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_spec2_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:30:13,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:30:13,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:30:13,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:30:13,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:30:13,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:30:13,734 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:30:13,736 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:30:13,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:30:13,739 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:30:13,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:30:13,742 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:30:13,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:30:13,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:30:13,744 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:30:13,745 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:30:13,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:30:13,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:30:13,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:30:13,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:30:13,753 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:30:13,755 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:30:13,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:30:13,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:30:13,759 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:30:13,760 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:30:13,760 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:30:13,761 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:30:13,762 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:30:13,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:30:13,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:30:13,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:30:13,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:30:13,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:30:13,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:30:13,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:30:13,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:30:13,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:30:13,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:30:13,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:30:13,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:30:13,770 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:30:13,786 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:30:13,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:30:13,787 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:30:13,787 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:30:13,788 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:30:13,788 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:30:13,788 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:30:13,788 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:30:13,788 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:30:13,789 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:30:13,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:30:13,790 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:30:13,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:30:13,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:30:13,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:30:13,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:30:13,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:30:13,791 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:30:13,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:30:13,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:30:13,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:30:13,792 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:30:13,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:30:13,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:13,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:30:13,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:30:13,793 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:30:13,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:30:13,793 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:30:13,793 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:30:13,823 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:30:13,837 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:30:13,840 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:30:13,842 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:30:13,843 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:30:13,844 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product52.cil.c [2019-09-20 13:30:13,909 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3d440c7e/dad60625f33b45fa883505096aaa3cb5/FLAGa670b997e [2019-09-20 13:30:14,473 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:30:14,474 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product52.cil.c [2019-09-20 13:30:14,495 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3d440c7e/dad60625f33b45fa883505096aaa3cb5/FLAGa670b997e [2019-09-20 13:30:14,790 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3d440c7e/dad60625f33b45fa883505096aaa3cb5 [2019-09-20 13:30:14,799 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:30:14,801 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:30:14,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:14,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:30:14,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:30:14,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:14" (1/1) ... [2019-09-20 13:30:14,811 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@337b8df9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:14, skipping insertion in model container [2019-09-20 13:30:14,811 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:14" (1/1) ... [2019-09-20 13:30:14,820 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:30:14,885 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:30:15,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:15,425 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:30:15,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:15,578 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:30:15,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:15 WrapperNode [2019-09-20 13:30:15,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:15,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:30:15,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:30:15,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:30:15,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:15" (1/1) ... [2019-09-20 13:30:15,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:15" (1/1) ... [2019-09-20 13:30:15,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:15" (1/1) ... [2019-09-20 13:30:15,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:15" (1/1) ... [2019-09-20 13:30:15,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:15" (1/1) ... [2019-09-20 13:30:15,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:15" (1/1) ... [2019-09-20 13:30:15,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:15" (1/1) ... [2019-09-20 13:30:15,671 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:30:15,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:30:15,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:30:15,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:30:15,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:15,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:30:15,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:30:15,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:15,747 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:30:15,747 