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_spec3_product54.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:58:01,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:58:01,748 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:58:01,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:58:01,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:58:01,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:58:01,763 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:58:01,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:58:01,767 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:58:01,768 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:58:01,770 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:58:01,771 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:58:01,771 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:58:01,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:58:01,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:58:01,774 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:58:01,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:58:01,776 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:58:01,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:58:01,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:58:01,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:58:01,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:58:01,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:58:01,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:58:01,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:58:01,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:58:01,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:58:01,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:58:01,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:58:01,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:58:01,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:58:01,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:58:01,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:58:01,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:58:01,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:58:01,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:58:01,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:58:01,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:58:01,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:58:01,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:58:01,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:58:01,801 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 [2019-10-03 02:58:01,820 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:58:01,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:58:01,821 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:58:01,821 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:58:01,822 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:58:01,822 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:58:01,822 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:58:01,823 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:58:01,823 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:58:01,823 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:58:01,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:58:01,824 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:58:01,824 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:58:01,824 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:58:01,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:58:01,825 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:58:01,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:58:01,827 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:58:01,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:58:01,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:58:01,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:58:01,828 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:58:01,828 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:58:01,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:58:01,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:58:01,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:58:01,829 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:58:01,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:58:01,829 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:58:01,829 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:58:01,869 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:58:01,883 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:58:01,887 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:58:01,889 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:58:01,889 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:58:01,890 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product54.cil.c [2019-10-03 02:58:01,959 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39c26051a/40af0be5da6b407f8747b1d9cc5ffb54/FLAG8e229805d [2019-10-03 02:58:02,579 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:58:02,580 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product54.cil.c [2019-10-03 02:58:02,614 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39c26051a/40af0be5da6b407f8747b1d9cc5ffb54/FLAG8e229805d [2019-10-03 02:58:02,832 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39c26051a/40af0be5da6b407f8747b1d9cc5ffb54 [2019-10-03 02:58:02,843 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:58:02,844 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:58:02,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:58:02,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:58:02,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:58:02,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:58:02" (1/1) ... [2019-10-03 02:58:02,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66650e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:02, skipping insertion in model container [2019-10-03 02:58:02,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:58:02" (1/1) ... [2019-10-03 02:58:02,867 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:58:02,935 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:58:03,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:58:03,454 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:58:03,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:58:03,585 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:58:03,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:03 WrapperNode [2019-10-03 02:58:03,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:58:03,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:58:03,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:58:03,588 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:58:03,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:03" (1/1) ... [2019-10-03 02:58:03,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:03" (1/1) ... [2019-10-03 02:58:03,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:03" (1/1) ... [2019-10-03 02:58:03,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:03" (1/1) ... [2019-10-03 02:58:03,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:03" (1/1) ... [2019-10-03 02:58:03,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:03" (1/1) ... [2019-10-03 02:58:03,695 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:03" (1/1) ... [2019-10-03 02:58:03,710 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:58:03,711 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:58:03,711 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:58:03,711 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:58:03,712 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:03" (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 [2019-10-03 02:58:03,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:58:03,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:58:03,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:58:03,785 