java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 23:38:58,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 23:38:58,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 23:38:58,600 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 23:38:58,600 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 23:38:58,602 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 23:38:58,604 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 23:38:58,606 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 23:38:58,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 23:38:58,610 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 23:38:58,611 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 23:38:58,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 23:38:58,613 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 23:38:58,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 23:38:58,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 23:38:58,617 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 23:38:58,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 23:38:58,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 23:38:58,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 23:38:58,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 23:38:58,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 23:38:58,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 23:38:58,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 23:38:58,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 23:38:58,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 23:38:58,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 23:38:58,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 23:38:58,638 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 23:38:58,638 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 23:38:58,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 23:38:58,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 23:38:58,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 23:38:58,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 23:38:58,643 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 23:38:58,645 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 23:38:58,645 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 23:38:58,646 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 23:38:58,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 23:38:58,647 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 23:38:58,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 23:38:58,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 23:38:58,650 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-02 23:38:58,670 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 23:38:58,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 23:38:58,671 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-02 23:38:58,672 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-02 23:38:58,672 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-02 23:38:58,673 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-02 23:38:58,673 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-02 23:38:58,673 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-02 23:38:58,673 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-02 23:38:58,674 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-02 23:38:58,675 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 23:38:58,675 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 23:38:58,675 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 23:38:58,675 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 23:38:58,676 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 23:38:58,676 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 23:38:58,676 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 23:38:58,676 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 23:38:58,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 23:38:58,677 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 23:38:58,677 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 23:38:58,677 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-02 23:38:58,677 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 23:38:58,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 23:38:58,678 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 23:38:58,678 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 23:38:58,678 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-02 23:38:58,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 23:38:58,679 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 23:38:58,679 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-02 23:38:58,714 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 23:38:58,729 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 23:38:58,734 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 23:38:58,735 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 23:38:58,736 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 23:38:58,737 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2019-10-02 23:38:58,822 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f11a879b/71b57ccf0b104bf9a4eb2f7d6f426e67/FLAG6dfc002a3 [2019-10-02 23:39:00,075 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 23:39:00,076 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2019-10-02 23:39:00,160 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f11a879b/71b57ccf0b104bf9a4eb2f7d6f426e67/FLAG6dfc002a3 [2019-10-02 23:39:00,223 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f11a879b/71b57ccf0b104bf9a4eb2f7d6f426e67 [2019-10-02 23:39:00,241 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 23:39:00,244 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 23:39:00,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 23:39:00,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 23:39:00,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 23:39:00,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 11:39:00" (1/1) ... [2019-10-02 23:39:00,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ed7504f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:39:00, skipping insertion in model container [2019-10-02 23:39:00,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 11:39:00" (1/1) ... [2019-10-02 23:39:00,270 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 23:39:00,476 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 23:39:02,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 23:39:02,797 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 23:39:03,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 23:39:03,610 INFO L192 MainTranslator]: Completed translation [2019-10-02 23:39:03,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:39:03 WrapperNode [2019-10-02 23:39:03,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 23:39:03,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 23:39:03,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 23:39:03,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 23:39:03,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:39:03" (1/1) ... [2019-10-02 23:39:03,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:39:03" (1/1) ... [2019-10-02 23:39:03,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:39:03" (1/1) ... [2019-10-02 23:39:03,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:39:03" (1/1) ... [2019-10-02 23:39:03,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:39:03" (1/1) ... [2019-10-02 23:39:03,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:39:03" (1/1) ... [2019-10-02 23:39:03,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:39:03" (1/1) ... [2019-10-02 23:39:04,004 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 23:39:04,005 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 23:39:04,005 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 23:39:04,006 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 23:39:04,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:39:03" (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 [2019-10-02 23:39:04,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 23:39:04,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 23:39:04,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-10-02 23:39:04,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-02 23:39:04,113 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-02 23:39:04,113 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-02 23:39:04,113 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2019-10-02 23:39:04,114 INFO L138 BoogieDeclarations]: Found implementation of procedure device_lock [2019-10-02 23:39:04,114 INFO L138 BoogieDeclarations]: Found implementation of procedure device_unlock [2019-10-02 23:39:04,114 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2019-10-02 23:39:04,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-02 23:39:04,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-02 23:39:04,115 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-02 23:39:04,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-02 23:39:04,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-02 23:39:04,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-02 23:39:04,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-02 23:39:04,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-02 23:39:04,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-02 23:39:04,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-02 23:39:04,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-02 23:39:04,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-02 23:39:04,116 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2019-10-02 23:39:04,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_head_init [2019-10-02 23:39:04,117 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2019-10-02 23:39:04,119 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2019-10-02 23:39:04,119 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2019-10-02 23:39:04,120 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2019-10-02 23:39:04,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_alloc_skb [2019-10-02 23:39:04,120 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2019-10-02 23:39:04,120 INFO L138 BoogieDeclarations]: Found implementation of procedure set_wiphy_dev [2019-10-02 23:39:04,120 INFO L138 BoogieDeclarations]: Found implementation of procedure SET_IEEE80211_DEV [2019-10-02 23:39:04,121 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_rx_cb [2019-10-02 23:39:04,121 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_tx_cb [2019-10-02 23:39:04,121 