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_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:30:17,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:30:17,751 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:30:17,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:30:17,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:30:17,764 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:30:17,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:30:17,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:30:17,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:30:17,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:30:17,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:30:17,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:30:17,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:30:17,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:30:17,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:30:17,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:30:17,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:30:17,778 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:30:17,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:30:17,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:30:17,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:30:17,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:30:17,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:30:17,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:30:17,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:30:17,789 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:30:17,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:30:17,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:30:17,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:30:17,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:30:17,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:30:17,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:30:17,796 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:30:17,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:30:17,799 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:30:17,799 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:30:17,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:30:17,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:30:17,802 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:30:17,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:30:17,804 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:30:17,807 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 13:30:17,832 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:30:17,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:30:17,833 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:30:17,833 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:30:17,834 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:30:17,834 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:30:17,834 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:30:17,834 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:30:17,835 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:30:17,835 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:30:17,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:30:17,838 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:30:17,838 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:30:17,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:30:17,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:30:17,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:30:17,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:30:17,839 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:30:17,839 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:30:17,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:30:17,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:30:17,840 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:30:17,840 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:30:17,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:17,841 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:30:17,841 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:30:17,841 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:30:17,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:30:17,841 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:30:17,842 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:30:17,896 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:30:17,909 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:30:17,914 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:30:17,915 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:30:17,916 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:30:17,917 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product55.cil.c [2019-09-20 13:30:17,993 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae2c568bd/a43dd1389f6c493fb5d8321c9a41d59b/FLAG04993096a [2019-09-20 13:30:18,582 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:30:18,583 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product55.cil.c [2019-09-20 13:30:18,596 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae2c568bd/a43dd1389f6c493fb5d8321c9a41d59b/FLAG04993096a [2019-09-20 13:30:18,877 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae2c568bd/a43dd1389f6c493fb5d8321c9a41d59b [2019-09-20 13:30:18,892 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:30:18,894 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:30:18,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:18,898 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:30:18,901 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:30:18,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:18" (1/1) ... [2019-09-20 13:30:18,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38c54112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:18, skipping insertion in model container [2019-09-20 13:30:18,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:18" (1/1) ... [2019-09-20 13:30:18,913 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:30:18,964 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:30:19,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:19,498 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:30:19,651 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:19,693 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:30:19,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:19 WrapperNode [2019-09-20 13:30:19,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:19,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:30:19,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:30:19,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:30:19,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:19" (1/1) ... [2019-09-20 13:30:19,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:19" (1/1) ... [2019-09-20 13:30:19,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:19" (1/1) ... [2019-09-20 13:30:19,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:19" (1/1) ... [2019-09-20 13:30:19,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:19" (1/1) ... [2019-09-20 13:30:19,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:19" (1/1) ... [2019-09-20 13:30:19,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:19" (1/1) ... [2019-09-20 13:30:19,780 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:30:19,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:30:19,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:30:19,781 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:30:19,782 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:19" (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 13:30:19,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:30:19,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:30:19,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:19,842 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:30:19,842 