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/product-lines/minepump_spec4_product60.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:09:14,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:09:14,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:09:14,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:09:14,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:09:14,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:09:14,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:09:14,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:09:14,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:09:14,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:09:14,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:09:14,738 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:09:14,738 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:09:14,739 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:09:14,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:09:14,741 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:09:14,742 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:09:14,743 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:09:14,745 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:09:14,746 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:09:14,748 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:09:14,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:09:14,751 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:09:14,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:09:14,756 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:09:14,757 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:09:14,757 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:09:14,758 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:09:14,758 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:09:14,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:09:14,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:09:14,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:09:14,762 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:09:14,762 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:09:14,763 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:09:14,763 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:09:14,764 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:09:14,764 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:09:14,764 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:09:14,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:09:14,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:09:14,767 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-16 17:09:14,782 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:09:14,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:09:14,782 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:09:14,783 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:09:14,786 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:09:14,786 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:09:14,787 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:09:14,787 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:09:14,787 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:09:14,787 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:09:14,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:09:14,788 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:09:14,788 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:09:14,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:09:14,789 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:09:14,789 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:09:14,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:09:14,789 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:09:14,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:09:14,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:09:14,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:09:14,791 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:09:14,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:09:14,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:09:14,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:09:14,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:09:14,793 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:09:14,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:09:14,793 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:09:14,793 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:09:14,831 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:09:14,844 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:09:14,848 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:09:14,851 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:09:14,851 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:09:14,852 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product60.cil.c [2019-09-16 17:09:14,918 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba403179f/c54929b6e4da4755bb164c6c2298a72d/FLAG1e95ebabd [2019-09-16 17:09:15,459 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:09:15,460 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product60.cil.c [2019-09-16 17:09:15,472 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba403179f/c54929b6e4da4755bb164c6c2298a72d/FLAG1e95ebabd [2019-09-16 17:09:15,745 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba403179f/c54929b6e4da4755bb164c6c2298a72d [2019-09-16 17:09:15,754 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:09:15,756 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:09:15,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:09:15,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:09:15,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:09:15,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:09:15" (1/1) ... [2019-09-16 17:09:15,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42e30681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:15, skipping insertion in model container [2019-09-16 17:09:15,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:09:15" (1/1) ... [2019-09-16 17:09:15,772 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:09:15,834 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:09:16,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:09:16,356 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:09:16,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:09:16,505 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:09:16,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:16 WrapperNode [2019-09-16 17:09:16,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:09:16,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:09:16,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:09:16,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:09:16,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:16" (1/1) ... [2019-09-16 17:09:16,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:16" (1/1) ... [2019-09-16 17:09:16,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:16" (1/1) ... [2019-09-16 17:09:16,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:16" (1/1) ... [2019-09-16 17:09:16,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:16" (1/1) ... [2019-09-16 17:09:16,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:16" (1/1) ... [2019-09-16 17:09:16,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:16" (1/1) ... [2019-09-16 17:09:16,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:09:16,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:09:16,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:09:16,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:09:16,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:09:16,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:09:16,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:09:16,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:09:16,667 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:09:16,667 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:09:16,667 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:09:16,668 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:09:16,668 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:09:16,668 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:09:16,668 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:09:16,668 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:09:16,668 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:09:16,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:09:16,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:09:16,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:09:16,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:09:16,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:09:16,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:09:16,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-16 17:09:16,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:09:16,670 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:09:16,670 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:09:16,670 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-16 17:09:16,670 