019-09-20 13:21:24,864 INFO L226 Difference]: Without dead ends: 5219 [2019-09-20 13:21:24,880 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:21:24,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5219 states. [2019-09-20 13:21:25,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5219 to 5203. [2019-09-20 13:21:25,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5203 states. [2019-09-20 13:21:25,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 6290 transitions. [2019-09-20 13:21:25,137 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 6290 transitions. Word has length 263 [2019-09-20 13:21:25,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:25,138 INFO L475 AbstractCegarLoop]: Abstraction has 5203 states and 6290 transitions. [2019-09-20 13:21:25,138 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:21:25,138 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 6290 transitions. [2019-09-20 13:21:25,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2019-09-20 13:21:25,153 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:25,153 INFO L407 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:21:25,154 INFO L418 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:25,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:25,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1518450799, now seen corresponding path program 1 times [2019-09-20 13:21:25,154 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:25,154 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:25,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:25,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:25,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:25,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:25,496 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-20 13:21:25,497 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:21:25,497 INFO L224 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 [2019-09-20 13:21:25,778 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:26,259 INFO L256 TraceCheckSpWp]: Trace formula consists of 2888 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-20 13:21:26,280 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 13:21:26,422 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-09-20 13:21:26,437 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-20 13:21:26,438 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2019-09-20 13:21:26,441 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:21:26,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:21:26,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:21:26,442 INFO L87 Difference]: Start difference. First operand 5203 states and 6290 transitions. Second operand 7 states. [2019-09-20 13:21:27,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:27,192 INFO L93 Difference]: Finished difference Result 10405 states and 12768 transitions. [2019-09-20 13:21:27,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:21:27,192 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 264 [2019-09-20 13:21:27,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:27,219 INFO L225 Difference]: With dead ends: 10405 [2019-09-20 13:21:27,219 INFO L226 Difference]: Without dead ends: 5227 [2019-09-20 13:21:27,242 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:21:27,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5227 states. [2019-09-20 13:21:27,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5227 to 5215. [2019-09-20 13:21:27,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5215 states. [2019-09-20 13:21:27,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 6306 transitions. [2019-09-20 13:21:27,575 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 6306 transitions. Word has length 264 [2019-09-20 13:21:27,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:27,576 INFO L475 AbstractCegarLoop]: Abstraction has 5215 states and 6306 transitions. [2019-09-20 13:21:27,576 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:21:27,577 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 6306 transitions. [2019-09-20 13:21:27,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2019-09-20 13:21:27,592 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:27,592 INFO L407 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:21:27,592 INFO L418 AbstractCegarLoop]: === Iteration 16 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:27,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:27,593 INFO L82 PathProgramCache]: Analyzing trace with hash -845591944, now seen corresponding path program 1 times [2019-09-20 13:21:27,593 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:27,593 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:27,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:27,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:27,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:27,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:28,129 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-09-20 13:21:28,132 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:21:28,132 INFO L224 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) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-20 13:21:28,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:29,105 INFO L256 TraceCheckSpWp]: Trace formula consists of 2898 conjuncts, 7 conjunts are in the unsatisfiable core [2019-09-20 13:21:29,122 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 13:21:29,207 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (3)] Exception during sending of exit command (exit): Stream closed [2019-09-20 13:21:29,219 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-20 13:21:29,219 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2019-09-20 13:21:29,221 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:21:29,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:21:29,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:21:29,221 INFO L87 Difference]: Start difference. First operand 5215 states and 6306 transitions. Second operand 7 states. [2019-09-20 13:21:30,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:30,020 INFO L93 Difference]: Finished difference Result 10457 states and 12692 transitions. [2019-09-20 13:21:30,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:21:30,021 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 265 [2019-09-20 13:21:30,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:30,040 INFO L225 Difference]: With dead ends: 10457 [2019-09-20 13:21:30,040 INFO L226 Difference]: Without dead ends: 5267 [2019-09-20 13:21:30,052 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 263 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:21:30,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5267 states. [2019-09-20 13:21:30,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5267 to 5223. [2019-09-20 13:21:30,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5223 states. [2019-09-20 13:21:30,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5223 states to 5223 states and 6318 transitions. [2019-09-20 13:21:30,328 INFO L78 Accepts]: Start accepts. Automaton has 5223 states and 6318 transitions. Word has length 265 [2019-09-20 13:21:30,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:30,329 INFO L475 AbstractCegarLoop]: Abstraction has 5223 states and 6318 transitions. [2019-09-20 13:21:30,329 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:21:30,329 INFO L276 IsEmpty]: Start isEmpty. Operand 5223 states and 6318 transitions. [2019-09-20 13:21:30,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2019-09-20 13:21:30,345 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:30,345 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:21:30,346 INFO L418 AbstractCegarLoop]: === Iteration 17 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:30,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:30,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1075405265, now seen corresponding path program 2 times [2019-09-20 13:21:30,346 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:30,346 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:30,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:30,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:30,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:30,804 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-09-20 13:21:30,804 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:21:30,804 INFO L224 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 [2019-09-20 13:21:31,004 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-09-20 13:21:32,358 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-20 13:21:32,359 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-20 13:21:32,379 INFO L256 TraceCheckSpWp]: Trace formula consists of 2938 conjuncts, 30 conjunts are in the unsatisfiable core [2019-09-20 13:21:32,388 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 13:21:32,545 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-09-20 13:21:32,561 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:21:32,562 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2019-09-20 13:21:32,563 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-20 13:21:32,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-20 13:21:32,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-09-20 13:21:32,564 INFO L87 Difference]: Start difference. First operand 5223 states and 6318 transitions. Second operand 13 states.