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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:24:14,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:24:14,275 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:24:14,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:24:14,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:24:14,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:24:14,290 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:24:14,292 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:24:14,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:24:14,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:24:14,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:24:14,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:24:14,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:24:14,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:24:14,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:24:14,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:24:14,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:24:14,301 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:24:14,303 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:24:14,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:24:14,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:24:14,308 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:24:14,309 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:24:14,310 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:24:14,312 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:24:14,313 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:24:14,313 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:24:14,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:24:14,314 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:24:14,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:24:14,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:24:14,316 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:24:14,317 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:24:14,318 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:24:14,319 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:24:14,319 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:24:14,320 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:24:14,320 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:24:14,320 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:24:14,321 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:24:14,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:24:14,323 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 [2019-09-16 17:24:14,343 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:24:14,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:24:14,344 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:24:14,344 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:24:14,345 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:24:14,345 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:24:14,345 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:24:14,345 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:24:14,346 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:24:14,346 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:24:14,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:24:14,348 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:24:14,348 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:24:14,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:24:14,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:24:14,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:24:14,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:24:14,349 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:24:14,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:24:14,350 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:24:14,350 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:24:14,350 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:24:14,351 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:24:14,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:24:14,351 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:24:14,351 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:24:14,352 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:24:14,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:24:14,353 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:24:14,353 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:24:14,402 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:24:14,422 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:24:14,426 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:24:14,427 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:24:14,428 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:24:14,429 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2019-09-16 17:24:14,500 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4151cbe2/c12b2fefe5764a9ca93e3bfc445651cd/FLAG33402e06f [2019-09-16 17:24:15,253 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:24:15,254 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2019-09-16 17:24:15,281 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4151cbe2/c12b2fefe5764a9ca93e3bfc445651cd/FLAG33402e06f [2019-09-16 17:24:15,356 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4151cbe2/c12b2fefe5764a9ca93e3bfc445651cd [2019-09-16 17:24:15,366 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:24:15,367 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:24:15,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:24:15,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:24:15,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:24:15,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:24:15" (1/1) ... [2019-09-16 17:24:15,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@625161da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:24:15, skipping insertion in model container [2019-09-16 17:24:15,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:24:15" (1/1) ... [2019-09-16 17:24:15,384 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:24:15,490 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:24:16,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:24:16,916 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:24:17,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:24:17,344 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:24:17,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:24:17 WrapperNode [2019-09-16 17:24:17,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:24:17,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:24:17,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:24:17,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:24:17,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:24:17" (1/1) ... [2019-09-16 17:24:17,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:24:17" (1/1) ... [2019-09-16 17:24:17,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:24:17" (1/1) ... [2019-09-16 17:24:17,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:24:17" (1/1) ... [2019-09-16 17:24:17,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:24:17" (1/1) ... [2019-09-16 17:24:17,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:24:17" (1/1) ... [2019-09-16 17:24:17,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:24:17" (1/1) ... [2019-09-16 17:24:17,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:24:17,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:24:17,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:24:17,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:24:17,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:24:17" (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 [2019-09-16 17:24:17,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:24:17,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:24:17,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-09-16 17:24:17,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-09-16 17:24:17,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2019-09-16 17:24:17,705 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-09-16 17:24:17,706 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-09-16 17:24:17,706 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2019-09-16 17:24:17,706 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-09-16 17:24:17,706 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_and_test [2019-09-16 17:24:17,706 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2019-09-16 17:24:17,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-16 17:24:17,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-09-16 17:24:17,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-09-16 17:24:17,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-09-16 17:24:17,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-09-16 17:24:17,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-16 17:24:17,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-09-16 17:24:17,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-16 17:24:17,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-16 17:24:17,709 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2019-09-16 17:24:17,709 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2019-09-16 17:24:17,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-09-16 17:24:17,709 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-09-16 17:24:17,709 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-09-16 17:24:17,710 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2019-09-16 17:24:17,710 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2019-09-16 17:24:17,710 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2019-09-16 17:24:17,710 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2019-09-16 17:24:17,710 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-09-16 17:24:17,711 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2019-09-16 17:24:17,711 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-09-16 17:24:17,711 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-09-16 17:24:17,711 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_write [2019-09-16 17:24:17,711 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_get_drvdata [2019-09-16 17:24:17,711 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_set_drvdata [2019-09-16 17:24:17,712 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_pause_rx [2019-09-16 17:24:17,712 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_continue_rx [2019-09-16 17:24:17,712 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_fasync [2019-09-16 17:24:17,712 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_locate [2019-09-16 17:24:17,712 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_open [2019-09-16 17:24:17,712 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_free [2019-09-16 17:24:17,713 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_release [2019-09-16 17:24:17,713 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_fetch_byte [2019-09-16 17:24:17,713 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_read [2019-09-16 17:24:17,713 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_write [2019-09-16 