java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-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-fea9116 [2019-09-20 13:22:38,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:22:38,301 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:22:38,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:22:38,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:22:38,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:22:38,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:22:38,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:22:38,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:22:38,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:22:38,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:22:38,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:22:38,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:22:38,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:22:38,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:22:38,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:22:38,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:22:38,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:22:38,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:22:38,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:22:38,332 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:22:38,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:22:38,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:22:38,335 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:22:38,337 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:22:38,337 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:22:38,338 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:22:38,338 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:22:38,339 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:22:38,340 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:22:38,340 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:22:38,340 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:22:38,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:22:38,342 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:22:38,343 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:22:38,343 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:22:38,344 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:22:38,344 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:22:38,344 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:22:38,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:22:38,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:22:38,346 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-20 13:22:38,360 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:22:38,360 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:22:38,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 13:22:38,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 13:22:38,362 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 13:22:38,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:22:38,362 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:22:38,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 13:22:38,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:22:38,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:22:38,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:22:38,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:22:38,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:22:38,364 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:22:38,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:22:38,364 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 13:22:38,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:22:38,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:22:38,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:22:38,365 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 13:22:38,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 13:22:38,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:22:38,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:22:38,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:22:38,366 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 13:22:38,366 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 13:22:38,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:22:38,366 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 13:22:38,367 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:22:38,415 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:22:38,433 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:22:38,436 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:22:38,438 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:22:38,438 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:22:38,439 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2019-09-20 13:22:38,499 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/591b90973/fb9430e6f4584cd2bc007c3e96a0d8c2/FLAGf3e8de9a5 [2019-09-20 13:22:39,271 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:22:39,272 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2019-09-20 13:22:39,308 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/591b90973/fb9430e6f4584cd2bc007c3e96a0d8c2/FLAGf3e8de9a5 [2019-09-20 13:22:39,344 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/591b90973/fb9430e6f4584cd2bc007c3e96a0d8c2 [2019-09-20 13:22:39,355 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:22:39,357 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:22:39,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:22:39,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:22:39,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:22:39,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:22:39" (1/1) ... [2019-09-20 13:22:39,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58869b9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:22:39, skipping insertion in model container [2019-09-20 13:22:39,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:22:39" (1/1) ... [2019-09-20 13:22:39,371 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:22:39,463 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:22:40,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:22:40,879 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:22:41,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:22:41,241 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:22:41,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:22:41 WrapperNode [2019-09-20 13:22:41,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:22:41,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:22:41,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:22:41,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:22:41,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:22:41" (1/1) ... [2019-09-20 13:22:41,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:22:41" (1/1) ... [2019-09-20 13:22:41,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:22:41" (1/1) ... [2019-09-20 13:22:41,303 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:22:41" (1/1) ... [2019-09-20 13:22:41,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:22:41" (1/1) ... [2019-09-20 13:22:41,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:22:41" (1/1) ... [2019-09-20 13:22:41,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:22:41" (1/1) ... [2019-09-20 13:22:41,462 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:22:41,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:22:41,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:22:41,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:22:41,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:22:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:22:41,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:22:41,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:22:41,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-09-20 13:22:41,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-09-20 13:22:41,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2019-09-20 13:22:41,544 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-09-20 13:22:41,544 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-09-20 13:22:41,544 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2019-09-20 13:22:41,544 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-09-20 13:22:41,544 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_and_test [2019-09-20 13:22:41,545 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2019-09-20 13:22:41,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-20 13:22:41,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-09-20 13:22:41,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-09-20 13:22:41,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-09-20 13:22:41,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-09-20 13:22:41,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-20 13:22:41,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-09-20 13:22:41,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-20 13:22:41,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-20 13:22:41,551 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2019-09-20 13:22:41,551 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2019-09-20 13:22:41,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-09-20 13:22:41,552 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-09-20 13:22:41,552 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-09-20 13:22:41,552 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2019-09-20 13:22:41,552 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2019-09-20 13:22:41,552 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2019-09-20 13:22:41,553 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2019-09-20 13:22:41,553 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-09-20 13:22:41,553 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2019-09-20 13:22:41,553 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-09-20 13:22:41,554 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-09-20 13:22:41,554 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_write [2019-09-20 13:22:41,554 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_get_drvdata [2019-09-20 13:22:41,554 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_set_drvdata [2019-09-20 13:22:41,554 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_pause_rx [2019-09-20 13:22:41,555 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_continue_rx [2019-09-20 13:22:41,555 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_fasync [2019-09-20 13:22:41,555 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_locate [2019-09-20 13:22:41,555 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_open [2019-09-20 13:22:41,556 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_free [2019-09-20 13:22:41,556 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_release [2019-09-20 13:22:41,556 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_fetch_byte [2019-09-20 13:22:41,556 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_read [2019-09-20 13:22:41,556 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_write [2019-09-20 13:22:41,557 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_poll [2019-09-20 13:22:41,557 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_interrupt [2019-09-20 13:22:41,557 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_connect [2019-09-20 13:22:41,557 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_reconnect [2019-09-20 13:22:41,558 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_hangup [2019-09-20 13:22:41,558 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_disconnect [2019-09-20 13:22:41,558 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_drv_init [2019-09-20 13:22:41,558 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_drv_exit [2019-09-20 13:22:41,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serio_driver_1 [2019-09-20 13:22:41,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2019-09-20 13:22:41,559 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:22:41,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2019-09-20 13:22:41,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_6 [2019-09-20 13:22:41,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2019-09-20 13:22:41,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2019-09-20 13:22:41,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_9 [2019-09-20 13:22:41,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_10 [2019-09-20 13:22:41,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-09-20 13:22:41,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_12 [2019-09-20 13:22:41,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2019-09-20 13:22:41,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_14 [2019-09-20 13:22:41,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_15 [2019-09-20 13:22:41,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_16 [2019-09-20 13:22:41,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_17 [2019-09-20 13:22:41,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_register_18 [2019-09-20 13:22:41,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_register_19 [2019-09-20 13:22:41,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_deregister_20 [2019-09-20 13:22:41,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_21 [2019-09-20 13:22:41,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_22 [2019-09-20 13:22:41,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___serio_register_driver_23 [2019-09-20 13:22:41,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serio_unregister_driver_24 [2019-09-20 13:22:41,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-20 13:22:41,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2019-09-20 13:22:41,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-09-20 13:22:41,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-09-20 13:22:41,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-09-20 13:22:41,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-09-20 13:22:41,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-09-20 13:22:41,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-09-20 13:22:41,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2019-09-20 13:22:41,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-09-20 13:22:41,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-09-20 13:22:41,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-09-20 13:22:41,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-09-20 13:22:41,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-09-20 13:22:41,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-09-20 13:22:41,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-09-20 13:22:41,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-09-20 13:22:41,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-09-20 13:22:41,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-09-20 13:22:41,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-09-20 13:22:41,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-09-20 13:22:41,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-09-20 13:22:41,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-09-20 13:22:41,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-09-20 13:22:41,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2019-09-20 13:22:41,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2019-09-20 13:22:41,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2019-09-20 13:22:41,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2019-09-20 13:22:41,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-09-20 13:22:41,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-09-20 13:22:41,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-09-20 13:22:41,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-09-20 13:22:41,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-09-20 13:22:41,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-09-20 13:22:41,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-09-20 13:22:41,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2019-09-20 13:22:41,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2019-09-20 13:22:41,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-09-20 13:22:41,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2019-09-20 13:22:41,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2019-09-20 13:22:41,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_serio_raw_mutex [2019-09-20 13:22:41,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_serio_raw_mutex [2019-09-20 13:22:41,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_serio_raw_mutex [2019-09-20 13:22:41,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_serio_raw_mutex [2019-09-20 13:22:41,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_serio_raw_mutex [2019-09-20 13:22:41,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_serio_raw_mutex [2019-09-20 13:22:41,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_serio_raw_mutex [2019-09-20 13:22:41,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_serio_raw_mutex [2019-09-20 13:22:41,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_serio_raw_mutex [2019-09-20 13:22:41,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_serio_raw_mutex [2019-09-20 13:22:41,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-20 13:22:41,624 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2019-09-20 13:22:41,624 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-09-20 13:22:41,624 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-09-20 13:22:41,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2019-09-20 13:22:41,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-09-20 13:22:41,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2019-09-20 13:22:41,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __serio_register_driver [2019-09-20 13:22:41,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-09-20 13:22:41,626 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-09-20 13:22:41,626 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2019-09-20 13:22:41,627 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2019-09-20 13:22:41,629 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-09-20 13:22:41,630 INFO L138 BoogieDeclarations]: Found implementation of procedure fasync_helper [2019-09-20 13:22:41,630 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-09-20 13:22:41,630 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device [2019-09-20 13:22:41,630 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_fasync [2019-09-20 13:22:41,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-20 13:22:41,631 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-09-20 13:22:41,631 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2019-09-20 13:22:41,631 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2019-09-20 13:22:41,631 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-09-20 13:22:41,631 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2019-09-20 13:22:41,631 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_killable [2019-09-20 13:22:41,631 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-09-20 13:22:41,632 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-09-20 13:22:41,632 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2019-09-20 13:22:41,632 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2019-09-20 13:22:41,635 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2019-09-20 13:22:41,636 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-09-20 13:22:41,636 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_close [2019-09-20 13:22:41,636 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_open [2019-09-20 13:22:41,636 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_unregister_driver [2019-09-20 13:22:41,636 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-09-20 13:22:41,636 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-20 13:22:41,637 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-20 13:22:41,637 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-20 13:22:41,637 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-09-20 13:22:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:22:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-20 13:22:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2019-09-20 13:22:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2019-09-20 13:22:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-09-20 13:22:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-09-20 13:22:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-09-20 13:22:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:22:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-09-20 13:22:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-09-20 13:22:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:22:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2019-09-20 13:22:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-09-20 13:22:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2019-09-20 13:22:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-20 13:22:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-09-20 13:22:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2019-09-20 13:22:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-09-20 13:22:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:22:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_and_test [2019-09-20 13:22:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2019-09-20 13:22:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-09-20 13:22:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_10 [2019-09-20 13:22:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-09-20 13:22:41,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_6 [2019-09-20 13:22:41,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2019-09-20 13:22:41,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-09-20 13:22:41,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2019-09-20 13:22:41,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_15 [2019-09-20 13:22:41,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_17 [2019-09-20 