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:30:15,747 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:30:15,747 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:30:15,747 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:30:15,747 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:30:15,748 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:30:15,748 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:30:15,748 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:30:15,748 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:30:15,748 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-20 13:30:15,748 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:30:15,749 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-20 13:30:15,749 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:30:15,749 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:30:15,749 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:30:15,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:30:15,749 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:30:15,750 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:30:15,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:30:15,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:30:15,750 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:30:15,750 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:30:15,750 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:30:15,751 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:30:15,751 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:30:15,751 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:30:15,751 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:30:15,751 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:30:15,751 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:30:15,752 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:30:15,752 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-20 13:30:15,752 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:30:15,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:15,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:15,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:15,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:30:15,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:30:15,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:30:15,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:30:15,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:30:15,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:30:15,754 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:30:15,754 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:30:15,754 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:30:15,754 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:30:15,754 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-20 13:30:15,754 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:30:15,754 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:30:15,755 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:30:15,755 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:30:15,755 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:30:15,755 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:30:15,755 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-20 13:30:15,755 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:30:15,756 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:30:15,756 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:30:15,756 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:30:15,756 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:30:15,756 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:30:15,756 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:30:15,757 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:30:15,757 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-20 13:30:15,757 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:30:15,757 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:30:15,757 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:30:15,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:30:15,757 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:30:15,758 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:30:15,758 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:30:15,758 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:30:15,758 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:30:15,758 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:30:15,758 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:30:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:30:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:30:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:30:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:30:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:30:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:30:15,760 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:30:15,760 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:15,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:30:15,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:30:15,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:30:15,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:30:15,760 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:15,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:30:15,761 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:15,761 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:15,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:30:15,761 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:30:15,761 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:30:15,762 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:30:15,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:30:15,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:30:15,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:30:16,865 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:30:16,865 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:30:16,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:16 BoogieIcfgContainer [2019-09-20 13:30:16,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:30:16,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:30:16,869 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:30:16,872 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:30:16,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:30:14" (1/3) ... [2019-09-20 13:30:16,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60119aa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:16, skipping insertion in model container [2019-09-20 13:30:16,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:15" (2/3) ... [2019-09-20 13:30:16,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60119aa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:16, skipping insertion in model container [2019-09-20 13:30:16,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:16" (3/3) ... [2019-09-20 13:30:16,877 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product52.cil.c [2019-09-20 13:30:16,889 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:30:16,898 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:30:16,915 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:30:16,944 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:30:16,944 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:30:16,944 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:30:16,944 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:30:16,945 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:30:16,945 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:30:16,945 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:30:16,945 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:30:16,967 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states. [2019-09-20 13:30:16,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:30:16,982 