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:30:19,842 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:30:19,843 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:30:19,843 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:30:19,843 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:30:19,843 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:30:19,843 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:30:19,844 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:30:19,844 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:30:19,844 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-20 13:30:19,844 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:30:19,844 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:30:19,845 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:30:19,845 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:30:19,845 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:30:19,845 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-20 13:30:19,845 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:30:19,846 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:30:19,846 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:30:19,846 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:30:19,846 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:30:19,846 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:30:19,847 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-20 13:30:19,847 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:30:19,847 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-20 13:30:19,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:19,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:19,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:19,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:30:19,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:30:19,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:30:19,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:30:19,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:30:19,849 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:30:19,849 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:30:19,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:30:19,849 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:30:19,850 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:30:19,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:30:19,850 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:30:19,850 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:30:19,850 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:30:19,850 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:30:19,850 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:30:19,851 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:30:19,851 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:30:19,851 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:30:19,851 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:30:19,851 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:30:19,851 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:30:19,852 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:30:19,852 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:30:19,852 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-20 13:30:19,852 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:30:19,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:30:19,852 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-20 13:30:19,853 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:30:19,853 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:30:19,853 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:30:19,853 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:30:19,853 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:30:19,853 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:30:19,853 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:30:19,854 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:30:19,854 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:30:19,854 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:30:19,854 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-20 13:30:19,854 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:30:19,854 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:30:19,855 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-20 13:30:19,855 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:30:19,855 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:30:19,855 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:30:19,855 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:30:19,855 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:30:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:30:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:30:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:30:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:30:19,857 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:19,857 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:19,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:30:19,857 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:30:19,857 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:30:19,857 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:30:19,857 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:30:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:30:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:30:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:30:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:30:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:30:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:30:19,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:30:19,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:30:21,010 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:30:21,011 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:30:21,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:21 BoogieIcfgContainer [2019-09-20 13:30:21,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:30:21,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:30:21,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:30:21,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:30:21,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:30:18" (1/3) ... [2019-09-20 13:30:21,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ec65b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:21, skipping insertion in model container [2019-09-20 13:30:21,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:19" (2/3) ... [2019-09-20 13:30:21,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ec65b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:21, skipping insertion in model container [2019-09-20 13:30:21,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:21" (3/3) ... [2019-09-20 13:30:21,022 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product55.cil.c [2019-09-20 13:30:21,032 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:30:21,043 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:30:21,060 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:30:21,090 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:30:21,090 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:30:21,090 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:30:21,090 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:30:21,090 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:30:21,091 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:30:21,091 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:30:21,091 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:30:21,111 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states. [2019-09-20 13:30:21,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:30:21,126 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:21,127 