13:22:41,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_22 [2019-09-20 13:22:41,643 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:22:41,643 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-20 13:22:41,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:22:41,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-20 13:22:41,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-20 13:22:41,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 13:22:41,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-20 13:22:41,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:22:41,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-09-20 13:22:41,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-09-20 13:22:41,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-09-20 13:22:41,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-09-20 13:22:41,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-20 13:22:41,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-09-20 13:22:41,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-20 13:22:41,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-09-20 13:22:41,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-20 13:22:41,645 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2019-09-20 13:22:41,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_12 [2019-09-20 13:22:41,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_14 [2019-09-20 13:22:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_killable [2019-09-20 13:22:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_16 [2019-09-20 13:22:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-09-20 13:22:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2019-09-20 13:22:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2019-09-20 13:22:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_9 [2019-09-20 13:22:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_21 [2019-09-20 13:22:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2019-09-20 13:22:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-09-20 13:22:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-09-20 13:22:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-09-20 13:22:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-09-20 13:22:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-09-20 13:22:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-09-20 13:22:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2019-09-20 13:22:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_serio_raw_mutex [2019-09-20 13:22:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_serio_raw_mutex [2019-09-20 13:22:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_serio_raw_mutex [2019-09-20 13:22:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2019-09-20 13:22:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2019-09-20 13:22:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2019-09-20 13:22:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2019-09-20 13:22:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-09-20 13:22:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-09-20 13:22:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2019-09-20 13:22:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-09-20 13:22:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-09-20 13:22:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-20 13:22:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-09-20 13:22:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-09-20 13:22:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-09-20 13:22:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serio_driver_1 [2019-09-20 13:22:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2019-09-20 13:22:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2019-09-20 13:22:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2019-09-20 13:22:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:22:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2019-09-20 13:22:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-09-20 13:22:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2019-09-20 13:22:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-09-20 13:22:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:22:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure fasync_helper [2019-09-20 13:22:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure kill_fasync [2019-09-20 13:22:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-09-20 13:22:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2019-09-20 13:22:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-09-20 13:22:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-09-20 13:22:41,654 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-09-20 13:22:41,654 INFO L130 BoogieDeclarations]: Found specification of procedure get_device [2019-09-20 13:22:41,654 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2019-09-20 13:22:41,655 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-09-20 13:22:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-09-20 13:22:41,659 INFO L130 BoogieDeclarations]: Found specification of procedure serio_open [2019-09-20 13:22:41,660 INFO L130 BoogieDeclarations]: Found specification of procedure serio_close [2019-09-20 13:22:41,660 INFO L130 BoogieDeclarations]: Found specification of procedure __serio_register_driver [2019-09-20 13:22:41,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___serio_register_driver_23 [2019-09-20 13:22:41,667 INFO L130 BoogieDeclarations]: Found specification of procedure serio_unregister_driver [2019-09-20 13:22:41,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serio_unregister_driver_24 [2019-09-20 13:22:41,668 INFO L130 BoogieDeclarations]: Found specification of procedure serio_write [2019-09-20 13:22:41,668 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2019-09-20 13:22:41,671 INFO L130 BoogieDeclarations]: Found specification of procedure serio_get_drvdata [2019-09-20 13:22:41,671 INFO L130 BoogieDeclarations]: Found specification of procedure serio_set_drvdata [2019-09-20 13:22:41,671 INFO L130 BoogieDeclarations]: Found specification of procedure serio_pause_rx [2019-09-20 13:22:41,671 INFO L130 BoogieDeclarations]: Found specification of procedure serio_continue_rx [2019-09-20 13:22:41,671 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2019-09-20 13:22:41,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_register_18 [2019-09-20 13:22:41,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_register_19 [2019-09-20 13:22:41,672 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2019-09-20 13:22:41,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_deregister_20 [2019-09-20 13:22:41,672 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_fasync [2019-09-20 13:22:41,672 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_locate [2019-09-20 13:22:41,672 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_open [2019-09-20 13:22:41,673 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_free [2019-09-20 13:22:41,673 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_release [2019-09-20 13:22:41,673 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_fetch_byte [2019-09-20 13:22:41,673 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_read [2019-09-20 13:22:41,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:22:41,676 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_write [2019-09-20 13:22:41,676 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_poll [2019-09-20 13:22:41,676 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_interrupt [2019-09-20 13:22:41,676 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_connect [2019-09-20 13:22:41,676 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_reconnect [2019-09-20 13:22:41,677 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_hangup [2019-09-20 13:22:41,677 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_disconnect [2019-09-20 13:22:41,677 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_drv_init [2019-09-20 13:22:41,677 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_drv_exit [2019-09-20 13:22:41,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-20 13:22:41,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-20 13:22:41,677 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:22:41,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-20 13:22:41,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2019-09-20 13:22:41,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-09-20 13:22:41,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-09-20 13:22:41,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-09-20 13:22:41,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-09-20 13:22:41,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-09-20 13:22:41,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-09-20 13:22:41,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-09-20 13:22:41,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-09-20 13:22:41,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-09-20 13:22:41,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-09-20 13:22:41,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-09-20 13:22:41,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-09-20 13:22:41,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-09-20 13:22:41,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-09-20 13:22:41,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-09-20 13:22:41,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-09-20 13:22:41,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-09-20 13:22:41,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-09-20 13:22:41,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2019-09-20 13:22:41,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2019-09-20 13:22:41,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2019-09-20 13:22:41,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2019-09-20 13:22:41,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-09-20 13:22:41,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-09-20 13:22:41,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-09-20 13:22:41,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-09-20 13:22:41,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2019-09-20 13:22:41,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2019-09-20 13:22:41,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-09-20 13:22:41,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2019-09-20 13:22:41,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_serio_raw_mutex [2019-09-20 13:22:41,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_serio_raw_mutex [2019-09-20 13:22:41,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_serio_raw_mutex [2019-09-20 13:22:41,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_serio_raw_mutex [2019-09-20 13:22:41,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_serio_raw_mutex [2019-09-20 13:22:41,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_serio_raw_mutex [2019-09-20 13:22:41,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_serio_raw_mutex [2019-09-20 13:22:41,683 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-20 13:22:41,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-09-20 13:22:41,684 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:22:41,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:22:41,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:22:41,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-20 13:22:41,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:22:42,773 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-20 13:22:44,715 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:22:44,716 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-20 13:22:44,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:22:44 BoogieIcfgContainer [2019-09-20 13:22:44,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:22:44,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:22:44,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:22:44,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:22:44,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:22:39" (1/3) ... [2019-09-20 13:22:44,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54e6d486 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:22:44, skipping insertion in model container [2019-09-20 13:22:44,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:22:41" (2/3) ... [2019-09-20 13:22:44,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54e6d486 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:22:44, skipping insertion in model container [2019-09-20 13:22:44,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:22:44" (3/3) ... [2019-09-20 13:22:44,730 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2019-09-20 13:22:44,740 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:22:44,754 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:22:44,772 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:22:44,821 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-20 13:22:44,822 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:22:44,822 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-20 13:22:44,822 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:22:44,822 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:22:44,822 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:22:44,823 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:22:44,823 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:22:44,823 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:22:44,874 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states. [2019-09-20 13:22:44,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-09-20 13:22:44,906 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:22:44,908 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 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] [2019-09-20 13:22:44,911 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:22:44,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:22:44,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1729461888, now seen corresponding path program 1 times [2019-09-20 13:22:44,919 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:22:44,920 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:22:45,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:45,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:22:45,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:45,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:22:45,860 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2019-09-20 13:22:45,863 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:22:45,863 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:22:45,869 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:22:45,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:22:45,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:22:45,890 INFO L87 Difference]: Start difference. First operand 954 states. Second operand 3 states. [2019-09-20 13:22:46,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:22:46,210 INFO L93 Difference]: Finished difference Result 1823 states and 2289 transitions. [2019-09-20 13:22:46,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:22:46,212 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2019-09-20 13:22:46,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:22:46,239 INFO L225 Difference]: With dead ends: 1823 [2019-09-20 13:22:46,239 INFO L226 Difference]: Without dead ends: 1097 [2019-09-20 13:22:46,251 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:22:46,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2019-09-20 13:22:46,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1058. [2019-09-20 13:22:46,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1058 states. [2019-09-20 13:22:46,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1286 transitions. [2019-09-20 13:22:46,428 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1286 transitions. Word has length 178 [2019-09-20 13:22:46,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:22:46,431 INFO L475 AbstractCegarLoop]: Abstraction has 1058 states and 1286 transitions. [2019-09-20 13:22:46,431 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:22:46,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1286 transitions. [2019-09-20 13:22:46,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-09-20 13:22:46,442 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:22:46,443 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 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] [2019-09-20 13:22:46,443 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:22:46,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:22:46,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1156488474, now seen corresponding path program 1 times [2019-09-20 13:22:46,444 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:22:46,444 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:22:46,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:46,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:22:46,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:46,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:22:46,757 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2019-09-20 13:22:46,757 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:22:46,757 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:22:46,759 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:22:46,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:22:46,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:22:46,760 INFO L87 Difference]: Start difference. First operand 1058 states and 1286 transitions. Second operand 3 states. [2019-09-20 13:22:46,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:22:46,924 INFO L93 Difference]: Finished difference Result 3012 states and 3659 transitions. [2019-09-20 13:22:46,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:22:46,925 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-09-20 13:22:46,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:22:46,938 INFO L225 Difference]: With dead ends: 3012 [2019-09-20 13:22:46,939 INFO L226 Difference]: Without dead ends: 2000 [2019-09-20 13:22:46,943 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:22:46,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2000 states. [2019-09-20 13:22:47,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2000 to 1994. [2019-09-20 13:22:47,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1994 states. [2019-09-20 13:22:47,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1994 states to 1994 states and 2422 transitions. [2019-09-20 13:22:47,023 INFO L78 Accepts]: Start accepts. Automaton has 1994 states and 2422 transitions. Word has length 180 [2019-09-20 13:22:47,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:22:47,024 INFO L475 AbstractCegarLoop]: Abstraction has 1994 states and 2422 transitions. [2019-09-20 13:22:47,024 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:22:47,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1994 states and 2422 transitions. [2019-09-20 13:22:47,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-09-20 13:22:47,027 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:22:47,027 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 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] [2019-09-20 13:22:47,027 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:22:47,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:22:47,028 INFO L82 PathProgramCache]: Analyzing trace with hash 872417033, now seen corresponding path program 1 times [2019-09-20 13:22:47,028 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:22:47,028 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:22:47,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:47,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:22:47,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:22:47,336 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2019-09-20 13:22:47,337 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:22:47,337 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:22:47,339 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:22:47,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:22:47,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:22:47,340 INFO L87 Difference]: Start difference. First operand 1994 states and 2422 transitions. Second operand 3 states. [2019-09-20 13:22:47,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:22:47,437 INFO L93 Difference]: Finished difference Result 2016 states and 2448 transitions. [2019-09-20 13:22:47,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:22:47,438 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2019-09-20 13:22:47,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:22:47,450 INFO L225 Difference]: With dead ends: 2016 [2019-09-20 13:22:47,451 INFO L226 Difference]: Without dead ends: 2005 [2019-09-20 13:22:47,452 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:22:47,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2005 states. [2019-09-20 13:22:47,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2005 to 1994. [2019-09-20 13:22:47,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1994 states. [2019-09-20 13:22:47,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1994 states to 1994 states and 2420 transitions. [2019-09-20 13:22:47,541 INFO L78 Accepts]: Start accepts. Automaton has 1994 states and 2420 transitions. Word has length 187 [2019-09-20 13:22:47,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:22:47,542 INFO L475 AbstractCegarLoop]: Abstraction has 1994 states and 2420 transitions. [2019-09-20 13:22:47,542 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:22:47,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1994 states and 2420 transitions. [2019-09-20 13:22:47,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-09-20 13:22:47,545 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:22:47,546 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 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] [2019-09-20 13:22:47,546 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:22:47,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:22:47,546 