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:09:16,670 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:09:16,671 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:09:16,671 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:09:16,671 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:09:16,671 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:09:16,671 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:09:16,671 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-16 17:09:16,672 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-16 17:09:16,672 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-16 17:09:16,672 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-16 17:09:16,672 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:09:16,672 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:09:16,672 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:09:16,672 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:09:16,673 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:09:16,673 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:09:16,673 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:09:16,673 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-16 17:09:16,673 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-16 17:09:16,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:09:16,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:09:16,674 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:09:16,674 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:09:16,674 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:09:16,674 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:09:16,674 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:09:16,675 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:09:16,675 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:09:16,675 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:09:16,675 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:09:16,675 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:09:16,675 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:09:16,676 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:09:16,676 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:09:16,676 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:09:16,676 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:09:16,676 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:09:16,676 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:09:16,676 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:09:16,677 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:09:16,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:09:16,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:09:16,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:09:16,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:09:16,677 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:09:16,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:09:16,678 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:09:16,678 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:09:16,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:09:16,678 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:09:16,678 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:09:16,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:09:16,679 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:09:16,679 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:09:16,679 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:09:16,679 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:09:16,679 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-16 17:09:16,680 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:09:16,680 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:09:16,680 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:09:16,680 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-16 17:09:16,680 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-16 17:09:16,680 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:09:16,681 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:09:16,681 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-16 17:09:16,681 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-16 17:09:16,681 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:09:16,681 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:09:16,681 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-16 17:09:16,682 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-16 17:09:16,682 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-16 17:09:16,682 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:09:16,682 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:09:16,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:09:16,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:09:16,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:09:17,766 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:09:17,766 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:09:17,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:09:17 BoogieIcfgContainer [2019-09-16 17:09:17,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:09:17,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:09:17,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:09:17,773 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:09:17,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:09:15" (1/3) ... [2019-09-16 17:09:17,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d9954d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:09:17, skipping insertion in model container [2019-09-16 17:09:17,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:16" (2/3) ... [2019-09-16 17:09:17,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d9954d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:09:17, skipping insertion in model container [2019-09-16 17:09:17,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:09:17" (3/3) ... [2019-09-16 17:09:17,777 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product60.cil.c [2019-09-16 17:09:17,787 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:09:17,800 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:09:17,818 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:09:17,856 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:09:17,856 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:09:17,857 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:09:17,858 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:09:17,858 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:09:17,858 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:09:17,858 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:09:17,860 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:09:17,892 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states. [2019-09-16 17:09:17,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-16 17:09:17,910 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:17,911 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:17,915 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:17,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:17,922 INFO L82 PathProgramCache]: Analyzing trace with hash 2134554421, now seen corresponding path program 1 times [2019-09-16 17:09:17,924 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:17,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:17,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:17,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:17,985 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:18,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:18,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:18,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:18,304 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:09:18,304 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:18,309 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:09:18,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:09:18,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:09:18,327 INFO L87 Difference]: Start difference. First operand 196 states. Second operand 2 states. [2019-09-16 17:09:18,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:18,356 INFO L93 Difference]: Finished difference Result 164 states and 190 transitions. [2019-09-16 17:09:18,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:09:18,358 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-16 17:09:18,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:18,371 INFO L225 Difference]: With dead ends: 164 [2019-09-16 17:09:18,371 INFO L226 Difference]: Without dead ends: 153 [2019-09-16 17:09:18,373 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:09:18,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-09-16 17:09:18,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2019-09-16 17:09:18,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-09-16 17:09:18,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 178 transitions. [2019-09-16 17:09:18,431 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 178 transitions. Word has length 46 [2019-09-16 17:09:18,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:18,431 INFO L475 