17:24:17,713 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_poll [2019-09-16 17:24:17,713 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_interrupt [2019-09-16 17:24:17,714 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_connect [2019-09-16 17:24:17,714 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_reconnect [2019-09-16 17:24:17,714 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_hangup [2019-09-16 17:24:17,714 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_disconnect [2019-09-16 17:24:17,714 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_drv_init [2019-09-16 17:24:17,764 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_drv_exit [2019-09-16 17:24:17,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serio_driver_1 [2019-09-16 17:24:17,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2019-09-16 17:24:17,764 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:24:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2019-09-16 17:24:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_6 [2019-09-16 17:24:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2019-09-16 17:24:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2019-09-16 17:24:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_9 [2019-09-16 17:24:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_10 [2019-09-16 17:24:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-09-16 17:24:17,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_12 [2019-09-16 17:24:17,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2019-09-16 17:24:17,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_14 [2019-09-16 17:24:17,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_15 [2019-09-16 17:24:17,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_16 [2019-09-16 17:24:17,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_17 [2019-09-16 17:24:17,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_register_18 [2019-09-16 17:24:17,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_register_19 [2019-09-16 17:24:17,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_deregister_20 [2019-09-16 17:24:17,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_21 [2019-09-16 17:24:17,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_22 [2019-09-16 17:24:17,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___serio_register_driver_23 [2019-09-16 17:24:17,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serio_unregister_driver_24 [2019-09-16 17:24:17,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-16 17:24:17,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2019-09-16 17:24:17,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-09-16 17:24:17,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-09-16 17:24:17,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-09-16 17:24:17,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-09-16 17:24:17,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-09-16 17:24:17,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-09-16 17:24:17,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2019-09-16 17:24:17,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-09-16 17:24:17,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-09-16 17:24:17,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-09-16 17:24:17,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-09-16 17:24:17,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-09-16 17:24:17,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-09-16 17:24:17,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-09-16 17:24:17,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-09-16 17:24:17,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-09-16 17:24:17,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-09-16 17:24:17,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-09-16 17:24:17,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-09-16 17:24:17,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-09-16 17:24:17,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-09-16 17:24:17,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-09-16 17:24:17,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2019-09-16 17:24:17,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2019-09-16 17:24:17,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2019-09-16 17:24:17,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2019-09-16 17:24:17,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-09-16 17:24:17,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-09-16 17:24:17,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-09-16 17:24:17,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-09-16 17:24:17,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-09-16 17:24:17,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-09-16 17:24:17,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-09-16 17:24:17,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2019-09-16 17:24:17,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2019-09-16 17:24:17,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-09-16 17:24:17,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2019-09-16 17:24:17,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2019-09-16 17:24:17,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_serio_raw_mutex [2019-09-16 17:24:17,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_serio_raw_mutex [2019-09-16 17:24:17,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_serio_raw_mutex [2019-09-16 17:24:17,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_serio_raw_mutex [2019-09-16 17:24:17,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_serio_raw_mutex [2019-09-16 17:24:17,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_serio_raw_mutex [2019-09-16 17:24:17,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_serio_raw_mutex [2019-09-16 17:24:17,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_serio_raw_mutex [2019-09-16 17:24:17,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_serio_raw_mutex [2019-09-16 17:24:17,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_serio_raw_mutex [2019-09-16 17:24:17,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-16 17:24:17,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2019-09-16 17:24:17,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-09-16 17:24:17,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-09-16 17:24:17,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2019-09-16 17:24:17,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-09-16 17:24:17,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2019-09-16 17:24:17,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __serio_register_driver [2019-09-16 17:24:17,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-09-16 17:24:17,776 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-09-16 17:24:17,777 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2019-09-16 17:24:17,777 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2019-09-16 17:24:17,777 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-09-16 17:24:17,777 INFO L138 BoogieDeclarations]: Found implementation of procedure fasync_helper [2019-09-16 17:24:17,777 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-09-16 17:24:17,777 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device [2019-09-16 17:24:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_fasync [2019-09-16 17:24:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-16 17:24:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-09-16 17:24:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2019-09-16 17:24:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2019-09-16 17:24:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-09-16 17:24:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2019-09-16 17:24:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_killable [2019-09-16 17:24:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-09-16 17:24:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-09-16 17:24:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2019-09-16 17:24:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2019-09-16 17:24:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2019-09-16 17:24:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-09-16 17:24:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_close [2019-09-16 17:24:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_open [2019-09-16 17:24:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_unregister_driver [2019-09-16 17:24:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-09-16 17:24:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-16 17:24:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-16 17:24:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-16 17:24:17,781 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-09-16 17:24:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:24:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-16 17:24:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2019-09-16 17:24:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2019-09-16 17:24:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-09-16 17:24:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-09-16 17:24:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-09-16 17:24:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:24:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-09-16 17:24:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-09-16 17:24:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:24:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2019-09-16 17:24:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-09-16 17:24:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2019-09-16 17:24:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-16 17:24:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-09-16 17:24:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2019-09-16 17:24:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-09-16 17:24:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:24:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_and_test [2019-09-16 17:24:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2019-09-16 17:24:17,784 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-09-16 17:24:17,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_10 [2019-09-16 17:24:17,784 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-09-16 17:24:17,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_6 [2019-09-16 17:24:17,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2019-09-16 17:24:17,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-09-16 17:24:17,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2019-09-16 17:24:17,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_15 [2019-09-16 17:24:17,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_17 [2019-09-16 17:24:17,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_22 [2019-09-16 17:24:17,785 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:24:17,785 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-16 17:24:17,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:24:17,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-16 