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_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:09:08,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:09:08,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:09:08,713 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:09:08,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:09:08,714 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:09:08,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:09:08,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:09:08,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:09:08,723 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:09:08,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:09:08,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:09:08,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:09:08,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:09:08,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:09:08,735 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:09:08,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:09:08,739 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:09:08,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:09:08,745 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:09:08,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:09:08,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:09:08,752 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:09:08,753 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:09:08,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:09:08,757 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:09:08,757 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:09:08,760 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:09:08,761 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:09:08,762 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:09:08,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:09:08,763 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:09:08,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:09:08,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:09:08,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:09:08,766 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:09:08,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:09:08,767 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:09:08,767 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:09:08,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:09:08,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:09:08,769 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 17:09:08,786 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:09:08,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:09:08,787 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:09:08,787 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:09:08,788 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:09:08,788 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:09:08,788 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:09:08,788 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:09:08,788 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:09:08,789 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:09:08,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:09:08,789 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:09:08,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:09:08,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:09:08,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:09:08,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:09:08,790 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:09:08,791 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:09:08,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:09:08,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:09:08,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:09:08,791 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:09:08,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:09:08,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:09:08,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:09:08,792 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:09:08,793 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:09:08,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:09:08,793 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:09:08,793 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:09:08,827 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:09:08,838 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:09:08,841 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:09:08,842 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:09:08,843 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:09:08,844 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product32.cil.c [2019-09-16 17:09:08,927 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a8c566fc/a6a6aa46f0a247f0a6d4d34f7bc659d0/FLAG3f42c20f0 [2019-09-16 17:09:09,428 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:09:09,429 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product32.cil.c [2019-09-16 17:09:09,448 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a8c566fc/a6a6aa46f0a247f0a6d4d34f7bc659d0/FLAG3f42c20f0 [2019-09-16 17:09:09,701 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a8c566fc/a6a6aa46f0a247f0a6d4d34f7bc659d0 [2019-09-16 17:09:09,714 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:09:09,715 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:09:09,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:09:09,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:09:09,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:09:09,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:09:09" (1/1) ... [2019-09-16 17:09:09,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56607ba6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:09, skipping insertion in model container [2019-09-16 17:09:09,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:09:09" (1/1) ... [2019-09-16 17:09:09,733 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:09:09,787 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:09:10,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:09:10,224 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:09:10,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:09:10,364 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:09:10,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:10 WrapperNode [2019-09-16 17:09:10,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:09:10,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:09:10,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:09:10,365 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:09:10,376 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:10" (1/1) ... [2019-09-16 17:09:10,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:10" (1/1) ... [2019-09-16 17:09:10,400 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:10" (1/1) ... [2019-09-16 17:09:10,401 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:10" (1/1) ... [2019-09-16 17:09:10,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:10" (1/1) ... [2019-09-16 17:09:10,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:10" (1/1) ... [2019-09-16 17:09:10,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:10" (1/1) ... [2019-09-16 17:09:10,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:09:10,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:09:10,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:09:10,487 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:09:10,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:10" (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 17:09:10,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:09:10,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:09:10,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:09:10,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-16 17:09:10,571 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:09:10,571 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:09:10,571 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:09:10,572 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:09:10,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:09:10,572 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:09:10,572 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:09:10,573 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:09:10,573 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:09:10,574 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:09:10,574 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:09:10,575 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:09:10,575 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:09:10,576 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:09:10,576 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:09:10,576 