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_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:50:21,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:50:21,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:50:21,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:50:21,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:50:21,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:50:21,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:50:21,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:50:21,954 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:50:21,955 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:50:21,956 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:50:21,958 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:50:21,958 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:50:21,959 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:50:21,960 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:50:21,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:50:21,962 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:50:21,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:50:21,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:50:21,967 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:50:21,969 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:50:21,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:50:21,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:50:21,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:50:21,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:50:21,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:50:21,974 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:50:21,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:50:21,976 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:50:21,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:50:21,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:50:21,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:50:21,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:50:21,979 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:50:21,980 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:50:21,981 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:50:21,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:50:21,982 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:50:21,982 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:50:21,983 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:50:21,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:50:21,984 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 [2019-09-10 02:50:21,999 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:50:22,000 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:50:22,000 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:50:22,000 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:50:22,001 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:50:22,001 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:50:22,001 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:50:22,002 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:50:22,002 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:50:22,002 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:50:22,003 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:50:22,003 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:50:22,003 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:50:22,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:50:22,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:50:22,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:50:22,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:50:22,004 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:50:22,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:50:22,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:50:22,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:50:22,005 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:50:22,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:50:22,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:50:22,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:50:22,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:50:22,006 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:50:22,006 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:50:22,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:50:22,006 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:50:22,035 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:50:22,048 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:50:22,052 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:50:22,053 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:50:22,054 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:50:22,054 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product48.cil.c [2019-09-10 02:50:22,116 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4041aeda9/20d9c2f809df46fa83af3d6f1ab0829a/FLAG1d1788cb0 [2019-09-10 02:50:22,644 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:50:22,645 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product48.cil.c [2019-09-10 02:50:22,667 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4041aeda9/20d9c2f809df46fa83af3d6f1ab0829a/FLAG1d1788cb0 [2019-09-10 02:50:22,887 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4041aeda9/20d9c2f809df46fa83af3d6f1ab0829a [2019-09-10 02:50:22,896 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:50:22,898 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:50:22,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:50:22,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:50:22,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:50:22,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:50:22" (1/1) ... [2019-09-10 02:50:22,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@245df3fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:22, skipping insertion in model container [2019-09-10 02:50:22,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:50:22" (1/1) ... [2019-09-10 02:50:22,916 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:50:22,975 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:50:23,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:50:23,464 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:50:23,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:50:23,594 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:50:23,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:23 WrapperNode [2019-09-10 02:50:23,595 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:50:23,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:50:23,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:50:23,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:50:23,609 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:23" (1/1) ... [2019-09-10 02:50:23,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:23" (1/1) ... [2019-09-10 02:50:23,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:23" (1/1) ... [2019-09-10 02:50:23,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:23" (1/1) ... [2019-09-10 02:50:23,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:23" (1/1) ... [2019-09-10 02:50:23,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:23" (1/1) ... [2019-09-10 02:50:23,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:23" (1/1) ... [2019-09-10 02:50:23,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:50:23,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:50:23,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:50:23,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:50:23,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:23" (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 [2019-09-10 02:50:23,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:50:23,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:50:23,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:50:23,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-10 02:50:23,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:50:23,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:50:23,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:50:23,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:50:23,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:50:23,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:50:23,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:50:23,787 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:50:23,787 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:50:23,788 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:50:23,788 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:50:23,788 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:50:23,788 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:50:23,788 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:50:23,789 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-10 02:50:23,789 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:50:23,789 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-09-10 