17:24:17,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-16 17:24:17,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-16 17:24:17,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-16 17:24:17,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:24:17,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-09-16 17:24:17,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-09-16 17:24:17,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-09-16 17:24:17,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-09-16 17:24:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-16 17:24:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-09-16 17:24:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-16 17:24:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-09-16 17:24:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-16 17:24:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2019-09-16 17:24:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_12 [2019-09-16 17:24:17,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_14 [2019-09-16 17:24:17,788 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_killable [2019-09-16 17:24:17,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_16 [2019-09-16 17:24:17,788 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-09-16 17:24:17,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2019-09-16 17:24:17,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2019-09-16 17:24:17,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_9 [2019-09-16 17:24:17,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_21 [2019-09-16 17:24:17,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2019-09-16 17:24:17,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-09-16 17:24:17,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-09-16 17:24:17,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-09-16 17:24:17,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-09-16 17:24:17,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-09-16 17:24:17,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-09-16 17:24:17,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2019-09-16 17:24:17,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_serio_raw_mutex [2019-09-16 17:24:17,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_serio_raw_mutex [2019-09-16 17:24:17,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_serio_raw_mutex [2019-09-16 17:24:17,790 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2019-09-16 17:24:17,790 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2019-09-16 17:24:17,791 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2019-09-16 17:24:17,791 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2019-09-16 17:24:17,791 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-09-16 17:24:17,791 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-09-16 17:24:17,791 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2019-09-16 17:24:17,791 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-09-16 17:24:17,791 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-09-16 17:24:17,792 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-16 17:24:17,792 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-09-16 17:24:17,792 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-09-16 17:24:17,792 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-09-16 17:24:17,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serio_driver_1 [2019-09-16 17:24:17,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2019-09-16 17:24:17,792 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2019-09-16 17:24:17,793 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2019-09-16 17:24:17,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:24:17,793 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2019-09-16 17:24:17,793 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-09-16 17:24:17,793 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2019-09-16 17:24:17,793 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-09-16 17:24:17,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:24:17,794 INFO L130 BoogieDeclarations]: Found specification of procedure fasync_helper [2019-09-16 17:24:17,794 INFO L130 BoogieDeclarations]: Found specification of procedure kill_fasync [2019-09-16 17:24:17,794 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-09-16 17:24:17,794 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2019-09-16 17:24:17,794 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-09-16 17:24:17,794 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-09-16 17:24:17,795 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-09-16 17:24:17,795 INFO L130 BoogieDeclarations]: Found specification of procedure get_device [2019-09-16 17:24:17,795 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2019-09-16 17:24:17,795 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-09-16 17:24:17,795 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-09-16 17:24:17,795 INFO L130 BoogieDeclarations]: Found specification of procedure serio_open [2019-09-16 17:24:17,795 INFO L130 BoogieDeclarations]: Found specification of procedure serio_close [2019-09-16 17:24:17,796 INFO L130 BoogieDeclarations]: Found specification of procedure __serio_register_driver [2019-09-16 17:24:17,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___serio_register_driver_23 [2019-09-16 17:24:17,796 INFO L130 BoogieDeclarations]: Found specification of procedure serio_unregister_driver [2019-09-16 17:24:17,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serio_unregister_driver_24 [2019-09-16 17:24:17,796 INFO L130 BoogieDeclarations]: Found specification of procedure serio_write [2019-09-16 17:24:17,796 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2019-09-16 17:24:17,796 INFO L130 BoogieDeclarations]: Found specification of procedure serio_get_drvdata [2019-09-16 17:24:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure serio_set_drvdata [2019-09-16 17:24:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure serio_pause_rx [2019-09-16 17:24:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure serio_continue_rx [2019-09-16 17:24:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2019-09-16 17:24:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_register_18 [2019-09-16 17:24:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_register_19 [2019-09-16 17:24:17,797 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2019-09-16 17:24:17,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_deregister_20 [2019-09-16 17:24:17,798 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_fasync [2019-09-16 17:24:17,798 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_locate [2019-09-16 17:24:17,798 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_open [2019-09-16 17:24:17,798 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_free [2019-09-16 17:24:17,798 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_release [2019-09-16 17:24:17,798 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_fetch_byte [2019-09-16 17:24:17,798 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_read [2019-09-16 17:24:17,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:24:17,799 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_write [2019-09-16 17:24:17,799 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_poll [2019-09-16 17:24:17,799 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_interrupt [2019-09-16 17:24:17,799 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_connect [2019-09-16 17:24:17,799 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_reconnect [2019-09-16 17:24:17,799 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_hangup [2019-09-16 17:24:17,800 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_disconnect [2019-09-16 17:24:17,800 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_drv_init [2019-09-16 17:24:17,800 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_drv_exit [2019-09-16 17:24:17,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-16 17:24:17,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-16 17:24:17,800 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:24:17,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-16 17:24:17,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2019-09-16 17:24:17,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-09-16 17:24:17,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-09-16 17:24:17,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-09-16 17:24:17,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-09-16 17:24:17,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-09-16 17:24:17,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-09-16 17:24:17,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-09-16 17:24:17,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-09-16 17:24:17,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-09-16 17:24:17,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-09-16 17:24:17,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-09-16 17:24:17,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-09-16 17:24:17,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-09-16 17:24:17,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-09-16 17:24:17,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-09-16 17:24:17,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-09-16 17:24:17,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-09-16 17:24:17,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-09-16 17:24:17,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2019-09-16 17:24:17,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2019-09-16 17:24:17,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2019-09-16 17:24:17,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2019-09-16 17:24:17,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-09-16 17:24:17,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-09-16 17:24:17,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-09-16 17:24:17,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-09-16 17:24:17,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2019-09-16 17:24:17,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2019-09-16 17:24:17,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-09-16 17:24:17,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2019-09-16 17:24:17,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_serio_raw_mutex [2019-09-16 17:24:17,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_serio_raw_mutex [2019-09-16 17:24:17,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_serio_raw_mutex [2019-09-16 17:24:17,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_serio_raw_mutex [2019-09-16 17:24:17,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_serio_raw_mutex [2019-09-16 17:24:17,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_serio_raw_mutex [2019-09-16 17:24:17,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_serio_raw_mutex [2019-09-16 17:24:17,805 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-16 17:24:17,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-09-16 17:24:17,805 