java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:44:56,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:44:56,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:44:56,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:44:56,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:44:56,575 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:44:56,576 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:44:56,578 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:44:56,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:44:56,580 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:44:56,581 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:44:56,582 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:44:56,583 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:44:56,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:44:56,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:44:56,586 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:44:56,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:44:56,587 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:44:56,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:44:56,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:44:56,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:44:56,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:44:56,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:44:56,596 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:44:56,598 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:44:56,599 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:44:56,599 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:44:56,600 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:44:56,600 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:44:56,601 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:44:56,602 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:44:56,602 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:44:56,603 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:44:56,604 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:44:56,605 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:44:56,605 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:44:56,606 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:44:56,606 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:44:56,606 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:44:56,607 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:44:56,608 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:44:56,608 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:44:56,623 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:44:56,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:44:56,624 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:44:56,624 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:44:56,625 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:44:56,625 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:44:56,625 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:44:56,625 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:44:56,626 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:44:56,626 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:44:56,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:44:56,627 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:44:56,627 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:44:56,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:44:56,627 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:44:56,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:44:56,628 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:44:56,628 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:44:56,628 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:44:56,628 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:44:56,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:44:56,629 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:44:56,629 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:44:56,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:44:56,629 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:44:56,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:44:56,630 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:44:56,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:44:56,630 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:44:56,630 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:44:56,658 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:44:56,671 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:44:56,674 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:44:56,676 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:44:56,676 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:44:56,677 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2019-09-20 13:44:56,741 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ca3021eb/9979ae1ce5fe446c9e65ad2a5d872387/FLAG3db4a68e2 [2019-09-20 13:44:57,504 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:44:57,506 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2019-09-20 13:44:57,534 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ca3021eb/9979ae1ce5fe446c9e65ad2a5d872387/FLAG3db4a68e2 [2019-09-20 13:44:57,587 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ca3021eb/9979ae1ce5fe446c9e65ad2a5d872387 [2019-09-20 13:44:57,599 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:44:57,601 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:44:57,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:44:57,606 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:44:57,609 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:44:57,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:44:57" (1/1) ... [2019-09-20 13:44:57,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8fe3e7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:57, skipping insertion in model container [2019-09-20 13:44:57,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:44:57" (1/1) ... [2019-09-20 13:44:57,620 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:44:57,723 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:44:58,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:44:58,975 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:44:59,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:44:59,411 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:44:59,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:59 WrapperNode [2019-09-20 13:44:59,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:44:59,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:44:59,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:44:59,413 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:44:59,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:59" (1/1) ... [2019-09-20 13:44:59,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:59" (1/1) ... [2019-09-20 13:44:59,507 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:59" (1/1) ... [2019-09-20 13:44:59,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:59" (1/1) ... [2019-09-20 13:44:59,614 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:59" (1/1) ... [2019-09-20 13:44:59,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:59" (1/1) ... [2019-09-20 13:44:59,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:59" (1/1) ... [2019-09-20 13:44:59,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:44:59,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:44:59,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:44:59,677 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:44:59,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:59" (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 13:44:59,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:44:59,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:44:59,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-09-20 13:44:59,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-09-20 13:44:59,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2019-09-20 13:44:59,756 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-09-20 13:44:59,757 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-09-20 13:44:59,757 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2019-09-20 13:44:59,757 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-09-20 13:44:59,757 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_and_test [2019-09-20 13:44:59,758 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2019-09-20 13:44:59,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-20 13:44:59,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-09-20 13:44:59,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-09-20 13:44:59,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-09-20 13:44:59,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-09-20 13:44:59,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-20 13:44:59,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-09-20 13:44:59,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-20 13:44:59,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-20 13:44:59,762 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2019-09-20 13:44:59,762 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2019-09-20 13:44:59,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-09-20 13:44:59,763 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-09-20 13:44:59,764 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-09-20 13:44:59,764 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2019-09-20 13:44:59,764 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2019-09-20 13:44:59,765 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2019-09-20 13:44:59,765 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2019-09-20 13:44:59,765 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-09-20 13:44:59,765 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2019-09-20 13:44:59,766 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-09-20 13:44:59,766 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-09-20 13:44:59,766 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_write [2019-09-20 13:44:59,766 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_get_drvdata [2019-09-20 13:44:59,767 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_set_drvdata [2019-09-20 13:44:59,767 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_pause_rx [2019-09-20 13:44:59,767 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_continue_rx [2019-09-20 13:44:59,768 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_fasync [2019-09-20 13:44:59,768 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_locate [2019-09-20 13:44:59,768 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_open [2019-09-20 13:44:59,768 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_free [2019-09-20 13:44:59,769 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_release [2019-09-20 13:44:59,769 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_fetch_byte [2019-09-20 13:44:59,769 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_read [2019-09-20 13:44:59,769 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_write [2019-09-20 13:44:59,769 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_poll [2019-09-20 13:44:59,769 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_interrupt [2019-09-20 13:44:59,770 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_connect [2019-09-20 13:44:59,770 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_reconnect [2019-09-20 13:44:59,770 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_hangup [2019-09-20 13:44:59,770 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_disconnect [2019-09-20 13:44:59,770 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_drv_init [2019-09-20 13:44:59,771 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_drv_exit [2019-09-20 13:44:59,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serio_driver_1 [2019-09-20 13:44:59,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2019-09-20 13:44:59,771 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:44:59,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2019-09-20 13:44:59,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_6 [2019-09-20 13:44:59,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2019-09-20 13:44:59,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2019-09-20 13:44:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_9 [2019-09-20 13:44:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_10 [2019-09-20 13:44:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-09-20 13:44:59,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_12 [2019-09-20 13:44:59,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2019-09-20 13:44:59,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_14 [2019-09-20 13:44:59,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_15 [2019-09-20 13:44:59,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_16 [2019-09-20 13:44:59,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_17 [2019-09-20 13:44:59,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_register_18 [2019-09-20 13:44:59,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_register_19 [2019-09-20 13:44:59,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_deregister_20 [2019-09-20 13:44:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_21 [2019-09-20 13:44:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_22 [2019-09-20 13:44:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___serio_register_driver_23 [2019-09-20 13:44:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serio_unregister_driver_24 [2019-09-20 13:44:59,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-20 13:44:59,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2019-09-20 13:44:59,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-09-20 13:44:59,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-09-20 13:44:59,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-09-20 13:44:59,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-09-20 13:44:59,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-09-20 13:44:59,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-09-20 13:44:59,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2019-09-20 13:44:59,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-09-20 13:44:59,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-09-20 13:44:59,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-09-20 13:44:59,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-09-20 13:44:59,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-09-20 13:44:59,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-09-20 13:44:59,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-09-20 13:44:59,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-09-20 13:44:59,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-09-20 13:44:59,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-09-20 13:44:59,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-09-20 13:44:59,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-09-20 13:44:59,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-09-20 13:44:59,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-09-20 13:44:59,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-09-20 13:44:59,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2019-09-20 13:44:59,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2019-09-20 13:44:59,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2019-09-20 13:44:59,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2019-09-20 13:44:59,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-09-20 13:44:59,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-09-20 13:44:59,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-09-20 13:44:59,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-09-20 13:44:59,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-09-20 13:44:59,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-09-20 13:44:59,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-09-20 13:44:59,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2019-09-20 13:44:59,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2019-09-20 13:44:59,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-09-20 13:44:59,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2019-09-20 13:44:59,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2019-09-20 13:44:59,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_serio_raw_mutex [2019-09-20 13:44:59,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_serio_raw_mutex [2019-09-20 13:44:59,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_serio_raw_mutex [2019-09-20 13:44:59,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_serio_raw_mutex [2019-09-20 13:44:59,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_serio_raw_mutex [2019-09-20 13:44:59,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_serio_raw_mutex [2019-09-20 13:44:59,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_serio_raw_mutex [2019-09-20 13:44:59,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_serio_raw_mutex [2019-09-20 13:44:59,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_serio_raw_mutex [2019-09-20 13:44:59,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_serio_raw_mutex [2019-09-20 13:44:59,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-20 13:44:59,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2019-09-20 13:44:59,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-09-20 13:44:59,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-09-20 13:44:59,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2019-09-20 13:44:59,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-09-20 13:44:59,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2019-09-20 13:44:59,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __serio_register_driver [2019-09-20 13:44:59,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-09-20 13:44:59,839 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-09-20 13:44:59,840 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2019-09-20 13:44:59,841 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2019-09-20 13:44:59,842 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-09-20 13:44:59,843 INFO L138 BoogieDeclarations]: Found implementation of procedure fasync_helper [2019-09-20 13:44:59,843 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-09-20 13:44:59,843 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device [2019-09-20 13:44:59,843 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_fasync [2019-09-20 13:44:59,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-20 13:44:59,843 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-09-20 13:44:59,843 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2019-09-20 13:44:59,844 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2019-09-20 13:44:59,844 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-09-20 13:44:59,844 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2019-09-20 13:44:59,845 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_killable [2019-09-20 13:44:59,846 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-09-20 13:44:59,846 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-09-20 13:44:59,846 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2019-09-20 13:44:59,846 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2019-09-20 13:44:59,846 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2019-09-20 13:44:59,846 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-09-20 13:44:59,846 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_close [2019-09-20 13:44:59,846 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_open [2019-09-20 13:44:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_unregister_driver [2019-09-20 13:44:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-09-20 13:44:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-20 13:44:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-20 13:44:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-20 13:44:59,848 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-09-20 13:44:59,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:44:59,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-20 13:44:59,848 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2019-09-20 13:44:59,849 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2019-09-20 13:44:59,849 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-09-20 13:44:59,849 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-09-20 13:44:59,849 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-09-20 13:44:59,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:44:59,850 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-09-20 13:44:59,850 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-09-20 13:44:59,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:44:59,850 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2019-09-20 13:44:59,850 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-09-20 13:44:59,851 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2019-09-20 13:44:59,851 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-20 13:44:59,851 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-09-20 13:44:59,851 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2019-09-20 13:44:59,851 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-09-20 13:44:59,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:44:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_and_test [2019-09-20 13:44:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2019-09-20 