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:09:10,576 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-16 17:09:10,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:09:10,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:09:10,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:09:10,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:09:10,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:09:10,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:09:10,578 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:09:10,579 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:09:10,579 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-16 17:09:10,579 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:09:10,579 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:09:10,580 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:09:10,580 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:09:10,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:09:10,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:09:10,580 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:09:10,581 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-16 17:09:10,581 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-16 17:09:10,581 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-16 17:09:10,582 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:09:10,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:09:10,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:09:10,582 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:09:10,582 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:09:10,582 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:09:10,583 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:09:10,583 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-16 17:09:10,583 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:09:10,583 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:09:10,583 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:09:10,583 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:09:10,584 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:09:10,584 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:09:10,584 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:09:10,584 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:09:10,584 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:09:10,584 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:09:10,585 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:09:10,585 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:09:10,585 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:09:10,585 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:09:10,585 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:09:10,585 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:09:10,586 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:09:10,586 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-16 17:09:10,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:09:10,586 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:09:10,586 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:09:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:09:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:09:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:09:10,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:09:10,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:09:10,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:09:10,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:09:10,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:09:10,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:09:10,589 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:09:10,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:09:10,590 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:09:10,590 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:09:10,590 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:09:10,590 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:09:10,591 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:09:10,592 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-16 17:09:10,592 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-16 17:09:10,593 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:09:10,593 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:09:10,593 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-16 17:09:10,594 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-16 17:09:10,594 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:09:10,594 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:09:10,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:09:10,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:09:10,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:09:11,815 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:09:11,816 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:09:11,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:09:11 BoogieIcfgContainer [2019-09-16 17:09:11,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:09:11,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:09:11,819 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:09:11,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:09:11,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:09:09" (1/3) ... [2019-09-16 17:09:11,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20b9e345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:09:11, skipping insertion in model container [2019-09-16 17:09:11,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:10" (2/3) ... [2019-09-16 17:09:11,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20b9e345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:09:11, skipping insertion in model container [2019-09-16 17:09:11,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:09:11" (3/3) ... [2019-09-16 17:09:11,826 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product32.cil.c [2019-09-16 17:09:11,836 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:09:11,844 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:09:11,861 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:09:11,890 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:09:11,890 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:09:11,890 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:09:11,890 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:09:11,891 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:09:11,891 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:09:11,891 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:09:11,891 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:09:11,914 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states. [2019-09-16 17:09:11,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-16 17:09:11,929 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:11,930 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 17:09:11,933 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:11,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:11,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1393146994, now seen corresponding path program 1 times [2019-09-16 17:09:11,942 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:12,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:12,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:12,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:12,009 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:12,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:12,355 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 17:09:12,357 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:12,357 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:09:12,358 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:12,363 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:09:12,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:09:12,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:09:12,382 INFO L87 Difference]: Start difference. First operand 183 states. Second operand 2 states. [2019-09-16 17:09:12,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:12,413 INFO L93 Difference]: Finished difference Result 143 states and 167 transitions. [2019-09-16 17:09:12,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:09:12,414 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-16 17:09:12,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:12,429 INFO L225 Difference]: With dead ends: 143 [2019-09-16 17:09:12,429 INFO L226 Difference]: Without dead ends: 132 [2019-09-16 17:09:12,431 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 17:09:12,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-09-16 17:09:12,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-09-16 17:09:12,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-09-16 17:09:12,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 155 transitions. [2019-09-16 17:09:12,488 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 