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:24:17,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:24:17,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:24:17,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-16 17:24:17,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:24:18,591 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-16 17:24:20,342 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:24:20,342 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-16 17:24:20,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:24:20 BoogieIcfgContainer [2019-09-16 17:24:20,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:24:20,348 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:24:20,348 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:24:20,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:24:20,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:24:15" (1/3) ... [2019-09-16 17:24:20,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8977c50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:24:20, skipping insertion in model container [2019-09-16 17:24:20,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:24:17" (2/3) ... [2019-09-16 17:24:20,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8977c50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:24:20, skipping insertion in model container [2019-09-16 17:24:20,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:24:20" (3/3) ... [2019-09-16 17:24:20,358 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2019-09-16 17:24:20,368 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:24:20,380 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:24:20,396 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:24:20,426 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:24:20,426 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:24:20,426 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:24:20,426 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:24:20,426 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:24:20,426 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:24:20,427 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:24:20,427 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:24:20,477 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states. [2019-09-16 17:24:20,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-09-16 17:24:20,520 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:24:20,522 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:24:20,528 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:24:20,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:24:20,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1733405938, now seen corresponding path program 1 times [2019-09-16 17:24:20,539 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:24:20,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:20,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:24:20,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:20,637 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:24:21,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:24:21,431 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2019-09-16 17:24:21,433 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:24:21,434 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:24:21,434 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:24:21,440 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:24:21,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:24:21,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:24:21,461 INFO L87 Difference]: Start difference. First operand 955 states. Second operand 3 states. [2019-09-16 17:24:21,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:24:21,720 INFO L93 Difference]: Finished difference Result 1122 states and 1362 transitions. [2019-09-16 17:24:21,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:24:21,722 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2019-09-16 17:24:21,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:24:21,769 INFO L225 Difference]: With dead ends: 1122 [2019-09-16 17:24:21,770 INFO L226 Difference]: Without dead ends: 1099 [2019-09-16 17:24:21,778 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 [2019-09-16 17:24:21,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2019-09-16 17:24:21,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 1060. [2019-09-16 17:24:21,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1060 states. [2019-09-16 17:24:21,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1290 transitions. [2019-09-16 17:24:21,989 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1290 transitions. Word has length 184 [2019-09-16 17:24:21,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:24:21,993 INFO L475 AbstractCegarLoop]: Abstraction has 1060 states and 1290 transitions. [2019-09-16 17:24:21,993 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:24:21,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1290 transitions. [2019-09-16 17:24:22,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-09-16 17:24:22,000 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:24:22,001 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:24:22,002 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:24:22,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:24:22,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1940161896, now seen corresponding path program 1 times [2019-09-16 17:24:22,003 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:24:22,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:22,015 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:24:22,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:22,015 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:24:22,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:24:22,337 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2019-09-16 17:24:22,337 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:24:22,339 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:24:22,339 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:24:22,353 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:24:22,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:24:22,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:24:22,358 INFO L87 Difference]: Start difference. First operand 1060 states and 1290 transitions. Second operand 3 states. [2019-09-16 17:24:22,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:24:22,537 INFO L93 Difference]: Finished difference Result 2004 states and 2435 transitions. [2019-09-16 17:24:22,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:24:22,538 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2019-09-16 17:24:22,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:24:22,557 INFO L225 Difference]: With dead ends: 2004 [2019-09-16 17:24:22,558 INFO L226 Difference]: Without dead ends: 2004 [2019-09-16 17:24:22,560 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 [2019-09-16 17:24:22,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2004 states. [2019-09-16 17:24:22,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2004 to 1998. [2019-09-16 17:24:22,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1998 states. [2019-09-16 17:24:22,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1998 states to 1998 states and 2430 transitions. [2019-09-16 17:24:22,669 INFO L78 Accepts]: Start accepts. Automaton has 1998 states and 2430 transitions. Word has length 186 [2019-09-16 17:24:22,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:24:22,669 INFO L475 AbstractCegarLoop]: Abstraction has 1998 states and 2430 transitions. [2019-09-16 17:24:22,670 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:24:22,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1998 states and 2430 transitions. [2019-09-16 17:24:22,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-09-16 17:24:22,674 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:24:22,674 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:24:22,674 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:24:22,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:24:22,675 INFO L82 PathProgramCache]: Analyzing trace with hash -116844323, now seen corresponding path program 1 times [2019-09-16 17:24:22,675 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:24:22,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:22,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:24:22,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:22,686 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:24:22,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:24:23,016 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2019-09-16 17:24:23,021 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:24:23,021 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:24:23,021 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:24:23,022 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:24:23,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:24:23,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:24:23,023 INFO L87 Difference]: Start difference. First operand 1998 states and 2430 transitions. Second operand 3 states. [2019-09-16 17:24:23,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:24:23,094 INFO L93 Difference]: Finished difference Result 2009 states and 2441 transitions. [2019-09-16 17:24:23,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:24:23,095 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2019-09-16 17:24:23,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:24:23,108 INFO L225 Difference]: With dead ends: 2009 [2019-09-16 17:24:23,109 INFO L226 Difference]: Without dead ends: 2009 [2019-09-16 17:24:23,109 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 [2019-09-16 17:24:23,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2009 states. [2019-09-16 17:24:23,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2009 to 1998. [2019-09-16 17:24:23,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1998 states. [2019-09-16 17:24:23,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1998 states to 1998 states and 2428 transitions. [2019-09-16 17:24:23,186 INFO L78 Accepts]: Start accepts. Automaton has 1998 states and 2428 transitions. Word has length 193 [2019-09-16 17:24:23,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:24:23,188 INFO L475 AbstractCegarLoop]: Abstraction has 1998 states and 2428 transitions. [2019-09-16 17:24:23,188 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:24:23,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1998 states and 2428 transitions. [2019-09-16 17:24:23,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-09-16 17:24:23,192 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:24:23,192 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:24:23,193 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:24:23,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:24:23,193 INFO L82 PathProgramCache]: Analyzing trace with hash -59586021, now seen corresponding path program 1 times [2019-09-16 17:24:23,193 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:24:23,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:23,201 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:24:23,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:23,201 