13:44:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-09-20 13:44:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_10 [2019-09-20 13:44:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-09-20 13:44:59,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_6 [2019-09-20 13:44:59,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2019-09-20 13:44:59,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-09-20 13:44:59,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2019-09-20 13:44:59,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_15 [2019-09-20 13:44:59,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_17 [2019-09-20 13:44:59,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_22 [2019-09-20 13:44:59,854 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:44:59,854 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-20 13:44:59,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:44:59,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-20 13:44:59,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-20 13:44:59,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 13:44:59,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-20 13:44:59,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:44:59,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-09-20 13:44:59,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-09-20 13:44:59,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-09-20 13:44:59,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-09-20 13:44:59,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-20 13:44:59,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-09-20 13:44:59,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-20 13:44:59,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-09-20 13:44:59,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-20 13:44:59,856 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2019-09-20 13:44:59,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_12 [2019-09-20 13:44:59,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_14 [2019-09-20 13:44:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_killable [2019-09-20 13:44:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_16 [2019-09-20 13:44:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-09-20 13:44:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2019-09-20 13:44:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2019-09-20 13:44:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_9 [2019-09-20 13:44:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_21 [2019-09-20 13:44:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2019-09-20 13:44:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-09-20 13:44:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-09-20 13:44:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-09-20 13:44:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-09-20 13:44:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-09-20 13:44:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-09-20 13:44:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2019-09-20 13:44:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_serio_raw_mutex [2019-09-20 13:44:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_serio_raw_mutex [2019-09-20 13:44:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_serio_raw_mutex [2019-09-20 13:44:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2019-09-20 13:44:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2019-09-20 13:44:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2019-09-20 13:44:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2019-09-20 13:44:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-09-20 13:44:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-09-20 13:44:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2019-09-20 13:44:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-09-20 13:44:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-09-20 13:44:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-20 13:44:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-09-20 13:44:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-09-20 13:44:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-09-20 13:44:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serio_driver_1 [2019-09-20 13:44:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2019-09-20 13:44:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2019-09-20 13:44:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2019-09-20 13:44:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:44:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2019-09-20 13:44:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-09-20 13:44:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2019-09-20 13:44:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-09-20 13:44:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:44:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure fasync_helper [2019-09-20 13:44:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure kill_fasync [2019-09-20 13:44:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-09-20 13:44:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2019-09-20 13:44:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-09-20 13:44:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-09-20 13:44:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-09-20 13:44:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure get_device [2019-09-20 13:44:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2019-09-20 13:44:59,869 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-09-20 13:44:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-09-20 13:44:59,872 INFO L130 BoogieDeclarations]: Found specification of procedure serio_open [2019-09-20 13:44:59,872 INFO L130 BoogieDeclarations]: Found specification of procedure serio_close [2019-09-20 13:44:59,872 INFO L130 BoogieDeclarations]: Found specification of procedure __serio_register_driver [2019-09-20 13:44:59,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___serio_register_driver_23 [2019-09-20 13:44:59,877 INFO L130 BoogieDeclarations]: Found specification of procedure serio_unregister_driver [2019-09-20 13:44:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serio_unregister_driver_24 [2019-09-20 13:44:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure serio_write [2019-09-20 13:44:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2019-09-20 13:44:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure serio_get_drvdata [2019-09-20 13:44:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure serio_set_drvdata [2019-09-20 13:44:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure serio_pause_rx [2019-09-20 13:44:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure serio_continue_rx [2019-09-20 13:44:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2019-09-20 13:44:59,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_register_18 [2019-09-20 13:44:59,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_register_19 [2019-09-20 13:44:59,881 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2019-09-20 13:44:59,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_deregister_20 [2019-09-20 13:44:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_fasync [2019-09-20 13:44:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_locate [2019-09-20 13:44:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_open [2019-09-20 13:44:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_free [2019-09-20 13:44:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_release [2019-09-20 13:44:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_fetch_byte [2019-09-20 13:44:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_read [2019-09-20 13:44:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:44:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_write [2019-09-20 13:44:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_poll [2019-09-20 13:44:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_interrupt [2019-09-20 13:44:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_connect [2019-09-20 13:44:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_reconnect [2019-09-20 13:44:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_hangup [2019-09-20 13:44:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_disconnect [2019-09-20 13:44:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_drv_init [2019-09-20 13:44:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_drv_exit [2019-09-20 13:44:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-20 13:44:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-20 13:44:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:44:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-20 13:44:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2019-09-20 13:44:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-09-20 13:44:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-09-20 13:44:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-09-20 13:44:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-09-20 13:44:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-09-20 13:44:59,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-09-20 13:44:59,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-09-20 13:44:59,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-09-20 13:44:59,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-09-20 13:44:59,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-09-20 13:44:59,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-09-20 13:44:59,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-09-20 13:44:59,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-09-20 13:44:59,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-09-20 13:44:59,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-09-20 13:44:59,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-09-20 13:44:59,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-09-20 13:44:59,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-09-20 13:44:59,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2019-09-20 13:44:59,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2019-09-20 13:44:59,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2019-09-20 13:44:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2019-09-20 13:44:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-09-20 13:44:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-09-20 13:44:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-09-20 13:44:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-09-20 13:44:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2019-09-20 13:44:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2019-09-20 13:44:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-09-20 13:44:59,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2019-09-20 