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-fea9116 [2019-09-20 13:43:40,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:43:40,087 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:43:40,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:43:40,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:43:40,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:43:40,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:43:40,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:43:40,104 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:43:40,105 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:43:40,106 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:43:40,107 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:43:40,108 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:43:40,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:43:40,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:43:40,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:43:40,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:43:40,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:43:40,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:43:40,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:43:40,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:43:40,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:43:40,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:43:40,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:43:40,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:43:40,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:43:40,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:43:40,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:43:40,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:43:40,124 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:43:40,124 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:43:40,125 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:43:40,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:43:40,127 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:43:40,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:43:40,128 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:43:40,128 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:43:40,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:43:40,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:43:40,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:43:40,130 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:43:40,131 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:43:40,145 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:43:40,146 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:43:40,146 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:43:40,146 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:43:40,147 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:43:40,147 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:43:40,147 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:43:40,148 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:43:40,148 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:43:40,148 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:43:40,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:43:40,149 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:43:40,149 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:43:40,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:43:40,149 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:43:40,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:43:40,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:43:40,150 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:43:40,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:43:40,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:43:40,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:43:40,151 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:43:40,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:43:40,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:43:40,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:43:40,152 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:43:40,152 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:43:40,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:43:40,152 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:43:40,152 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:43:40,183 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:43:40,196 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:43:40,199 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:43:40,200 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:43:40,201 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:43:40,201 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2019-09-20 13:43:40,261 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba39ca92b/5736e38de711498c9f2f86442a3f6b2f/FLAG215beb745 [2019-09-20 13:43:41,028 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:43:41,028 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2019-09-20 13:43:41,069 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba39ca92b/5736e38de711498c9f2f86442a3f6b2f/FLAG215beb745 [2019-09-20 13:43:41,098 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba39ca92b/5736e38de711498c9f2f86442a3f6b2f [2019-09-20 13:43:41,107 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:43:41,109 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:43:41,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:43:41,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:43:41,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:43:41,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:43:41" (1/1) ... [2019-09-20 13:43:41,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64153bf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:41, skipping insertion in model container [2019-09-20 13:43:41,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:43:41" (1/1) ... [2019-09-20 13:43:41,125 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:43:41,257 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:43:43,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:43:43,290 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:43:43,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:43:43,913 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:43:43,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:43 WrapperNode [2019-09-20 13:43:43,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:43:43,914 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:43:43,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:43:43,915 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:43:43,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:43" (1/1) ... [2019-09-20 13:43:43,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:43" (1/1) ... [2019-09-20 13:43:44,008 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:43" (1/1) ... [2019-09-20 13:43:44,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:43" (1/1) ... [2019-09-20 13:43:44,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:43" (1/1) ... [2019-09-20 13:43:44,191 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:43" (1/1) ... [2019-09-20 13:43:44,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:43" (1/1) ... [2019-09-20 13:43:44,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:43:44,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:43:44,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:43:44,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:43:44,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:43:44,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:43:44,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:43:44,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-09-20 13:43:44,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-09-20 13:43:44,347 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-09-20 13:43:44,347 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-09-20 13:43:44,347 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2019-09-20 13:43:44,347 INFO L138 BoogieDeclarations]: Found implementation of procedure device_lock [2019-09-20 13:43:44,348 INFO L138 BoogieDeclarations]: Found implementation of procedure device_unlock [2019-09-20 13:43:44,348 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2019-09-20 13:43:44,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-09-20 13:43:44,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-09-20 13:43:44,349 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-09-20 13:43:44,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-20 13:43:44,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-09-20 13:43:44,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-09-20 13:43:44,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-20 13:43:44,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-09-20 13:43:44,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-20 13:43:44,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-20 13:43:44,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-20 13:43:44,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-09-20 13:43:44,354 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2019-09-20 13:43:44,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_head_init [2019-09-20 13:43:44,355 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2019-09-20 13:43:44,355 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2019-09-20 13:43:44,355 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2019-09-20 13:43:44,355 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2019-09-20 13:43:44,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_alloc_skb [2019-09-20 13:43:44,356 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2019-09-20 13:43:44,356 INFO L138 BoogieDeclarations]: Found implementation of procedure set_wiphy_dev [2019-09-20 13:43:44,356 INFO L138 BoogieDeclarations]: Found implementation of procedure SET_IEEE80211_DEV [2019-09-20 13:43:44,356 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_rx_cb [2019-09-20 13:43:44,356 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_tx_cb [2019-09-20 13:43:44,357 