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:58:03,785 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:58:03,785 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:58:03,785 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:58:03,786 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:58:03,786 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:58:03,786 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-03 02:58:03,787 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-03 02:58:03,787 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:58:03,788 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:58:03,789 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:58:03,789 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:58:03,790 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:58:03,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:58:03,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-10-03 02:58:03,791 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:58:03,791 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:58:03,791 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:58:03,792 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:58:03,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:58:03,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:58:03,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:58:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:58:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:58:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:58:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:58:03,794 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:58:03,794 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-03 02:58:03,794 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:58:03,794 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-03 02:58:03,794 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:58:03,794 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:58:03,795 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:58:03,795 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:58:03,795 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:58:03,796 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:58:03,796 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-03 02:58:03,797 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-03 02:58:03,797 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-03 02:58:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:58:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:58:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:58:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:58:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:58:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:58:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:58:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:58:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:58:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-03 02:58:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-03 02:58:03,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:58:03,800 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:58:03,800 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:58:03,800 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:58:03,801 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:58:03,801 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:58:03,801 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:58:03,801 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:58:03,802 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:58:03,802 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:58:03,802 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:58:03,803 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:58:03,803 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:58:03,803 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:58:03,803 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-10-03 02:58:03,803 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:58:03,803 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:58:03,804 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:58:03,804 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:58:03,804 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:58:03,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:58:03,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:58:03,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:58:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:58:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:58:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:58:03,808 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:58:03,808 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:58:03,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:58:03,809 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:58:03,809 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:58:03,809 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:58:03,809 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-03 02:58:03,810 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:58:03,810 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:58:03,810 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:58:03,810 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-03 02:58:03,811 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-03 02:58:03,811 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:58:03,811 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-03 02:58:03,811 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-03 02:58:03,812 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:58:03,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:58:03,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:58:03,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:58:05,107 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:58:05,108 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:58:05,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:58:05 BoogieIcfgContainer [2019-10-03 02:58:05,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:58:05,111 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:58:05,111 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:58:05,114 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:58:05,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:58:02" (1/3) ... [2019-10-03 02:58:05,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5826b716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:58:05, skipping insertion in model container [2019-10-03 02:58:05,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:03" (2/3) ... [2019-10-03 02:58:05,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5826b716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:58:05, skipping insertion in model container [2019-10-03 02:58:05,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:58:05" (3/3) ... [2019-10-03 02:58:05,119 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product54.cil.c [2019-10-03 02:58:05,129 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:58:05,139 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:58:05,162 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:58:05,195 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:58:05,195 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:58:05,195 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:58:05,195 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:58:05,195 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:58:05,195 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:58:05,196 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:58:05,196 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:58:05,216 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states. [2019-10-03 02:58:05,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-03 