02:50:23,789 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:50:23,789 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:50:23,789 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:50:23,790 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:50:23,790 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:50:23,790 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-10 02:50:23,790 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-10 02:50:23,790 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-10 02:50:23,790 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:50:23,791 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:50:23,791 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:50:23,791 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:50:23,791 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:50:23,791 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:50:23,791 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-10 02:50:23,792 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:50:23,792 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:50:23,792 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:50:23,792 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:50:23,792 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:50:23,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:50:23,793 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:50:23,793 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:50:23,793 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:50:23,793 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:50:23,793 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:50:23,793 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-10 02:50:23,794 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:50:23,794 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:50:23,794 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:50:23,794 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:50:23,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:50:23,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:50:23,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:50:23,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:50:23,795 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:50:23,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:50:23,795 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:50:23,796 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:50:23,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:50:23,796 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:50:23,796 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:50:23,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:50:23,797 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:50:23,797 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:50:23,797 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:50:23,797 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:50:23,797 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:50:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:50:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:50:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:50:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:50:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:50:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:50:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:50:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:50:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:50:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:50:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:50:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:50:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-10 02:50:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:50:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:50:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-10 02:50:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-10 02:50:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:50:23,801 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:50:23,801 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-10 02:50:23,801 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-10 02:50:23,801 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:50:23,801 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-09-10 02:50:23,801 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:50:23,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:50:23,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:50:23,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:50:24,976 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:50:24,977 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:50:24,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:50:24 BoogieIcfgContainer [2019-09-10 02:50:24,979 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:50:24,980 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:50:24,980 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:50:24,983 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:50:24,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:50:22" (1/3) ... [2019-09-10 02:50:24,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c2bc9ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:50:24, skipping insertion in model container [2019-09-10 02:50:24,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:23" (2/3) ... [2019-09-10 02:50:24,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c2bc9ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:50:24, skipping insertion in model container [2019-09-10 02:50:24,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:50:24" (3/3) ... [2019-09-10 02:50:24,988 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product48.cil.c [2019-09-10 02:50:24,998 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:50:25,009 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:50:25,026 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:50:25,057 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:50:25,057 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:50:25,057 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:50:25,057 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:50:25,058 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:50:25,058 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:50:25,058 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:50:25,058 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:50:25,077 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2019-09-10 02:50:25,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-10 02:50:25,091 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:25,092 INFO L399 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] [2019-09-10 02:50:25,094 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:25,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:25,100 INFO L82 PathProgramCache]: Analyzing trace with hash 267821041, now seen corresponding path program 1 times [2019-09-10 02:50:25,103 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:25,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:25,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:25,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:25,156 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:25,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:25,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:25,459 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:25,459 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:50:25,460 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:25,466 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:50:25,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:50:25,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:50:25,491 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 2 states. [2019-09-10 02:50:25,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:25,550 INFO L93 Difference]: Finished difference Result 154 states and 180 transitions. [2019-09-10 02:50:25,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:50:25,560 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-10 02:50:25,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:25,585 INFO L225 Difference]: With dead ends: 154 [2019-09-10 02:50:25,585 INFO L226 Difference]: Without dead ends: 143 [2019-09-10 02:50:25,589 INFO L628 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 [2019-09-10 02:50:25,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2019-09-10 02:50:25,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2019-09-10 02:50:25,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2019-09-10 02:50:25,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 168 transitions. [2019-09-10 02:50:25,696 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 168 transitions. Word has length 46 [2019-09-10 02:50:25,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:25,697 INFO L475 AbstractCegarLoop]: Abstraction has 143 