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_tx_dummy_cb [2019-09-20 13:43:44,357 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_free_urbs [2019-09-20 13:43:44,357 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_stop [2019-09-20 13:43:44,357 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_init_urbs [2019-09-20 13:43:44,358 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_open [2019-09-20 13:43:44,358 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_lm87_chksum [2019-09-20 13:43:44,358 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_tx_lm87 [2019-09-20 13:43:44,358 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_tx_net2280 [2019-09-20 13:43:44,359 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_write [2019-09-20 13:43:44,359 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_read [2019-09-20 13:43:44,359 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_bulk_msg [2019-09-20 13:43:44,359 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_device_reset [2019-09-20 13:43:44,359 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_firmware_reset_3887 [2019-09-20 13:43:44,360 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_upload_firmware_3887 [2019-09-20 13:43:44,360 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_upload_firmware_net2280 [2019-09-20 13:43:44,360 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_find_type [2019-09-20 13:43:44,360 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_start_ops [2019-09-20 13:43:44,360 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_load_firmware_cb [2019-09-20 13:43:44,361 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_load_firmware [2019-09-20 13:43:44,361 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_probe [2019-09-20 13:43:44,361 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_disconnect [2019-09-20 13:43:44,361 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_pre_reset [2019-09-20 13:43:44,361 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_resume [2019-09-20 13:43:44,361 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_post_reset [2019-09-20 13:43:44,362 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_suspend [2019-09-20 13:43:44,362 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_driver_init [2019-09-20 13:43:44,362 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_driver_exit [2019-09-20 13:43:44,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2019-09-20 13:43:44,362 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:43:44,362 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-09-20 13:43:44,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2019-09-20 13:43:44,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_3 [2019-09-20 13:43:44,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_4 [2019-09-20 13:43:44,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_5 [2019-09-20 13:43:44,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_6 [2019-09-20 13:43:44,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_7 [2019-09-20 13:43:44,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_8 [2019-09-20 13:43:44,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_9 [2019-09-20 13:43:44,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_11 [2019-09-20 13:43:44,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_12 [2019-09-20 13:43:44,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_13 [2019-09-20 13:43:44,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_14 [2019-09-20 13:43:44,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_17 [2019-09-20 13:43:44,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_18 [2019-09-20 13:43:44,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_19 [2019-09-20 13:43:44,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_20 [2019-09-20 13:43:44,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_dev_21 [2019-09-20 13:43:44,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev_22 [2019-09-20 13:43:44,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_23 [2019-09-20 13:43:44,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev_24 [2019-09-20 13:43:44,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_dev_26 [2019-09-20 13:43:44,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_30 [2019-09-20 13:43:44,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_31 [2019-09-20 13:43:44,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2019-09-20 13:43:44,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2019-09-20 13:43:44,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2019-09-20 13:43:44,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2019-09-20 13:43:44,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2019-09-20 13:43:44,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2019-09-20 13:43:44,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2019-09-20 13:43:44,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2019-09-20 13:43:44,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2019-09-20 13:43:44,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2019-09-20 13:43:44,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2019-09-20 13:43:44,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2019-09-20 13:43:44,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2019-09-20 13:43:44,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2019-09-20 13:43:44,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2019-09-20 13:43:44,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2019-09-20 13:43:44,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-20 13:43:44,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-09-20 13:43:44,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-09-20 13:43:44,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2019-09-20 13:43:44,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-09-20 13:43:44,371 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-09-20 13:43:44,372 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2019-09-20 13:43:44,372 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2019-09-20 13:43:44,372 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-09-20 13:43:44,372 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2019-09-20 13:43:44,372 INFO L138 BoogieDeclarations]: Found implementation of procedure device_release_driver [2019-09-20 13:43:44,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_restart_hw [2019-09-20 13:43:44,373 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2019-09-20 13:43:44,373 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2019-09-20 13:43:44,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-20 13:43:44,374 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2019-09-20 13:43:44,374 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-09-20 13:43:44,374 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-09-20 13:43:44,374 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_free_common [2019-09-20 13:43:44,375 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_free_skb [2019-09-20 13:43:44,376 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_init_common [2019-09-20 13:43:44,376 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_parse_firmware [2019-09-20 13:43:44,376 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_read_eeprom [2019-09-20 13:43:44,376 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_register_common [2019-09-20 13:43:44,376 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_rx [2019-09-20 13:43:44,377 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_unregister_common [2019-09-20 13:43:44,377 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2019-09-20 13:43:44,377 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware_nowait [2019-09-20 13:43:44,377 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2019-09-20 13:43:44,377 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2019-09-20 13:43:44,378 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-09-20 13:43:44,378 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2019-09-20 13:43:44,378 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2019-09-20 13:43:44,378 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2019-09-20 13:43:44,378 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2019-09-20 13:43:44,379 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2019-09-20 13:43:44,382 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-09-20 13:43:44,383 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2019-09-20 13:43:44,383 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_interrupt_msg [2019-09-20 13:43:44,383 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2019-09-20 13:43:44,389 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_lock_device_for_reset [2019-09-20 13:43:44,389 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-09-20 13:43:44,389 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_reset_device [2019-09-20 13:43:44,389 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2019-09-20 13:43:44,390 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2019-09-20 13:43:44,390 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-20 13:43:44,390 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-20 13:43:44,391 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-20 13:43:44,391 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-09-20 13:43:44,392 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-09-20 13:43:44,392 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2019-09-20 13:43:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:43:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-20 13:43:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-09-20 13:43:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-20 13:43:44,392 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2019-09-20 13:43:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-09-20 13:43:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2019-09-20 13:43:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2019-09-20 13:43:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-09-20 13:43:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-09-20 