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 13:30:21,130 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:21,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:21,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1134611440, now seen corresponding path program 1 times [2019-09-20 13:30:21,138 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:21,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:21,200 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:21,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:21,201 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:21,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:21,513 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 13:30:21,516 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:21,519 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:30:21,519 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:21,525 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:21,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:21,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:21,544 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 2 states. [2019-09-20 13:30:21,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:21,577 INFO L93 Difference]: Finished difference Result 165 states and 196 transitions. [2019-09-20 13:30:21,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:21,579 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-20 13:30:21,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:21,593 INFO L225 Difference]: With dead ends: 165 [2019-09-20 13:30:21,593 INFO L226 Difference]: Without dead ends: 154 [2019-09-20 13:30:21,595 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 13:30:21,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-09-20 13:30:21,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2019-09-20 13:30:21,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-09-20 13:30:21,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 184 transitions. [2019-09-20 13:30:21,658 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 184 transitions. Word has length 51 [2019-09-20 13:30:21,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:21,659 INFO L475 AbstractCegarLoop]: Abstraction has 154 states and 184 transitions. [2019-09-20 13:30:21,659 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:21,659 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 184 transitions. [2019-09-20 13:30:21,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:30:21,665 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:21,665 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 13:30:21,666 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:21,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:21,666 INFO L82 PathProgramCache]: Analyzing trace with hash -179918531, now seen corresponding path program 1 times [2019-09-20 13:30:21,666 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:21,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:21,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:21,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:21,669 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:21,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:21,796 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 13:30:21,797 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:21,797 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:21,797 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:21,799 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:21,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:21,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:21,801 INFO L87 Difference]: Start difference. First operand 154 states and 184 transitions. Second operand 3 states. [2019-09-20 13:30:21,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:21,826 INFO L93 Difference]: Finished difference Result 145 states and 172 transitions. [2019-09-20 13:30:21,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:21,827 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-20 13:30:21,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:21,832 INFO L225 Difference]: With dead ends: 145 [2019-09-20 13:30:21,833 INFO L226 Difference]: Without dead ends: 145 [2019-09-20 13:30:21,834 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 13:30:21,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2019-09-20 13:30:21,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2019-09-20 13:30:21,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2019-09-20 13:30:21,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 172 transitions. [2019-09-20 13:30:21,849 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 172 transitions. Word has length 52 [2019-09-20 13:30:21,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:21,849 INFO L475 AbstractCegarLoop]: Abstraction has 145 states and 172 transitions. [2019-09-20 13:30:21,849 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:21,849 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 172 transitions. [2019-09-20 13:30:21,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-20 13:30:21,851 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:21,852 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] [2019-09-20 13:30:21,852 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:21,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:21,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1227863388, now seen corresponding path program 1 times [2019-09-20 13:30:21,853 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:21,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:21,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:21,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:21,856 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:22,048 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 13:30:22,049 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:22,049 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:22,049 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:22,052 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:22,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:22,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:22,052 INFO L87 Difference]: Start difference. First operand 145 states and 172 transitions. Second operand 7 states. [2019-09-20 13:30:22,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:22,617 INFO L93 Difference]: Finished difference Result 313 states and 380 transitions. [2019-09-20 13:30:22,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:30:22,617 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-09-20 13:30:22,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:22,622 INFO L225 Difference]: With dead ends: 313 [2019-09-20 13:30:22,622 INFO L226 Difference]: Without dead ends: 313 [2019-09-20 13:30:22,623 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 13:30:22,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2019-09-20 13:30:22,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 305. [2019-09-20 13:30:22,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2019-09-20 13:30:22,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 374 transitions. [2019-09-20 13:30:22,658 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 374 transitions. Word has length 56 [2019-09-20 13:30:22,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:22,659 INFO L475 AbstractCegarLoop]: Abstraction has 305 states and 374 transitions. [2019-09-20 13:30:22,659 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:22,659 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 374 transitions. [2019-09-20 13:30:22,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-09-20 13:30:22,663 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:22,663 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 13:30:22,663 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:22,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:22,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1601957820, now