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_tx_dummy_cb [2019-10-02 23:39:04,122 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_free_urbs [2019-10-02 23:39:04,122 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_stop [2019-10-02 23:39:04,122 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_init_urbs [2019-10-02 23:39:04,122 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_open [2019-10-02 23:39:04,122 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_lm87_chksum [2019-10-02 23:39:04,122 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_tx_lm87 [2019-10-02 23:39:04,123 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_tx_net2280 [2019-10-02 23:39:04,123 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_write [2019-10-02 23:39:04,123 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_read [2019-10-02 23:39:04,123 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_bulk_msg [2019-10-02 23:39:04,124 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_device_reset [2019-10-02 23:39:04,124 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_firmware_reset_3887 [2019-10-02 23:39:04,124 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_upload_firmware_3887 [2019-10-02 23:39:04,124 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_upload_firmware_net2280 [2019-10-02 23:39:04,125 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_find_type [2019-10-02 23:39:04,125 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_start_ops [2019-10-02 23:39:04,125 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_load_firmware_cb [2019-10-02 23:39:04,125 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_load_firmware [2019-10-02 23:39:04,125 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_probe [2019-10-02 23:39:04,125 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_disconnect [2019-10-02 23:39:04,126 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_pre_reset [2019-10-02 23:39:04,126 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_resume [2019-10-02 23:39:04,126 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_post_reset [2019-10-02 23:39:04,126 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_suspend [2019-10-02 23:39:04,126 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_driver_init [2019-10-02 23:39:04,126 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_driver_exit [2019-10-02 23:39:04,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2019-10-02 23:39:04,127 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 23:39:04,127 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-10-02 23:39:04,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2019-10-02 23:39:04,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_3 [2019-10-02 23:39:04,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_4 [2019-10-02 23:39:04,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_5 [2019-10-02 23:39:04,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_6 [2019-10-02 23:39:04,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_7 [2019-10-02 23:39:04,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_8 [2019-10-02 23:39:04,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_9 [2019-10-02 23:39:04,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_11 [2019-10-02 23:39:04,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_12 [2019-10-02 23:39:04,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_13 [2019-10-02 23:39:04,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_14 [2019-10-02 23:39:04,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_17 [2019-10-02 23:39:04,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_18 [2019-10-02 23:39:04,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_19 [2019-10-02 23:39:04,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_20 [2019-10-02 23:39:04,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_dev_21 [2019-10-02 23:39:04,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev_22 [2019-10-02 23:39:04,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_23 [2019-10-02 23:39:04,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev_24 [2019-10-02 23:39:04,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_dev_26 [2019-10-02 23:39:04,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_30 [2019-10-02 23:39:04,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_31 [2019-10-02 23:39:04,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2019-10-02 23:39:04,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2019-10-02 23:39:04,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2019-10-02 23:39:04,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2019-10-02 23:39:04,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2019-10-02 23:39:04,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2019-10-02 23:39:04,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2019-10-02 23:39:04,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2019-10-02 23:39:04,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2019-10-02 23:39:04,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2019-10-02 23:39:04,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2019-10-02 23:39:04,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2019-10-02 23:39:04,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2019-10-02 23:39:04,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2019-10-02 23:39:04,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2019-10-02 23:39:04,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2019-10-02 23:39:04,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-02 23:39:04,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-02 23:39:04,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-02 23:39:04,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2019-10-02 23:39:04,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-02 23:39:04,140 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-02 23:39:04,140 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2019-10-02 23:39:04,140 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2019-10-02 23:39:04,140 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-02 23:39:04,140 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2019-10-02 23:39:04,140 INFO L138 BoogieDeclarations]: Found implementation of procedure device_release_driver [2019-10-02 23:39:04,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_restart_hw [2019-10-02 23:39:04,141 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2019-10-02 23:39:04,141 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2019-10-02 23:39:04,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-02 23:39:04,142 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2019-10-02 23:39:04,143 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-02 23:39:04,143 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-02 23:39:04,143 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_free_common [2019-10-02 23:39:04,144 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_free_skb [2019-10-02 23:39:04,144 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_init_common [2019-10-02 23:39:04,145 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_parse_firmware [2019-10-02 23:39:04,145 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_read_eeprom [2019-10-02 23:39:04,145 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_register_common [2019-10-02 23:39:04,145 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_rx [2019-10-02 23:39:04,146 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_unregister_common [2019-10-02 23:39:04,146 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2019-10-02 23:39:04,146 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware_nowait [2019-10-02 23:39:04,147 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2019-10-02 23:39:04,147 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2019-10-02 23:39:04,147 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-02 23:39:04,147 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2019-10-02 23:39:04,147 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2019-10-02 23:39:04,148 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2019-10-02 23:39:04,148 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2019-10-02 23:39:04,149 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2019-10-02 23:39:04,152 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-02 23:39:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2019-10-02 23:39:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_interrupt_msg [2019-10-02 23:39:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2019-10-02 23:39:04,160 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_lock_device_for_reset [2019-10-02 23:39:04,160 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-02 23:39:04,160 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_reset_device [2019-10-02 23:39:04,160 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2019-10-02 23:39:04,161 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2019-10-02 23:39:04,161 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-02 23:39:04,161 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-02 23:39:04,161 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-02 23:39:04,161 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-02 23:39:04,162 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-02 23:39:04,162 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2019-10-02 23:39:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 23:39:04,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-02 23:39:04,163 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-02 23:39:04,163 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-02 23:39:04,163 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2019-10-02 23:39:04,163 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-02 23:39:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2019-10-02 23:39:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2019-10-02 23:39:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-02 23:39:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-02 23:39:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-02 23:39:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-02 23:39:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-02 23:39:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2019-10-02 23:39:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-02 23:39:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2019-10-02 23:39:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 23:39:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 