02:58:05,232 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:05,233 INFO L411 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] [2019-10-03 02:58:05,235 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:05,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:05,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1727770094, now seen corresponding path program 1 times [2019-10-03 02:58:05,243 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:05,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:05,296 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:05,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:05,297 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:05,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:05,569 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:05,570 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:58:05,570 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:05,578 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:58:05,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:58:05,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:05,598 INFO L87 Difference]: Start difference. First operand 196 states. Second operand 2 states. [2019-10-03 02:58:05,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:05,657 INFO L93 Difference]: Finished difference Result 164 states and 193 transitions. [2019-10-03 02:58:05,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:58:05,658 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-03 02:58:05,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:05,671 INFO L225 Difference]: With dead ends: 164 [2019-10-03 02:58:05,671 INFO L226 Difference]: Without dead ends: 153 [2019-10-03 02:58:05,673 INFO L640 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 [2019-10-03 02:58:05,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-10-03 02:58:05,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2019-10-03 02:58:05,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-10-03 02:58:05,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 181 transitions. [2019-10-03 02:58:05,726 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 181 transitions. Word has length 52 [2019-10-03 02:58:05,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:05,727 INFO L475 AbstractCegarLoop]: Abstraction has 153 states and 181 transitions. [2019-10-03 02:58:05,727 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:58:05,727 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 181 transitions. [2019-10-03 02:58:05,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-03 02:58:05,734 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:05,735 INFO L411 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] [2019-10-03 02:58:05,735 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:05,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:05,735 INFO L82 PathProgramCache]: Analyzing trace with hash -23295260, now seen corresponding path program 1 times [2019-10-03 02:58:05,736 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:05,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:05,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:05,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:05,742 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:05,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:05,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:05,919 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:05,919 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:58:05,920 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:05,922 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:58:05,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:58:05,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:58:05,923 INFO L87 Difference]: Start difference. First operand 153 states and 181 transitions. Second operand 3 states. [2019-10-03 02:58:05,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:05,959 INFO L93 Difference]: Finished difference Result 144 states and 169 transitions. [2019-10-03 02:58:05,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:58:05,959 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-10-03 02:58:05,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:05,964 INFO L225 Difference]: With dead ends: 144 [2019-10-03 02:58:05,964 INFO L226 Difference]: Without dead ends: 144 [2019-10-03 02:58:05,966 INFO L640 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 [2019-10-03 02:58:05,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-10-03 02:58:05,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2019-10-03 02:58:05,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-10-03 02:58:05,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 169 transitions. [2019-10-03 02:58:05,984 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 169 transitions. Word has length 53 [2019-10-03 02:58:05,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:05,984 INFO L475 AbstractCegarLoop]: Abstraction has 144 states and 169 transitions. [2019-10-03 02:58:05,984 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:58:05,984 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 169 transitions. [2019-10-03 02:58:05,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-03 02:58:05,987 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:05,990 INFO L411 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] [2019-10-03 02:58:05,991 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:05,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:05,991 INFO L82 PathProgramCache]: Analyzing trace with hash 646991369, now seen corresponding path program 1 times [2019-10-03 02:58:05,991 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:05,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:05,994 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:05,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:05,994 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:06,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:06,213 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:06,213 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:58:06,213 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:06,213 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:58:06,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:58:06,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:58:06,214 INFO L87 Difference]: Start difference. First operand 144 states and 169 transitions. Second operand 7 states. [2019-10-03 02:58:06,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:06,633 INFO L93 Difference]: Finished difference Result 144 states and 168 transitions. [2019-10-03 02:58:06,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:58:06,634 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2019-10-03 02:58:06,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:06,637 INFO L225 Difference]: With dead ends: 144 [2019-10-03 02:58:06,637 INFO L226 Difference]: Without dead ends: 144 [2019-10-03 02:58:06,637 INFO L640 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 [2019-10-03 02:58:06,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-10-03 02:58:06,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2019-10-03 02:58:06,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-10-03 02:58:06,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 168 transitions. [2019-10-03 02:58:06,658 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 168 transitions. Word has length 58 [2019-10-03 02:58:06,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:06,658 INFO L475 AbstractCegarLoop]: Abstraction has 144 states and 168 transitions. [2019-10-03 02:58:06,658 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:58:06,658 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 168 transitions. [2019-10-03 02:58:06,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-10-03 02:58:06,665 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:06,665 INFO L411 