INFO L82 PathProgramCache]: Analyzing trace with hash 929675335, now seen corresponding path program 1 times [2019-09-20 13:22:47,547 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:22:47,547 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:22:47,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:47,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:22:47,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:47,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:22:47,774 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2019-09-20 13:22:47,774 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:22:47,774 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:22:47,775 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:22:47,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:22:47,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:22:47,776 INFO L87 Difference]: Start difference. First operand 1994 states and 2420 transitions. Second operand 3 states. [2019-09-20 13:22:47,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:22:47,844 INFO L93 Difference]: Finished difference Result 1996 states and 2421 transitions. [2019-09-20 13:22:47,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:22:47,844 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2019-09-20 13:22:47,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:22:47,856 INFO L225 Difference]: With dead ends: 1996 [2019-09-20 13:22:47,857 INFO L226 Difference]: Without dead ends: 1993 [2019-09-20 13:22:47,858 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:22:47,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1993 states. [2019-09-20 13:22:47,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1993 to 1993. [2019-09-20 13:22:47,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1993 states. [2019-09-20 13:22:47,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1993 states to 1993 states and 2418 transitions. [2019-09-20 13:22:47,951 INFO L78 Accepts]: Start accepts. Automaton has 1993 states and 2418 transitions. Word has length 187 [2019-09-20 13:22:47,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:22:47,952 INFO L475 AbstractCegarLoop]: Abstraction has 1993 states and 2418 transitions. [2019-09-20 13:22:47,952 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:22:47,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1993 states and 2418 transitions. [2019-09-20 13:22:47,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-09-20 13:22:47,955 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:22:47,955 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 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] [2019-09-20 13:22:47,955 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:22:47,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:22:47,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1245248025, now seen corresponding path program 1 times [2019-09-20 13:22:47,956 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:22:47,956 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:22:47,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:47,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:22:47,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:48,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:22:48,214 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2019-09-20 13:22:48,214 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:22:48,214 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:22:48,215 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:22:48,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:22:48,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:22:48,216 INFO L87 Difference]: Start difference. First operand 1993 states and 2418 transitions. Second operand 3 states. [2019-09-20 13:22:48,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:22:48,283 INFO L93 Difference]: Finished difference Result 1995 states and 2419 transitions. [2019-09-20 13:22:48,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:22:48,284 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2019-09-20 13:22:48,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:22:48,296 INFO L225 Difference]: With dead ends: 1995 [2019-09-20 13:22:48,296 INFO L226 Difference]: Without dead ends: 1992 [2019-09-20 13:22:48,298 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:22:48,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1992 states. [2019-09-20 13:22:48,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1992 to 1992. [2019-09-20 13:22:48,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1992 states. [2019-09-20 13:22:48,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1992 states to 1992 states and 2416 transitions. [2019-09-20 13:22:48,396 INFO L78 Accepts]: Start accepts. Automaton has 1992 states and 2416 transitions. Word has length 188 [2019-09-20 13:22:48,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:22:48,397 INFO L475 AbstractCegarLoop]: Abstraction has 1992 states and 2416 transitions. [2019-09-20 13:22:48,397 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:22:48,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1992 states and 2416 transitions. [2019-09-20 13:22:48,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-09-20 13:22:48,400 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:22:48,401 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 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] [2019-09-20 13:22:48,401 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:22:48,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:22:48,401 INFO L82 PathProgramCache]: Analyzing trace with hash 51609418, now seen corresponding path program 1 times [2019-09-20 13:22:48,401 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:22:48,402 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:22:48,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:48,410 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:22:48,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:22:48,595 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2019-09-20 13:22:48,596 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:22:48,596 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:22:48,596 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:22:48,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:22:48,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:22:48,597 INFO L87 Difference]: Start difference. First operand 1992 states and 2416 transitions. Second operand 3 states. [2019-09-20 13:22:48,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:22:48,672 INFO L93 Difference]: Finished difference Result 1994 states and 2417 transitions. [2019-09-20 13:22:48,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:22:48,673 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2019-09-20 13:22:48,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:22:48,685 INFO L225 Difference]: With dead ends: 1994 [2019-09-20 13:22:48,686 INFO L226 Difference]: Without dead ends: 1991 [2019-09-20 13:22:48,687 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:22:48,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2019-09-20 13:22:48,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1991. [2019-09-20 13:22:48,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1991 states. [2019-09-20 13:22:48,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1991 states to 1991 states and 2414 transitions. [2019-09-20 13:22:48,801 INFO L78 Accepts]: Start accepts. Automaton has 1991 states and 2414 transitions. Word has length 189 [2019-09-20 13:22:48,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:22:48,802 INFO L475 AbstractCegarLoop]: Abstraction has 1991 states and 2414 transitions. [2019-09-20 13:22:48,802 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:22:48,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states and 2414 transitions. [2019-09-20 13:22:48,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-09-20 13:22:48,805 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:22:48,806 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 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] [2019-09-20 13:22:48,806 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:22:48,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:22:48,806 INFO L82 PathProgramCache]: Analyzing trace with hash 611780794, now seen corresponding path program 1 times [2019-09-20 13:22:48,807 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:22:48,807 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:22:48,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:48,816 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:22:48,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:48,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:22:49,000 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2019-09-20 13:22:49,001 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:22:49,001 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:22:49,002 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:22:49,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:22:49,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:22:49,002 INFO L87 Difference]: Start difference. First operand 1991 states and 2414 transitions. Second operand 3 states. [2019-09-20 13:22:49,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:22:49,219 INFO L93 Difference]: Finished difference Result 5155 states and 6235 transitions. [2019-09-20 13:22:49,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:22:49,220 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2019-09-20 13:22:49,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:22:49,245 INFO L225 Difference]: With dead ends: 5155 [2019-09-20 13:22:49,245 INFO L226 Difference]: Without dead ends: 3218 [2019-09-20 13:22:49,255 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:22:49,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3218 states. [2019-09-20 13:22:49,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3218 to 3177. [2019-09-20 13:22:49,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3177 states. [2019-09-20 13:22:49,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3177 states to 3177 states and 3840 transitions. [2019-09-20 13:22:49,450 INFO L78 Accepts]: Start accepts. Automaton has 3177 states and 3840 transitions. Word has length 194 [2019-09-20 13:22:49,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:22:49,451 INFO L475 AbstractCegarLoop]: Abstraction has 3177 states and 3840 transitions. [2019-09-20 13:22:49,451 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:22:49,451 INFO L276 IsEmpty]: Start isEmpty. Operand 3177 states and 3840 transitions. [2019-09-20 13:22:49,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-09-20 13:22:49,453 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:22:49,453 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 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] [2019-09-20 13:22:49,454 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:22:49,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:22:49,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1599489354, now