seen corresponding path program 1 times [2019-09-20 13:30:22,664 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:22,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:22,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:22,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:22,667 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:22,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:22,810 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 13:30:22,811 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:22,811 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:22,811 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:22,812 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:22,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:22,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:22,813 INFO L87 Difference]: Start difference. First operand 305 states and 374 transitions. Second operand 6 states. [2019-09-20 13:30:23,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:23,066 INFO L93 Difference]: Finished difference Result 564 states and 694 transitions. [2019-09-20 13:30:23,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:23,068 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2019-09-20 13:30:23,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:23,074 INFO L225 Difference]: With dead ends: 564 [2019-09-20 13:30:23,074 INFO L226 Difference]: Without dead ends: 564 [2019-09-20 13:30:23,075 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 13:30:23,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2019-09-20 13:30:23,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 558. [2019-09-20 13:30:23,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2019-09-20 13:30:23,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 688 transitions. [2019-09-20 13:30:23,158 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 688 transitions. Word has length 62 [2019-09-20 13:30:23,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:23,158 INFO L475 AbstractCegarLoop]: Abstraction has 558 states and 688 transitions. [2019-09-20 13:30:23,158 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:23,159 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 688 transitions. [2019-09-20 13:30:23,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-20 13:30:23,171 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:23,171 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 13:30:23,172 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:23,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:23,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1204720808, now seen corresponding path program 1 times [2019-09-20 13:30:23,172 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:23,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:23,178 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:23,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:23,178 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:23,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:23,314 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 13:30:23,314 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:23,314 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:23,314 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:23,315 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:23,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:23,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:23,316 INFO L87 Difference]: Start difference. First operand 558 states and 688 transitions. Second operand 7 states. [2019-09-20 13:30:24,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:24,110 INFO L93 Difference]: Finished difference Result 907 states and 1154 transitions. [2019-09-20 13:30:24,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-20 13:30:24,111 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2019-09-20 13:30:24,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:24,118 INFO L225 Difference]: With dead ends: 907 [2019-09-20 13:30:24,118 INFO L226 Difference]: Without dead ends: 907 [2019-09-20 13:30:24,118 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 13:30:24,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2019-09-20 13:30:24,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 811. [2019-09-20 13:30:24,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2019-09-20 13:30:24,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 991 transitions. [2019-09-20 13:30:24,166 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 991 transitions. Word has length 66 [2019-09-20 13:30:24,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:24,167 INFO L475 AbstractCegarLoop]: Abstraction has 811 states and 991 transitions. [2019-09-20 13:30:24,167 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:24,167 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 991 transitions. [2019-09-20 13:30:24,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-20 13:30:24,170 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:24,171 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 13:30:24,171 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:24,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:24,171 INFO L82 PathProgramCache]: Analyzing trace with hash -763723638, now seen corresponding path program 1 times [2019-09-20 13:30:24,172 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:24,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:24,174 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:24,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:24,174 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:24,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:24,240 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 13:30:24,240 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:24,241 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:24,241 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:24,242 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:24,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:24,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:24,242 INFO L87 Difference]: Start difference. First operand 811 states and 991 transitions. Second operand 6 states. [2019-09-20 13:30:24,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:24,277 INFO L93 Difference]: Finished difference Result 831 states and 1011 transitions. [2019-09-20 13:30:24,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:30:24,278 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2019-09-20 13:30:24,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:24,282 INFO L225 Difference]: With dead ends: 831 [2019-09-20 13:30:24,282 INFO L226 Difference]: Without dead ends: 831 [2019-09-20 13:30:24,283 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 13:30:24,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2019-09-20 13:30:24,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 831. [2019-09-20 13:30:24,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 831 states. [2019-09-20 13:30:24,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1011 transitions. [2019-09-20 13:30:24,320 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1011 transitions. Word has length 93 [2019-09-20 13:30:24,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:24,320 INFO L475 AbstractCegarLoop]: Abstraction has 831 states and 1011 transitions. [2019-09-20 13:30:24,320 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:24,320 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1011 transitions. [2019-09-20 13:30:24,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-20 13:30:24,323 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:24,323 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 13:30:24,324 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:24,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:24,324 