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] [2019-10-03 02:58:06,666 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:06,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:06,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1077665999, now seen corresponding path program 1 times [2019-10-03 02:58:06,668 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:06,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:06,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:06,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:06,672 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:06,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:06,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:06,823 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:06,823 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:58:06,823 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:06,823 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:58:06,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:58:06,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:58:06,824 INFO L87 Difference]: Start difference. First operand 144 states and 168 transitions. Second operand 5 states. [2019-10-03 02:58:07,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:07,475 INFO L93 Difference]: Finished difference Result 263 states and 303 transitions. [2019-10-03 02:58:07,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:58:07,475 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2019-10-03 02:58:07,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:07,478 INFO L225 Difference]: With dead ends: 263 [2019-10-03 02:58:07,478 INFO L226 Difference]: Without dead ends: 263 [2019-10-03 02:58:07,478 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:58:07,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2019-10-03 02:58:07,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 244. [2019-10-03 02:58:07,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2019-10-03 02:58:07,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 277 transitions. [2019-10-03 02:58:07,513 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 277 transitions. Word has length 76 [2019-10-03 02:58:07,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:07,518 INFO L475 AbstractCegarLoop]: Abstraction has 244 states and 277 transitions. [2019-10-03 02:58:07,518 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:58:07,518 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 277 transitions. [2019-10-03 02:58:07,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-10-03 02:58:07,520 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:07,520 INFO L411 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] [2019-10-03 02:58:07,523 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:07,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:07,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1489636928, now seen corresponding path program 1 times [2019-10-03 02:58:07,524 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:07,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:07,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:07,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:07,528 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:07,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:07,710 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:07,710 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:58:07,710 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:07,711 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:58:07,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:58:07,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:58:07,711 INFO L87 Difference]: Start difference. First operand 244 states and 277 transitions. Second operand 6 states. [2019-10-03 02:58:07,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:07,919 INFO L93 Difference]: Finished difference Result 371 states and 426 transitions. [2019-10-03 02:58:07,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:58:07,920 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 90 [2019-10-03 02:58:07,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:07,924 INFO L225 Difference]: With dead ends: 371 [2019-10-03 02:58:07,924 INFO L226 Difference]: Without dead ends: 371 [2019-10-03 02:58:07,925 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:58:07,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2019-10-03 02:58:07,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 367. [2019-10-03 02:58:07,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 367 states. [2019-10-03 02:58:07,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 422 transitions. [2019-10-03 02:58:07,957 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 422 transitions. Word has length 90 [2019-10-03 02:58:07,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:07,958 INFO L475 AbstractCegarLoop]: Abstraction has 367 states and 422 transitions. [2019-10-03 02:58:07,958 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:58:07,958 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 422 transitions. [2019-10-03 02:58:07,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-03 02:58:07,962 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:07,962 INFO L411 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, 1] [2019-10-03 02:58:07,963 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:07,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:07,963 INFO L82 PathProgramCache]: Analyzing trace with hash -467189990, now seen corresponding path program 1 times [2019-10-03 02:58:07,963 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:07,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:07,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:07,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:07,966 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:08,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:08,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:08,114 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:08,115 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:58:08,115 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:08,115 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:58:08,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:58:08,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:58:08,116 INFO L87 Difference]: Start difference. First operand 367 states and 422 transitions. Second operand 6 states. [2019-10-03 02:58:08,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:08,376 INFO L93 Difference]: Finished difference Result 582 states and 687 transitions. [2019-10-03 02:58:08,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:58:08,376 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 94 [2019-10-03 02:58:08,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:08,381 INFO L225 Difference]: With dead ends: 582 [2019-10-03 02:58:08,381 INFO L226 Difference]: Without dead ends: 582 [2019-10-03 02:58:08,382 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:58:08,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2019-10-03 02:58:08,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 564. [2019-10-03 02:58:08,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2019-10-03 02:58:08,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 664 transitions. [2019-10-03 02:58:08,412 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 664 transitions. Word has length 94 [2019-10-03 02:58:08,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:08,413 INFO L475 AbstractCegarLoop]: Abstraction has 564 states and 664 transitions. [2019-10-03 02:58:08,413 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:58:08,413 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 664 transitions. [2019-10-03 02:58:08,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-03 02:58:08,415 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:08,415 INFO L411 