13:44:59,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_serio_raw_mutex [2019-09-20 13:44:59,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_serio_raw_mutex [2019-09-20 13:44:59,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_serio_raw_mutex [2019-09-20 13:44:59,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_serio_raw_mutex [2019-09-20 13:44:59,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_serio_raw_mutex [2019-09-20 13:44:59,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_serio_raw_mutex [2019-09-20 13:44:59,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_serio_raw_mutex [2019-09-20 13:44:59,890 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-20 13:44:59,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-09-20 13:44:59,891 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:44:59,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:44:59,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:44:59,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-20 13:44:59,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:45:00,750 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-20 13:45:02,531 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:45:02,531 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-20 13:45:02,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:45:02 BoogieIcfgContainer [2019-09-20 13:45:02,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:45:02,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:45:02,537 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:45:02,540 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:45:02,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:44:57" (1/3) ... [2019-09-20 13:45:02,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69751f0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:45:02, skipping insertion in model container [2019-09-20 13:45:02,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:44:59" (2/3) ... [2019-09-20 13:45:02,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69751f0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:45:02, skipping insertion in model container [2019-09-20 13:45:02,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:45:02" (3/3) ... [2019-09-20 13:45:02,546 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 13:45:02,561 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:45:02,577 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:45:02,599 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:45:02,636 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:45:02,637 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:45:02,637 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:45:02,637 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:45:02,637 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:45:02,637 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:45:02,638 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:45:02,638 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:45:02,681 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states. [2019-09-20 13:45:02,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-09-20 13:45:02,721 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:45:02,724 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:45:02,727 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:45:02,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:45:02,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1733405938, now seen corresponding path program 1 times [2019-09-20 13:45:02,736 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:45:02,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:02,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:45:02,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:02,821 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:45:03,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:45:03,636 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2019-09-20 13:45:03,638 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:45:03,639 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:45:03,639 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:45:03,646 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:45:03,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:45:03,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:45:03,665 INFO L87 Difference]: Start difference. First operand 955 states. Second operand 3 states. [2019-09-20 13:45:03,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:45:03,936 INFO L93 Difference]: Finished difference Result 1122 states and 1362 transitions. [2019-09-20 13:45:03,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:45:03,941 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2019-09-20 13:45:03,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:45:03,972 INFO L225 Difference]: With dead ends: 1122 [2019-09-20 13:45:03,972 INFO L226 Difference]: Without dead ends: 1099 [2019-09-20 13:45:03,974 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 13:45:03,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2019-09-20 13:45:04,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 1060. [2019-09-20 13:45:04,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1060 states. [2019-09-20 13:45:04,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1290 transitions. [2019-09-20 13:45:04,138 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1290 transitions. Word has length 184 [2019-09-20 13:45:04,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:45:04,140 INFO L475 AbstractCegarLoop]: Abstraction has 1060 states and 1290 transitions. [2019-09-20 13:45:04,140 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:45:04,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1290 transitions. [2019-09-20 13:45:04,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-09-20 13:45:04,144 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:45:04,144 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:45:04,145 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:45:04,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:45:04,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1940161896, now seen corresponding path program 1 times [2019-09-20 13:45:04,145 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:45:04,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:04,152 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:45:04,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:04,153 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:45:04,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:45:04,389 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2019-09-20 13:45:04,390 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:45:04,390 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:45:04,390 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:45:04,404 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:45:04,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:45:04,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:45:04,407 INFO L87 Difference]: Start difference. First operand 1060 states and 1290 transitions. Second operand 3 states. [2019-09-20 13:45:04,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:45:04,545 INFO L93 Difference]: Finished difference Result 2004 states and 2435 transitions. [2019-09-20 13:45:04,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:45:04,545 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2019-09-20 13:45:04,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:45:04,561 INFO L225 Difference]: With dead ends: 2004 [2019-09-20 13:45:04,561 INFO L226 Difference]: Without dead ends: 2004 [2019-09-20 13:45:04,562 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 13:45:04,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2004 states. [2019-09-20 13:45:04,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2004 to 1998. [2019-09-20 13:45:04,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1998 states. [2019-09-20 13:45:04,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1998 states to 1998 states and 2430 transitions. [2019-09-20 13:45:04,650 INFO L78 Accepts]: Start accepts. Automaton has 1998 states and 2430 transitions. Word has length 186 [2019-09-20 13:45:04,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:45:04,651 INFO L475 AbstractCegarLoop]: Abstraction has 1998 states and 2430 transitions. [2019-09-20 13:45:04,651 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:45:04,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1998 states and 2430 transitions. [2019-09-20 13:45:04,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-09-20 13:45:04,654 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:45:04,654 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:45:04,654 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:45:04,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:45:04,655 INFO L82 PathProgramCache]: Analyzing trace with hash -116844323, now seen corresponding path program 1 times [2019-09-20 13:45:04,655 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:45:04,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:04,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:45:04,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:04,663 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:45:04,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:45:05,041 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2019-09-20 13:45:05,042 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:45:05,042 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:45:05,042 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:45:05,043 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:45:05,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:45:05,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:45:05,044 INFO L87 Difference]: Start difference. First operand 1998 states and 2430 transitions. Second operand 3 states. [2019-09-20 13:45:05,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:45:05,114 INFO L93 Difference]: Finished difference Result 2009 states and 2441 transitions. [2019-09-20 13:45:05,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:45:05,115 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2019-09-20 13:45:05,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:45:05,129 INFO L225 Difference]: With dead ends: 2009 [2019-09-20 13:45:05,130 INFO L226 Difference]: Without dead ends: 2009 [2019-09-20 13:45:05,131 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 13:45:05,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2009 states. [2019-09-20 13:45:05,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2009 to 1998. [2019-09-20 13:45:05,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1998 states. [2019-09-20 