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:16,983 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] [2019-09-20 13:30:16,986 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:16,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:16,993 INFO L82 PathProgramCache]: Analyzing trace with hash 422856307, now seen corresponding path program 1 times [2019-09-20 13:30:16,996 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:17,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:17,059 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:17,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:17,060 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:17,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:17,396 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:17,397 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:30:17,397 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:17,406 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:17,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:17,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:17,422 INFO L87 Difference]: Start difference. First operand 189 states. Second operand 2 states. [2019-09-20 13:30:17,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:17,449 INFO L93 Difference]: Finished difference Result 154 states and 180 transitions. [2019-09-20 13:30:17,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:17,450 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-20 13:30:17,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:17,464 INFO L225 Difference]: With dead ends: 154 [2019-09-20 13:30:17,465 INFO L226 Difference]: Without dead ends: 143 [2019-09-20 13:30:17,467 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 [2019-09-20 13:30:17,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2019-09-20 13:30:17,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2019-09-20 13:30:17,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2019-09-20 13:30:17,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 168 transitions. [2019-09-20 13:30:17,523 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 168 transitions. Word has length 51 [2019-09-20 13:30:17,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:17,524 INFO L475 AbstractCegarLoop]: Abstraction has 143 states and 168 transitions. [2019-09-20 13:30:17,524 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:17,524 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 168 transitions. [2019-09-20 13:30:17,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:30:17,528 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:17,528 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] [2019-09-20 13:30:17,528 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:17,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:17,529 INFO L82 PathProgramCache]: Analyzing trace with hash 83135735, now seen corresponding path program 1 times [2019-09-20 13:30:17,529 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:17,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:17,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:17,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:17,532 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:17,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:17,671 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:17,672 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:17,672 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:17,674 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:17,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:17,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:17,676 INFO L87 Difference]: Start difference. First operand 143 states and 168 transitions. Second operand 3 states. [2019-09-20 13:30:17,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:17,707 INFO L93 Difference]: Finished difference Result 134 states and 156 transitions. [2019-09-20 13:30:17,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:17,707 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-20 13:30:17,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:17,712 INFO L225 Difference]: With dead ends: 134 [2019-09-20 13:30:17,712 INFO L226 Difference]: Without dead ends: 134 [2019-09-20 13:30:17,713 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:17,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2019-09-20 13:30:17,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2019-09-20 13:30:17,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-09-20 13:30:17,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 156 transitions. [2019-09-20 13:30:17,728 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 156 transitions. Word has length 52 [2019-09-20 13:30:17,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:17,729 INFO L475 AbstractCegarLoop]: Abstraction has 134 states and 156 transitions. [2019-09-20 13:30:17,729 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:17,729 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 156 transitions. [2019-09-20 13:30:17,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-20 13:30:17,734 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:17,734 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] [2019-09-20 13:30:17,735 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:17,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:17,735 INFO L82 PathProgramCache]: Analyzing trace with hash 522733086, now seen corresponding path program 1 times [2019-09-20 13:30:17,735 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:17,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:17,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:17,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:17,741 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:17,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:17,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:17,930 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:17,931 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:17,931 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:17,931 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:17,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:17,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:17,932 INFO L87 Difference]: Start difference. First operand 134 states and 156 transitions. Second operand 7 states. [2019-09-20 13:30:18,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:18,474 INFO L93 Difference]: Finished difference Result 291 states and 350 transitions. [2019-09-20 13:30:18,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:30:18,475 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-09-20 13:30:18,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:18,502 INFO L225 Difference]: With dead ends: 291 [2019-09-20 13:30:18,502 INFO L226 Difference]: Without dead ends: 291 [2019-09-20 13:30:18,503 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 [2019-09-20 13:30:18,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2019-09-20 13:30:18,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 279. [2019-09-20 13:30:18,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2019-09-20 13:30:18,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 338 transitions. [2019-09-20 13:30:18,556 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 338 transitions. Word has length 57 [2019-09-20 13:30:18,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:18,557 INFO L475 AbstractCegarLoop]: Abstraction has 279 states and 338 transitions. [2019-09-20 13:30:18,557 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:18,557 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 338 transitions. [2019-09-20 13:30:18,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-09-20 13:30:18,560 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:18,560 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, 1] [2019-09-20 