13:43:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:43:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-09-20 13:43:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-09-20 13:43:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2019-09-20 13:43:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-09-20 13:43:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2019-09-20 13:43:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:43:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:43:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:43:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2019-09-20 13:43:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2019-09-20 13:43:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-09-20 13:43:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-09-20 13:43:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure device_lock [2019-09-20 13:43:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure device_unlock [2019-09-20 13:43:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure device_release_driver [2019-09-20 13:43:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-09-20 13:43:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-09-20 13:43:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_3 [2019-09-20 13:43:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_23 [2019-09-20 13:43:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-09-20 13:43:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev_22 [2019-09-20 13:43:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev_24 [2019-09-20 13:43:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_dev_21 [2019-09-20 13:43:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_dev_26 [2019-09-20 13:43:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure usb_lock_device_for_reset [2019-09-20 13:43:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure usb_reset_device [2019-09-20 13:43:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2019-09-20 13:43:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-09-20 13:43:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_30 [2019-09-20 13:43:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-09-20 13:43:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_31 [2019-09-20 13:43:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2019-09-20 13:43:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_5 [2019-09-20 13:43:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_4 [2019-09-20 13:43:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_9 [2019-09-20 13:43:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_13 [2019-09-20 13:43:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_14 [2019-09-20 13:43:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_7 [2019-09-20 13:43:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_8 [2019-09-20 13:43:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_12 [2019-09-20 13:43:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_19 [2019-09-20 13:43:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_20 [2019-09-20 13:43:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2019-09-20 13:43:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_6 [2019-09-20 13:43:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_11 [2019-09-20 13:43:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_17 [2019-09-20 13:43:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_18 [2019-09-20 13:43:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2019-09-20 13:43:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2019-09-20 13:43:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2019-09-20 13:43:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure usb_interrupt_msg [2019-09-20 13:43:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2019-09-20 13:43:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-09-20 13:43:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:43:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2019-09-20 13:43:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2019-09-20 13:43:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2019-09-20 13:43:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2019-09-20 13:43:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2019-09-20 13:43:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2019-09-20 13:43:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2019-09-20 13:43:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2019-09-20 13:43:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2019-09-20 13:43:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-20 13:43:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-20 13:43:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-09-20 13:43:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-09-20 13:43:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:43:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-20 13:43:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:43:44,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-20 13:43:44,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-20 13:43:44,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 13:43:44,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:43:44,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-09-20 13:43:44,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-09-20 13:43:44,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-09-20 13:43:44,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-20 13:43:44,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-09-20 13:43:44,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-20 13:43:44,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-20 13:43:44,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-09-20 13:43:44,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2019-09-20 13:43:44,404 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware_nowait [2019-09-20 13:43:44,404 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2019-09-20 13:43:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2019-09-20 13:43:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2019-09-20 13:43:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_head_init [2019-09-20 13:43:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2019-09-20 13:43:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2019-09-20 13:43:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2019-09-20 13:43:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2019-09-20 13:43:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:43:44,406 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2019-09-20 13:43:44,406 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-09-20 13:43:44,406 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2019-09-20 13:43:44,406 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2019-09-20 13:43:44,406 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2019-09-20 13:43:44,406 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2019-09-20 13:43:44,406 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2019-09-20 13:43:44,407 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_alloc_skb [2019-09-20 13:43:44,411 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2019-09-20 13:43:44,411 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2019-09-20 13:43:44,411 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2019-09-20 13:43:44,411 INFO L130 BoogieDeclarations]: Found specification of procedure set_wiphy_dev [2019-09-20 13:43:44,412 INFO L130 BoogieDeclarations]: Found specification of procedure SET_IEEE80211_DEV [2019-09-20 13:43:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_restart_hw [2019-09-20 13:43:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure p54_rx [2019-09-20 13:43:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure p54_free_skb [2019-09-20 13:43:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure p54_parse_firmware [2019-09-20 13:43:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure p54_read_eeprom [2019-09-20 13:43:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure p54_init_common [2019-09-20 13:43:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure p54_register_common [2019-09-20 13:43:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure p54_free_common [2019-09-20 13:43:44,415 INFO L130 BoogieDeclarations]: Found specification of procedure p54_unregister_common [2019-09-20 13:43:44,415 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_rx_cb [2019-09-20 13:43:44,415 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_tx_cb [2019-09-20 13:43:44,415 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_tx_dummy_cb [2019-09-20 13:43:44,415 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_free_urbs [2019-09-20 13:43:44,415 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_stop [2019-09-20 13:43:44,415 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_init_urbs [2019-09-20 13:43:44,415 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_open [2019-09-20 13:43:44,415 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_lm87_chksum [2019-09-20 13:43:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_tx_lm87 [2019-09-20 13:43:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_tx_net2280 [2019-09-20 13:43:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-20 13:43:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_write [2019-09-20 13:43:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_read [2019-09-20 13:43:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_bulk_msg [2019-09-20 13:43:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_device_reset [2019-09-20 13:43:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_firmware_reset_3887 [2019-09-20 13:43:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_upload_firmware_3887 [2019-09-20 13:43:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2019-09-20 13:43:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-09-20 13:43:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_upload_firmware_net2280 [2019-09-20 13:43:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure p54_find_type [2019-09-20 13:43:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_start_ops [2019-09-20 13:43:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-09-20 13:43:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_load_firmware_cb [2019-09-20 13:43:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_load_firmware [2019-09-20 13:43:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_probe [2019-09-20 13:43:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_disconnect [2019-09-20 13:43:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_pre_reset [2019-09-20 13:43:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_resume [2019-09-20 13:43:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_post_reset [2019-09-20 13:43:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_suspend [2019-09-20 13:43:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_driver_init [2019-09-20 13:43:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_driver_exit [2019-09-20 13:43:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-20 13:43:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-20 13:43:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:43:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2019-09-20 13:43:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2019-09-20 13:43:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2019-09-20 13:43:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-09-20 13:43:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2019-09-20 13:43:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2019-09-20 13:43:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2019-09-20 13:43:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2019-09-20 13:43:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-20 13:43:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-20 13:43:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:43:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:43:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:43:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-20 13:43:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:43:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-09-20 13:43:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-09-20 13:43:44,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-09-20 13:43:44,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-09-20 13:43:45,456 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-20 13:43:47,626 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2019-09-20 13:43:48,500 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:43:48,500 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 13:43:48,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:43:48 BoogieIcfgContainer [2019-09-20 13:43:48,503 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:43:48,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:43:48,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:43:48,507 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:43:48,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:43:41" (1/3) ... [2019-09-20 13:43:48,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa55682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:43:48, skipping insertion in model container [2019-09-20 13:43:48,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:43:43" (2/3) ... [2019-09-20 13:43:48,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa55682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:43:48, skipping insertion in model container [2019-09-20 13:43:48,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:43:48" (3/3) ... [2019-09-20 13:43:48,513 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2019-09-20 13:43:48,523 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:43:48,533 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:43:48,550 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:43:48,579 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:43:48,579 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:43:48,579 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:43:48,579 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:43:48,579 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:43:48,579 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:43:48,579 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:43:48,580 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:43:48,626 INFO L276 IsEmpty]: Start isEmpty. Operand 1233 states. [2019-09-20 13:43:48,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-09-20 13:43:48,640 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:43:48,641 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:43:48,643 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:43:48,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:43:48,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1879226687, now seen corresponding path program 1 times [2019-09-20 13:43:48,651 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:43:48,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:48,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:43:48,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:48,760 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:43:49,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:43:49,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:43:49,282 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:43:49,282 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:43:49,282 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:43:49,287 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:43:49,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:43:49,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:43:49,304 INFO L87 Difference]: Start difference. First operand 1233 states. Second operand 3 states. [2019-09-20 13:43:49,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:43:49,724 INFO L93 Difference]: Finished difference Result 2039 states and 2679 transitions. [2019-09-20 13:43:49,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:43:49,725 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2019-09-20 13:43:49,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:43:49,766 INFO L225 Difference]: With dead ends: 2039 [2019-09-20 13:43:49,766 INFO L226 Difference]: Without dead ends: 2018 [2019-09-20 13:43:49,768 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:43:49,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2018 states. [2019-09-20 13:43:49,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2018 to 2018. [2019-09-20 13:43:49,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2018 states. [2019-09-20 13:43:49,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2018 states to 2018 states and 2648 transitions. [2019-09-20 13:43:49,981 INFO L78 Accepts]: Start accepts. Automaton has 2018 states and 2648 transitions. Word has length 44 [2019-09-20 13:43:49,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:43:49,981 INFO L475 AbstractCegarLoop]: Abstraction has 2018 states and 2648 transitions. [2019-09-20 13:43:49,981 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:43:49,981 INFO L276 IsEmpty]: Start isEmpty. Operand 2018 states and 2648 transitions. [2019-09-20 13:43:49,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-20 13:43:49,986 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:43:49,986 INFO L407 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] [2019-09-20 13:43:49,987 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:43:49,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:43:49,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1256112124, now seen corresponding path program 1 times [2019-09-20 13:43:49,987 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:43:50,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:50,001 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:43:50,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:50,002 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:43:50,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:43:50,290 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-20 13:43:50,290 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:43:50,291 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:43:50,291 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:43:50,294 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:43:50,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:43:50,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:43:50,300 INFO L87 Difference]: Start difference. First operand 2018 states and 2648 transitions. Second operand 3 states. [2019-09-20 13:43:50,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:43:50,429 INFO L93 Difference]: Finished difference Result 2031 states and 2663 transitions. [2019-09-20 13:43:50,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:43:50,430 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-09-20 13:43:50,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:43:50,447 INFO L225 Difference]: With dead ends: 2031 [2019-09-20 13:43:50,448 INFO L226 Difference]: Without dead ends: 2031 [2019-09-20 13:43:50,449 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:43:50,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2031 states. [2019-09-20 13:43:50,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2031 to 2018. [2019-09-20 13:43:50,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2018 states. [2019-09-20 13:43:50,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2018 states to 2018 states and 2647 transitions. [2019-09-20 13:43:50,553 INFO L78 Accepts]: Start accepts. Automaton has 2018 states and 2647 transitions. Word has length 60 [2019-09-20 13:43:50,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:43:50,554 INFO L475 AbstractCegarLoop]: Abstraction has 2018 states and 2647 transitions. [2019-09-20 13:43:50,555 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:43:50,555 INFO L276 IsEmpty]: Start isEmpty. Operand 2018 states and 2647 transitions. [2019-09-20 13:43:50,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-20 13:43:50,562 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:43:50,563 INFO L407 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] [2019-09-20 13:43:50,563 