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:24:23,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:24:23,434 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2019-09-16 17:24:23,434 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:24:23,434 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:24:23,435 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:24:23,435 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:24:23,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:24:23,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:24:23,436 INFO L87 Difference]: Start difference. First operand 1998 states and 2428 transitions. Second operand 3 states. [2019-09-16 17:24:23,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:24:23,471 INFO L93 Difference]: Finished difference Result 1997 states and 2426 transitions. [2019-09-16 17:24:23,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:24:23,472 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2019-09-16 17:24:23,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:24:23,484 INFO L225 Difference]: With dead ends: 1997 [2019-09-16 17:24:23,484 INFO L226 Difference]: Without dead ends: 1997 [2019-09-16 17:24:23,485 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 [2019-09-16 17:24:23,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2019-09-16 17:24:23,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1997. [2019-09-16 17:24:23,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1997 states. [2019-09-16 17:24:23,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1997 states to 1997 states and 2426 transitions. [2019-09-16 17:24:23,548 INFO L78 Accepts]: Start accepts. Automaton has 1997 states and 2426 transitions. Word has length 193 [2019-09-16 17:24:23,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:24:23,551 INFO L475 AbstractCegarLoop]: Abstraction has 1997 states and 2426 transitions. [2019-09-16 17:24:23,551 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:24:23,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1997 states and 2426 transitions. [2019-09-16 17:24:23,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-09-16 17:24:23,555 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:24:23,558 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:24:23,559 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:24:23,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:24:23,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1847578983, now seen corresponding path program 1 times [2019-09-16 17:24:23,559 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:24:23,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:23,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:24:23,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:23,566 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:24:23,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:24:23,781 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2019-09-16 17:24:23,782 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:24:23,782 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:24:23,782 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:24:23,782 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:24:23,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:24:23,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:24:23,785 INFO L87 Difference]: Start difference. First operand 1997 states and 2426 transitions. Second operand 3 states. [2019-09-16 17:24:23,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:24:23,818 INFO L93 Difference]: Finished difference Result 1996 states and 2424 transitions. [2019-09-16 17:24:23,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:24:23,819 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2019-09-16 17:24:23,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:24:23,833 INFO L225 Difference]: With dead ends: 1996 [2019-09-16 17:24:23,833 INFO L226 Difference]: Without dead ends: 1996 [2019-09-16 17:24:23,834 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 [2019-09-16 17:24:23,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1996 states. [2019-09-16 17:24:23,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1996 to 1996. [2019-09-16 17:24:23,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1996 states. [2019-09-16 17:24:23,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1996 states to 1996 states and 2424 transitions. [2019-09-16 17:24:23,980 INFO L78 Accepts]: Start accepts. Automaton has 1996 states and 2424 transitions. Word has length 194 [2019-09-16 17:24:23,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:24:23,985 INFO L475 AbstractCegarLoop]: Abstraction has 1996 states and 2424 transitions. [2019-09-16 17:24:23,985 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:24:23,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1996 states and 2424 transitions. [2019-09-16 17:24:23,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-09-16 17:24:23,990 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:24:23,991 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:24:23,991 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:24:23,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:24:23,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1440781090, now seen corresponding path program 1 times [2019-09-16 17:24:23,992 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:24:24,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:24,005 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:24:24,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:24,006 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:24:24,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:24:24,241 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2019-09-16 17:24:24,242 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:24:24,242 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:24:24,242 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:24:24,243 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:24:24,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:24:24,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:24:24,243 INFO L87 Difference]: Start difference. First operand 1996 states and 2424 transitions. Second operand 3 states. [2019-09-16 17:24:24,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:24:24,275 INFO L93 Difference]: Finished difference Result 1995 states and 2422 transitions. [2019-09-16 17:24:24,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:24:24,275 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 195 [2019-09-16 17:24:24,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:24:24,287 INFO L225 Difference]: With dead ends: 1995 [2019-09-16 17:24:24,287 INFO L226 Difference]: Without dead ends: 1995 [2019-09-16 17:24:24,288 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 [2019-09-16 17:24:24,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1995 states. [2019-09-16 17:24:24,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1995 to 1995. [2019-09-16 17:24:24,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1995 states. [2019-09-16 17:24:24,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 2422 transitions. [2019-09-16 17:24:24,373 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 2422 transitions. Word has length 195 [2019-09-16 17:24:24,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:24:24,374 INFO L475 AbstractCegarLoop]: Abstraction has 1995 states and 2422 transitions. [2019-09-16 17:24:24,374 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:24:24,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 2422 transitions. [2019-09-16 17:24:24,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-09-16 17:24:24,377 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:24:24,377 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:24:24,377 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:24:24,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:24:24,378 INFO L82 PathProgramCache]: Analyzing trace with hash 239338668, now seen corresponding path program 1 times [2019-09-16 17:24:24,378 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:24:24,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:24,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:24:24,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:24,385 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:24:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:24:24,564 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2019-09-16 17:24:24,564 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:24:24,564 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:24:24,564 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:24:24,565 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:24:24,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:24:24,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:24:24,566 INFO L87 Difference]: Start difference. First operand 1995 states and 2422 transitions. Second operand 3 states. [2019-09-16 17:24:24,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:24:24,676 INFO L93 Difference]: Finished difference Result 3222 states and 3892 transitions. [2019-09-16 17:24:24,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:24:24,676 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 200 [2019-09-16 17:24:24,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:24:24,696 INFO L225 Difference]: With dead ends: 3222 [2019-09-16 17:24:24,696 INFO L226 Difference]: Without dead ends: 3222 [2019-09-16 17:24:24,698 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 [2019-09-16 17:24:24,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3222 states. [2019-09-16 17:24:24,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3222 to 3181. [2019-09-16 17:24:24,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3181 states. [2019-09-16 17:24:24,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 3848 transitions. [2019-09-16 17:24:24,820 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 3848 transitions. Word has length 200 [2019-09-16 17:24:24,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:24:24,821 INFO L475 AbstractCegarLoop]: Abstraction has 3181 states and 3848 transitions. [2019-09-16 17:24:24,821 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:24:24,821 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 3848 transitions. [2019-09-16 17:24:24,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-09-16 17:24:24,825 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:24:24,826 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:24:24,826 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:24:24,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:24:24,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1714943428, now seen corresponding path program 1 times [2019-09-16 17:24:24,826 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:24:24,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:24,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:24:24,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:24,838 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:24:24,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:24:25,144 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2019-09-16 