13:30:18,560 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:18,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:18,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1095308141, now seen corresponding path program 1 times [2019-09-20 13:30:18,561 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:18,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:18,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:18,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:18,567 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:18,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:18,717 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:18,718 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:18,718 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:18,718 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:18,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:18,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:18,719 INFO L87 Difference]: Start difference. First operand 279 states and 338 transitions. Second operand 6 states. [2019-09-20 13:30:18,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:18,917 INFO L93 Difference]: Finished difference Result 512 states and 622 transitions. [2019-09-20 13:30:18,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:18,918 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2019-09-20 13:30:18,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:18,923 INFO L225 Difference]: With dead ends: 512 [2019-09-20 13:30:18,923 INFO L226 Difference]: Without dead ends: 512 [2019-09-20 13:30:18,923 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:30:18,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2019-09-20 13:30:18,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 506. [2019-09-20 13:30:18,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 506 states. [2019-09-20 13:30:18,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 616 transitions. [2019-09-20 13:30:18,983 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 616 transitions. Word has length 62 [2019-09-20 13:30:18,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:18,984 INFO L475 AbstractCegarLoop]: Abstraction has 506 states and 616 transitions. [2019-09-20 13:30:18,984 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:18,984 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 616 transitions. [2019-09-20 13:30:18,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-20 13:30:18,993 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:18,994 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, 1, 1, 1, 1, 1] [2019-09-20 13:30:18,994 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:18,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:18,997 INFO L82 PathProgramCache]: Analyzing trace with hash -656052983, now seen corresponding path program 1 times [2019-09-20 13:30:18,998 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:19,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:19,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:19,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:19,004 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:19,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:19,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:19,165 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:19,165 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:19,165 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:19,165 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:19,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:19,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:19,167 INFO L87 Difference]: Start difference. First operand 506 states and 616 transitions. Second operand 7 states. [2019-09-20 13:30:20,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:20,023 INFO L93 Difference]: Finished difference Result 833 states and 1058 transitions. [2019-09-20 13:30:20,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-20 13:30:20,024 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2019-09-20 13:30:20,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:20,035 INFO L225 Difference]: With dead ends: 833 [2019-09-20 13:30:20,036 INFO L226 Difference]: Without dead ends: 833 [2019-09-20 13:30:20,036 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-20 13:30:20,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2019-09-20 13:30:20,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 735. [2019-09-20 13:30:20,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2019-09-20 13:30:20,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 891 transitions. [2019-09-20 13:30:20,086 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 891 transitions. Word has length 66 [2019-09-20 13:30:20,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:20,087 INFO L475 AbstractCegarLoop]: Abstraction has 735 states and 891 transitions. [2019-09-20 13:30:20,087 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:20,089 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 891 transitions. [2019-09-20 13:30:20,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-20 13:30:20,091 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:20,092 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:20,092 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:20,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:20,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1934115710, now seen corresponding path program 1 times [2019-09-20 13:30:20,092 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:20,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:20,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:20,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:20,099 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:20,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:20,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:20,220 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:20,220 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:20,220 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:20,221 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:20,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:20,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:20,221 INFO L87 Difference]: Start difference. First operand 735 states and 891 transitions. Second operand 6 states. [2019-09-20 13:30:20,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:20,266 INFO L93 Difference]: Finished difference Result 755 states and 911 transitions. [2019-09-20 13:30:20,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:30:20,267 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2019-09-20 13:30:20,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:20,271 INFO L225 Difference]: With dead ends: 755 [2019-09-20 13:30:20,272 INFO L226 Difference]: Without dead ends: 755 [2019-09-20 13:30:20,272 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:20,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2019-09-20 13:30:20,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 755. [2019-09-20 13:30:20,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 755 states. [2019-09-20 13:30:20,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 911 transitions. [2019-09-20 13:30:20,308 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 911 transitions. Word has length 89 [2019-09-20 13:30:20,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:20,308 INFO L475 AbstractCegarLoop]: Abstraction has 755 states and 911 transitions. [2019-09-20 13:30:20,308 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:20,309 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 911 transitions. [2019-09-20 13:30:20,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-20 13:30:20,311 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:20,312 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:20,312 