13:45:05,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1998 states to 1998 states and 2428 transitions. [2019-09-20 13:45:05,213 INFO L78 Accepts]: Start accepts. Automaton has 1998 states and 2428 transitions. Word has length 193 [2019-09-20 13:45:05,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:45:05,215 INFO L475 AbstractCegarLoop]: Abstraction has 1998 states and 2428 transitions. [2019-09-20 13:45:05,215 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:45:05,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1998 states and 2428 transitions. [2019-09-20 13:45:05,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-09-20 13:45:05,219 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:45:05,219 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:45:05,220 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:45:05,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:45:05,220 INFO L82 PathProgramCache]: Analyzing trace with hash -59586021, now seen corresponding path program 1 times [2019-09-20 13:45:05,220 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:45:05,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:05,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:45:05,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:05,229 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:45:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:45:05,541 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2019-09-20 13:45:05,542 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:45:05,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:45:05,542 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:45:05,543 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:45:05,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:45:05,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:45:05,544 INFO L87 Difference]: Start difference. First operand 1998 states and 2428 transitions. Second operand 3 states. [2019-09-20 13:45:05,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:45:05,577 INFO L93 Difference]: Finished difference Result 1997 states and 2426 transitions. [2019-09-20 13:45:05,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:45:05,577 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2019-09-20 13:45:05,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:45:05,593 INFO L225 Difference]: With dead ends: 1997 [2019-09-20 13:45:05,593 INFO L226 Difference]: Without dead ends: 1997 [2019-09-20 13:45:05,594 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 13:45:05,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2019-09-20 13:45:05,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1997. [2019-09-20 13:45:05,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1997 states. [2019-09-20 13:45:05,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1997 states to 1997 states and 2426 transitions. [2019-09-20 13:45:05,667 INFO L78 Accepts]: Start accepts. Automaton has 1997 states and 2426 transitions. Word has length 193 [2019-09-20 13:45:05,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:45:05,668 INFO L475 AbstractCegarLoop]: Abstraction has 1997 states and 2426 transitions. [2019-09-20 13:45:05,668 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:45:05,668 INFO L276 IsEmpty]: Start isEmpty. Operand 1997 states and 2426 transitions. [2019-09-20 13:45:05,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-09-20 13:45:05,672 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:45:05,674 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:45:05,675 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:45:05,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:45:05,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1847578983, now seen corresponding path program 1 times [2019-09-20 13:45:05,675 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:45:05,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:05,682 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:45:05,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:05,682 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:45:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:45:06,002 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2019-09-20 13:45:06,002 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:45:06,003 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:45:06,003 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:45:06,003 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:45:06,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:45:06,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:45:06,004 INFO L87 Difference]: Start difference. First operand 1997 states and 2426 transitions. Second operand 3 states. [2019-09-20 13:45:06,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:45:06,034 INFO L93 Difference]: Finished difference Result 1996 states and 2424 transitions. [2019-09-20 13:45:06,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:45:06,035 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2019-09-20 13:45:06,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:45:06,047 INFO L225 Difference]: With dead ends: 1996 [2019-09-20 13:45:06,047 INFO L226 Difference]: Without dead ends: 1996 [2019-09-20 13:45:06,048 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 13:45:06,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1996 states. [2019-09-20 13:45:06,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1996 to 1996. [2019-09-20 13:45:06,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1996 states. [2019-09-20 13:45:06,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1996 states to 1996 states and 2424 transitions. [2019-09-20 13:45:06,111 INFO L78 Accepts]: Start accepts. Automaton has 1996 states and 2424 transitions. Word has length 194 [2019-09-20 13:45:06,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:45:06,112 INFO L475 AbstractCegarLoop]: Abstraction has 1996 states and 2424 transitions. [2019-09-20 13:45:06,112 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:45:06,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1996 states and 2424 transitions. [2019-09-20 13:45:06,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-09-20 13:45:06,116 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:45:06,116 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:45:06,116 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:45:06,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:45:06,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1440781090, now seen corresponding path program 1 times [2019-09-20 13:45:06,117 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:45:06,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:06,127 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:45:06,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:06,127 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:45:06,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:45:06,370 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2019-09-20 13:45:06,370 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:45:06,370 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:45:06,371 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:45:06,371 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:45:06,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:45:06,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:45:06,372 INFO L87 Difference]: Start difference. First operand 1996 states and 2424 transitions. Second operand 3 states. [2019-09-20 13:45:06,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:45:06,408 INFO L93 Difference]: Finished difference Result 1995 states and 2422 transitions. [2019-09-20 13:45:06,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:45:06,409 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 195 [2019-09-20 13:45:06,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:45:06,422 INFO L225 Difference]: With dead ends: 1995 [2019-09-20 13:45:06,422 INFO L226 Difference]: Without dead ends: 1995 [2019-09-20 13:45:06,422 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 13:45:06,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1995 states. [2019-09-20 13:45:06,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1995 to 1995. [2019-09-20 13:45:06,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1995 states. [2019-09-20 13:45:06,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 2422 transitions. [2019-09-20 13:45:06,510 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 2422 transitions. Word has length 195 [2019-09-20 13:45:06,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:45:06,511 INFO L475 AbstractCegarLoop]: Abstraction has 1995 states and 2422 transitions. [2019-09-20 13:45:06,511 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:45:06,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 2422 transitions. [2019-09-20 13:45:06,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-09-20 13:45:06,515 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:45:06,516 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:45:06,516 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:45:06,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:45:06,516 INFO L82 PathProgramCache]: Analyzing trace with hash 239338668, now seen corresponding path program 1 times [2019-09-20 13:45:06,516 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:45:06,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:06,529 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:45:06,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:06,530 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:45:06,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:45:06,752 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2019-09-20 13:45:06,752 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:45:06,752 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:45:06,752 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:45:06,753 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:45:06,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:45:06,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:45:06,754 INFO L87 Difference]: Start difference. First operand 1995 states and 2422 transitions. Second operand 3 states. [2019-09-20 13:45:06,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:45:06,849 INFO L93 Difference]: Finished difference Result 3222 states and 3892 transitions. [2019-09-20 13:45:06,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:45:06,850 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 200 [2019-09-20 13:45:06,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:45:06,870 INFO L225 Difference]: With dead ends: 3222 [2019-09-20 13:45:06,870 INFO L226 Difference]: Without dead ends: 3222 [2019-09-20 13:45:06,872 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 