INFO L82 PathProgramCache]: Analyzing trace with hash -836110196, now seen corresponding path program 1 times [2019-09-20 13:30:24,324 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:24,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:24,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:24,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:24,327 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:24,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:24,409 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 13:30:24,410 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:24,410 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:30:24,410 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:24,410 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:30:24,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:30:24,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:30:24,411 INFO L87 Difference]: Start difference. First operand 831 states and 1011 transitions. Second operand 8 states. [2019-09-20 13:30:24,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:24,443 INFO L93 Difference]: Finished difference Result 859 states and 1039 transitions. [2019-09-20 13:30:24,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:24,444 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 93 [2019-09-20 13:30:24,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:24,449 INFO L225 Difference]: With dead ends: 859 [2019-09-20 13:30:24,449 INFO L226 Difference]: Without dead ends: 859 [2019-09-20 13:30:24,449 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 13:30:24,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2019-09-20 13:30:24,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 847. [2019-09-20 13:30:24,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 847 states. [2019-09-20 13:30:24,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1027 transitions. [2019-09-20 13:30:24,484 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1027 transitions. Word has length 93 [2019-09-20 13:30:24,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:24,485 INFO L475 AbstractCegarLoop]: Abstraction has 847 states and 1027 transitions. [2019-09-20 13:30:24,485 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:30:24,485 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1027 transitions. [2019-09-20 13:30:24,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-20 13:30:24,487 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:24,488 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 13:30:24,488 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:24,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:24,488 INFO L82 PathProgramCache]: Analyzing trace with hash -506344435, now seen corresponding path program 1 times [2019-09-20 13:30:24,489 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:24,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:24,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:24,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:24,491 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:24,561 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 13:30:24,561 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:24,562 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:30:24,562 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:24,562 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:30:24,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:30:24,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:30:24,563 INFO L87 Difference]: Start difference. First operand 847 states and 1027 transitions. Second operand 4 states. [2019-09-20 13:30:24,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:24,861 INFO L93 Difference]: Finished difference Result 1914 states and 2415 transitions. [2019-09-20 13:30:24,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:30:24,862 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 93 [2019-09-20 13:30:24,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:24,874 INFO L225 Difference]: With dead ends: 1914 [2019-09-20 13:30:24,874 INFO L226 Difference]: Without dead ends: 1914 [2019-09-20 13:30:24,875 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 13:30:24,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2019-09-20 13:30:24,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 1883. [2019-09-20 13:30:24,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1883 states. [2019-09-20 13:30:24,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1883 states to 1883 states and 2343 transitions. [2019-09-20 13:30:24,959 INFO L78 Accepts]: Start accepts. Automaton has 1883 states and 2343 transitions. Word has length 93 [2019-09-20 13:30:24,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:24,960 INFO L475 AbstractCegarLoop]: Abstraction has 1883 states and 2343 transitions. [2019-09-20 13:30:24,960 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:30:24,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1883 states and 2343 transitions. [2019-09-20 13:30:24,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-09-20 13:30:24,963 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:24,964 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, 1, 1, 1, 1] [2019-09-20 13:30:24,964 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:24,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:24,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1600364013, now seen corresponding path program 1 times [2019-09-20 13:30:24,964 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:24,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:24,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:24,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:24,967 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:24,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:25,018 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 13:30:25,019 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:25,019 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:25,019 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:25,020 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:25,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:25,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:25,020 INFO L87 Difference]: Start difference. First operand 1883 states and 2343 transitions. Second operand 3 states. [2019-09-20 13:30:25,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:25,068 INFO L93 Difference]: Finished difference Result 3055 states and 3911 transitions. [2019-09-20 13:30:25,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:25,069 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 97 [2019-09-20 13:30:25,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:25,086 INFO L225 Difference]: With dead ends: 3055 [2019-09-20 13:30:25,086 INFO L226 Difference]: Without dead ends: 3055 [2019-09-20 13:30:25,086 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 13:30:25,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3055 states. [2019-09-20 13:30:25,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3055 to 2895. [2019-09-20 13:30:25,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2895 states. [2019-09-20 13:30:25,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2895 states to 2895 states and 3721 transitions. [2019-09-20 13:30:25,238 INFO L78 Accepts]: Start accepts. Automaton has 2895 states and 3721 transitions. Word has length 97 [2019-09-20 13:30:25,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:25,239 INFO L475 AbstractCegarLoop]: Abstraction has 2895 states and 3721 transitions. [2019-09-20 13:30:25,239 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:25,239 INFO L276 IsEmpty]: Start isEmpty. Operand 2895 states and 3721 transitions. [2019-09-20 13:30:25,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-09-20 13:30:25,255 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:25,255 INFO L407 