AbstractCegarLoop]: Abstraction has 153 states and 178 transitions. [2019-09-16 17:09:18,431 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:09:18,431 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 178 transitions. [2019-09-16 17:09:18,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-16 17:09:18,435 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:18,435 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:18,435 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:18,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:18,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1258335028, now seen corresponding path program 1 times [2019-09-16 17:09:18,436 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:18,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:18,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:18,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:18,439 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:18,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:18,553 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:18,553 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:09:18,554 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:18,555 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:09:18,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:09:18,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:09:18,556 INFO L87 Difference]: Start difference. First operand 153 states and 178 transitions. Second operand 3 states. [2019-09-16 17:09:18,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:18,574 INFO L93 Difference]: Finished difference Result 144 states and 166 transitions. [2019-09-16 17:09:18,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:09:18,575 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-16 17:09:18,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:18,577 INFO L225 Difference]: With dead ends: 144 [2019-09-16 17:09:18,577 INFO L226 Difference]: Without dead ends: 144 [2019-09-16 17:09:18,578 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:09:18,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-09-16 17:09:18,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2019-09-16 17:09:18,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-09-16 17:09:18,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 166 transitions. [2019-09-16 17:09:18,593 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 166 transitions. Word has length 47 [2019-09-16 17:09:18,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:18,593 INFO L475 AbstractCegarLoop]: Abstraction has 144 states and 166 transitions. [2019-09-16 17:09:18,593 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:09:18,593 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 166 transitions. [2019-09-16 17:09:18,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:09:18,596 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:18,596 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:18,596 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:18,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:18,597 INFO L82 PathProgramCache]: Analyzing trace with hash 598975815, now seen corresponding path program 1 times [2019-09-16 17:09:18,597 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:18,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:18,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:18,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:18,600 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:18,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:18,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:18,812 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:18,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:09:18,812 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:18,813 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:09:18,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:09:18,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:09:18,814 INFO L87 Difference]: Start difference. First operand 144 states and 166 transitions. Second operand 7 states. [2019-09-16 17:09:19,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:19,376 INFO L93 Difference]: Finished difference Result 314 states and 372 transitions. [2019-09-16 17:09:19,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:09:19,378 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-16 17:09:19,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:19,385 INFO L225 Difference]: With dead ends: 314 [2019-09-16 17:09:19,385 INFO L226 Difference]: Without dead ends: 314 [2019-09-16 17:09:19,388 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:09:19,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2019-09-16 17:09:19,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 302. [2019-09-16 17:09:19,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2019-09-16 17:09:19,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 360 transitions. [2019-09-16 17:09:19,450 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 360 transitions. Word has length 52 [2019-09-16 17:09:19,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:19,453 INFO L475 AbstractCegarLoop]: Abstraction has 302 states and 360 transitions. [2019-09-16 17:09:19,454 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:09:19,454 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 360 transitions. [2019-09-16 17:09:19,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-16 17:09:19,461 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:19,461 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:19,461 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:19,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:19,491 INFO L82 PathProgramCache]: Analyzing trace with hash 301540465, now seen corresponding path program 1 times [2019-09-16 17:09:19,491 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:19,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:19,494 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:19,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:19,494 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:19,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:19,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:19,673 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:19,673 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-16 17:09:19,674 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:19,674 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-16 17:09:19,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-16 17:09:19,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:09:19,675 INFO L87 Difference]: Start difference. First operand 302 states and 360 transitions. Second operand 10 states. [2019-09-16 17:09:20,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:20,451 INFO L93 Difference]: Finished difference Result 810 states and 1005 transitions. [2019-09-16 17:09:20,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-16 17:09:20,451 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2019-09-16 17:09:20,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:20,461 INFO L225 Difference]: With dead ends: 810 [2019-09-16 17:09:20,461 INFO L226 Difference]: Without dead ends: 810 [2019-09-16 17:09:20,462 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-09-16 17:09:20,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2019-09-16 17:09:20,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 798. [2019-09-16 17:09:20,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 798 states. [2019-09-16 17:09:20,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 984 transitions. [2019-09-16 17:09:20,524 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 984 transitions. Word has length 57 [2019-09-16 17:09:20,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:20,525 INFO L475 AbstractCegarLoop]: Abstraction has 798 states and 984 transitions. [2019-09-16 17:09:20,525 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-16 17:09:20,525 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 984 transitions. [2019-09-16 17:09:20,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-16 17:09:20,530 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:20,531 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:20,531 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:20,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:20,531 INFO L82 PathProgramCache]: Analyzing trace with hash -1216503305, now seen corresponding path program 1 times [2019-09-16 17:09:20,532 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:20,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:20,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:20,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:20,535 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:20,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:20,644 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:20,645 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:09:20,645 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:20,647 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:09:20,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:09:20,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:09:20,648 