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, 1] [2019-10-03 02:58:08,416 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:08,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:08,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1892117019, now seen corresponding path program 1 times [2019-10-03 02:58:08,416 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:08,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:08,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:08,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:08,419 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:08,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:08,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:08,480 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:08,480 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:58:08,480 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:08,480 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:58:08,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:58:08,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:58:08,482 INFO L87 Difference]: Start difference. First operand 564 states and 664 transitions. Second operand 5 states. [2019-10-03 02:58:08,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:08,507 INFO L93 Difference]: Finished difference Result 574 states and 674 transitions. [2019-10-03 02:58:08,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:58:08,508 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 94 [2019-10-03 02:58:08,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:08,513 INFO L225 Difference]: With dead ends: 574 [2019-10-03 02:58:08,513 INFO L226 Difference]: Without dead ends: 574 [2019-10-03 02:58:08,514 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:58:08,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2019-10-03 02:58:08,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 568. [2019-10-03 02:58:08,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 568 states. [2019-10-03 02:58:08,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 667 transitions. [2019-10-03 02:58:08,549 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 667 transitions. Word has length 94 [2019-10-03 02:58:08,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:08,550 INFO L475 AbstractCegarLoop]: Abstraction has 568 states and 667 transitions. [2019-10-03 02:58:08,550 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:58:08,550 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 667 transitions. [2019-10-03 02:58:08,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-03 02:58:08,554 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:08,554 INFO L411 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, 1] [2019-10-03 02:58:08,554 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:08,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:08,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1743318755, now seen corresponding path program 1 times [2019-10-03 02:58:08,555 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:08,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:08,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:08,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:08,558 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:08,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:08,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:08,695 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:08,695 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-03 02:58:08,695 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:08,702 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-03 02:58:08,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-03 02:58:08,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:58:08,703 INFO L87 Difference]: Start difference. First operand 568 states and 667 transitions. Second operand 9 states. [2019-10-03 02:58:08,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:08,760 INFO L93 Difference]: Finished difference Result 572 states and 672 transitions. [2019-10-03 02:58:08,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-03 02:58:08,760 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2019-10-03 02:58:08,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:08,765 INFO L225 Difference]: With dead ends: 572 [2019-10-03 02:58:08,765 INFO L226 Difference]: Without dead ends: 572 [2019-10-03 02:58:08,766 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:58:08,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2019-10-03 02:58:08,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 566. [2019-10-03 02:58:08,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2019-10-03 02:58:08,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 663 transitions. [2019-10-03 02:58:08,793 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 663 transitions. Word has length 94 [2019-10-03 02:58:08,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:08,794 INFO L475 AbstractCegarLoop]: Abstraction has 566 states and 663 transitions. [2019-10-03 02:58:08,794 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-03 02:58:08,794 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 663 transitions. [2019-10-03 02:58:08,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-10-03 02:58:08,798 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:08,799 INFO L411 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, 1, 1] [2019-10-03 02:58:08,799 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:08,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:08,799 INFO L82 PathProgramCache]: Analyzing trace with hash -794227168, now seen corresponding path program 1 times [2019-10-03 02:58:08,799 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:08,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:08,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:08,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:08,802 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:08,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:08,928 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:08,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-03 02:58:08,928 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:08,929 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-03 02:58:08,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-03 02:58:08,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:58:08,930 INFO L87 Difference]: Start difference. First operand 566 states and 663 transitions. Second operand 10 states. [2019-10-03 02:58:09,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:09,178 INFO L93 Difference]: Finished difference Result 572 states and 657 transitions. [2019-10-03 02:58:09,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-03 02:58:09,178 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 95 [2019-10-03 02:58:09,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:09,182 INFO L225 Difference]: With dead ends: 572 [2019-10-03 02:58:09,182 INFO L226 Difference]: Without dead ends: 572 [2019-10-03 02:58:09,183 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-10-03 02:58:09,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2019-10-03 02:58:09,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 551. [2019-10-03 02:58:09,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 551 states. [2019-10-03 02:58:09,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 628 transitions. [2019-10-03 02:58:09,201 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 628 transitions. Word has length 95 [2019-10-03 02:58:09,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:09,201 INFO L475 AbstractCegarLoop]: Abstraction has 551 states and 628 transitions. [2019-10-03 02:58:09,201 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-03 02:58:09,202 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 628 transitions. [2019-10-03 02:58:09,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-10-03 02:58:09,204 