23:39:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 23:39:04,166 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2019-10-02 23:39:04,166 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2019-10-02 23:39:04,166 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-02 23:39:04,166 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-02 23:39:04,166 INFO L130 BoogieDeclarations]: Found specification of procedure device_lock [2019-10-02 23:39:04,166 INFO L130 BoogieDeclarations]: Found specification of procedure device_unlock [2019-10-02 23:39:04,167 INFO L130 BoogieDeclarations]: Found specification of procedure device_release_driver [2019-10-02 23:39:04,167 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-02 23:39:04,167 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-02 23:39:04,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_3 [2019-10-02 23:39:04,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_23 [2019-10-02 23:39:04,167 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-10-02 23:39:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev_22 [2019-10-02 23:39:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev_24 [2019-10-02 23:39:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_dev_21 [2019-10-02 23:39:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_dev_26 [2019-10-02 23:39:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure usb_lock_device_for_reset [2019-10-02 23:39:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure usb_reset_device [2019-10-02 23:39:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2019-10-02 23:39:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-02 23:39:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_30 [2019-10-02 23:39:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-02 23:39:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_31 [2019-10-02 23:39:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2019-10-02 23:39:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_5 [2019-10-02 23:39:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_4 [2019-10-02 23:39:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_9 [2019-10-02 23:39:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_13 [2019-10-02 23:39:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_14 [2019-10-02 23:39:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_7 [2019-10-02 23:39:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_8 [2019-10-02 23:39:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_12 [2019-10-02 23:39:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_19 [2019-10-02 23:39:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_20 [2019-10-02 23:39:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2019-10-02 23:39:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_6 [2019-10-02 23:39:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_11 [2019-10-02 23:39:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_17 [2019-10-02 23:39:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_18 [2019-10-02 23:39:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2019-10-02 23:39:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2019-10-02 23:39:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2019-10-02 23:39:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure usb_interrupt_msg [2019-10-02 23:39:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2019-10-02 23:39:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-02 23:39:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 23:39:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2019-10-02 23:39:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2019-10-02 23:39:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2019-10-02 23:39:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2019-10-02 23:39:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2019-10-02 23:39:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2019-10-02 23:39:04,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2019-10-02 23:39:04,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2019-10-02 23:39:04,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2019-10-02 23:39:04,177 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-02 23:39:04,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-02 23:39:04,177 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-02 23:39:04,177 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-02 23:39:04,178 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-02 23:39:04,178 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-02 23:39:04,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 23:39:04,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-02 23:39:04,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-02 23:39:04,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-02 23:39:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-02 23:39:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-02 23:39:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-02 23:39:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-02 23:39:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-02 23:39:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-02 23:39:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-02 23:39:04,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-02 23:39:04,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-02 23:39:04,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2019-10-02 23:39:04,180 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware_nowait [2019-10-02 23:39:04,180 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2019-10-02 23:39:04,180 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2019-10-02 23:39:04,181 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2019-10-02 23:39:04,181 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_head_init [2019-10-02 23:39:04,181 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2019-10-02 23:39:04,181 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2019-10-02 23:39:04,181 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2019-10-02 23:39:04,181 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2019-10-02 23:39:04,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-02 23:39:04,182 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2019-10-02 23:39:04,182 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-02 23:39:04,182 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2019-10-02 23:39:04,182 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2019-10-02 23:39:04,182 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2019-10-02 23:39:04,182 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2019-10-02 23:39:04,183 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2019-10-02 23:39:04,184 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_alloc_skb [2019-10-02 23:39:04,189 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2019-10-02 23:39:04,189 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2019-10-02 23:39:04,189 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2019-10-02 23:39:04,189 INFO L130 BoogieDeclarations]: Found specification of procedure set_wiphy_dev [2019-10-02 23:39:04,190 INFO L130 BoogieDeclarations]: Found specification of procedure SET_IEEE80211_DEV [2019-10-02 23:39:04,192 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_restart_hw [2019-10-02 23:39:04,193 INFO L130 BoogieDeclarations]: Found specification of procedure p54_rx [2019-10-02 23:39:04,193 INFO L130 BoogieDeclarations]: Found specification of procedure p54_free_skb [2019-10-02 23:39:04,193 INFO L130 BoogieDeclarations]: Found specification of procedure p54_parse_firmware [2019-10-02 23:39:04,193 INFO L130 BoogieDeclarations]: Found specification of procedure p54_read_eeprom [2019-10-02 23:39:04,193 INFO L130 BoogieDeclarations]: Found specification of procedure p54_init_common [2019-10-02 23:39:04,193 INFO L130 BoogieDeclarations]: Found specification of procedure p54_register_common [2019-10-02 23:39:04,193 INFO L130 BoogieDeclarations]: Found specification of procedure p54_free_common [2019-10-02 23:39:04,194 INFO L130 BoogieDeclarations]: Found specification of procedure p54_unregister_common [2019-10-02 23:39:04,194 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_rx_cb [2019-10-02 23:39:04,194 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_tx_cb [2019-10-02 23:39:04,194 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_tx_dummy_cb [2019-10-02 23:39:04,194 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_free_urbs [2019-10-02 23:39:04,194 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_stop [2019-10-02 23:39:04,194 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_init_urbs [2019-10-02 23:39:04,195 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_open [2019-10-02 23:39:04,195 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_lm87_chksum [2019-10-02 23:39:04,195 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_tx_lm87 [2019-10-02 23:39:04,195 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_tx_net2280 [2019-10-02 23:39:04,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-02 23:39:04,195 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_write [2019-10-02 23:39:04,195 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_read [2019-10-02 23:39:04,196 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_bulk_msg [2019-10-02 23:39:04,196 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_device_reset [2019-10-02 23:39:04,196 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_firmware_reset_3887 [2019-10-02 23:39:04,196 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_upload_firmware_3887 [2019-10-02 23:39:04,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2019-10-02 23:39:04,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-02 23:39:04,196 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_upload_firmware_net2280 [2019-10-02 23:39:04,197 INFO L130 BoogieDeclarations]: Found specification of procedure p54_find_type [2019-10-02 23:39:04,197 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_start_ops [2019-10-02 23:39:04,197 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-10-02 23:39:04,197 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_load_firmware_cb [2019-10-02 23:39:04,197 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_load_firmware [2019-10-02 23:39:04,197 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_probe [2019-10-02 23:39:04,197 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_disconnect [2019-10-02 23:39:04,198 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_pre_reset [2019-10-02 23:39:04,198 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_resume [2019-10-02 23:39:04,198 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_post_reset [2019-10-02 23:39:04,198 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_suspend [2019-10-02 23:39:04,198 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_driver_init [2019-10-02 23:39:04,198 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_driver_exit [2019-10-02 23:39:04,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-02 23:39:04,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-02 23:39:04,199 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 23:39:04,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2019-10-02 23:39:04,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2019-10-02 23:39:04,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2019-10-02 23:39:04,199 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-02 23:39:04,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2019-10-02 23:39:04,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2019-10-02 23:39:04,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2019-10-02 23:39:04,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2019-10-02 23:39:04,200 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-02 23:39:04,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-02 23:39:04,200 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-02 23:39:04,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 23:39:04,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-02 23:39:04,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-02 23:39:04,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 23:39:04,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-02 23:39:04,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-02 23:39:04,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-02 23:39:04,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-02 23:39:05,665 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-02 23:39:08,954 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2019-10-02 23:39:10,379 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 23:39:10,379 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-02 23:39:10,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:39:10 BoogieIcfgContainer [2019-10-02 23:39:10,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 23:39:10,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 23:39:10,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 23:39:10,388 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 23:39:10,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 11:39:00" (1/3) ... [2019-10-02 23:39:10,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d5f2cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 11:39:10, skipping insertion in model container [2019-10-02 23:39:10,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:39:03" (2/3) ... [2019-10-02 23:39:10,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d5f2cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 11:39:10, skipping insertion in model container [2019-10-02 23:39:10,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:39:10" (3/3) ... [2019-10-02 23:39:10,393 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2019-10-02 23:39:10,406 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 23:39:10,423 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 23:39:10,445 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 23:39:10,477 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 23:39:10,477 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-02 23:39:10,478 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 23:39:10,478 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 23:39:10,478 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 23:39:10,478 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 23:39:10,478 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 23:39:10,478 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 23:39:10,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1233 states. [2019-10-02 23:39:10,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-10-02 23:39:10,546 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:39:10,547 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 23:39:10,550 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:39:10,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:39:10,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1879226687, now seen corresponding path program 1 times [2019-10-02 23:39:10,561 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:39:10,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:10,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:39:10,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:10,713 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:39:11,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:39:11,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 23:39:11,469 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:39:11,470 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 23:39:11,470 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:39:11,478 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 23:39:11,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 23:39:11,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 23:39:11,500 INFO L87 Difference]: Start difference. First operand 1233 states. Second operand 3 states. [2019-10-02 23:39:12,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:39:12,029 INFO L93 Difference]: Finished difference Result 2039 states and 2679 transitions. [2019-10-02 23:39:12,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 23:39:12,036 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2019-10-02 23:39:12,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:39:12,080 INFO L225 Difference]: With dead ends: 2039 [2019-10-02 23:39:12,080 INFO L226 Difference]: Without dead ends: 2018 [2019-10-02 23:39:12,082 INFO L640 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 [2019-10-02 23:39:12,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2018 states. [2019-10-02 23:39:12,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2018 to 2018. [2019-10-02 23:39:12,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2018 states. [2019-10-02 23:39:12,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2018 states to 2018 states and 2648 transitions. [2019-10-02 23:39:12,393 INFO L78 Accepts]: Start accepts. Automaton has 2018 states and 2648 transitions. Word has length 44 [2019-10-02 23:39:12,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:39:12,393 INFO L475 AbstractCegarLoop]: Abstraction has 2018 states and 2648 transitions. [2019-10-02 23:39:12,394 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 23:39:12,395 INFO L276 IsEmpty]: Start isEmpty. Operand 2018 states and 2648 transitions. [2019-10-02 23:39:12,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-02 23:39:12,415 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:39:12,415 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-02 23:39:12,416 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:39:12,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:39:12,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1256112124, now seen corresponding path program 1 times [2019-10-02 23:39:12,417 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:39:12,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:12,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:39:12,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:12,440 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:39:12,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:39:12,752 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-02 23:39:12,753 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:39:12,756 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 23:39:12,756 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:39:12,762 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 23:39:12,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 23:39:12,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 23:39:12,763 INFO L87 Difference]: Start difference. First operand 2018 states and 2648 transitions. Second operand 3 states. [2019-10-02 23:39:12,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:39:12,969 INFO L93 Difference]: Finished difference Result 2031 states and 2663 transitions. [2019-10-02 23:39:12,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 23:39:12,970 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-10-02 23:39:12,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:39:12,989 INFO L225 Difference]: With dead ends: 2031 [2019-10-02 23:39:12,989 INFO L226 Difference]: Without dead ends: 2031 [2019-10-02 23:39:12,990 INFO L640 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 [2019-10-02 23:39:12,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2031 states. [2019-10-02 23:39:13,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2031 to 2018. [2019-10-02 23:39:13,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2018 states. [2019-10-02 23:39:13,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2018 states to 2018 states and 2647 transitions. [2019-10-02 23:39:13,109 INFO L78 Accepts]: Start accepts. Automaton has 2018 states and 2647 transitions. Word has length 60 [2019-10-02 23:39:13,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:39:13,110 INFO L475 AbstractCegarLoop]: Abstraction has 2018 states and 2647 transitions. [2019-10-02 23:39:13,110 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 23:39:13,110 INFO L276 IsEmpty]: Start isEmpty. Operand 2018 states and 2647 transitions. [2019-10-02 23:39:13,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-02 23:39:13,114 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:39:13,114 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-02 23:39:13,114 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:39:13,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:39:13,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1313370426, now seen corresponding path program 1 times [2019-10-02 23:39:13,115 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:39:13,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:13,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:39:13,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:13,131 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:39:13,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:39:13,710 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-02 23:39:13,710 