13:45:06,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3222 states. [2019-09-20 13:45:07,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3222 to 3181. [2019-09-20 13:45:07,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3181 states. [2019-09-20 13:45:07,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 3848 transitions. [2019-09-20 13:45:07,052 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 3848 transitions. Word has length 200 [2019-09-20 13:45:07,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:45:07,053 INFO L475 AbstractCegarLoop]: Abstraction has 3181 states and 3848 transitions. [2019-09-20 13:45:07,053 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:45:07,053 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 3848 transitions. [2019-09-20 13:45:07,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-09-20 13:45:07,056 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:45:07,057 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:45:07,057 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:45:07,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:45:07,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1714943428, now seen corresponding path program 1 times [2019-09-20 13:45:07,058 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:45:07,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:07,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:45:07,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:07,065 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:45:07,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:45:07,313 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2019-09-20 13:45:07,314 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:45:07,314 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:45:07,314 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:45:07,315 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:45:07,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:45:07,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:45:07,316 INFO L87 Difference]: Start difference. First operand 3181 states and 3848 transitions. Second operand 3 states. [2019-09-20 13:45:07,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:45:07,402 INFO L93 Difference]: Finished difference Result 5672 states and 7007 transitions. [2019-09-20 13:45:07,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:45:07,403 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2019-09-20 13:45:07,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:45:07,436 INFO L225 Difference]: With dead ends: 5672 [2019-09-20 13:45:07,436 INFO L226 Difference]: Without dead ends: 5654 [2019-09-20 13:45:07,437 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 13:45:07,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5654 states. [2019-09-20 13:45:07,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5654 to 5599. [2019-09-20 13:45:07,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5599 states. [2019-09-20 13:45:07,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5599 states to 5599 states and 6925 transitions. [2019-09-20 13:45:07,620 INFO L78 Accepts]: Start accepts. Automaton has 5599 states and 6925 transitions. Word has length 196 [2019-09-20 13:45:07,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:45:07,622 INFO L475 AbstractCegarLoop]: Abstraction has 5599 states and 6925 transitions. [2019-09-20 13:45:07,622 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:45:07,622 INFO L276 IsEmpty]: Start isEmpty. Operand 5599 states and 6925 transitions. [2019-09-20 13:45:07,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2019-09-20 13:45:07,627 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:45:07,627 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:45:07,627 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:45:07,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:45:07,628 INFO L82 PathProgramCache]: Analyzing trace with hash -129752437, now seen corresponding path program 1 times [2019-09-20 13:45:07,628 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:45:07,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:07,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:45:07,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:07,636 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:45:07,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:45:08,031 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2019-09-20 13:45:08,034 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:45:08,034 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:45:08,034 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:45:08,035 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:45:08,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:45:08,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:45:08,035 INFO L87 Difference]: Start difference. First operand 5599 states and 6925 transitions. Second operand 3 states. [2019-09-20 13:45:08,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:45:08,210 INFO L93 Difference]: Finished difference Result 7794 states and 9640 transitions. [2019-09-20 13:45:08,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:45:08,211 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 268 [2019-09-20 13:45:08,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:45:08,269 INFO L225 Difference]: With dead ends: 7794 [2019-09-20 13:45:08,269 INFO L226 Difference]: Without dead ends: 7794 [2019-09-20 13:45:08,270 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 13:45:08,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7794 states. [2019-09-20 13:45:08,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7794 to 7721. [2019-09-20 13:45:08,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7721 states. [2019-09-20 13:45:08,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7721 states to 7721 states and 9561 transitions. [2019-09-20 13:45:08,493 INFO L78 Accepts]: Start accepts. Automaton has 7721 states and 9561 transitions. Word has length 268 [2019-09-20 13:45:08,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:45:08,493 INFO L475 AbstractCegarLoop]: Abstraction has 7721 states and 9561 transitions. [2019-09-20 13:45:08,493 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:45:08,494 INFO L276 IsEmpty]: Start isEmpty. Operand 7721 states and 9561 transitions. [2019-09-20 13:45:08,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2019-09-20 13:45:08,499 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:45:08,500 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:45:08,500 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:45:08,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:45:08,501 INFO L82 PathProgramCache]: Analyzing trace with hash 508410820, now seen corresponding path program 1 times [2019-09-20 13:45:08,501 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:45:08,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:08,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:45:08,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:08,508 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:45:08,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:45:08,816 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 449 trivial. 0 not checked. [2019-09-20 13:45:08,816 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:45:08,816 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:45:08,817 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:45:08,818 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:45:08,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:45:08,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:45:08,819 INFO L87 Difference]: Start difference. First operand 7721 states and 9561 transitions. Second operand 3 states. [2019-09-20 13:45:09,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:45:09,020 INFO L93 Difference]: Finished difference Result 7723 states and 9372 transitions. [2019-09-20 13:45:09,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:45:09,021 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 308 [2019-09-20 13:45:09,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:45:09,068 INFO L225 Difference]: With dead ends: 7723 [2019-09-20 13:45:09,068 INFO L226 Difference]: Without dead ends: 7723 [2019-09-20 13:45:09,069 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 13:45:09,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7723 states. [2019-09-20 13:45:09,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7723 to 7478. [2019-09-20 13:45:09,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7478 states. [2019-09-20 13:45:09,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7478 states to 7478 states and 9123 transitions. [2019-09-20 13:45:09,355 INFO L78 Accepts]: Start accepts. Automaton has 7478 states and 9123 transitions. Word has length 308 [2019-09-20 13:45:09,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:45:09,357 INFO L475 AbstractCegarLoop]: Abstraction has 7478 states and 9123 transitions. [2019-09-20 13:45:09,357 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:45:09,357 INFO L276 IsEmpty]: Start isEmpty. Operand 7478 states and 9123 transitions. [2019-09-20 13:45:09,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2019-09-20 13:45:09,370 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:45:09,370 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:45:09,371 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:45:09,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:45:09,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1228208050, now seen corresponding path program 1 times [2019-09-20 13:45:09,372 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:45:09,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:09,383 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:45:09,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:09,384 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:45:09,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:45:09,829 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 443 trivial. 