states and 168 transitions. [2019-09-10 02:50:25,697 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:50:25,697 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 168 transitions. [2019-09-10 02:50:25,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-10 02:50:25,709 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:25,711 INFO L399 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] [2019-09-10 02:50:25,711 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:25,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:25,713 INFO L82 PathProgramCache]: Analyzing trace with hash -395653053, now seen corresponding path program 1 times [2019-09-10 02:50:25,713 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:25,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:25,714 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:25,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:25,715 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:25,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:25,903 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:25,903 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:50:25,903 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:25,905 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:50:25,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:50:25,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:50:25,906 INFO L87 Difference]: Start difference. First operand 143 states and 168 transitions. Second operand 3 states. [2019-09-10 02:50:25,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:25,931 INFO L93 Difference]: Finished difference Result 134 states and 156 transitions. [2019-09-10 02:50:25,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:50:25,932 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-10 02:50:25,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:25,934 INFO L225 Difference]: With dead ends: 134 [2019-09-10 02:50:25,935 INFO L226 Difference]: Without dead ends: 134 [2019-09-10 02:50:25,936 INFO L628 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 [2019-09-10 02:50:25,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2019-09-10 02:50:25,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2019-09-10 02:50:25,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-09-10 02:50:25,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 156 transitions. [2019-09-10 02:50:25,951 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 156 transitions. Word has length 47 [2019-09-10 02:50:25,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:25,953 INFO L475 AbstractCegarLoop]: Abstraction has 134 states and 156 transitions. [2019-09-10 02:50:25,953 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:50:25,953 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 156 transitions. [2019-09-10 02:50:25,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 02:50:25,955 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:25,955 INFO L399 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] [2019-09-10 02:50:25,957 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:25,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:25,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1814461049, now seen corresponding path program 1 times [2019-09-10 02:50:25,957 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:25,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:25,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:25,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:25,961 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:26,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:26,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:26,137 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:26,137 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:50:26,137 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:26,138 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:50:26,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:50:26,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:50:26,139 INFO L87 Difference]: Start difference. First operand 134 states and 156 transitions. Second operand 7 states. [2019-09-10 02:50:26,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:26,668 INFO L93 Difference]: Finished difference Result 294 states and 352 transitions. [2019-09-10 02:50:26,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:50:26,669 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-10 02:50:26,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:26,674 INFO L225 Difference]: With dead ends: 294 [2019-09-10 02:50:26,674 INFO L226 Difference]: Without dead ends: 294 [2019-09-10 02:50:26,675 INFO L628 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 [2019-09-10 02:50:26,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2019-09-10 02:50:26,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 282. [2019-09-10 02:50:26,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2019-09-10 02:50:26,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 340 transitions. [2019-09-10 02:50:26,719 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 340 transitions. Word has length 52 [2019-09-10 02:50:26,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:26,720 INFO L475 AbstractCegarLoop]: Abstraction has 282 states and 340 transitions. [2019-09-10 02:50:26,720 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:50:26,720 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 340 transitions. [2019-09-10 02:50:26,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-10 02:50:26,726 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:26,726 INFO L399 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] [2019-09-10 02:50:26,727 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:26,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:26,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1060505325, now seen corresponding path program 1 times [2019-09-10 02:50:26,727 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:26,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:26,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:26,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:26,731 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:26,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:26,921 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:26,922 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 02:50:26,922 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:26,923 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 02:50:26,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 02:50:26,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:50:26,924 INFO L87 Difference]: Start difference. First operand 282 states and 340 transitions. Second operand 10 states. [2019-09-10 02:50:27,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:27,677 INFO L93 Difference]: Finished difference Result 750 states and 945 transitions. [2019-09-10 02:50:27,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-10 02:50:27,677 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2019-09-10 02:50:27,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:27,685 INFO L225 Difference]: With dead ends: 750 [2019-09-10 02:50:27,685 INFO L226 Difference]: Without dead ends: 750 [2019-09-10 02:50:27,686 INFO L628 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 [2019-09-10 02:50:27,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2019-09-10 02:50:27,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 738. [2019-09-10 02:50:27,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 738 states. [2019-09-10 02:50:27,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 924 transitions. [2019-09-10 02:50:27,774 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 924 transitions. Word has length 57 [2019-09-10 02:50:27,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:27,781 INFO L475 AbstractCegarLoop]: Abstraction has 738 states and 924 transitions. [2019-09-10 02:50:27,781 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 02:50:27,781 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 924 transitions. [2019-09-10 02:50:27,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-10 02:50:27,787 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:27,789 INFO L399 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] [2019-09-10 02:50:27,790 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:27,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:27,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1254258393, now seen corresponding path program 1 times [2019-09-10 02:50:27,791 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:27,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:27,792 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:27,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:27,792 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:27,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:27,873 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:27,873 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 