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:43:50,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:43:50,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1313370426, now seen corresponding path program 1 times [2019-09-20 13:43:50,563 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:43:50,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:50,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:43:50,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:50,576 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:43:50,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:43:50,972 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-20 13:43:50,972 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:43:50,972 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:43:50,972 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:43:50,973 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:43:50,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:43:50,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:43:50,974 INFO L87 Difference]: Start difference. First operand 2018 states and 2647 transitions. Second operand 3 states. [2019-09-20 13:43:51,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:43:51,088 INFO L93 Difference]: Finished difference Result 4008 states and 5304 transitions. [2019-09-20 13:43:51,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:43:51,089 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-09-20 13:43:51,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:43:51,115 INFO L225 Difference]: With dead ends: 4008 [2019-09-20 13:43:51,115 INFO L226 Difference]: Without dead ends: 4008 [2019-09-20 13:43:51,116 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:43:51,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4008 states. [2019-09-20 13:43:51,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4008 to 3998. [2019-09-20 13:43:51,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3998 states. [2019-09-20 13:43:51,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3998 states to 3998 states and 5292 transitions. [2019-09-20 13:43:51,272 INFO L78 Accepts]: Start accepts. Automaton has 3998 states and 5292 transitions. Word has length 60 [2019-09-20 13:43:51,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:43:51,275 INFO L475 AbstractCegarLoop]: Abstraction has 3998 states and 5292 transitions. [2019-09-20 13:43:51,275 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:43:51,275 INFO L276 IsEmpty]: Start isEmpty. Operand 3998 states and 5292 transitions. [2019-09-20 13:43:51,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-20 13:43:51,277 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:43:51,277 INFO L407 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] [2019-09-20 13:43:51,278 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:43:51,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:43:51,278 INFO L82 PathProgramCache]: Analyzing trace with hash 2059141691, now seen corresponding path program 1 times [2019-09-20 13:43:51,278 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:43:51,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:51,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:43:51,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:51,289 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:43:51,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:43:51,528 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-20 13:43:51,528 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:43:51,528 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:43:51,528 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:43:51,529 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:43:51,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:43:51,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:43:51,529 INFO L87 Difference]: Start difference. First operand 3998 states and 5292 transitions. Second operand 3 states. [2019-09-20 13:43:51,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:43:51,680 INFO L93 Difference]: Finished difference Result 7960 states and 10664 transitions. [2019-09-20 13:43:51,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:43:51,681 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2019-09-20 13:43:51,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:43:51,732 INFO L225 Difference]: With dead ends: 7960 [2019-09-20 13:43:51,732 INFO L226 Difference]: Without dead ends: 7960 [2019-09-20 13:43:51,733 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:43:51,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7960 states. [2019-09-20 13:43:51,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7960 to 7951. [2019-09-20 13:43:51,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7951 states. [2019-09-20 13:43:52,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7951 states to 7951 states and 10654 transitions. [2019-09-20 13:43:52,007 INFO L78 Accepts]: Start accepts. Automaton has 7951 states and 10654 transitions. Word has length 61 [2019-09-20 13:43:52,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:43:52,008 INFO L475 AbstractCegarLoop]: Abstraction has 7951 states and 10654 transitions. [2019-09-20 13:43:52,008 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:43:52,008 INFO L276 IsEmpty]: Start isEmpty. Operand 7951 states and 10654 transitions. [2019-09-20 13:43:52,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-09-20 13:43:52,009 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:43:52,010 INFO L407 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] [2019-09-20 13:43:52,010 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:43:52,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:43:52,010 INFO L82 PathProgramCache]: Analyzing trace with hash -591748003, now seen corresponding path program 1 times [2019-09-20 13:43:52,011 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:43:52,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:52,023 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:43:52,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:52,024 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:43:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:43:52,296 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-20 13:43:52,296 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:43:52,296 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:43:52,296 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:43:52,297 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:43:52,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:43:52,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:43:52,297 INFO L87 Difference]: Start difference. First operand 7951 states and 10654 transitions. Second operand 3 states. [2019-09-20 13:43:52,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:43:52,404 INFO L93 Difference]: Finished difference Result 7955 states and 10657 transitions. [2019-09-20 13:43:52,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:43:52,404 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2019-09-20 13:43:52,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:43:52,468 INFO L225 Difference]: With dead ends: 7955 [2019-09-20 13:43:52,468 INFO L226 Difference]: Without dead ends: 7955 [2019-09-20 13:43:52,469 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:43:52,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7955 states. [2019-09-20 13:43:52,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7955 to 7952. [2019-09-20 13:43:52,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7952 states. [2019-09-20 13:43:52,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7952 states to 7952 states and 10655 transitions. [2019-09-20 13:43:52,819 INFO L78 Accepts]: Start accepts. Automaton has 7952 states and 10655 transitions. Word has length 62 [2019-09-20 13:43:52,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:43:52,820 INFO L475 AbstractCegarLoop]: Abstraction has 7952 states and 10655 transitions. [2019-09-20 13:43:52,820 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:43:52,820 INFO L276 IsEmpty]: Start isEmpty. Operand 7952 states and 10655 transitions. [2019-09-20 13:43:52,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-09-20 13:43:52,822 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:43:52,822 INFO L407 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] [2019-09-20 13:43:52,823 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:43:52,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:43:52,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1164945026, now seen corresponding path program 1 times [2019-09-20 13:43:52,823 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:43:52,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:52,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:43:52,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:52,836 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:43:52,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:43:53,041 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-20 13:43:53,042 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:43:53,042 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:43:53,042 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:43:53,042 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:43:53,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:43:53,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:43:53,043 INFO L87 Difference]: Start difference. First operand 7952 states and 10655 transitions. Second operand 3 states. [2019-09-20 13:43:53,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:43:53,118 INFO L93 Difference]: Finished difference Result 7951 states and 10653 transitions. [2019-09-20 13:43:53,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:43:53,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2019-09-20 13:43:53,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:43:53,162 INFO L225 Difference]: With dead ends: 7951 [2019-09-20 13:43:53,163 INFO L226 Difference]: Without dead ends: 7951 [2019-09-20 13:43:53,163 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:43:53,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7951 