17:24:25,145 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:24:25,145 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:24:25,145 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:24:25,146 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:24:25,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:24:25,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:24:25,146 INFO L87 Difference]: Start difference. First operand 3181 states and 3848 transitions. Second operand 3 states. [2019-09-16 17:24:25,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:24:25,254 INFO L93 Difference]: Finished difference Result 5672 states and 7007 transitions. [2019-09-16 17:24:25,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:24:25,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2019-09-16 17:24:25,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:24:25,290 INFO L225 Difference]: With dead ends: 5672 [2019-09-16 17:24:25,291 INFO L226 Difference]: Without dead ends: 5654 [2019-09-16 17:24:25,291 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 [2019-09-16 17:24:25,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5654 states. [2019-09-16 17:24:25,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5654 to 5599. [2019-09-16 17:24:25,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5599 states. [2019-09-16 17:24:25,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5599 states to 5599 states and 6925 transitions. [2019-09-16 17:24:25,481 INFO L78 Accepts]: Start accepts. Automaton has 5599 states and 6925 transitions. Word has length 196 [2019-09-16 17:24:25,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:24:25,482 INFO L475 AbstractCegarLoop]: Abstraction has 5599 states and 6925 transitions. [2019-09-16 17:24:25,483 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:24:25,483 INFO L276 IsEmpty]: Start isEmpty. Operand 5599 states and 6925 transitions. [2019-09-16 17:24:25,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2019-09-16 17:24:25,488 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:24:25,488 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2019-09-16 17:24:25,489 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:24:25,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:24:25,489 INFO L82 PathProgramCache]: Analyzing trace with hash -129752437, now seen corresponding path program 1 times [2019-09-16 17:24:25,489 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:24:25,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:25,498 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:24:25,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:25,499 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:24:25,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:24:25,755 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2019-09-16 17:24:25,755 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:24:25,755 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:24:25,755 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:24:25,758 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:24:25,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:24:25,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:24:25,759 INFO L87 Difference]: Start difference. First operand 5599 states and 6925 transitions. Second operand 3 states. [2019-09-16 17:24:25,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:24:25,927 INFO L93 Difference]: Finished difference Result 7794 states and 9640 transitions. [2019-09-16 17:24:25,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:24:25,928 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 268 [2019-09-16 17:24:25,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:24:25,983 INFO L225 Difference]: With dead ends: 7794 [2019-09-16 17:24:25,984 INFO L226 Difference]: Without dead ends: 7794 [2019-09-16 17:24:25,984 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 [2019-09-16 17:24:25,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7794 states. [2019-09-16 17:24:26,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7794 to 7721. [2019-09-16 17:24:26,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7721 states. [2019-09-16 17:24:26,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7721 states to 7721 states and 9561 transitions. [2019-09-16 17:24:26,198 INFO L78 Accepts]: Start accepts. Automaton has 7721 states and 9561 transitions. Word has length 268 [2019-09-16 17:24:26,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:24:26,199 INFO L475 AbstractCegarLoop]: Abstraction has 7721 states and 9561 transitions. [2019-09-16 17:24:26,199 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:24:26,199 INFO L276 IsEmpty]: Start isEmpty. Operand 7721 states and 9561 transitions. [2019-09-16 17:24:26,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2019-09-16 17:24:26,209 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:24:26,209 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:24:26,209 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:24:26,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:24:26,210 INFO L82 PathProgramCache]: Analyzing trace with hash 508410820, now seen corresponding path program 1 times [2019-09-16 17:24:26,210 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:24:26,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:26,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:24:26,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:26,219 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:24:26,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:24:26,657 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 449 trivial. 0 not checked. [2019-09-16 17:24:26,658 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:24:26,658 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:24:26,658 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:24:26,659 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:24:26,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:24:26,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:24:26,659 INFO L87 Difference]: Start difference. First operand 7721 states and 9561 transitions. Second operand 3 states. [2019-09-16 17:24:26,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:24:26,806 INFO L93 Difference]: Finished difference Result 7723 states and 9372 transitions. [2019-09-16 17:24:26,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:24:26,807 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 308 [2019-09-16 17:24:26,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:24:26,843 INFO L225 Difference]: With dead ends: 7723 [2019-09-16 17:24:26,843 INFO L226 Difference]: Without dead ends: 7723 [2019-09-16 17:24:26,844 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:24:26,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7723 states. [2019-09-16 17:24:27,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7723 to 7478. [2019-09-16 17:24:27,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7478 states. [2019-09-16 17:24:27,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7478 states to 7478 states and 9123 transitions. [2019-09-16 17:24:27,106 INFO L78 Accepts]: Start accepts. Automaton has 7478 states and 9123 transitions. Word has length 308 [2019-09-16 17:24:27,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:24:27,107 INFO L475 AbstractCegarLoop]: Abstraction has 7478 states and 9123 transitions. [2019-09-16 17:24:27,108 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:24:27,108 INFO L276 IsEmpty]: Start isEmpty. Operand 7478 states and 9123 transitions. [2019-09-16 17:24:27,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2019-09-16 17:24:27,119 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:24:27,120 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:24:27,120 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:24:27,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:24:27,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1228208050, now seen corresponding path program 1 times [2019-09-16 17:24:27,121 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:24:27,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:27,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:24:27,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:27,131 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:24:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:24:27,479 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 443 trivial. 0 not checked. [2019-09-16 17:24:27,479 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:24:27,479 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:24:27,480 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:24:27,480 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:24:27,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:24:27,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:24:27,481 INFO L87 Difference]: Start difference. First operand 7478 states and 9123 transitions. Second operand 3 states. [2019-09-16 17:24:27,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:24:27,557 INFO L93 Difference]: Finished difference Result 7494 states and 9091 transitions. [2019-09-16 17:24:27,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:24:27,558 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 320 [2019-09-16 17:24:27,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:24:27,607 INFO L225 Difference]: With dead ends: 7494 [2019-09-16 17:24:27,607 INFO L226 Difference]: Without dead ends: 7494 [2019-09-16 17:24:27,608 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 [2019-09-16 17:24:27,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7494 states. [2019-09-16 17:24:27,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7494 to 7478. [2019-09-16 17:24:27,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7478 states. [2019-09-16 17:24:27,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7478 states to 7478 states and 9075 transitions. [2019-09-16 17:24:27,877 INFO L78 Accepts]: Start accepts. Automaton has 7478 states and 9075 transitions. Word has length 320 [2019-09-16 17:24:27,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:24:27,877 INFO L475 AbstractCegarLoop]: Abstraction has 7478 states and 9075 transitions. [2019-09-16 17:24:27,878 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:24:27,878 INFO L276 IsEmpty]: Start isEmpty. Operand 7478 states and 9075 transitions. [2019-09-16 17:24:27,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2019-09-16 17:24:27,885 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:24:27,885 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:24:27,886 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:24:27,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:24:27,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1400579147, now seen corresponding path program 1 times [2019-09-16 17:24:27,887 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:24:27,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:27,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:24:27,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:27,896 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:24:27,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:24:28,203 