0 not checked. [2019-09-20 13:45:09,829 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:45:09,829 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:45:09,830 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:45:09,830 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:45:09,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:45:09,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:45:09,831 INFO L87 Difference]: Start difference. First operand 7478 states and 9123 transitions. Second operand 3 states. [2019-09-20 13:45:09,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:45:09,901 INFO L93 Difference]: Finished difference Result 7494 states and 9091 transitions. [2019-09-20 13:45:09,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:45:09,901 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 320 [2019-09-20 13:45:09,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:45:09,950 INFO L225 Difference]: With dead ends: 7494 [2019-09-20 13:45:09,950 INFO L226 Difference]: Without dead ends: 7494 [2019-09-20 13:45:09,951 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 13:45:09,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7494 states. [2019-09-20 13:45:10,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7494 to 7478. [2019-09-20 13:45:10,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7478 states. [2019-09-20 13:45:10,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7478 states to 7478 states and 9075 transitions. [2019-09-20 13:45:10,181 INFO L78 Accepts]: Start accepts. Automaton has 7478 states and 9075 transitions. Word has length 320 [2019-09-20 13:45:10,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:45:10,182 INFO L475 AbstractCegarLoop]: Abstraction has 7478 states and 9075 transitions. [2019-09-20 13:45:10,182 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:45:10,182 INFO L276 IsEmpty]: Start isEmpty. Operand 7478 states and 9075 transitions. [2019-09-20 13:45:10,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2019-09-20 13:45:10,189 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:45:10,190 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:45:10,190 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:45:10,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:45:10,191 INFO L82 PathProgramCache]: Analyzing trace with hash -307943945, now seen corresponding path program 1 times [2019-09-20 13:45:10,191 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:45:10,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:10,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:45:10,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:10,200 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:45:10,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:45:10,613 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 443 trivial. 0 not checked. [2019-09-20 13:45:10,614 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:45:10,614 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:45:10,614 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:45:10,615 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:45:10,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:45:10,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:45:10,616 INFO L87 Difference]: Start difference. First operand 7478 states and 9075 transitions. Second operand 7 states. [2019-09-20 13:45:10,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:45:10,780 INFO L93 Difference]: Finished difference Result 7486 states and 9091 transitions. [2019-09-20 13:45:10,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:45:10,781 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 322 [2019-09-20 13:45:10,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:45:10,807 INFO L225 Difference]: With dead ends: 7486 [2019-09-20 13:45:10,807 INFO L226 Difference]: Without dead ends: 7486 [2019-09-20 13:45:10,808 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 13:45:10,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7486 states. [2019-09-20 13:45:10,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7486 to 7476. [2019-09-20 13:45:10,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7476 states. [2019-09-20 13:45:10,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7476 states to 7476 states and 9075 transitions. [2019-09-20 13:45:10,983 INFO L78 Accepts]: Start accepts. Automaton has 7476 states and 9075 transitions. Word has length 322 [2019-09-20 13:45:10,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:45:10,984 INFO L475 AbstractCegarLoop]: Abstraction has 7476 states and 9075 transitions. [2019-09-20 13:45:10,984 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:45:10,984 INFO L276 IsEmpty]: Start isEmpty. Operand 7476 states and 9075 transitions. [2019-09-20 13:45:10,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2019-09-20 13:45:10,993 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:45:10,994 INFO L407 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:45:10,994 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:45:10,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:45:10,995 INFO L82 PathProgramCache]: Analyzing trace with hash -262257937, now seen corresponding path program 1 times [2019-09-20 13:45:10,995 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:45:11,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:11,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:45:11,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:11,003 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:45:11,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:45:11,364 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 453 trivial. 0 not checked. [2019-09-20 13:45:11,365 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:45:11,365 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:45:11,365 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:45:11,366 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:45:11,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:45:11,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:45:11,368 INFO L87 Difference]: Start difference. First operand 7476 states and 9075 transitions. Second operand 7 states. [2019-09-20 13:45:11,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:45:11,486 INFO L93 Difference]: Finished difference Result 7466 states and 9059 transitions. [2019-09-20 13:45:11,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:45:11,486 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 371 [2019-09-20 13:45:11,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:45:11,514 INFO L225 Difference]: With dead ends: 7466 [2019-09-20 13:45:11,514 INFO L226 Difference]: Without dead ends: 7466 [2019-09-20 13:45:11,515 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 13:45:11,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7466 states. [2019-09-20 13:45:11,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7466 to 7462. [2019-09-20 13:45:11,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7462 states. [2019-09-20 13:45:11,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7462 states to 7462 states and 9053 transitions. [2019-09-20 13:45:11,692 INFO L78 Accepts]: Start accepts. Automaton has 7462 states and 9053 transitions. Word has length 371 [2019-09-20 13:45:11,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:45:11,693 INFO L475 AbstractCegarLoop]: Abstraction has 7462 states and 9053 transitions. [2019-09-20 13:45:11,693 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:45:11,694 INFO L276 IsEmpty]: Start isEmpty. Operand 7462 states and 9053 transitions. [2019-09-20 13:45:11,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2019-09-20 13:45:11,714 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:45:11,715 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:45:11,715 INFO L418 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:45:11,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:45:11,715 INFO L82 PathProgramCache]: Analyzing trace with hash 319209690, now seen corresponding path program 1 times [2019-09-20 13:45:11,716 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:45:11,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:11,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:45:11,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:11,724 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:45:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:45:12,288 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2019-09-20 13:45:12,288 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:45:12,288 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:45:12,288 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:45:12,289 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:45:12,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:45:12,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:45:12,290 INFO L87 Difference]: Start difference. First operand 7462 states and 9053 transitions. Second operand 7 states. [2019-09-20 13:45:12,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:45:12,391 INFO L93 Difference]: Finished difference Result 7368 states and 8922 transitions. [2019-09-20 13:45:12,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:45:12,391 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 413 [2019-09-20 13:45:12,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:45:12,428 INFO L225 Difference]: With dead ends: 7368 [2019-09-20 13:45:12,429 INFO L226 Difference]: Without dead ends: 7368 [2019-09-20 13:45:12,429 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 13:45:12,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7368 states. [2019-09-20 13:45:12,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7368 to 7344. [2019-09-20 13:45:12,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7344 states. [2019-09-20 13:45:12,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7344 states to 7344 states and 8886 transitions. [2019-09-20 13:45:12,633 INFO L78 Accepts]: Start accepts. Automaton has 7344 states and 8886 transitions. Word has length 413 [2019-09-20 13:45:12,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:45:12,634 INFO L475 AbstractCegarLoop]: Abstraction has 7344 states and 8886 transitions. [2019-09-20 13:45:12,634 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:45:12,634 INFO L276 IsEmpty]: Start isEmpty. Operand 7344 states and 8886 transitions. [2019-09-20 13:45:12,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2019-09-20 13:45:12,653 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:45:12,653 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:45:12,654 INFO L418 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:45:12,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:45:12,654 INFO L82 PathProgramCache]: Analyzing trace with hash -125957590, now seen corresponding path program 1 times [2019-09-20 13:45:12,654 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:45:12,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:12,661 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:45:12,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:12,661 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:45:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:45:13,129 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2019-09-20 13:45:13,130 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:45:13,130 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:45:13,130 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:45:13,131 