155 transitions. Word has length 46 [2019-09-16 17:09:12,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:12,489 INFO L475 AbstractCegarLoop]: Abstraction has 132 states and 155 transitions. [2019-09-16 17:09:12,489 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:09:12,489 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 155 transitions. [2019-09-16 17:09:12,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-16 17:09:12,493 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:12,493 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 17:09:12,494 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:12,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:12,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1814082405, now seen corresponding path program 1 times [2019-09-16 17:09:12,494 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:12,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:12,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:12,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:12,497 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:12,623 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 17:09:12,623 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:12,623 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:09:12,623 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:12,625 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:09:12,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:09:12,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:09:12,627 INFO L87 Difference]: Start difference. First operand 132 states and 155 transitions. Second operand 3 states. [2019-09-16 17:09:12,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:12,649 INFO L93 Difference]: Finished difference Result 123 states and 143 transitions. [2019-09-16 17:09:12,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:09:12,651 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-16 17:09:12,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:12,654 INFO L225 Difference]: With dead ends: 123 [2019-09-16 17:09:12,654 INFO L226 Difference]: Without dead ends: 123 [2019-09-16 17:09:12,655 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 17:09:12,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-09-16 17:09:12,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-09-16 17:09:12,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-09-16 17:09:12,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 143 transitions. [2019-09-16 17:09:12,680 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 143 transitions. Word has length 47 [2019-09-16 17:09:12,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:12,683 INFO L475 AbstractCegarLoop]: Abstraction has 123 states and 143 transitions. [2019-09-16 17:09:12,683 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:09:12,684 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 143 transitions. [2019-09-16 17:09:12,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:09:12,686 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:12,686 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 17:09:12,687 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:12,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:12,687 INFO L82 PathProgramCache]: Analyzing trace with hash -947171688, now seen corresponding path program 1 times [2019-09-16 17:09:12,687 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:12,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:12,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:12,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:12,694 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:12,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:12,890 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 17:09:12,890 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:12,890 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:09:12,890 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:12,891 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:09:12,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:09:12,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:09:12,892 INFO L87 Difference]: Start difference. First operand 123 states and 143 transitions. Second operand 7 states. [2019-09-16 17:09:13,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:13,369 INFO L93 Difference]: Finished difference Result 272 states and 326 transitions. [2019-09-16 17:09:13,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:09:13,369 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-16 17:09:13,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:13,374 INFO L225 Difference]: With dead ends: 272 [2019-09-16 17:09:13,374 INFO L226 Difference]: Without dead ends: 272 [2019-09-16 17:09:13,375 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 17:09:13,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2019-09-16 17:09:13,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 260. [2019-09-16 17:09:13,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2019-09-16 17:09:13,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 314 transitions. [2019-09-16 17:09:13,420 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 314 transitions. Word has length 52 [2019-09-16 17:09:13,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:13,421 INFO L475 AbstractCegarLoop]: Abstraction has 260 states and 314 transitions. [2019-09-16 17:09:13,421 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:09:13,421 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 314 transitions. [2019-09-16 17:09:13,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-16 17:09:13,426 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:13,427 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 17:09:13,427 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:13,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:13,427 INFO L82 PathProgramCache]: Analyzing trace with hash -306167776, now seen corresponding path program 1 times [2019-09-16 17:09:13,428 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:13,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:13,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:13,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:13,431 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:13,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:13,646 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 17:09:13,647 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:13,647 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-16 17:09:13,647 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:13,648 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-16 17:09:13,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-16 17:09:13,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:09:13,649 INFO L87 Difference]: Start difference. First operand 260 states and 314 transitions. Second operand 10 states. [2019-09-16 17:09:14,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:14,379 INFO L93 Difference]: Finished difference Result 684 states and 853 transitions. [2019-09-16 17:09:14,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-16 17:09:14,379 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2019-09-16 17:09:14,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:14,391 INFO L225 Difference]: With dead ends: 684 [2019-09-16 17:09:14,391 INFO L226 Difference]: Without dead ends: 684 [2019-09-16 17:09:14,392 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 17:09:14,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2019-09-16 17:09:14,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 672. [2019-09-16 17:09:14,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 672 states. [2019-09-16 17:09:14,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 832 transitions. [2019-09-16 17:09:14,478 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 832 transitions. Word has length 57 [2019-09-16 17:09:14,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:14,479 INFO L475 AbstractCegarLoop]: Abstraction has 672 states and 832 transitions. [2019-09-16 17:09:14,483 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-16 17:09:14,484 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 832 transitions. [2019-09-16 17:09:14,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-16 17:09:14,495 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:14,503 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 17:09:14,504 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:14,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:14,504 INFO L82 PathProgramCache]: Analyzing trace with hash -714386778, now seen corresponding path program 1 times [2019-09-16 17:09:14,504 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:14,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:14,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:14,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:14,509 