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, 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] [2019-09-20 13:30:25,256 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:25,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:25,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1898255401, now seen corresponding path program 1 times [2019-09-20 13:30:25,256 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:25,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:25,259 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:25,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:25,259 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:25,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:25,501 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-09-20 13:30:25,502 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:30:25,502 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:30:25,503 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 176 with the following transitions: [2019-09-20 13:30:25,507 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [103], [119], [123], [124], [125], [128], [130], [136], [140], [143], [145], [154], [158], [162], [165], [168], [170], [173], [176], [178], [181], [199], [201], [204], [206], [209], [212], [215], [223], [233], [234], [235], [236], [239], [241], [246], [248], [249], [250], [251], [254], [257], [261], [267], [296], [300], [301], [304], [306], [309], [319], [322], [326], [327], [330], [345], [348], [349], [350], [351], [375], [377], [378], [445], [446], [451], [453], [456], [464], [465], [466], [467], [468], [469], [470], [471], [472], [508], [509], [512], [513], [514], [515], [516], [517], [518], [519], [522], [523], [526], [527], [528], [529], [530], [532], [533], [534], [535], [536], [537], [538], [539], [544], [545], [546], [547], [558], [559], [562], [563], [564], [566], [567], [572], [573], [574] [2019-09-20 13:30:25,574 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:30:25,574 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:30:25,696 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:30:25,699 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 13:30:25,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:25,704 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:30:25,806 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:30:25,807 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:30:25,817 INFO L420 sIntCurrentIteration]: We unified 174 AI predicates to 174 [2019-09-20 13:30:25,818 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:30:25,819 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:30:25,819 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [13] total 13 [2019-09-20 13:30:25,819 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:25,820 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:25,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:25,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:25,821 INFO L87 Difference]: Start difference. First operand 2895 states and 3721 transitions. Second operand 2 states. [2019-09-20 13:30:25,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:25,822 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:30:25,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:25,822 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 175 [2019-09-20 13:30:25,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:25,822 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:30:25,823 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:30:25,824 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 174 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 13:30:25,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:30:25,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:30:25,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:30:25,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:30:25,825 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 175 [2019-09-20 13:30:25,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:25,826 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:30:25,826 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:25,826 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:30:25,826 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:30:25,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:30:25 BoogieIcfgContainer [2019-09-20 13:30:25,833 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:30:25,837 INFO L168 Benchmark]: Toolchain (without parser) took 6940.91 ms. Allocated memory was 131.6 MB in the beginning and 335.5 MB in the end (delta: 203.9 MB). Free memory was 84.9 MB in the beginning and 84.1 MB in the end (delta: 772.5 kB). Peak memory consumption was 204.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:25,837 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 131.6 MB. Free memory is still 104.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:30:25,840 INFO L168 Benchmark]: CACSL2BoogieTranslator took 796.99 ms. Allocated memory was 131.6 MB in the beginning and 199.2 MB in the end (delta: 67.6 MB). Free memory was 84.9 MB in the beginning and 161.4 MB in the end (delta: -76.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:25,841 INFO L168 Benchmark]: Boogie Preprocessor took 85.81 ms. Allocated memory is still 199.2 MB. Free memory was 161.4 MB in the beginning and 157.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:25,843 INFO L168 Benchmark]: RCFGBuilder took 1231.93 ms. Allocated memory was 199.2 MB in the beginning and 220.7 MB in the end (delta: 21.5 MB). Free memory was 157.7 MB in the beginning and 186.0 MB in the end (delta: -28.3 MB). Peak memory consumption was 90.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:25,848 INFO L168 Benchmark]: TraceAbstraction took 4819.31 ms. Allocated memory was 220.7 MB in the beginning and 335.5 MB in the end (delta: 114.8 MB). Free memory was 186.0 MB in the beginning and 84.1 MB in the end (delta: 101.9 MB). Peak memory consumption was 216.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:25,855 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 131.6 MB. Free memory is still 104.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 796.99 ms. Allocated memory was 131.6 MB in the beginning and 199.2 MB in the end (delta: 67.6 MB). Free memory was 84.9 MB in the beginning and 161.4 MB in the end (delta: -76.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.81 ms. Allocated memory is still 199.2 MB. Free memory was 161.4 MB in the beginning and 157.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1231.93 ms. Allocated memory was 199.2 MB in the beginning and 220.7 MB in the end (delta: 21.5 MB). Free memory was 157.7 MB in the beginning and 186.0 MB in the end (delta: -28.3 MB). Peak memory consumption was 90.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4819.31 ms. Allocated memory was 220.7 MB in the beginning and 335.5 MB in the end (delta: 114.8 MB). Free memory was 186.0 MB in the beginning and 84.1 MB in the end (delta: 101.9 MB). Peak memory consumption was 216.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1009]: 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, 256 locations, 1 error locations. SAFE Result, 4.7s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 2.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1768 SDtfs, 987 SDslu, 3905 SDs, 0 SdLazy, 1030 SolverSat, 134 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 254 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2895occurred in iteration=9, 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, 0.8045977011494253 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 313 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 838 NumberOfCodeBlocks, 838 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 828 ConstructedInterpolants, 0 QuantifiedInterpolants, 125498 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 62/64 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...