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:20,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:20,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1232515836, now seen corresponding path program 1 times [2019-09-20 13:30:20,313 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:20,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:20,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:20,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:20,315 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:20,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:20,405 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:20,406 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:30:20,406 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:20,406 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:30:20,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:30:20,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:30:20,407 INFO L87 Difference]: Start difference. First operand 755 states and 911 transitions. Second operand 8 states. [2019-09-20 13:30:20,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:20,444 INFO L93 Difference]: Finished difference Result 783 states and 939 transitions. [2019-09-20 13:30:20,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:20,445 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2019-09-20 13:30:20,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:20,451 INFO L225 Difference]: With dead ends: 783 [2019-09-20 13:30:20,451 INFO L226 Difference]: Without dead ends: 783 [2019-09-20 13:30:20,452 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:30:20,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2019-09-20 13:30:20,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 771. [2019-09-20 13:30:20,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 771 states. [2019-09-20 13:30:20,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 927 transitions. [2019-09-20 13:30:20,486 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 927 transitions. Word has length 89 [2019-09-20 13:30:20,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:20,486 INFO L475 AbstractCegarLoop]: Abstraction has 771 states and 927 transitions. [2019-09-20 13:30:20,487 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:30:20,487 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 927 transitions. [2019-09-20 13:30:20,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-20 13:30:20,489 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:20,490 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:20,490 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:20,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:20,490 INFO L82 PathProgramCache]: Analyzing trace with hash 492965061, now seen corresponding path program 1 times [2019-09-20 13:30:20,491 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:20,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:20,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:20,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:20,494 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:20,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:20,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:20,578 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:20,578 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:30:20,578 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:20,578 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:30:20,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:30:20,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:30:20,579 INFO L87 Difference]: Start difference. First operand 771 states and 927 transitions. Second operand 4 states. [2019-09-20 13:30:20,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:20,804 INFO L93 Difference]: Finished difference Result 1758 states and 2199 transitions. [2019-09-20 13:30:20,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:30:20,805 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2019-09-20 13:30:20,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:20,817 INFO L225 Difference]: With dead ends: 1758 [2019-09-20 13:30:20,817 INFO L226 Difference]: Without dead ends: 1758 [2019-09-20 13:30:20,817 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:30:20,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1758 states. [2019-09-20 13:30:20,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1758 to 1727. [2019-09-20 13:30:20,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1727 states. [2019-09-20 13:30:20,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1727 states to 1727 states and 2127 transitions. [2019-09-20 13:30:20,922 INFO L78 Accepts]: Start accepts. Automaton has 1727 states and 2127 transitions. Word has length 89 [2019-09-20 13:30:20,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:20,923 INFO L475 AbstractCegarLoop]: Abstraction has 1727 states and 2127 transitions. [2019-09-20 13:30:20,923 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:30:20,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1727 states and 2127 transitions. [2019-09-20 13:30:20,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-20 13:30:20,927 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:20,927 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:20,927 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:20,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:20,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1931984341, now seen corresponding path program 1 times [2019-09-20 13:30:20,928 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:20,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:20,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:20,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:20,930 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:20,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:20,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:20,999 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:21,000 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:21,000 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:21,000 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:21,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:21,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:21,001 INFO L87 Difference]: Start difference. First operand 1727 states and 2127 transitions. Second operand 3 states. [2019-09-20 13:30:21,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:21,054 INFO L93 Difference]: Finished difference Result 2739 states and 3475 transitions. [2019-09-20 13:30:21,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:21,054 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2019-09-20 13:30:21,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:21,070 INFO L225 Difference]: With dead ends: 2739 [2019-09-20 13:30:21,070 INFO L226 Difference]: Without dead ends: 2739 [2019-09-20 13:30:21,071 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:21,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2739 states. [2019-09-20 13:30:21,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2739 to 2553. [2019-09-20 13:30:21,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2553 states. [2019-09-20 13:30:21,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2553 states to 2553 states and 3253 transitions. [2019-09-20 13:30:21,188 INFO L78 Accepts]: Start accepts. Automaton has 2553 states and 3253 transitions. Word has length 93 [2019-09-20 13:30:21,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:21,191 INFO L475 AbstractCegarLoop]: Abstraction has 2553 states and 3253 transitions. [2019-09-20 13:30:21,191 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:21,192 INFO L276 IsEmpty]: Start isEmpty. Operand 2553 states and 3253 transitions. [2019-09-20 13:30:21,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-09-20 13:30:21,204 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:21,204 