states. [2019-09-20 13:43:53,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7951 to 7951. [2019-09-20 13:43:53,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7951 states. [2019-09-20 13:43:53,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7951 states to 7951 states and 10653 transitions. [2019-09-20 13:43:53,412 INFO L78 Accepts]: Start accepts. Automaton has 7951 states and 10653 transitions. Word has length 63 [2019-09-20 13:43:53,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:43:53,413 INFO L475 AbstractCegarLoop]: Abstraction has 7951 states and 10653 transitions. [2019-09-20 13:43:53,413 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:43:53,413 INFO L276 IsEmpty]: Start isEmpty. Operand 7951 states and 10653 transitions. [2019-09-20 13:43:53,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-20 13:43:53,415 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:43:53,415 INFO L407 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] [2019-09-20 13:43:53,415 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:43:53,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:43:53,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1754178688, now seen corresponding path program 1 times [2019-09-20 13:43:53,416 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:43:53,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:53,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:43:53,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:53,428 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:43:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:43:54,262 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-20 13:43:54,262 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:43:54,262 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:43:54,262 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:43:54,263 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:43:54,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:43:54,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:43:54,263 INFO L87 Difference]: Start difference. First operand 7951 states and 10653 transitions. Second operand 3 states. [2019-09-20 13:43:54,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:43:54,327 INFO L93 Difference]: Finished difference Result 7950 states and 10651 transitions. [2019-09-20 13:43:54,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:43:54,327 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2019-09-20 13:43:54,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:43:54,364 INFO L225 Difference]: With dead ends: 7950 [2019-09-20 13:43:54,365 INFO L226 Difference]: Without dead ends: 7931 [2019-09-20 13:43:54,365 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:43:54,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7931 states. [2019-09-20 13:43:54,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7931 to 7931. [2019-09-20 13:43:54,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7931 states. [2019-09-20 13:43:54,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7931 states to 7931 states and 10629 transitions. [2019-09-20 13:43:54,633 INFO L78 Accepts]: Start accepts. Automaton has 7931 states and 10629 transitions. Word has length 64 [2019-09-20 13:43:54,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:43:54,633 INFO L475 AbstractCegarLoop]: Abstraction has 7931 states and 10629 transitions. [2019-09-20 13:43:54,634 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:43:54,634 INFO L276 IsEmpty]: Start isEmpty. Operand 7931 states and 10629 transitions. [2019-09-20 13:43:54,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-09-20 13:43:54,651 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:43:54,652 INFO L407 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] [2019-09-20 13:43:54,652 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:43:54,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:43:54,652 INFO L82 PathProgramCache]: Analyzing trace with hash -789401680, now seen corresponding path program 1 times [2019-09-20 13:43:54,653 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:43:54,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:54,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:43:54,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:54,669 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:43:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:43:54,901 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-20 13:43:54,902 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:43:54,902 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:43:54,902 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:43:54,903 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:43:54,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:43:54,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:43:54,904 INFO L87 Difference]: Start difference. First operand 7931 states and 10629 transitions. Second operand 3 states. [2019-09-20 13:43:55,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:43:55,081 INFO L93 Difference]: Finished difference Result 8108 states and 10864 transitions. [2019-09-20 13:43:55,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:43:55,081 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2019-09-20 13:43:55,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:43:55,119 INFO L225 Difference]: With dead ends: 8108 [2019-09-20 13:43:55,119 INFO L226 Difference]: Without dead ends: 8108 [2019-09-20 13:43:55,119 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:43:55,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8108 states. [2019-09-20 13:43:55,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8108 to 8031. [2019-09-20 13:43:55,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8031 states. [2019-09-20 13:43:55,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8031 states to 8031 states and 10772 transitions. [2019-09-20 13:43:55,419 INFO L78 Accepts]: Start accepts. Automaton has 8031 states and 10772 transitions. Word has length 188 [2019-09-20 13:43:55,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:43:55,419 INFO L475 AbstractCegarLoop]: Abstraction has 8031 states and 10772 transitions. [2019-09-20 13:43:55,419 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:43:55,419 INFO L276 IsEmpty]: Start isEmpty. Operand 8031 states and 10772 transitions. [2019-09-20 13:43:55,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-09-20 13:43:55,432 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:43:55,432 INFO L407 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] [2019-09-20 13:43:55,432 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:43:55,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:43:55,433 INFO L82 PathProgramCache]: Analyzing trace with hash 997995072, now seen corresponding path program 1 times [2019-09-20 13:43:55,433 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:43:55,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:55,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:43:55,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:55,447 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:43:55,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:43:55,923 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-20 13:43:55,923 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:43:55,924 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:43:55,924 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:43:55,924 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:43:55,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:43:55,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:43:55,925 INFO L87 Difference]: Start difference. First operand 8031 states and 10772 transitions. Second operand 3 states. [2019-09-20 13:43:56,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:43:56,208 INFO L93 Difference]: Finished difference Result 8480 states and 11295 transitions. [2019-09-20 13:43:56,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:43:56,208 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2019-09-20 13:43:56,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:43:56,252 INFO L225 Difference]: With dead ends: 8480 [2019-09-20 13:43:56,252 INFO L226 Difference]: Without dead ends: 8480 [2019-09-20 13:43:56,253 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:43:56,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8480 states. [2019-09-20 13:43:56,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8480 to 8403. [2019-09-20 13:43:56,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8403 states. [2019-09-20 13:43:56,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8403 states to 8403 states and 11203 transitions. [2019-09-20 13:43:56,483 INFO L78 Accepts]: Start accepts. Automaton has 8403 states and 11203 transitions. Word has length 204 [2019-09-20 13:43:56,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:43:56,484 INFO L475 AbstractCegarLoop]: Abstraction has 8403 states and 11203 transitions. [2019-09-20 13:43:56,484 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:43:56,484 INFO L276 IsEmpty]: Start isEmpty. Operand 8403 states and 11203 transitions. [2019-09-20 13:43:56,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2019-09-20 13:43:56,502 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:43:56,503 INFO L407 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] [2019-09-20 13:43:56,504 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:43:56,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:43:56,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1391506302, now seen corresponding path program 1 times [2019-09-20 13:43:56,505 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:43:56,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:56,523 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:43:56,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:56,524 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:43:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:43:56,910 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-09-20 13:43:56,911 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:43:56,911 