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:39:13,711 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 23:39:13,711 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:39:13,711 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 23:39:13,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 23:39:13,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 23:39:13,712 INFO L87 Difference]: Start difference. First operand 2018 states and 2647 transitions. Second operand 3 states. [2019-10-02 23:39:13,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:39:13,880 INFO L93 Difference]: Finished difference Result 4008 states and 5304 transitions. [2019-10-02 23:39:13,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 23:39:13,881 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-10-02 23:39:13,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:39:13,919 INFO L225 Difference]: With dead ends: 4008 [2019-10-02 23:39:13,919 INFO L226 Difference]: Without dead ends: 4008 [2019-10-02 23:39:13,920 INFO L640 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 [2019-10-02 23:39:13,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4008 states. [2019-10-02 23:39:14,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4008 to 3998. [2019-10-02 23:39:14,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3998 states. [2019-10-02 23:39:14,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3998 states to 3998 states and 5292 transitions. [2019-10-02 23:39:14,126 INFO L78 Accepts]: Start accepts. Automaton has 3998 states and 5292 transitions. Word has length 60 [2019-10-02 23:39:14,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:39:14,130 INFO L475 AbstractCegarLoop]: Abstraction has 3998 states and 5292 transitions. [2019-10-02 23:39:14,130 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 23:39:14,130 INFO L276 IsEmpty]: Start isEmpty. Operand 3998 states and 5292 transitions. [2019-10-02 23:39:14,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-10-02 23:39:14,132 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:39:14,133 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-02 23:39:14,133 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:39:14,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:39:14,134 INFO L82 PathProgramCache]: Analyzing trace with hash 2059141691, now seen corresponding path program 1 times [2019-10-02 23:39:14,134 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:39:14,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:14,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:39:14,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:14,149 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:39:14,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:39:14,584 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-02 23:39:14,584 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:39:14,584 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 23:39:14,585 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:39:14,585 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 23:39:14,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 23:39:14,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 23:39:14,586 INFO L87 Difference]: Start difference. First operand 3998 states and 5292 transitions. Second operand 3 states. [2019-10-02 23:39:14,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:39:14,789 INFO L93 Difference]: Finished difference Result 7960 states and 10664 transitions. [2019-10-02 23:39:14,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 23:39:14,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2019-10-02 23:39:14,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:39:14,856 INFO L225 Difference]: With dead ends: 7960 [2019-10-02 23:39:14,860 INFO L226 Difference]: Without dead ends: 7960 [2019-10-02 23:39:14,861 INFO L640 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 [2019-10-02 23:39:14,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7960 states. [2019-10-02 23:39:15,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7960 to 7951. [2019-10-02 23:39:15,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7951 states. [2019-10-02 23:39:15,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7951 states to 7951 states and 10654 transitions. [2019-10-02 23:39:15,281 INFO L78 Accepts]: Start accepts. Automaton has 7951 states and 10654 transitions. Word has length 61 [2019-10-02 23:39:15,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:39:15,282 INFO L475 AbstractCegarLoop]: Abstraction has 7951 states and 10654 transitions. [2019-10-02 23:39:15,282 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 23:39:15,282 INFO L276 IsEmpty]: Start isEmpty. Operand 7951 states and 10654 transitions. [2019-10-02 23:39:15,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-10-02 23:39:15,289 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:39:15,289 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-02 23:39:15,290 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:39:15,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:39:15,290 INFO L82 PathProgramCache]: Analyzing trace with hash -591748003, now seen corresponding path program 1 times [2019-10-02 23:39:15,291 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:39:15,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:15,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:39:15,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:15,311 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:39:15,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:39:15,831 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-02 23:39:15,832 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:39:15,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 23:39:15,832 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:39:15,834 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 23:39:15,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 23:39:15,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 23:39:15,836 INFO L87 Difference]: Start difference. First operand 7951 states and 10654 transitions. Second operand 3 states. [2019-10-02 23:39:15,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:39:15,982 INFO L93 Difference]: Finished difference Result 7955 states and 10657 transitions. [2019-10-02 23:39:15,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 23:39:15,983 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2019-10-02 23:39:15,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:39:16,049 INFO L225 Difference]: With dead ends: 7955 [2019-10-02 23:39:16,050 INFO L226 Difference]: Without dead ends: 7955 [2019-10-02 23:39:16,050 INFO L640 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 [2019-10-02 23:39:16,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7955 states. [2019-10-02 23:39:16,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7955 to 7952. [2019-10-02 23:39:16,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7952 states. [2019-10-02 23:39:16,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7952 states to 7952 states and 10655 transitions. [2019-10-02 23:39:16,422 INFO L78 Accepts]: Start accepts. Automaton has 7952 states and 10655 transitions. Word has length 62 [2019-10-02 23:39:16,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:39:16,423 INFO L475 AbstractCegarLoop]: Abstraction has 7952 states and 10655 transitions. [2019-10-02 23:39:16,423 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 23:39:16,423 INFO L276 IsEmpty]: Start isEmpty. Operand 7952 states and 10655 transitions. [2019-10-02 23:39:16,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-10-02 23:39:16,427 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:39:16,427 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-02 23:39:16,428 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:39:16,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:39:16,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1164945026, now seen corresponding path program 1 times [2019-10-02 23:39:16,428 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:39:16,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:16,445 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:39:16,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:16,446 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:39:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:39:16,739 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-02 23:39:16,740 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:39:16,740 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 23:39:16,740 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:39:16,741 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 23:39:16,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 23:39:16,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 23:39:16,741 INFO L87 Difference]: Start difference. First operand 7952 states and 10655 transitions. Second operand 3 states. [2019-10-02 23:39:16,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:39:16,848 INFO L93 Difference]: Finished difference Result 7951 states and 10653 transitions. [2019-10-02 23:39:16,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 23:39:16,849 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2019-10-02 23:39:16,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:39:16,915 INFO L225 Difference]: With dead ends: 7951 [2019-10-02 23:39:16,915 INFO L226 Difference]: Without dead ends: 7951 [2019-10-02 23:39:16,916 INFO L640 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 [2019-10-02 23:39:16,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7951 states. [2019-10-02 23:39:17,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7951 to 7951. [2019-10-02 23:39:17,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7951 states. [2019-10-02 23:39:17,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7951 states to 7951 states and 10653 transitions. [2019-10-02 23:39:17,298 INFO L78 Accepts]: Start accepts. Automaton has 7951 states and 10653 transitions. Word has length 63 [2019-10-02 23:39:17,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:39:17,299 INFO L475 AbstractCegarLoop]: Abstraction has 7951 states and 10653 transitions. [2019-10-02 23:39:17,299 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 23:39:17,299 INFO L276 IsEmpty]: Start isEmpty. Operand 7951 states and 10653 transitions. [2019-10-02 23:39:17,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-10-02 23:39:17,302 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:39:17,302 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-02 23:39:17,302 