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:14,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:14,605 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 17:09:14,605 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:14,605 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:09:14,605 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:14,606 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:09:14,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:09:14,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:09:14,607 INFO L87 Difference]: Start difference. First operand 672 states and 832 transitions. Second operand 4 states. [2019-09-16 17:09:14,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:14,747 INFO L93 Difference]: Finished difference Result 438 states and 506 transitions. [2019-09-16 17:09:14,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:09:14,748 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2019-09-16 17:09:14,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:14,751 INFO L225 Difference]: With dead ends: 438 [2019-09-16 17:09:14,751 INFO L226 Difference]: Without dead ends: 438 [2019-09-16 17:09:14,752 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 17:09:14,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2019-09-16 17:09:14,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 426. [2019-09-16 17:09:14,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2019-09-16 17:09:14,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 488 transitions. [2019-09-16 17:09:14,769 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 488 transitions. Word has length 61 [2019-09-16 17:09:14,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:14,769 INFO L475 AbstractCegarLoop]: Abstraction has 426 states and 488 transitions. [2019-09-16 17:09:14,769 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:09:14,769 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 488 transitions. [2019-09-16 17:09:14,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-16 17:09:14,771 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:14,772 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 17:09:14,772 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:14,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:14,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1764824326, now seen corresponding path program 1 times [2019-09-16 17:09:14,773 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:14,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:14,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:14,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:14,776 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:14,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:14,919 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 17:09:14,920 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:09:14,920 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-16 17:09:14,922 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 90 with the following transitions: [2019-09-16 17:09:14,924 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [54], [57], [59], [62], [68], [70], [71], [75], [78], [107], [109], [110], [122], [158], [167], [171], [175], [178], [183], [189], [191], [197], [200], [203], [235], [236], [242], [249], [252], [292], [296], [297], [300], [320], [321], [414], [415], [425], [433], [434], [435], [436], [437], [439], [440], [441], [442], [443], [444], [445], [446], [447], [491], [492], [497], [498], [499], [500], [511], [512], [527], [535], [536], [537] [2019-09-16 17:09:14,990 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-16 17:09:14,990 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-16 17:09:15,064 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-16 17:09:15,066 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 17:09:15,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:15,072 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-16 17:09:15,117 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-16 17:09:15,118 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-16 17:09:15,121 INFO L420 sIntCurrentIteration]: We unified 88 AI predicates to 88 [2019-09-16 17:09:15,122 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-16 17:09:15,122 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-16 17:09:15,125 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-16 17:09:15,125 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:15,126 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:09:15,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:09:15,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:09:15,127 INFO L87 Difference]: Start difference. First operand 426 states and 488 transitions. Second operand 2 states. [2019-09-16 17:09:15,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:15,127 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-16 17:09:15,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:09:15,127 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 89 [2019-09-16 17:09:15,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:15,128 INFO L225 Difference]: With dead ends: 2 [2019-09-16 17:09:15,128 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:09:15,128 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 17:09:15,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:09:15,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:09:15,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:09:15,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:09:15,129 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2019-09-16 17:09:15,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:15,130 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:09:15,130 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:09:15,130 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:09:15,130 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:09:15,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:09:15 BoogieIcfgContainer [2019-09-16 17:09:15,137 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:09:15,139 INFO L168 Benchmark]: Toolchain (without parser) took 5423.45 ms. Allocated memory was 138.4 MB in the beginning and 265.8 MB in the end (delta: 127.4 MB). Free memory was 85.3 MB in the beginning and 217.3 MB in the end (delta: -132.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:09:15,140 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 104.3 MB in the beginning and 104.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:09:15,141 INFO L168 Benchmark]: CACSL2BoogieTranslator took 647.01 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 85.1 MB in the beginning and 163.7 MB in the end (delta: -78.7 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:15,142 INFO L168 Benchmark]: Boogie Preprocessor took 121.43 ms. Allocated memory is still 198.7 MB. Free memory was 163.7 MB in the beginning and 159.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:15,143 INFO L168 Benchmark]: RCFGBuilder took 1330.41 ms. Allocated memory was 198.7 MB in the beginning and 220.7 MB in the end (delta: 22.0 MB). Free memory was 159.9 MB in the beginning and 191.2 MB in the end (delta: -31.3 MB). Peak memory consumption was 92.9 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:15,144 INFO L168 Benchmark]: TraceAbstraction took 3318.34 ms. Allocated memory was 220.7 MB in the beginning and 265.8 MB in the end (delta: 45.1 MB). Free memory was 191.2 MB in the beginning and 217.3 MB in the end (delta: -26.1 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:15,148 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 104.3 MB in the beginning and 104.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 647.01 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 85.1 MB in the beginning and 163.7 MB in the end (delta: -78.7 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.43 ms. Allocated memory is still 198.7 MB. Free memory was 163.7 MB in the beginning and 159.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1330.41 ms. Allocated memory was 198.7 MB in the beginning and 220.7 MB in the end (delta: 22.0 MB). Free memory was 159.9 MB in the beginning and 191.2 MB in the end (delta: -31.3 MB). Peak memory consumption was 92.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3318.34 ms. Allocated memory was 220.7 MB in the beginning and 265.8 MB in the end (delta: 45.1 MB). Free memory was 191.2 MB in the beginning and 217.3 MB in the end (delta: -26.1 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 111]: 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, 241 locations, 1 error locations. SAFE Result, 3.2s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 749 SDtfs, 551 SDslu, 1767 SDs, 0 SdLazy, 593 SolverSat, 90 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s 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=672occurred in iteration=4, 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, 36 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...