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:43:56,911 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:43:56,912 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:43:56,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:43:56,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:43:56,913 INFO L87 Difference]: Start difference. First operand 8403 states and 11203 transitions. Second operand 3 states. [2019-09-20 13:43:57,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:43:57,006 INFO L93 Difference]: Finished difference Result 8451 states and 11259 transitions. [2019-09-20 13:43:57,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:43:57,007 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 237 [2019-09-20 13:43:57,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:43:57,043 INFO L225 Difference]: With dead ends: 8451 [2019-09-20 13:43:57,044 INFO L226 Difference]: Without dead ends: 8451 [2019-09-20 13:43:57,044 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:43:57,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8451 states. [2019-09-20 13:43:57,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8451 to 8435. [2019-09-20 13:43:57,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8435 states. [2019-09-20 13:43:57,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8435 states to 8435 states and 11243 transitions. [2019-09-20 13:43:57,375 INFO L78 Accepts]: Start accepts. Automaton has 8435 states and 11243 transitions. Word has length 237 [2019-09-20 13:43:57,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:43:57,376 INFO L475 AbstractCegarLoop]: Abstraction has 8435 states and 11243 transitions. [2019-09-20 13:43:57,376 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:43:57,376 INFO L276 IsEmpty]: Start isEmpty. Operand 8435 states and 11243 transitions. [2019-09-20 13:43:57,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-09-20 13:43:57,393 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:43:57,394 INFO L407 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] [2019-09-20 13:43:57,394 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:43:57,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:43:57,395 INFO L82 PathProgramCache]: Analyzing trace with hash -643988541, now seen corresponding path program 1 times [2019-09-20 13:43:57,395 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:43:57,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:57,405 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:43:57,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:57,406 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:43:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:43:57,685 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-09-20 13:43:57,686 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:43:57,686 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:43:57,686 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:43:57,687 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:43:57,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:43:57,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:43:57,687 INFO L87 Difference]: Start difference. First operand 8435 states and 11243 transitions. Second operand 6 states. [2019-09-20 13:43:57,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:43:57,855 INFO L93 Difference]: Finished difference Result 8531 states and 11371 transitions. [2019-09-20 13:43:57,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:43:57,857 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 239 [2019-09-20 13:43:57,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:43:57,898 INFO L225 Difference]: With dead ends: 8531 [2019-09-20 13:43:57,899 INFO L226 Difference]: Without dead ends: 8531 [2019-09-20 13:43:57,900 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:43:57,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8531 states. [2019-09-20 13:43:58,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8531 to 8467. [2019-09-20 13:43:58,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8467 states. [2019-09-20 13:43:58,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8467 states to 8467 states and 11275 transitions. [2019-09-20 13:43:58,144 INFO L78 Accepts]: Start accepts. Automaton has 8467 states and 11275 transitions. Word has length 239 [2019-09-20 13:43:58,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:43:58,146 INFO L475 AbstractCegarLoop]: Abstraction has 8467 states and 11275 transitions. [2019-09-20 13:43:58,146 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:43:58,146 INFO L276 IsEmpty]: Start isEmpty. Operand 8467 states and 11275 transitions. [2019-09-20 13:43:58,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-09-20 13:43:58,158 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:43:58,159 INFO L407 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] [2019-09-20 13:43:58,159 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:43:58,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:43:58,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1858071932, now seen corresponding path program 1 times [2019-09-20 13:43:58,160 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:43:58,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:58,174 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:43:58,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:58,174 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:43:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:43:58,505 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-09-20 13:43:58,505 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:43:58,506 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:43:58,506 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:43:58,506 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:43:58,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:43:58,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:43:58,508 INFO L87 Difference]: Start difference. First operand 8467 states and 11275 transitions. Second operand 5 states. [2019-09-20 13:43:58,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:43:58,584 INFO L93 Difference]: Finished difference Result 8491 states and 11291 transitions. [2019-09-20 13:43:58,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:43:58,585 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 240 [2019-09-20 13:43:58,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:43:58,618 INFO L225 Difference]: With dead ends: 8491 [2019-09-20 13:43:58,618 INFO L226 Difference]: Without dead ends: 8491 [2019-09-20 13:43:58,619 INFO L636 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 [2019-09-20 13:43:58,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8491 states. [2019-09-20 13:43:58,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8491 to 8475. [2019-09-20 13:43:58,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8475 states. [2019-09-20 13:43:58,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8475 states to 8475 states and 11275 transitions. [2019-09-20 13:43:58,980 INFO L78 Accepts]: Start accepts. Automaton has 8475 states and 11275 transitions. Word has length 240 [2019-09-20 13:43:58,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:43:58,981 INFO L475 AbstractCegarLoop]: Abstraction has 8475 states and 11275 transitions. [2019-09-20 13:43:58,981 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:43:58,981 INFO L276 IsEmpty]: Start isEmpty. Operand 8475 states and 11275 transitions. [2019-09-20 13:43:58,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-09-20 13:43:58,996 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:43:58,996 INFO L407 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] [2019-09-20 13:43:58,996 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:43:58,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:43:58,997 INFO L82 PathProgramCache]: Analyzing trace with hash 486595109, now seen corresponding path program 1 times [2019-09-20 13:43:58,997 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:43:59,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:59,014 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:43:59,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:59,014 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:43:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:43:59,426 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-20 13:43:59,427 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:43:59,427 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-20 13:43:59,427 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:43:59,429 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-20 13:43:59,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-20 13:43:59,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:43:59,430 INFO L87 Difference]: Start difference. First operand 8475 states and 11275 transitions. Second operand 10 states. [2019-09-20 13:43:59,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:43:59,978 INFO L93 Difference]: Finished difference Result 10655 states and 13810 transitions. [2019-09-20 13:43:59,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-09-20 13:43:59,978 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2019-09-20 13:43:59,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:44:00,016 INFO L225 Difference]: With dead ends: 10655 [2019-09-20 13:44:00,016 INFO L226 Difference]: Without dead ends: 10655 [2019-09-20 13:44:00,017 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2019-09-20 13:44:00,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10655 states. [2019-09-20 13:44:00,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10655 to 8563. [2019-09-20 13:44:00,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8563 states. [2019-09-20 13:44:00,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8563 states to 8563 states and 11367 transitions. [2019-09-20 13:44:00,243 INFO L78 Accepts]: Start accepts. Automaton has 8563 states and 11367 transitions. Word has length 240 [2019-09-20 13:44:00,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:44:00,243 INFO L475 AbstractCegarLoop]: Abstraction has 8563 states and 11367 transitions. [2019-09-20 13:44:00,243 