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2019-09-16 17:24:28,203 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:24:28,204 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:24:28,204 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:24:28,205 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:24:28,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:24:28,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:24:28,207 INFO L87 Difference]: Start difference. First operand 7478 states and 9075 transitions. Second operand 3 states. [2019-09-16 17:24:28,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:24:28,352 INFO L93 Difference]: Finished difference Result 3996 states and 4834 transitions. [2019-09-16 17:24:28,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:24:28,353 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 322 [2019-09-16 17:24:28,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:24:28,375 INFO L225 Difference]: With dead ends: 3996 [2019-09-16 17:24:28,376 INFO L226 Difference]: Without dead ends: 3990 [2019-09-16 17:24:28,376 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 [2019-09-16 17:24:28,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3990 states. [2019-09-16 17:24:28,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3990 to 3977. [2019-09-16 17:24:28,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3977 states. [2019-09-16 17:24:28,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3977 states to 3977 states and 4816 transitions. [2019-09-16 17:24:28,499 INFO L78 Accepts]: Start accepts. Automaton has 3977 states and 4816 transitions. Word has length 322 [2019-09-16 17:24:28,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:24:28,500 INFO L475 AbstractCegarLoop]: Abstraction has 3977 states and 4816 transitions. [2019-09-16 17:24:28,500 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:24:28,500 INFO L276 IsEmpty]: Start isEmpty. Operand 3977 states and 4816 transitions. [2019-09-16 17:24:28,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2019-09-16 17:24:28,511 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:24:28,511 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:24:28,512 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:24:28,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:24:28,512 INFO L82 PathProgramCache]: Analyzing trace with hash -307943945, now seen corresponding path program 1 times [2019-09-16 17:24:28,513 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:24:28,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:28,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:24:28,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:28,525 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:24:28,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:24:28,943 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 443 trivial. 0 not checked. [2019-09-16 17:24:28,944 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:24:28,944 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:24:28,944 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:24:28,945 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:24:28,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:24:28,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:24:28,946 INFO L87 Difference]: Start difference. First operand 3977 states and 4816 transitions. Second operand 7 states. [2019-09-16 17:24:29,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:24:29,072 INFO L93 Difference]: Finished difference Result 3975 states and 4818 transitions. [2019-09-16 17:24:29,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:24:29,072 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 322 [2019-09-16 17:24:29,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:24:29,087 INFO L225 Difference]: With dead ends: 3975 [2019-09-16 17:24:29,087 INFO L226 Difference]: Without dead ends: 3975 [2019-09-16 17:24:29,087 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:24:29,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3975 states. [2019-09-16 17:24:29,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3975 to 3970. [2019-09-16 17:24:29,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3970 states. [2019-09-16 17:24:29,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3970 states to 3970 states and 4810 transitions. [2019-09-16 17:24:29,184 INFO L78 Accepts]: Start accepts. Automaton has 3970 states and 4810 transitions. Word has length 322 [2019-09-16 17:24:29,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:24:29,185 INFO L475 AbstractCegarLoop]: Abstraction has 3970 states and 4810 transitions. [2019-09-16 17:24:29,185 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:24:29,185 INFO L276 IsEmpty]: Start isEmpty. Operand 3970 states and 4810 transitions. [2019-09-16 17:24:29,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2019-09-16 17:24:29,194 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:24:29,194 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:24:29,195 INFO L418 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:24:29,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:24:29,195 INFO L82 PathProgramCache]: Analyzing trace with hash -262257937, now seen corresponding path program 1 times [2019-09-16 17:24:29,195 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:24:29,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:29,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:24:29,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:29,203 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:24:29,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:24:29,549 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 453 trivial. 0 not checked. [2019-09-16 17:24:29,550 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:24:29,550 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:24:29,550 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:24:29,551 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:24:29,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:24:29,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:24:29,553 INFO L87 Difference]: Start difference. First operand 3970 states and 4810 transitions. Second operand 7 states. [2019-09-16 17:24:29,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:24:29,662 INFO L93 Difference]: Finished difference Result 3965 states and 4802 transitions. [2019-09-16 17:24:29,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:24:29,663 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 371 [2019-09-16 17:24:29,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:24:29,683 INFO L225 Difference]: With dead ends: 3965 [2019-09-16 17:24:29,683 INFO L226 Difference]: Without dead ends: 3965 [2019-09-16 17:24:29,684 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:24:29,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3965 states. [2019-09-16 17:24:29,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3965 to 3963. [2019-09-16 17:24:29,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3963 states. [2019-09-16 17:24:29,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3963 states to 3963 states and 4799 transitions. [2019-09-16 17:24:29,805 INFO L78 Accepts]: Start accepts. Automaton has 3963 states and 4799 transitions. Word has length 371 [2019-09-16 17:24:29,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:24:29,806 INFO L475 AbstractCegarLoop]: Abstraction has 3963 states and 4799 transitions. [2019-09-16 17:24:29,806 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:24:29,806 INFO L276 IsEmpty]: Start isEmpty. Operand 3963 states and 4799 transitions. [2019-09-16 17:24:29,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2019-09-16 17:24:29,827 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:24:29,828 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:24:29,829 INFO L418 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:24:29,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:24:29,830 INFO L82 PathProgramCache]: Analyzing trace with hash 319209690, now seen corresponding path program 1 times [2019-09-16 17:24:29,830 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:24:29,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:29,841 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:24:29,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:29,841 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:24:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:24:30,320 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2019-09-16 17:24:30,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:24:30,321 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:24:30,321 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:24:30,322 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:24:30,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:24:30,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:24:30,323 INFO L87 Difference]: Start difference. First operand 3963 states and 4799 transitions. Second operand 7 states. [2019-09-16 17:24:30,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:24:30,438 INFO L93 Difference]: Finished difference Result 3914 states and 4731 transitions. [2019-09-16 17:24:30,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:24:30,438 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 413 [2019-09-16 17:24:30,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:24:30,452 INFO L225 Difference]: With dead ends: 3914 [2019-09-16 17:24:30,452 INFO L226 Difference]: Without dead ends: 3914 [2019-09-16 17:24:30,454 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:24:30,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3914 states. [2019-09-16 17:24:30,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3914 to 3902. [2019-09-16 17:24:30,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3902 states. [2019-09-16 17:24:30,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3902 states to 3902 states and 4713 transitions. [2019-09-16 17:24:30,535 INFO L78 Accepts]: Start accepts. Automaton has 3902 states and 4713 transitions. Word has length 413 [2019-09-16 17:24:30,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:24:30,536 INFO L475 AbstractCegarLoop]: Abstraction has 3902 states and 4713 transitions. [2019-09-16 17:24:30,536 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:24:30,536 INFO L276 IsEmpty]: Start isEmpty. Operand 3902 states and 4713 transitions. [2019-09-16 17:24:30,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2019-09-16 17:24:30,551 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:24:30,551 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:24:30,552 INFO L418 AbstractCegarLoop]: === Iteration 16 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:24:30,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:24:30,552 INFO L82 PathProgramCache]: Analyzing trace with hash -125957590, now seen corresponding path program 1 times [2019-09-16 17:24:30,552 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:24:30,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:30,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:24:30,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:30,559 