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:21,204 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:21,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:21,205 INFO L82 PathProgramCache]: Analyzing trace with hash 931197596, now seen corresponding path program 1 times [2019-09-20 13:30:21,205 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:21,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:21,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:21,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:21,209 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:21,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:21,366 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 26 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-20 13:30:21,366 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:30:21,366 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:30:21,367 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 159 with the following transitions: [2019-09-20 13:30:21,370 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [92], [94], [97], [101], [102], [103], [119], [123], [124], [125], [128], [130], [136], [140], [143], [144], [145], [154], [158], [162], [165], [170], [173], [176], [178], [184], [190], [198], [199], [200], [202], [205], [207], [210], [213], [216], [224], [234], [235], [236], [237], [238], [240], [245], [247], [248], [253], [256], [260], [266], [293], [294], [299], [301], [304], [307], [309], [312], [319], [322], [325], [329], [330], [333], [334], [335], [429], [430], [435], [437], [440], [448], [449], [450], [451], [452], [453], [454], [455], [456], [490], [491], [492], [493], [496], [497], [498], [499], [500], [501], [502], [503], [508], [509], [512], [513], [514], [515], [516], [518], [519], [520], [521], [522], [523], [524], [525], [530], [531], [532], [533], [536], [537], [540], [541], [542], [550], [551], [552] [2019-09-20 13:30:21,426 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:30:21,426 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:30:21,512 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:30:21,514 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 128 variables. [2019-09-20 13:30:21,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:21,519 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:30:21,615 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:30:21,615 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:30:21,625 INFO L420 sIntCurrentIteration]: We unified 157 AI predicates to 157 [2019-09-20 13:30:21,625 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:30:21,626 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:30:21,626 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2019-09-20 13:30:21,626 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:21,627 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:21,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:21,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:21,628 INFO L87 Difference]: Start difference. First operand 2553 states and 3253 transitions. Second operand 2 states. [2019-09-20 13:30:21,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:21,629 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:30:21,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:21,629 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 158 [2019-09-20 13:30:21,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:21,629 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:30:21,629 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:30:21,630 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:21,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:30:21,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:30:21,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:30:21,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:30:21,631 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 158 [2019-09-20 13:30:21,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:21,631 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:30:21,631 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:21,631 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:30:21,631 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:30:21,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:30:21 BoogieIcfgContainer [2019-09-20 13:30:21,636 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:30:21,638 INFO L168 Benchmark]: Toolchain (without parser) took 6837.32 ms. Allocated memory was 131.1 MB in the beginning and 337.1 MB in the end (delta: 206.0 MB). Free memory was 85.4 MB in the beginning and 143.4 MB in the end (delta: -58.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:21,639 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 131.1 MB. Free memory was 105.2 MB in the beginning and 104.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:30:21,640 INFO L168 Benchmark]: CACSL2BoogieTranslator took 776.65 ms. Allocated memory was 131.1 MB in the beginning and 198.7 MB in the end (delta: 67.6 MB). Free memory was 85.2 MB in the beginning and 161.8 MB in the end (delta: -76.6 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:21,641 INFO L168 Benchmark]: Boogie Preprocessor took 92.37 ms. Allocated memory is still 198.7 MB. Free memory was 161.8 MB in the beginning and 157.3 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:21,642 INFO L168 Benchmark]: RCFGBuilder took 1195.78 ms. Allocated memory was 198.7 MB in the beginning and 219.2 MB in the end (delta: 20.4 MB). Free memory was 157.3 MB in the beginning and 186.7 MB in the end (delta: -29.4 MB). Peak memory consumption was 91.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:21,643 INFO L168 Benchmark]: TraceAbstraction took 4767.45 ms. Allocated memory was 219.2 MB in the beginning and 337.1 MB in the end (delta: 118.0 MB). Free memory was 185.3 MB in the beginning and 143.4 MB in the end (delta: 41.9 MB). Peak memory consumption was 159.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:21,647 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 131.1 MB. Free memory was 105.2 MB in the beginning and 104.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 776.65 ms. Allocated memory was 131.1 MB in the beginning and 198.7 MB in the end (delta: 67.6 MB). Free memory was 85.2 MB in the beginning and 161.8 MB in the end (delta: -76.6 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.37 ms. Allocated memory is still 198.7 MB. Free memory was 161.8 MB in the beginning and 157.3 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1195.78 ms. Allocated memory was 198.7 MB in the beginning and 219.2 MB in the end (delta: 20.4 MB). Free memory was 157.3 MB in the beginning and 186.7 MB in the end (delta: -29.4 MB). Peak memory consumption was 91.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4767.45 ms. Allocated memory was 219.2 MB in the beginning and 337.1 MB in the end (delta: 118.0 MB). Free memory was 185.3 MB in the beginning and 143.4 MB in the end (delta: 41.9 MB). Peak memory consumption was 159.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 995]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 250 locations, 1 error locations. SAFE Result, 4.7s OverallTime, 10 OverallIterations, 2 TraceHistogramMax, 2.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1601 SDtfs, 969 SDslu, 3464 SDs, 0 SdLazy, 946 SolverSat, 181 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 237 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2553occurred in iteration=9, 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, 0.8280254777070064 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 345 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 806 NumberOfCodeBlocks, 806 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 796 ConstructedInterpolants, 0 QuantifiedInterpolants, 110342 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 36/40 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...