seen corresponding path program 1 times [2019-09-20 13:22:49,455 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:22:49,455 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:22:49,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:49,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:22:49,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:49,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:22:49,732 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2019-09-20 13:22:49,732 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:22:49,732 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:22:49,733 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:22:49,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:22:49,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:22:49,735 INFO L87 Difference]: Start difference. First operand 3177 states and 3840 transitions. Second operand 3 states. [2019-09-20 13:22:50,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:22:50,017 INFO L93 Difference]: Finished difference Result 8789 states and 10851 transitions. [2019-09-20 13:22:50,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:22:50,018 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-09-20 13:22:50,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:22:50,057 INFO L225 Difference]: With dead ends: 8789 [2019-09-20 13:22:50,058 INFO L226 Difference]: Without dead ends: 5648 [2019-09-20 13:22:50,074 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:22:50,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5648 states. [2019-09-20 13:22:50,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5648 to 5593. [2019-09-20 13:22:50,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5593 states. [2019-09-20 13:22:50,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5593 states to 5593 states and 6913 transitions. [2019-09-20 13:22:50,453 INFO L78 Accepts]: Start accepts. Automaton has 5593 states and 6913 transitions. Word has length 190 [2019-09-20 13:22:50,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:22:50,453 INFO L475 AbstractCegarLoop]: Abstraction has 5593 states and 6913 transitions. [2019-09-20 13:22:50,454 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:22:50,454 INFO L276 IsEmpty]: Start isEmpty. Operand 5593 states and 6913 transitions. [2019-09-20 13:22:50,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2019-09-20 13:22:50,458 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:22:50,458 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 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] [2019-09-20 13:22:50,459 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:22:50,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:22:50,459 INFO L82 PathProgramCache]: Analyzing trace with hash -866239076, now seen corresponding path program 1 times [2019-09-20 13:22:50,459 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:22:50,459 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:22:50,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:50,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:22:50,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:50,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:22:50,841 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2019-09-20 13:22:50,841 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:22:50,841 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:22:50,843 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:22:50,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:22:50,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:22:50,844 INFO L87 Difference]: Start difference. First operand 5593 states and 6913 transitions. Second operand 3 states. [2019-09-20 13:22:51,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:22:51,303 INFO L93 Difference]: Finished difference Result 13327 states and 16514 transitions. [2019-09-20 13:22:51,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:22:51,303 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 261 [2019-09-20 13:22:51,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:22:51,369 INFO L225 Difference]: With dead ends: 13327 [2019-09-20 13:22:51,370 INFO L226 Difference]: Without dead ends: 7788 [2019-09-20 13:22:51,394 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:22:51,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7788 states. [2019-09-20 13:22:51,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7788 to 7715. [2019-09-20 13:22:51,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7715 states. [2019-09-20 13:22:51,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7715 states to 7715 states and 9549 transitions. [2019-09-20 13:22:51,820 INFO L78 Accepts]: Start accepts. Automaton has 7715 states and 9549 transitions. Word has length 261 [2019-09-20 13:22:51,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:22:51,820 INFO L475 AbstractCegarLoop]: Abstraction has 7715 states and 9549 transitions. [2019-09-20 13:22:51,821 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:22:51,821 INFO L276 IsEmpty]: Start isEmpty. Operand 7715 states and 9549 transitions. [2019-09-20 13:22:51,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2019-09-20 13:22:51,827 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:22:51,827 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 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] [2019-09-20 13:22:51,828 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:22:51,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:22:51,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1115521749, now seen corresponding path program 1 times [2019-09-20 13:22:51,828 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:22:51,828 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:22:51,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:51,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:22:51,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:51,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:22:52,870 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2019-09-20 13:22:52,870 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:22:52,870 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:22:52,871 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:22:52,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:22:52,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:22:52,872 INFO L87 Difference]: Start difference. First operand 7715 states and 9549 transitions. Second operand 3 states. [2019-09-20 13:22:53,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:22:53,260 INFO L93 Difference]: Finished difference Result 15378 states and 19040 transitions. [2019-09-20 13:22:53,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:22:53,261 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 301 [2019-09-20 13:22:53,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:22:53,300 INFO L225 Difference]: With dead ends: 15378 [2019-09-20 13:22:53,300 INFO L226 Difference]: Without dead ends: 7717 [2019-09-20 13:22:53,330 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 [2019-09-20 13:22:53,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7717 states. [2019-09-20 13:22:53,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7717 to 7472. [2019-09-20 13:22:53,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7472 states. [2019-09-20 13:22:53,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7472 states to 7472 states and 9111 transitions. [2019-09-20 13:22:53,738 INFO L78 Accepts]: Start accepts. Automaton has 7472 states and 9111 transitions. Word has length 301 [2019-09-20 13:22:53,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:22:53,739 INFO L475 AbstractCegarLoop]: Abstraction has 7472 states and 9111 transitions. [2019-09-20 13:22:53,739 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:22:53,740 INFO L276 IsEmpty]: Start isEmpty. Operand 7472 states and 9111 transitions. [2019-09-20 13:22:53,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2019-09-20 13:22:53,752 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:22:53,753 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 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] [2019-09-20 13:22:53,753 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:22:53,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:22:53,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1796302967, now seen corresponding path program 1 times [2019-09-20 13:22:53,754 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:22:53,754 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:22:53,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:53,766 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:22:53,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:22:54,220 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2019-09-20 13:22:54,221 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:22:54,221 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:22:54,221 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:22:54,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:22:54,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:22:54,222 INFO L87 Difference]: Start difference. First operand 7472 states and 9111 transitions. Second operand 3 states. [2019-09-20 13:22:54,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:22:54,483 INFO L93 Difference]: Finished difference Result 14906 states and 18225 transitions. [2019-09-20 13:22:54,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:22:54,484 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 313 [2019-09-20 13:22:54,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:22:54,530 INFO L225 Difference]: With dead ends: 14906 [2019-09-20 13:22:54,530 INFO L226 Difference]: Without dead ends: 7488 [2019-09-20 13:22:54,554 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:22:54,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7488 states. [2019-09-20 13:22:54,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7488 to 7472. [2019-09-20 13:22:54,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7472 states. [2019-09-20 13:22:54,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7472 states to 7472 states and 9063 transitions. [2019-09-20 13:22:54,886 INFO L78 Accepts]: Start accepts. Automaton has 7472 states and 9063 transitions. Word has length 313 [2019-09-20 13:22:54,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:22:54,887 INFO L475 AbstractCegarLoop]: Abstraction has 7472 states and 9063 transitions. [2019-09-20 13:22:54,887 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:22:54,887 INFO L276 IsEmpty]: Start isEmpty. Operand 7472 states and 9063 transitions. [2019-09-20 13:22:54,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2019-09-20 13:22:54,893 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:22:54,894 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 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] [2019-09-20 13:22:54,894 