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:24:30,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:24:30,984 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2019-09-16 17:24:30,988 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:24:30,988 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:24:30,988 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:24:30,989 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:24:30,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:24:30,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:24:30,990 INFO L87 Difference]: Start difference. First operand 3902 states and 4713 transitions. Second operand 7 states. [2019-09-16 17:24:31,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:24:31,102 INFO L93 Difference]: Finished difference Result 3929 states and 4755 transitions. [2019-09-16 17:24:31,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:24:31,102 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 423 [2019-09-16 17:24:31,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:24:31,117 INFO L225 Difference]: With dead ends: 3929 [2019-09-16 17:24:31,117 INFO L226 Difference]: Without dead ends: 3929 [2019-09-16 17:24:31,117 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:24:31,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3929 states. [2019-09-16 17:24:31,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3929 to 3917. [2019-09-16 17:24:31,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3917 states. [2019-09-16 17:24:31,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3917 states to 3917 states and 4737 transitions. [2019-09-16 17:24:31,210 INFO L78 Accepts]: Start accepts. Automaton has 3917 states and 4737 transitions. Word has length 423 [2019-09-16 17:24:31,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:24:31,210 INFO L475 AbstractCegarLoop]: Abstraction has 3917 states and 4737 transitions. [2019-09-16 17:24:31,211 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:24:31,211 INFO L276 IsEmpty]: Start isEmpty. Operand 3917 states and 4737 transitions. [2019-09-16 17:24:31,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2019-09-16 17:24:31,227 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:24:31,227 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:24:31,227 INFO L418 AbstractCegarLoop]: === Iteration 17 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:24:31,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:24:31,228 INFO L82 PathProgramCache]: Analyzing trace with hash -867254320, now seen corresponding path program 1 times [2019-09-16 17:24:31,228 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:24:31,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:31,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:24:31,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:31,236 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:24:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:24:31,700 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2019-09-16 17:24:31,700 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:24:31,701 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:24:31,701 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:24:31,702 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:24:31,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:24:31,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:24:31,702 INFO L87 Difference]: Start difference. First operand 3917 states and 4737 transitions. Second operand 7 states. [2019-09-16 17:24:31,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:24:31,768 INFO L93 Difference]: Finished difference Result 3714 states and 4481 transitions. [2019-09-16 17:24:31,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:24:31,768 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 430 [2019-09-16 17:24:31,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:24:31,782 INFO L225 Difference]: With dead ends: 3714 [2019-09-16 17:24:31,782 INFO L226 Difference]: Without dead ends: 3714 [2019-09-16 17:24:31,783 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:24:31,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3714 states. [2019-09-16 17:24:31,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3714 to 3702. [2019-09-16 17:24:31,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3702 states. [2019-09-16 17:24:31,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3702 states to 3702 states and 4466 transitions. [2019-09-16 17:24:31,863 INFO L78 Accepts]: Start accepts. Automaton has 3702 states and 4466 transitions. Word has length 430 [2019-09-16 17:24:31,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:24:31,867 INFO L475 AbstractCegarLoop]: Abstraction has 3702 states and 4466 transitions. [2019-09-16 17:24:31,868 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:24:31,868 INFO L276 IsEmpty]: Start isEmpty. Operand 3702 states and 4466 transitions. [2019-09-16 17:24:31,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2019-09-16 17:24:31,883 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:24:31,884 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:24:31,886 INFO L418 AbstractCegarLoop]: === Iteration 18 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:24:31,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:24:31,887 INFO L82 PathProgramCache]: Analyzing trace with hash -244983352, now seen corresponding path program 1 times [2019-09-16 17:24:31,887 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:24:31,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:31,895 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:24:31,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:24:31,896 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:24:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:24:32,298 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2019-09-16 17:24:32,299 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:24:32,299 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:24:32,299 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:24:32,300 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:24:32,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:24:32,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:24:32,301 INFO L87 Difference]: Start difference. First operand 3702 states and 4466 transitions. Second operand 7 states. [2019-09-16 17:24:32,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:24:32,359 INFO L93 Difference]: Finished difference Result 2528 states and 2983 transitions. [2019-09-16 17:24:32,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:24:32,360 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 436 [2019-09-16 17:24:32,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:24:32,361 INFO L225 Difference]: With dead ends: 2528 [2019-09-16 17:24:32,361 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:24:32,361 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:24:32,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:24:32,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:24:32,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:24:32,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:24:32,362 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 436 [2019-09-16 17:24:32,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:24:32,363 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:24:32,363 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:24:32,363 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:24:32,363 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:24:32,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:24:32 BoogieIcfgContainer [2019-09-16 17:24:32,369 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:24:32,373 INFO L168 Benchmark]: Toolchain (without parser) took 17004.04 ms. Allocated memory was 137.4 MB in the beginning and 921.7 MB in the end (delta: 784.3 MB). Free memory was 77.9 MB in the beginning and 411.4 MB in the end (delta: -333.4 MB). Peak memory consumption was 450.9 MB. Max. memory is 7.1 GB. [2019-09-16 17:24:32,375 INFO L168 Benchmark]: CDTParser took 0.97 ms. Allocated memory is still 137.4 MB. Free memory was 103.2 MB in the beginning and 103.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-09-16 17:24:32,380 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1977.32 ms. Allocated memory was 137.4 MB in the beginning and 214.4 MB in the end (delta: 77.1 MB). Free memory was 77.7 MB in the beginning and 93.8 MB in the end (delta: -16.0 MB). Peak memory consumption was 74.5 MB. Max. memory is 7.1 GB. [2019-09-16 17:24:32,382 INFO L168 Benchmark]: Boogie Preprocessor took 275.03 ms. Allocated memory is still 214.4 MB. Free memory was 93.8 MB in the beginning and 80.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2019-09-16 17:24:32,383 INFO L168 Benchmark]: RCFGBuilder took 2723.70 ms. Allocated memory was 214.4 MB in the beginning and 278.4 MB in the end (delta: 64.0 MB). Free memory was 80.2 MB in the beginning and 120.7 MB in the end (delta: -40.5 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. [2019-09-16 17:24:32,384 INFO L168 Benchmark]: TraceAbstraction took 12021.90 ms. Allocated memory was 278.4 MB in the beginning and 921.7 MB in the end (delta: 643.3 MB). Free memory was 120.7 MB in the beginning and 411.4 MB in the end (delta: -290.7 MB). Peak memory consumption was 352.6 MB. Max. memory is 7.1 GB. [2019-09-16 17:24:32,397 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.97 ms. Allocated memory is still 137.4 MB. Free memory was 103.2 MB in the beginning and 103.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1977.32 ms. Allocated memory was 137.4 MB in the beginning and 214.4 MB in the end (delta: 77.1 MB). Free memory was 77.7 MB in the beginning and 93.8 MB in the end (delta: -16.0 MB). Peak memory consumption was 74.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 275.03 ms. Allocated memory is still 214.4 MB. Free memory was 93.8 MB in the beginning and 80.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2723.70 ms. Allocated memory was 214.4 MB in the beginning and 278.4 MB in the end (delta: 64.0 MB). Free memory was 80.2 MB in the beginning and 120.7 MB in the end (delta: -40.5 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12021.90 ms. Allocated memory was 278.4 MB in the beginning and 921.7 MB in the end (delta: 643.3 MB). Free memory was 120.7 MB in the beginning and 411.4 MB in the end (delta: -290.7 MB). Peak memory consumption was 352.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4592]: 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 165 procedures, 1097 locations, 1 error locations. SAFE Result, 11.9s OverallTime, 18 OverallIterations, 9 TraceHistogramMax, 2.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 18345 SDtfs, 7918 SDslu, 33480 SDs, 0 SdLazy, 327 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7721occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.3s AutomataMinimizationTime, 18 MinimizatonAttempts, 542 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 5154 NumberOfCodeBlocks, 5154 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 5136 ConstructedInterpolants, 0 QuantifiedInterpolants, 1770327 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 8145/8145 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...