INFO L87 Difference]: Start difference. First operand 798 states and 984 transitions. Second operand 4 states. [2019-09-16 17:09:21,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:21,041 INFO L93 Difference]: Finished difference Result 1203 states and 1561 transitions. [2019-09-16 17:09:21,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:09:21,042 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2019-09-16 17:09:21,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:21,050 INFO L225 Difference]: With dead ends: 1203 [2019-09-16 17:09:21,051 INFO L226 Difference]: Without dead ends: 1203 [2019-09-16 17:09:21,051 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:09:21,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2019-09-16 17:09:21,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 1065. [2019-09-16 17:09:21,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1065 states. [2019-09-16 17:09:21,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1322 transitions. [2019-09-16 17:09:21,112 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1322 transitions. Word has length 61 [2019-09-16 17:09:21,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:21,113 INFO L475 AbstractCegarLoop]: Abstraction has 1065 states and 1322 transitions. [2019-09-16 17:09:21,113 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:09:21,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1322 transitions. [2019-09-16 17:09:21,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-16 17:09:21,117 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:21,118 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:21,118 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:21,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:21,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1663970326, now seen corresponding path program 1 times [2019-09-16 17:09:21,119 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:21,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:21,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:21,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:21,121 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:21,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:21,250 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-09-16 17:09:21,251 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:09:21,251 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-16 17:09:21,252 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 90 with the following transitions: [2019-09-16 17:09:21,254 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [54], [57], [59], [62], [68], [70], [71], [75], [78], [107], [109], [110], [122], [164], [173], [177], [181], [184], [189], [195], [197], [203], [206], [209], [241], [242], [259], [266], [269], [328], [332], [333], [336], [337], [338], [431], [432], [442], [450], [451], [452], [453], [454], [456], [457], [458], [459], [460], [461], [462], [463], [464], [508], [509], [514], [515], [516], [517], [530], [531], [546], [554], [555], [556] [2019-09-16 17:09:21,296 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-16 17:09:21,296 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-16 17:09:21,372 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-16 17:09:21,374 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 69 root evaluator evaluations with a maximum evaluation depth of 0. Performed 69 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-09-16 17:09:21,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:21,378 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-16 17:09:21,419 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-16 17:09:21,419 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-16 17:09:21,423 INFO L420 sIntCurrentIteration]: We unified 88 AI predicates to 88 [2019-09-16 17:09:21,423 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-16 17:09:21,424 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-16 17:09:21,424 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-16 17:09:21,424 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:21,425 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:09:21,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:09:21,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:09:21,426 INFO L87 Difference]: Start difference. First operand 1065 states and 1322 transitions. Second operand 2 states. [2019-09-16 17:09:21,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:21,426 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-16 17:09:21,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:09:21,427 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 89 [2019-09-16 17:09:21,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:21,427 INFO L225 Difference]: With dead ends: 2 [2019-09-16 17:09:21,427 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:09:21,427 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:09:21,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:09:21,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:09:21,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:09:21,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:09:21,428 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2019-09-16 17:09:21,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:21,429 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:09:21,429 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:09:21,429 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:09:21,429 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:09:21,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:09:21 BoogieIcfgContainer [2019-09-16 17:09:21,435 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:09:21,437 INFO L168 Benchmark]: Toolchain (without parser) took 5680.72 ms. Allocated memory was 131.6 MB in the beginning and 267.9 MB in the end (delta: 136.3 MB). Free memory was 86.4 MB in the beginning and 163.2 MB in the end (delta: -76.8 MB). Peak memory consumption was 59.5 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:21,438 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 131.6 MB. Free memory was 105.8 MB in the beginning and 105.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:09:21,439 INFO L168 Benchmark]: CACSL2BoogieTranslator took 749.57 ms. Allocated memory was 131.6 MB in the beginning and 198.2 MB in the end (delta: 66.6 MB). Free memory was 86.2 MB in the beginning and 162.2 MB in the end (delta: -76.0 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:21,440 INFO L168 Benchmark]: Boogie Preprocessor took 96.10 ms. Allocated memory is still 198.2 MB. Free memory was 162.2 MB in the beginning and 157.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:21,441 INFO L168 Benchmark]: RCFGBuilder took 1165.15 ms. Allocated memory was 198.2 MB in the beginning and 219.7 MB in the end (delta: 21.5 MB). Free memory was 157.7 MB in the beginning and 187.3 MB in the end (delta: -29.6 MB). Peak memory consumption was 91.7 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:21,442 INFO L168 Benchmark]: TraceAbstraction took 3665.68 ms. Allocated memory was 219.7 MB in the beginning and 267.9 MB in the end (delta: 48.2 MB). Free memory was 187.3 MB in the beginning and 163.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 72.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:21,452 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 131.6 MB. Free memory was 105.8 MB in the beginning and 105.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 749.57 ms. Allocated memory was 131.6 MB in the beginning and 198.2 MB in the end (delta: 66.6 MB). Free memory was 86.2 MB in the beginning and 162.2 MB in the end (delta: -76.0 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.10 ms. Allocated memory is still 198.2 MB. Free memory was 162.2 MB in the beginning and 157.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1165.15 ms. Allocated memory was 198.2 MB in the beginning and 219.7 MB in the end (delta: 21.5 MB). Free memory was 157.7 MB in the beginning and 187.3 MB in the end (delta: -29.6 MB). Peak memory consumption was 91.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3665.68 ms. Allocated memory was 219.7 MB in the beginning and 267.9 MB in the end (delta: 48.2 MB). Free memory was 187.3 MB in the beginning and 163.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 72.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 578]: 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 43 procedures, 252 locations, 1 error locations. SAFE Result, 3.5s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 918 SDtfs, 763 SDslu, 2123 SDs, 0 SdLazy, 807 SolverSat, 142 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1065occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 1.0795454545454546 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 162 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 352 NumberOfCodeBlocks, 352 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 346 ConstructedInterpolants, 0 QuantifiedInterpolants, 43640 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 21/24 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...