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:39:17,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:39:17,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1754178688, now seen corresponding path program 1 times [2019-10-02 23:39:17,303 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:39:17,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:17,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:39:17,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:17,320 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:39:17,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:39:17,706 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-02 23:39:17,706 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:39:17,707 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 23:39:17,707 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:39:17,707 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 23:39:17,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 23:39:17,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 23:39:17,708 INFO L87 Difference]: Start difference. First operand 7951 states and 10653 transitions. Second operand 3 states. [2019-10-02 23:39:17,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:39:17,806 INFO L93 Difference]: Finished difference Result 7950 states and 10651 transitions. [2019-10-02 23:39:17,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 23:39:17,807 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2019-10-02 23:39:17,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:39:17,862 INFO L225 Difference]: With dead ends: 7950 [2019-10-02 23:39:17,862 INFO L226 Difference]: Without dead ends: 7931 [2019-10-02 23:39:17,863 INFO L640 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 [2019-10-02 23:39:17,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7931 states. [2019-10-02 23:39:18,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7931 to 7931. [2019-10-02 23:39:18,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7931 states. [2019-10-02 23:39:18,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7931 states to 7931 states and 10629 transitions. [2019-10-02 23:39:18,198 INFO L78 Accepts]: Start accepts. Automaton has 7931 states and 10629 transitions. Word has length 64 [2019-10-02 23:39:18,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:39:18,198 INFO L475 AbstractCegarLoop]: Abstraction has 7931 states and 10629 transitions. [2019-10-02 23:39:18,199 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 23:39:18,199 INFO L276 IsEmpty]: Start isEmpty. Operand 7931 states and 10629 transitions. [2019-10-02 23:39:18,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-10-02 23:39:18,214 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:39:18,214 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 23:39:18,214 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:39:18,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:39:18,215 INFO L82 PathProgramCache]: Analyzing trace with hash -789401680, now seen corresponding path program 1 times [2019-10-02 23:39:18,215 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:39:18,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:18,232 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:39:18,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:18,233 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:39:18,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:39:18,582 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-02 23:39:18,583 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:39:18,583 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 23:39:18,583 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:39:18,584 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 23:39:18,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 23:39:18,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 23:39:18,585 INFO L87 Difference]: Start difference. First operand 7931 states and 10629 transitions. Second operand 3 states. [2019-10-02 23:39:18,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:39:18,863 INFO L93 Difference]: Finished difference Result 8108 states and 10864 transitions. [2019-10-02 23:39:18,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 23:39:18,864 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2019-10-02 23:39:18,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:39:18,917 INFO L225 Difference]: With dead ends: 8108 [2019-10-02 23:39:18,918 INFO L226 Difference]: Without dead ends: 8108 [2019-10-02 23:39:18,919 INFO L640 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 [2019-10-02 23:39:18,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8108 states. [2019-10-02 23:39:19,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8108 to 8031. [2019-10-02 23:39:19,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8031 states. [2019-10-02 23:39:19,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8031 states to 8031 states and 10772 transitions. [2019-10-02 23:39:19,234 INFO L78 Accepts]: Start accepts. Automaton has 8031 states and 10772 transitions. Word has length 188 [2019-10-02 23:39:19,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:39:19,235 INFO L475 AbstractCegarLoop]: Abstraction has 8031 states and 10772 transitions. [2019-10-02 23:39:19,235 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 23:39:19,235 INFO L276 IsEmpty]: Start isEmpty. Operand 8031 states and 10772 transitions. [2019-10-02 23:39:19,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-02 23:39:19,248 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:39:19,249 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-02 23:39:19,249 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:39:19,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:39:19,250 INFO L82 PathProgramCache]: Analyzing trace with hash 997995072, now seen corresponding path program 1 times [2019-10-02 23:39:19,250 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:39:19,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:19,265 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:39:19,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:19,265 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:39:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:39:19,893 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-02 23:39:19,893 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:39:19,894 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 23:39:19,894 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:39:19,895 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 23:39:19,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 23:39:19,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 23:39:19,896 INFO L87 Difference]: Start difference. First operand 8031 states and 10772 transitions. Second operand 3 states. [2019-10-02 23:39:20,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:39:20,361 INFO L93 Difference]: Finished difference Result 8480 states and 11295 transitions. [2019-10-02 23:39:20,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 23:39:20,362 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2019-10-02 23:39:20,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:39:20,419 INFO L225 Difference]: With dead ends: 8480 [2019-10-02 23:39:20,419 INFO L226 Difference]: Without dead ends: 8480 [2019-10-02 23:39:20,419 INFO L640 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 [2019-10-02 23:39:20,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8480 states. [2019-10-02 23:39:20,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8480 to 8403. [2019-10-02 23:39:20,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8403 states. [2019-10-02 23:39:20,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8403 states to 8403 states and 11203 transitions. [2019-10-02 23:39:20,748 INFO L78 Accepts]: Start accepts. Automaton has 8403 states and 11203 transitions. Word has length 204 [2019-10-02 23:39:20,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:39:20,749 INFO L475 AbstractCegarLoop]: Abstraction has 8403 states and 11203 transitions. [2019-10-02 23:39:20,749 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 23:39:20,749 INFO L276 IsEmpty]: Start isEmpty. Operand 8403 states and 11203 transitions. [2019-10-02 23:39:20,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2019-10-02 23:39:20,767 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:39:20,768 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 23:39:20,768 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:39:20,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:39:20,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1391506302, now seen corresponding path program 1 times [2019-10-02 23:39:20,769 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:39:20,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:20,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:39:20,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:20,785 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:39:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:39:21,149 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-02 23:39:21,150 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:39:21,150 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 23:39:21,151 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:39:21,151 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 23:39:21,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 23:39:21,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 23:39:21,152 INFO L87 Difference]: Start difference. First operand 8403 states and 11203 transitions. Second operand 3 states. [2019-10-02 23:39:21,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:39:21,259 INFO L93 Difference]: Finished difference Result 8451 states and 11259 transitions. [2019-10-02 23:39:21,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 23:39:21,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 237 [2019-10-02 23:39:21,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:39:21,306 INFO L225 Difference]: With dead ends: 8451 [2019-10-02 23:39:21,306 INFO L226 Difference]: Without dead ends: 8451 [2019-10-02 23:39:21,307 INFO L640 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 [2019-10-02 23:39:21,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8451 states. [2019-10-02 23:39:21,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8451 to 8435. [2019-10-02 23:39:21,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8435 states. [2019-10-02 23:39:21,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8435 states to 8435 states and 11243 