02:50:27,874 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:27,874 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 02:50:27,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 02:50:27,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:50:27,875 INFO L87 Difference]: Start difference. First operand 738 states and 924 transitions. Second operand 4 states. [2019-09-10 02:50:28,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:28,234 INFO L93 Difference]: Finished difference Result 1195 states and 1549 transitions. [2019-09-10 02:50:28,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:50:28,237 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2019-09-10 02:50:28,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:28,247 INFO L225 Difference]: With dead ends: 1195 [2019-09-10 02:50:28,247 INFO L226 Difference]: Without dead ends: 1195 [2019-09-10 02:50:28,247 INFO L628 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 [2019-09-10 02:50:28,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2019-09-10 02:50:28,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 1057. [2019-09-10 02:50:28,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1057 states. [2019-09-10 02:50:28,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1310 transitions. [2019-09-10 02:50:28,308 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1310 transitions. Word has length 61 [2019-09-10 02:50:28,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:28,309 INFO L475 AbstractCegarLoop]: Abstraction has 1057 states and 1310 transitions. [2019-09-10 02:50:28,309 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 02:50:28,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1310 transitions. [2019-09-10 02:50:28,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-10 02:50:28,313 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:28,313 INFO L399 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] [2019-09-10 02:50:28,313 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:28,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:28,314 INFO L82 PathProgramCache]: Analyzing trace with hash 909865268, now seen corresponding path program 1 times [2019-09-10 02:50:28,314 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:28,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:28,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:28,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:28,316 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:28,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:28,463 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-09-10 02:50:28,463 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:50:28,463 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:50:28,464 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 90 with the following transitions: [2019-09-10 02:50:28,467 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [54], [57], [59], [62], [68], [70], [71], [75], [78], [107], [109], [110], [111], [153], [162], [166], [170], [173], [178], [184], [186], [192], [195], [198], [226], [227], [244], [251], [254], [294], [298], [299], [302], [322], [323], [418], [419], [429], [437], [438], [439], [440], [441], [443], [444], [445], [446], [447], [448], [449], [450], [451], [493], [494], [499], [500], [501], [502], [515], [516], [531], [539], [540], [541] [2019-09-10 02:50:28,540 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:50:28,540 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:50:28,608 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:50:28,610 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 68 root evaluator evaluations with a maximum evaluation depth of 0. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-09-10 02:50:28,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:28,615 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:50:28,658 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:50:28,658 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:50:28,662 INFO L420 sIntCurrentIteration]: We unified 88 AI predicates to 88 [2019-09-10 02:50:28,662 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:50:28,663 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:50:28,663 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-10 02:50:28,663 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:28,664 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:50:28,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:50:28,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:50:28,665 INFO L87 Difference]: Start difference. First operand 1057 states and 1310 transitions. Second operand 2 states. [2019-09-10 02:50:28,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:28,665 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:50:28,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:50:28,666 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 89 [2019-09-10 02:50:28,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:28,666 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:50:28,666 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:50:28,666 INFO L628 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 [2019-09-10 02:50:28,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:50:28,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:50:28,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:50:28,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:50:28,667 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2019-09-10 02:50:28,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:28,668 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:50:28,668 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:50:28,668 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:50:28,668 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:50:28,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:50:28 BoogieIcfgContainer [2019-09-10 02:50:28,674 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:50:28,677 INFO L168 Benchmark]: Toolchain (without parser) took 5777.60 ms. Allocated memory was 141.6 MB in the beginning and 255.9 MB in the end (delta: 114.3 MB). Free memory was 87.8 MB in the beginning and 135.7 MB in the end (delta: -47.9 MB). Peak memory consumption was 66.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:28,678 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 141.6 MB. Free memory was 107.6 MB in the beginning and 107.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:50:28,679 INFO L168 Benchmark]: CACSL2BoogieTranslator took 696.11 ms. Allocated memory was 141.6 MB in the beginning and 202.9 MB in the end (delta: 61.3 MB). Free memory was 87.6 MB in the beginning and 168.6 MB in the end (delta: -81.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:28,680 INFO L168 Benchmark]: Boogie Preprocessor took 118.57 ms. Allocated memory is still 202.9 MB. Free memory was 168.6 MB in the beginning and 164.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:28,681 INFO L168 Benchmark]: RCFGBuilder took 1264.44 ms. Allocated memory was 202.9 MB in the beginning and 230.7 MB in the end (delta: 27.8 MB). Free memory was 164.3 MB in the beginning and 195.7 MB in the end (delta: -31.4 MB). Peak memory consumption was 87.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:28,682 INFO L168 Benchmark]: TraceAbstraction took 3694.18 ms. Allocated memory was 230.7 MB in the beginning and 255.9 MB in the end (delta: 25.2 MB). Free memory was 194.4 MB in the beginning and 135.7 MB in the end (delta: 58.7 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:28,687 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 141.6 MB. Free memory was 107.6 MB in the beginning and 107.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 696.11 ms. Allocated memory was 141.6 MB in the beginning and 202.9 MB in the end (delta: 61.3 MB). Free memory was 87.6 MB in the beginning and 168.6 MB in the end (delta: -81.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.57 ms. Allocated memory is still 202.9 MB. Free memory was 168.6 MB in the beginning and 164.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1264.44 ms. Allocated memory was 202.9 MB in the beginning and 230.7 MB in the end (delta: 27.8 MB). Free memory was 164.3 MB in the beginning and 195.7 MB in the end (delta: -31.4 MB). Peak memory consumption was 87.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3694.18 ms. Allocated memory was 230.7 MB in the beginning and 255.9 MB in the end (delta: 25.2 MB). Free memory was 194.4 MB in the beginning and 135.7 MB in the end (delta: 58.7 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 439]: 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 41 procedures, 242 locations, 1 error locations. SAFE Result, 3.6s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 871 SDtfs, 716 SDslu, 2088 SDs, 0 SdLazy, 787 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=1057occurred 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, 0.3s SatisfiabilityAnalysisTime, 0.6s 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...