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:09,205 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1] [2019-10-03 02:58:09,205 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:09,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:09,205 INFO L82 PathProgramCache]: Analyzing trace with hash -252196105, now seen corresponding path program 1 times [2019-10-03 02:58:09,205 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:09,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:09,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:09,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:09,208 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:09,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:09,321 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-03 02:58:09,322 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:58:09,322 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:58:09,323 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 140 with the following transitions: [2019-10-03 02:58:09,325 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [94], [110], [113], [115], [116], [119], [121], [124], [131], [134], [136], [145], [149], [153], [159], [161], [167], [169], [175], [178], [199], [200], [201], [202], [203], [205], [208], [212], [213], [214], [215], [218], [221], [225], [231], [260], [264], [267], [270], [272], [275], [285], [293], [296], [311], [314], [315], [316], [317], [340], [342], [343], [344], [345], [410], [411], [421], [423], [426], [428], [430], [433], [435], [440], [446], [447], [455], [456], [457], [458], [459], [460], [461], [462], [463], [497], [498], [499], [500], [503], [504], [511], [512], [515], [516], [517], [518], [519], [520], [521], [522], [527], [528], [529], [530], [541], [542], [545], [547], [548], [553], [554], [555], [556], [557], [558], [559], [561], [562], [563] [2019-10-03 02:58:09,392 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:58:09,393 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:58:09,517 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:58:09,519 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 68 root evaluator evaluations with a maximum evaluation depth of 0. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-10-03 02:58:09,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:09,525 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:58:09,629 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:58:09,630 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:58:09,637 INFO L420 sIntCurrentIteration]: We unified 138 AI predicates to 138 [2019-10-03 02:58:09,638 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:58:09,641 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:58:09,642 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 6 [2019-10-03 02:58:09,642 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:09,643 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:58:09,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:58:09,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:09,643 INFO L87 Difference]: Start difference. First operand 551 states and 628 transitions. Second operand 2 states. [2019-10-03 02:58:09,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:09,644 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:58:09,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:58:09,645 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 139 [2019-10-03 02:58:09,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:09,645 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:58:09,645 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:58:09,647 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:09,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:58:09,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:58:09,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:58:09,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:58:09,648 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 139 [2019-10-03 02:58:09,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:09,648 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:58:09,648 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:58:09,649 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:58:09,649 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:58:09,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:58:09 BoogieIcfgContainer [2019-10-03 02:58:09,656 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:58:09,660 INFO L168 Benchmark]: Toolchain (without parser) took 6813.32 ms. Allocated memory was 142.6 MB in the beginning and 304.6 MB in the end (delta: 162.0 MB). Free memory was 89.2 MB in the beginning and 126.4 MB in the end (delta: -37.1 MB). Peak memory consumption was 124.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:09,661 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 142.6 MB. Free memory was 108.6 MB in the beginning and 108.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:58:09,664 INFO L168 Benchmark]: CACSL2BoogieTranslator took 740.85 ms. Allocated memory was 142.6 MB in the beginning and 197.1 MB in the end (delta: 54.5 MB). Free memory was 89.0 MB in the beginning and 161.9 MB in the end (delta: -72.9 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:09,666 INFO L168 Benchmark]: Boogie Preprocessor took 123.41 ms. Allocated memory is still 197.1 MB. Free memory was 161.9 MB in the beginning and 157.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:09,673 INFO L168 Benchmark]: RCFGBuilder took 1398.57 ms. Allocated memory was 197.1 MB in the beginning and 228.1 MB in the end (delta: 30.9 MB). Free memory was 157.2 MB in the beginning and 184.9 MB in the end (delta: -27.6 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:09,674 INFO L168 Benchmark]: TraceAbstraction took 4545.11 ms. Allocated memory was 228.1 MB in the beginning and 304.6 MB in the end (delta: 76.5 MB). Free memory was 184.9 MB in the beginning and 126.4 MB in the end (delta: 58.5 MB). Peak memory consumption was 135.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:09,689 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 142.6 MB. Free memory was 108.6 MB in the beginning and 108.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 740.85 ms. Allocated memory was 142.6 MB in the beginning and 197.1 MB in the end (delta: 54.5 MB). Free memory was 89.0 MB in the beginning and 161.9 MB in the end (delta: -72.9 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.41 ms. Allocated memory is still 197.1 MB. Free memory was 161.9 MB in the beginning and 157.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1398.57 ms. Allocated memory was 197.1 MB in the beginning and 228.1 MB in the end (delta: 30.9 MB). Free memory was 157.2 MB in the beginning and 184.9 MB in the end (delta: -27.6 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4545.11 ms. Allocated memory was 228.1 MB in the beginning and 304.6 MB in the end (delta: 76.5 MB). Free memory was 184.9 MB in the beginning and 126.4 MB in the end (delta: 58.5 MB). Peak memory consumption was 135.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 257]: 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 42 procedures, 252 locations, 1 error locations. SAFE Result, 4.4s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 2.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1671 SDtfs, 805 SDslu, 5087 SDs, 0 SdLazy, 803 SolverSat, 217 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 228 GetRequests, 176 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=568occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.9202898550724637 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 74 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 845 NumberOfCodeBlocks, 845 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 835 ConstructedInterpolants, 0 QuantifiedInterpolants, 110552 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 29/31 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...