transitions. [2019-10-02 23:39:21,728 INFO L78 Accepts]: Start accepts. Automaton has 8435 states and 11243 transitions. Word has length 237 [2019-10-02 23:39:21,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:39:21,729 INFO L475 AbstractCegarLoop]: Abstraction has 8435 states and 11243 transitions. [2019-10-02 23:39:21,729 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 23:39:21,730 INFO L276 IsEmpty]: Start isEmpty. Operand 8435 states and 11243 transitions. [2019-10-02 23:39:21,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-10-02 23:39:21,744 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:39:21,744 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 23:39:21,745 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:39:21,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:39:21,746 INFO L82 PathProgramCache]: Analyzing trace with hash -643988541, now seen corresponding path program 1 times [2019-10-02 23:39:21,746 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:39:21,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:21,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:39:21,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:21,758 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:39:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:39:22,231 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-02 23:39:22,231 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:39:22,232 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-02 23:39:22,232 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:39:22,233 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-02 23:39:22,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-02 23:39:22,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-02 23:39:22,234 INFO L87 Difference]: Start difference. First operand 8435 states and 11243 transitions. Second operand 6 states. [2019-10-02 23:39:22,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:39:22,451 INFO L93 Difference]: Finished difference Result 8531 states and 11371 transitions. [2019-10-02 23:39:22,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-02 23:39:22,452 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 239 [2019-10-02 23:39:22,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:39:22,502 INFO L225 Difference]: With dead ends: 8531 [2019-10-02 23:39:22,503 INFO L226 Difference]: Without dead ends: 8531 [2019-10-02 23:39:22,504 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-02 23:39:22,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8531 states. [2019-10-02 23:39:22,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8531 to 8467. [2019-10-02 23:39:22,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8467 states. [2019-10-02 23:39:22,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8467 states to 8467 states and 11275 transitions. [2019-10-02 23:39:22,851 INFO L78 Accepts]: Start accepts. Automaton has 8467 states and 11275 transitions. Word has length 239 [2019-10-02 23:39:22,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:39:22,855 INFO L475 AbstractCegarLoop]: Abstraction has 8467 states and 11275 transitions. [2019-10-02 23:39:22,855 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-02 23:39:22,855 INFO L276 IsEmpty]: Start isEmpty. Operand 8467 states and 11275 transitions. [2019-10-02 23:39:22,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-10-02 23:39:22,871 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:39:22,871 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 23:39:22,872 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:39:22,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:39:22,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1858071932, now seen corresponding path program 1 times [2019-10-02 23:39:22,873 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:39:22,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:22,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:39:22,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:22,895 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:39:23,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:39:23,368 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-02 23:39:23,369 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:39:23,369 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-02 23:39:23,369 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:39:23,370 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-02 23:39:23,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-02 23:39:23,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-02 23:39:23,373 INFO L87 Difference]: Start difference. First operand 8467 states and 11275 transitions. Second operand 5 states. [2019-10-02 23:39:23,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:39:23,516 INFO L93 Difference]: Finished difference Result 8491 states and 11291 transitions. [2019-10-02 23:39:23,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-02 23:39:23,517 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 240 [2019-10-02 23:39:23,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:39:23,576 INFO L225 Difference]: With dead ends: 8491 [2019-10-02 23:39:23,577 INFO L226 Difference]: Without dead ends: 8491 [2019-10-02 23:39:23,577 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-02 23:39:23,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8491 states. [2019-10-02 23:39:23,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8491 to 8475. [2019-10-02 23:39:23,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8475 states. [2019-10-02 23:39:23,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8475 states to 8475 states and 11275 transitions. [2019-10-02 23:39:23,948 INFO L78 Accepts]: Start accepts. Automaton has 8475 states and 11275 transitions. Word has length 240 [2019-10-02 23:39:23,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:39:23,949 INFO L475 AbstractCegarLoop]: Abstraction has 8475 states and 11275 transitions. [2019-10-02 23:39:23,950 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-02 23:39:23,950 INFO L276 IsEmpty]: Start isEmpty. Operand 8475 states and 11275 transitions. [2019-10-02 23:39:23,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-10-02 23:39:23,968 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:39:23,969 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 23:39:23,969 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:39:23,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:39:23,970 INFO L82 PathProgramCache]: Analyzing trace with hash 486595109, now seen corresponding path program 1 times [2019-10-02 23:39:23,970 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:39:23,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:23,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:39:23,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:23,997 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:39:24,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:39:24,704 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-02 23:39:24,704 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:39:24,705 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-02 23:39:24,705 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:39:24,707 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-02 23:39:24,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-02 23:39:24,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-02 23:39:24,709 INFO L87 Difference]: Start difference. First operand 8475 states and 11275 transitions. Second operand 10 states. [2019-10-02 23:39:25,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:39:25,404 INFO L93 Difference]: Finished difference Result 10655 states and 13810 transitions. [2019-10-02 23:39:25,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-02 23:39:25,405 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2019-10-02 23:39:25,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:39:25,460 INFO L225 Difference]: With dead ends: 10655 [2019-10-02 23:39:25,460 INFO L226 Difference]: Without dead ends: 10655 [2019-10-02 23:39:25,461 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2019-10-02 23:39:25,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10655 states. [2019-10-02 23:39:25,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10655 to 8563. [2019-10-02 23:39:25,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8563 states. [2019-10-02 23:39:25,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8563 states to 8563 states and 11367 transitions. [2019-10-02 23:39:25,781 INFO L78 Accepts]: Start accepts. Automaton has 8563 states and 11367 transitions. Word has length 240 [2019-10-02 23:39:25,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:39:25,782 INFO L475 AbstractCegarLoop]: Abstraction has 8563 states and 11367 transitions. [2019-10-02 23:39:25,782 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-02 23:39:25,782 INFO L276 IsEmpty]: Start isEmpty. Operand 8563 states and 11367 transitions. [2019-10-02 23:39:25,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-10-02 23:39:25,797 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:39:25,798 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 23:39:25,798 INFO L418 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:39:25,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:39:25,799 INFO L82 PathProgramCache]: Analyzing trace with hash 627143719, now seen corresponding path program 1 times [2019-10-02 23:39:25,799 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:39:25,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:25,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:39:25,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:25,811 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:39:26,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:39:26,287 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-02 23:39:26,287 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:39:26,288 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-02 23:39:26,288 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:39:26,289 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-02 23:39:26,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-02 23:39:26,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-02 23:39:26,291 INFO L87 Difference]: Start difference. First operand 8563 states and 11367 transitions. Second operand 4 states. [2019-10-02 23:39:26,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:39:26,439 INFO L93 Difference]: Finished difference Result 8566 states and 11370 transitions. [2019-10-02 23:39:26,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-02 