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:22:54,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:22:54,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1437682316, now seen corresponding path program 1 times [2019-09-20 13:22:54,895 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:22:54,895 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:22:54,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:54,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:22:54,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:54,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:22:55,189 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2019-09-20 13:22:55,189 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:22:55,189 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:22:55,190 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:22:55,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:22:55,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:22:55,191 INFO L87 Difference]: Start difference. First operand 7472 states and 9063 transitions. Second operand 3 states. [2019-09-20 13:22:55,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:22:55,455 INFO L93 Difference]: Finished difference Result 11408 states and 13830 transitions. [2019-09-20 13:22:55,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:22:55,456 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 315 [2019-09-20 13:22:55,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:22:55,479 INFO L225 Difference]: With dead ends: 11408 [2019-09-20 13:22:55,479 INFO L226 Difference]: Without dead ends: 3984 [2019-09-20 13:22:55,510 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:22:55,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3984 states. [2019-09-20 13:22:55,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3984 to 3971. [2019-09-20 13:22:55,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3971 states. [2019-09-20 13:22:55,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3971 states to 3971 states and 4804 transitions. [2019-09-20 13:22:55,799 INFO L78 Accepts]: Start accepts. Automaton has 3971 states and 4804 transitions. Word has length 315 [2019-09-20 13:22:55,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:22:55,801 INFO L475 AbstractCegarLoop]: Abstraction has 3971 states and 4804 transitions. [2019-09-20 13:22:55,801 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:22:55,801 INFO L276 IsEmpty]: Start isEmpty. Operand 3971 states and 4804 transitions. [2019-09-20 13:22:55,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2019-09-20 13:22:55,812 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:22:55,813 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 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] [2019-09-20 13:22:55,813 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:22:55,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:22:55,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1764649778, now seen corresponding path program 1 times [2019-09-20 13:22:55,814 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:22:55,815 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:22:55,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:55,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:22:55,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:56,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:22:56,368 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2019-09-20 13:22:56,368 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:22:56,369 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:22:56,369 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:22:56,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:22:56,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:22:56,370 INFO L87 Difference]: Start difference. First operand 3971 states and 4804 transitions. Second operand 7 states. [2019-09-20 13:22:56,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:22:56,559 INFO L93 Difference]: Finished difference Result 3995 states and 4833 transitions. [2019-09-20 13:22:56,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:22:56,559 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 315 [2019-09-20 13:22:56,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:22:56,575 INFO L225 Difference]: With dead ends: 3995 [2019-09-20 13:22:56,575 INFO L226 Difference]: Without dead ends: 3969 [2019-09-20 13:22:56,579 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 [2019-09-20 13:22:56,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3969 states. [2019-09-20 13:22:56,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3969 to 3964. [2019-09-20 13:22:56,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3964 states. [2019-09-20 13:22:56,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3964 states to 3964 states and 4798 transitions. [2019-09-20 13:22:56,751 INFO L78 Accepts]: Start accepts. Automaton has 3964 states and 4798 transitions. Word has length 315 [2019-09-20 13:22:56,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:22:56,752 INFO L475 AbstractCegarLoop]: Abstraction has 3964 states and 4798 transitions. [2019-09-20 13:22:56,752 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:22:56,752 INFO L276 IsEmpty]: Start isEmpty. Operand 3964 states and 4798 transitions. [2019-09-20 13:22:56,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2019-09-20 13:22:56,760 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:22:56,760 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 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] [2019-09-20 13:22:56,760 INFO L418 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:22:56,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:22:56,761 INFO L82 PathProgramCache]: Analyzing trace with hash -359928462, now seen corresponding path program 1 times [2019-09-20 13:22:56,761 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:22:56,761 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:22:56,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:56,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:22:56,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:56,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:22:57,111 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2019-09-20 13:22:57,112 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:22:57,112 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:22:57,113 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:22:57,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:22:57,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:22:57,115 INFO L87 Difference]: Start difference. First operand 3964 states and 4798 transitions. Second operand 7 states. [2019-09-20 13:22:57,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:22:57,358 INFO L93 Difference]: Finished difference Result 7854 states and 9510 transitions. [2019-09-20 13:22:57,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:22:57,359 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 364 [2019-09-20 13:22:57,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:22:57,378 INFO L225 Difference]: With dead ends: 7854 [2019-09-20 13:22:57,379 INFO L226 Difference]: Without dead ends: 3959 [2019-09-20 13:22:57,401 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 [2019-09-20 13:22:57,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3959 states. [2019-09-20 13:22:57,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3959 to 3957. [2019-09-20 13:22:57,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3957 states. [2019-09-20 13:22:57,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3957 states to 3957 states and 4787 transitions. [2019-09-20 13:22:57,687 INFO L78 Accepts]: Start accepts. Automaton has 3957 states and 4787 transitions. Word has length 364 [2019-09-20 13:22:57,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:22:57,688 INFO L475 AbstractCegarLoop]: Abstraction has 3957 states and 4787 transitions. [2019-09-20 13:22:57,688 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:22:57,688 INFO L276 IsEmpty]: Start isEmpty. Operand 3957 states and 4787 transitions. [2019-09-20 13:22:57,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2019-09-20 13:22:57,700 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:22:57,700 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:22:57,701 INFO L418 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:22:57,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:22:57,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1450880785, now seen corresponding path program 1 times [2019-09-20 13:22:57,701 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:22:57,701 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:22:57,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:57,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:22:57,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:57,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:22:58,129 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2019-09-20 13:22:58,130 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:22:58,130 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:22:58,131 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:22:58,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:22:58,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:22:58,131 INFO L87 Difference]: Start difference. First operand 3957 states and 4787 transitions. Second operand 3 states. [2019-09-20 13:22:58,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:22:58,465 INFO L93 Difference]: Finished difference Result 9345 states and 11277 transitions. [2019-09-20 13:22:58,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:22:58,466 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 405 [2019-09-20 13:22:58,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:22:58,486 INFO L225 Difference]: With dead ends: 9345 [2019-09-20 13:22:58,486 INFO L226 Difference]: Without dead ends: 5457 [2019-09-20 13:22:58,500 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:22:58,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5457 states. [2019-09-20 13:22:58,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5457 to 5233. [2019-09-20 13:22:58,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5233 states. [2019-09-20 13:22:58,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 6267 transitions. [2019-09-20 13:22:58,717 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 6267 transitions. Word has length 405 [2019-09-20 13:22:58,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:22:58,718 INFO L475 AbstractCegarLoop]: Abstraction has 5233 states and 6267 transitions. [2019-09-20 13:22:58,718 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:22:58,718 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 6267 transitions. [2019-09-20 13:22:58,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2019-09-20 13:22:58,729 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:22:58,730 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:22:58,730 INFO L418 AbstractCegarLoop]: === Iteration 16 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:22:58,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:22:58,731 