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-20 13:44:00,244 INFO L276 IsEmpty]: Start isEmpty. Operand 8563 states and 11367 transitions. [2019-09-20 13:44:00,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-09-20 13:44:00,255 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:44:00,255 INFO L407 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] [2019-09-20 13:44:00,256 INFO L418 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:44:00,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:44:00,256 INFO L82 PathProgramCache]: Analyzing trace with hash 627143719, now seen corresponding path program 1 times [2019-09-20 13:44:00,256 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:44:00,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:00,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:44:00,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:00,266 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:44:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:44:00,584 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-09-20 13:44:00,585 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:44:00,585 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:44:00,585 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:44:00,586 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:44:00,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:44:00,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:44:00,587 INFO L87 Difference]: Start difference. First operand 8563 states and 11367 transitions. Second operand 4 states. [2019-09-20 13:44:00,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:44:00,677 INFO L93 Difference]: Finished difference Result 8566 states and 11370 transitions. [2019-09-20 13:44:00,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:44:00,678 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 240 [2019-09-20 13:44:00,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:44:00,707 INFO L225 Difference]: With dead ends: 8566 [2019-09-20 13:44:00,707 INFO L226 Difference]: Without dead ends: 8564 [2019-09-20 13:44:00,708 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:44:00,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8564 states. [2019-09-20 13:44:00,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8564 to 8564. [2019-09-20 13:44:00,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8564 states. [2019-09-20 13:44:01,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8564 states to 8564 states and 11368 transitions. [2019-09-20 13:44:01,006 INFO L78 Accepts]: Start accepts. Automaton has 8564 states and 11368 transitions. Word has length 240 [2019-09-20 13:44:01,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:44:01,006 INFO L475 AbstractCegarLoop]: Abstraction has 8564 states and 11368 transitions. [2019-09-20 13:44:01,006 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:44:01,007 INFO L276 IsEmpty]: Start isEmpty. Operand 8564 states and 11368 transitions. [2019-09-20 13:44:01,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-09-20 13:44:01,018 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:44:01,018 INFO L407 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] [2019-09-20 13:44:01,019 INFO L418 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:44:01,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:44:01,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1367446489, now seen corresponding path program 1 times [2019-09-20 13:44:01,019 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:44:01,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:01,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:44:01,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:44:01,031 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:44:01,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:44:01,370 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-20 13:44:01,370 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:44:01,370 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:44:01,371 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 242 with the following transitions: [2019-09-20 13:44:01,375 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] [2019-09-20 13:44:01,441 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:44:01,442 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:44:01,547 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:44:01,548 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. [2019-09-20 13:44:01,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:44:01,553 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:44:01,650 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:44:01,650 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:44:01,659 INFO L420 sIntCurrentIteration]: We unified 240 AI predicates to 240 [2019-09-20 13:44:01,660 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:44:01,660 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:44:01,661 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 4 [2019-09-20 13:44:01,661 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:44:01,662 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:44:01,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:44:01,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:44:01,662 INFO L87 Difference]: Start difference. First operand 8564 states and 11368 transitions. Second operand 2 states. [2019-09-20 13:44:01,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:44:01,663 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:44:01,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:44:01,663 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 241 [2019-09-20 13:44:01,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:44:01,663 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:44:01,663 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:44:01,665 INFO L636 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 [2019-09-20 13:44:01,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:44:01,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:44:01,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:44:01,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:44:01,666 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 241 [2019-09-20 13:44:01,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:44:01,666 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:44:01,666 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:44:01,667 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:44:01,667 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:44:01,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:44:01 BoogieIcfgContainer [2019-09-20 13:44:01,673 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:44:01,676 INFO L168 Benchmark]: Toolchain (without parser) took 20566.49 ms. Allocated memory was 138.4 MB in the beginning and 1.0 GB in the end (delta: 879.8 MB). Free memory was 75.1 MB in the beginning and 689.9 MB in the end (delta: -614.9 MB). Peak memory consumption was 264.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:44:01,678 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 138.4 MB. Free memory was 104.4 MB in the beginning and 104.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:44:01,680 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2804.02 ms. Allocated memory was 138.4 MB in the beginning and 272.1 MB in the end (delta: 133.7 MB). Free memory was 74.9 MB in the beginning and 188.6 MB in the end (delta: -113.8 MB). Peak memory consumption was 111.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:44:01,685 INFO L168 Benchmark]: Boogie Preprocessor took 341.09 ms. Allocated memory is still 272.1 MB. Free memory was 188.6 MB in the beginning and 163.5 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:44:01,686 INFO L168 Benchmark]: RCFGBuilder took 4247.04 ms. Allocated memory was 272.1 MB in the beginning and 379.1 MB in the end (delta: 107.0 MB). Free memory was 163.5 MB in the beginning and 298.2 MB in the end (delta: -134.7 MB). Peak memory consumption was 221.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:44:01,687 INFO L168 Benchmark]: TraceAbstraction took 13169.60 ms. Allocated memory was 379.1 MB in the beginning and 1.0 GB in the end (delta: 639.1 MB). Free memory was 298.2 MB in the beginning and 689.9 MB in the end (delta: -391.7 MB). Peak memory consumption was 247.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:44:01,700 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 138.4 MB. Free memory was 104.4 MB in the beginning and 104.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2804.02 ms. Allocated memory was 138.4 MB in the beginning and 272.1 MB in the end (delta: 133.7 MB). Free memory was 74.9 MB in the beginning and 188.6 MB in the end (delta: -113.8 MB). Peak memory consumption was 111.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 341.09 ms. Allocated memory is still 272.1 MB. Free memory was 188.6 MB in the beginning and 163.5 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4247.04 ms. Allocated memory was 272.1 MB in the beginning and 379.1 MB in the end (delta: 107.0 MB). Free memory was 163.5 MB in the beginning and 298.2 MB in the end (delta: -134.7 MB). Peak memory consumption was 221.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13169.60 ms. Allocated memory was 379.1 MB in the beginning and 1.0 GB in the end (delta: 639.1 MB). Free memory was 298.2 MB in the beginning and 689.9 MB in the end (delta: -391.7 MB). Peak memory consumption was 247.4 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, 13.1s OverallTime, 15 OverallIterations, 3 TraceHistogramMax, 3.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 20801 SDtfs, 10108 SDslu, 32920 SDs, 0 SdLazy, 271 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 309 GetRequests, 271 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s 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, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.2291666666666665 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.5s AutomataMinimizationTime, 15 MinimizatonAttempts, 2377 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 2.6s 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...