23:39:26,440 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 240 [2019-10-02 23:39:26,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:39:26,482 INFO L225 Difference]: With dead ends: 8566 [2019-10-02 23:39:26,483 INFO L226 Difference]: Without dead ends: 8564 [2019-10-02 23:39:26,486 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-02 23:39:26,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8564 states. [2019-10-02 23:39:26,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8564 to 8564. [2019-10-02 23:39:26,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8564 states. [2019-10-02 23:39:26,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8564 states to 8564 states and 11368 transitions. [2019-10-02 23:39:26,754 INFO L78 Accepts]: Start accepts. Automaton has 8564 states and 11368 transitions. Word has length 240 [2019-10-02 23:39:26,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:39:26,754 INFO L475 AbstractCegarLoop]: Abstraction has 8564 states and 11368 transitions. [2019-10-02 23:39:26,754 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-02 23:39:26,755 INFO L276 IsEmpty]: Start isEmpty. Operand 8564 states and 11368 transitions. [2019-10-02 23:39:26,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-10-02 23:39:26,770 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:39:26,771 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 23:39:26,771 INFO L418 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:39:26,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:39:26,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1367446489, now seen corresponding path program 1 times [2019-10-02 23:39:26,772 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:39:26,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:26,784 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:39:26,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:39:26,784 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:39:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:39:27,428 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-02 23:39:27,428 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 23:39:27,429 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-02 23:39:27,430 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 242 with the following transitions: [2019-10-02 23:39:27,436 INFO L207 CegarAbsIntRunner]: [2], [3], [53], [54], [55], [64], [65], [70], [72], [75], [76], [85], [87], [88], [89], [90], [329], [331], [358], [360], [362], [363], [899], [901], [902], [937], [941], [943], [944], [1001], [1003], [1004], [1005], [1006], [1013], [1032], [1034], [1035], [1128], [1132], [1134], [1135], [1299], [1300], [1347], [1348], [1448], [1450], [1451], [1456], [1457], [1458], [1460], [1463], [1465], [1468], [1471], [1474], [1477], [1479], [1484], [1582], [1585], [1588], [1591], [1594], [1596], [1600], [1603], [1606], [1608], [1611], [1619], [1652], [1653], [1661], [1662], [1680], [1682], [1683], [1685], [1780], [1782], [1785], [1788], [1801], [1806], [1808], [1813], [1817], [1819], [1823], [1825], [1826], [1828], [1829], [1830], [1831], [1842], [1843], [1886], [1889], [1891], [1894], [1906], [1907], [1926], [1928], [1930], [1934], [1937], [1941], [2008], [2013], [2020], [2023], [2024], [2067], [2068], [2112], [2114], [2115], [2120], [2129], [2156], [2159], [2163], [2169], [2171], [2174], [2179], [2180], [2203], [2204], [2205], [2206], [2207], [2208], [2209], [2210], [2255], [2256], [2263], [2264], [2265], [2266], [2399], [2400], [2413], [2414], [2415], [2416], [2417], [2418], [2419], [2420], [2441], [2442], [2449], [2450], [2633], [2634], [2637], [2638], [2639], [2640], [2641], [2642], [2643], [2644], [2657], [2658], [2659], [2660], [2665], [2671], [2672], [2673], [2674], [2707], [2708], [2709], [2710], [2711], [2712], [2719], [2720], [2735], [2736], [2743], [2744], [2745], [2746], [2747], [2748], [2749], [2750], [2751], [2752], [2753], [2754], [2755], [2756], [2759], [2760], [2785], [2786], [2789], [2799], [2800], [2801], [2803], [2804] [2019-10-02 23:39:27,545 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-02 23:39:27,546 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-02 23:39:27,702 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-02 23:39:27,704 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 119 root evaluator evaluations with a maximum evaluation depth of 0. Performed 119 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 252 variables. [2019-10-02 23:39:27,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:39:27,712 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-02 23:39:27,869 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-02 23:39:27,870 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-02 23:39:27,884 INFO L420 sIntCurrentIteration]: We unified 240 AI predicates to 240 [2019-10-02 23:39:27,884 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-02 23:39:27,885 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 23:39:27,886 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 4 [2019-10-02 23:39:27,886 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:39:27,887 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 23:39:27,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 23:39:27,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 23:39:27,888 INFO L87 Difference]: Start difference. First operand 8564 states and 11368 transitions. Second operand 2 states. [2019-10-02 23:39:27,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:39:27,889 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-02 23:39:27,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 23:39:27,889 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 241 [2019-10-02 23:39:27,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:39:27,890 INFO L225 Difference]: With dead ends: 2 [2019-10-02 23:39:27,890 INFO L226 Difference]: Without dead ends: 0 [2019-10-02 23:39:27,893 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 23:39:27,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-02 23:39:27,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-02 23:39:27,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-02 23:39:27,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-02 23:39:27,894 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 241 [2019-10-02 23:39:27,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:39:27,895 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-02 23:39:27,895 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 23:39:27,895 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-02 23:39:27,895 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-02 23:39:27,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 11:39:27 BoogieIcfgContainer [2019-10-02 23:39:27,904 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 23:39:27,908 INFO L168 Benchmark]: Toolchain (without parser) took 27662.93 ms. Allocated memory was 138.4 MB in the beginning and 964.7 MB in the end (delta: 826.3 MB). Free memory was 73.7 MB in the beginning and 713.7 MB in the end (delta: -640.0 MB). Peak memory consumption was 186.3 MB. Max. memory is 7.1 GB. [2019-10-02 23:39:27,910 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 138.4 MB. Free memory was 103.2 MB in the beginning and 103.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-02 23:39:27,913 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3364.92 ms. Allocated memory was 138.4 MB in the beginning and 271.6 MB in the end (delta: 133.2 MB). Free memory was 73.5 MB in the beginning and 189.8 MB in the end (delta: -116.3 MB). Peak memory consumption was 109.7 MB. Max. memory is 7.1 GB. [2019-10-02 23:39:27,920 INFO L168 Benchmark]: Boogie Preprocessor took 391.92 ms. Allocated memory is still 271.6 MB. Free memory was 189.8 MB in the beginning and 168.1 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2019-10-02 23:39:27,921 INFO L168 Benchmark]: RCFGBuilder took 6376.75 ms. Allocated memory was 271.6 MB in the beginning and 375.4 MB in the end (delta: 103.8 MB). Free memory was 168.1 MB in the beginning and 294.8 MB in the end (delta: -126.7 MB). Peak memory consumption was 223.8 MB. Max. memory is 7.1 GB. [2019-10-02 23:39:27,923 INFO L168 Benchmark]: TraceAbstraction took 17520.37 ms. Allocated memory was 375.4 MB in the beginning and 964.7 MB in the end (delta: 589.3 MB). Free memory was 290.5 MB in the beginning and 713.7 MB in the end (delta: -423.2 MB). Peak memory consumption was 166.1 MB. Max. memory is 7.1 GB. [2019-10-02 23:39:27,937 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 138.4 MB. Free memory was 103.2 MB in the beginning and 103.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3364.92 ms. Allocated memory was 138.4 MB in the beginning and 271.6 MB in the end (delta: 133.2 MB). Free memory was 73.5 MB in the beginning and 189.8 MB in the end (delta: -116.3 MB). Peak memory consumption was 109.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 391.92 ms. Allocated memory is still 271.6 MB. Free memory was 189.8 MB in the beginning and 168.1 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6376.75 ms. Allocated memory was 271.6 MB in the beginning and 375.4 MB in the end (delta: 103.8 MB). Free memory was 168.1 MB in the beginning and 294.8 MB in the end (delta: -126.7 MB). Peak memory consumption was 223.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17520.37 ms. Allocated memory was 375.4 MB in the beginning and 964.7 MB in the end (delta: 589.3 MB). Free memory was 290.5 MB in the beginning and 713.7 MB in the end (delta: -423.2 MB). Peak memory consumption was 166.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6288]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 154 procedures, 1281 locations, 1 error locations. SAFE Result, 17.4s OverallTime, 15 OverallIterations, 3 TraceHistogramMax, 4.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 20801 SDtfs, 10108 SDslu, 32920 SDs, 0 SdLazy, 271 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 309 GetRequests, 271 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8564occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.2291666666666665 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 4.4s AutomataMinimizationTime, 15 MinimizatonAttempts, 2377 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.5s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 2243 NumberOfCodeBlocks, 2243 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2228 ConstructedInterpolants, 0 QuantifiedInterpolants, 496546 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 14 PerfectInterpolantSequences, 275/276 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...