INFO L82 PathProgramCache]: Analyzing trace with hash -729698287, now seen corresponding path program 1 times [2019-09-20 13:22:58,731 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:22:58,731 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:22:58,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:58,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:22:58,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:22:59,200 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2019-09-20 13:22:59,203 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:22:59,203 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:22:59,204 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:22:59,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:22:59,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:22:59,205 INFO L87 Difference]: Start difference. First operand 5233 states and 6267 transitions. Second operand 7 states. [2019-09-20 13:22:59,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:22:59,426 INFO L93 Difference]: Finished difference Result 5271 states and 6307 transitions. [2019-09-20 13:22:59,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:22:59,427 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 404 [2019-09-20 13:22:59,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:22:59,448 INFO L225 Difference]: With dead ends: 5271 [2019-09-20 13:22:59,449 INFO L226 Difference]: Without dead ends: 5174 [2019-09-20 13:22:59,452 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 [2019-09-20 13:22:59,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5174 states. [2019-09-20 13:22:59,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5174 to 5150. [2019-09-20 13:22:59,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5150 states. [2019-09-20 13:22:59,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5150 states to 5150 states and 6150 transitions. [2019-09-20 13:22:59,771 INFO L78 Accepts]: Start accepts. Automaton has 5150 states and 6150 transitions. Word has length 404 [2019-09-20 13:22:59,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:22:59,772 INFO L475 AbstractCegarLoop]: Abstraction has 5150 states and 6150 transitions. [2019-09-20 13:22:59,773 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:22:59,773 INFO L276 IsEmpty]: Start isEmpty. Operand 5150 states and 6150 transitions. [2019-09-20 13:22:59,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2019-09-20 13:22:59,790 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:22:59,791 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:22:59,791 INFO L418 AbstractCegarLoop]: === Iteration 17 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:22:59,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:22:59,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1951491597, now seen corresponding path program 1 times [2019-09-20 13:22:59,792 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:22:59,792 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:22:59,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:59,799 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:22:59,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:22:59,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:23:00,197 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2019-09-20 13:23:00,198 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:23:00,198 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:23:00,199 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:23:00,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:23:00,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:23:00,200 INFO L87 Difference]: Start difference. First operand 5150 states and 6150 transitions. Second operand 7 states. [2019-09-20 13:23:00,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:23:00,362 INFO L93 Difference]: Finished difference Result 5202 states and 6202 transitions. [2019-09-20 13:23:00,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:23:00,363 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 421 [2019-09-20 13:23:00,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:23:00,381 INFO L225 Difference]: With dead ends: 5202 [2019-09-20 13:23:00,381 INFO L226 Difference]: Without dead ends: 4944 [2019-09-20 13:23:00,384 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 [2019-09-20 13:23:00,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4944 states. [2019-09-20 13:23:00,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4944 to 4932. [2019-09-20 13:23:00,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4932 states. [2019-09-20 13:23:00,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4932 states to 4932 states and 5885 transitions. [2019-09-20 13:23:00,569 INFO L78 Accepts]: Start accepts. Automaton has 4932 states and 5885 transitions. Word has length 421 [2019-09-20 13:23:00,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:23:00,570 INFO L475 AbstractCegarLoop]: Abstraction has 4932 states and 5885 transitions. [2019-09-20 13:23:00,570 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:23:00,570 INFO L276 IsEmpty]: Start isEmpty. Operand 4932 states and 5885 transitions. [2019-09-20 13:23:00,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2019-09-20 13:23:00,585 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:23:00,585 INFO L407 BasicCegarLoop]: trace histogram [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, 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] [2019-09-20 13:23:00,586 INFO L418 AbstractCegarLoop]: === Iteration 18 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:23:00,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:23:00,586 INFO L82 PathProgramCache]: Analyzing trace with hash -805556227, now seen corresponding path program 1 times [2019-09-20 13:23:00,586 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:23:00,586 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:23:00,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:23:00,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:23:00,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:23:00,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:23:00,965 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2019-09-20 13:23:00,966 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:23:00,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:23:00,967 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:23:00,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:23:00,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:23:00,967 INFO L87 Difference]: Start difference. First operand 4932 states and 5885 transitions. Second operand 7 states. [2019-09-20 13:23:01,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:23:01,230 INFO L93 Difference]: Finished difference Result 9852 states and 11794 transitions. [2019-09-20 13:23:01,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:23:01,231 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 421 [2019-09-20 13:23:01,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:23:01,254 INFO L225 Difference]: With dead ends: 9852 [2019-09-20 13:23:01,254 INFO L226 Difference]: Without dead ends: 4989 [2019-09-20 13:23:01,274 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 [2019-09-20 13:23:01,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4989 states. [2019-09-20 13:23:01,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4989 to 4965. [2019-09-20 13:23:01,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4965 states. [2019-09-20 13:23:01,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4965 states to 4965 states and 5942 transitions. [2019-09-20 13:23:01,535 INFO L78 Accepts]: Start accepts. Automaton has 4965 states and 5942 transitions. Word has length 421 [2019-09-20 13:23:01,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:23:01,536 INFO L475 AbstractCegarLoop]: Abstraction has 4965 states and 5942 transitions. [2019-09-20 13:23:01,536 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:23:01,537 INFO L276 IsEmpty]: Start isEmpty. Operand 4965 states and 5942 transitions. [2019-09-20 13:23:01,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2019-09-20 13:23:01,551 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:23:01,552 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:23:01,552 INFO L418 AbstractCegarLoop]: === Iteration 19 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:23:01,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:23:01,552 INFO L82 PathProgramCache]: Analyzing trace with hash -2036854807, now seen corresponding path program 1 times [2019-09-20 13:23:01,553 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:23:01,553 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:23:01,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:23:01,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:23:01,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:23:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:23:01,952 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2019-09-20 13:23:01,953 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:23:01,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:23:01,953 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:23:01,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:23:01,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:23:01,954 INFO L87 Difference]: Start difference. First operand 4965 states and 5942 transitions. Second operand 7 states. [2019-09-20 13:23:02,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:23:02,084 INFO L93 Difference]: Finished difference Result 5027 states and 6001 transitions. [2019-09-20 13:23:02,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:23:02,085 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 427 [2019-09-20 13:23:02,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:23:02,086 INFO L225 Difference]: With dead ends: 5027 [2019-09-20 13:23:02,086 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:23:02,094 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 [2019-09-20 13:23:02,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:23:02,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:23:02,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:23:02,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:23:02,096 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 427 [2019-09-20 13:23:02,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:23:02,098 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:23:02,098 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:23:02,098 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:23:02,098 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:23:02,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-20 13:23:06,048 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2019-09-20 13:23:06,333 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 34 [2019-09-20 13:23:06,556 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 23 [2019-09-20 13:23:06,816 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2019-09-20 13:23:07,040 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34