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:45:13,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:45:13,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:45:13,131 INFO L87 Difference]: Start difference. First operand 7344 states and 8886 transitions. Second operand 7 states. [2019-09-20 13:45:13,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:45:13,239 INFO L93 Difference]: Finished difference Result 7398 states and 8970 transitions. [2019-09-20 13:45:13,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:45:13,240 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 423 [2019-09-20 13:45:13,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:45:13,268 INFO L225 Difference]: With dead ends: 7398 [2019-09-20 13:45:13,268 INFO L226 Difference]: Without dead ends: 7398 [2019-09-20 13:45:13,269 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 13:45:13,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7398 states. [2019-09-20 13:45:13,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7398 to 7374. [2019-09-20 13:45:13,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7374 states. [2019-09-20 13:45:13,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7374 states to 7374 states and 8934 transitions. [2019-09-20 13:45:13,504 INFO L78 Accepts]: Start accepts. Automaton has 7374 states and 8934 transitions. Word has length 423 [2019-09-20 13:45:13,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:45:13,505 INFO L475 AbstractCegarLoop]: Abstraction has 7374 states and 8934 transitions. [2019-09-20 13:45:13,505 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:45:13,505 INFO L276 IsEmpty]: Start isEmpty. Operand 7374 states and 8934 transitions. [2019-09-20 13:45:13,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2019-09-20 13:45:13,527 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:45:13,528 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:45:13,528 INFO L418 AbstractCegarLoop]: === Iteration 16 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:45:13,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:45:13,528 INFO L82 PathProgramCache]: Analyzing trace with hash -867254320, now seen corresponding path program 1 times [2019-09-20 13:45:13,529 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:45:13,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:13,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:45:13,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:13,535 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:45:13,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:45:13,952 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2019-09-20 13:45:13,952 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:45:13,952 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:45:13,952 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:45:13,953 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:45:13,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:45:13,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:45:13,954 INFO L87 Difference]: Start difference. First operand 7374 states and 8934 transitions. Second operand 7 states. [2019-09-20 13:45:14,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:45:14,032 INFO L93 Difference]: Finished difference Result 6975 states and 8429 transitions. [2019-09-20 13:45:14,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:45:14,033 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 430 [2019-09-20 13:45:14,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:45:14,055 INFO L225 Difference]: With dead ends: 6975 [2019-09-20 13:45:14,056 INFO L226 Difference]: Without dead ends: 6975 [2019-09-20 13:45:14,056 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 13:45:14,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6975 states. [2019-09-20 13:45:14,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6975 to 6951. [2019-09-20 13:45:14,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6951 states. [2019-09-20 13:45:14,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6951 states to 6951 states and 8399 transitions. [2019-09-20 13:45:14,207 INFO L78 Accepts]: Start accepts. Automaton has 6951 states and 8399 transitions. Word has length 430 [2019-09-20 13:45:14,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:45:14,208 INFO L475 AbstractCegarLoop]: Abstraction has 6951 states and 8399 transitions. [2019-09-20 13:45:14,208 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:45:14,208 INFO L276 IsEmpty]: Start isEmpty. Operand 6951 states and 8399 transitions. [2019-09-20 13:45:14,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2019-09-20 13:45:14,228 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:45:14,228 INFO L407 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:45:14,229 INFO L418 AbstractCegarLoop]: === Iteration 17 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:45:14,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:45:14,229 INFO L82 PathProgramCache]: Analyzing trace with hash -244983352, now seen corresponding path program 1 times [2019-09-20 13:45:14,229 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:45:14,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:14,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:45:14,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:45:14,236 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:45:14,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:45:14,746 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2019-09-20 13:45:14,747 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:45:14,747 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:45:14,747 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:45:14,749 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:45:14,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:45:14,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:45:14,750 INFO L87 Difference]: Start difference. First operand 6951 states and 8399 transitions. Second operand 7 states. [2019-09-20 13:45:14,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:45:14,852 INFO L93 Difference]: Finished difference Result 4824 states and 5688 transitions. [2019-09-20 13:45:14,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:45:14,853 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 436 [2019-09-20 13:45:14,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:45:14,854 INFO L225 Difference]: With dead ends: 4824 [2019-09-20 13:45:14,854 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:45:14,854 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 13:45:14,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:45:14,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:45:14,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:45:14,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:45:14,855 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 436 [2019-09-20 13:45:14,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:45:14,856 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:45:14,856 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:45:14,856 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:45:14,857 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:45:14,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:45:14 BoogieIcfgContainer [2019-09-20 13:45:14,865 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:45:14,871 INFO L168 Benchmark]: Toolchain (without parser) took 17266.74 ms. Allocated memory was 138.9 MB in the beginning and 886.0 MB in the end (delta: 747.1 MB). Free memory was 79.6 MB in the beginning and 42.8 MB in the end (delta: 36.8 MB). Peak memory consumption was 783.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:45:14,873 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 104.8 MB in the beginning and 104.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-09-20 13:45:14,881 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1806.47 ms. Allocated memory was 138.9 MB in the beginning and 224.9 MB in the end (delta: 86.0 MB). Free memory was 79.4 MB in the beginning and 100.4 MB in the end (delta: -21.0 MB). Peak memory consumption was 72.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:45:14,882 INFO L168 Benchmark]: Boogie Preprocessor took 263.68 ms. Allocated memory is still 224.9 MB. Free memory was 100.4 MB in the beginning and 86.7 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:45:14,883 INFO L168 Benchmark]: RCFGBuilder took 2858.58 ms. Allocated memory was 224.9 MB in the beginning and 279.4 MB in the end (delta: 54.5 MB). Free memory was 86.7 MB in the beginning and 101.9 MB in the end (delta: -15.2 MB). Peak memory consumption was 72.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:45:14,884 INFO L168 Benchmark]: TraceAbstraction took 12328.95 ms. Allocated memory was 279.4 MB in the beginning and 886.0 MB in the end (delta: 606.6 MB). Free memory was 101.9 MB in the beginning and 42.8 MB in the end (delta: 59.1 MB). Peak memory consumption was 665.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:45:14,898 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 104.8 MB in the beginning and 104.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1806.47 ms. Allocated memory was 138.9 MB in the beginning and 224.9 MB in the end (delta: 86.0 MB). Free memory was 79.4 MB in the beginning and 100.4 MB in the end (delta: -21.0 MB). Peak memory consumption was 72.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 263.68 ms. Allocated memory is still 224.9 MB. Free memory was 100.4 MB in the beginning and 86.7 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2858.58 ms. Allocated memory was 224.9 MB in the beginning and 279.4 MB in the end (delta: 54.5 MB). Free memory was 86.7 MB in the beginning and 101.9 MB in the end (delta: -15.2 MB). Peak memory consumption was 72.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12328.95 ms. Allocated memory was 279.4 MB in the beginning and 886.0 MB in the end (delta: 606.6 MB). Free memory was 101.9 MB in the beginning and 42.8 MB in the end (delta: 59.1 MB). Peak memory consumption was 665.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4592]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 165 procedures, 1097 locations, 1 error locations. SAFE Result, 12.2s OverallTime, 17 OverallIterations, 9 TraceHistogramMax, 2.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 17442 SDtfs, 7910 SDslu, 32595 SDs, 0 SdLazy, 322 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7721occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.5s AutomataMinimizationTime, 17 MinimizatonAttempts, 572 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 4832 NumberOfCodeBlocks, 4832 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 4815 ConstructedInterpolants, 0 QuantifiedInterpolants, 1666323 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 7702/7702 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...