java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:58:28,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:58:28,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:58:28,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:58:28,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:58:28,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:58:28,881 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:58:28,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:58:28,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:58:28,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:58:28,887 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:58:28,888 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:58:28,888 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:58:28,889 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:58:28,890 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:58:28,892 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:58:28,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:58:28,893 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:58:28,895 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:58:28,900 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:58:28,904 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:58:28,905 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:58:28,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:58:28,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:58:28,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:58:28,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:58:28,913 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:58:28,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:58:28,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:58:28,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:58:28,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:58:28,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:58:28,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:58:28,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:58:28,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:58:28,920 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:58:28,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:58:28,921 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:58:28,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:58:28,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:58:28,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:58:28,924 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 02:58:28,938 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:58:28,939 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:58:28,939 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:58:28,939 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:58:28,940 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:58:28,940 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:58:28,941 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:58:28,941 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:58:28,941 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:58:28,941 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:58:28,942 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:58:28,942 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:58:28,943 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:58:28,943 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:58:28,943 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:58:28,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:58:28,943 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:58:28,944 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:58:28,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:58:28,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:58:28,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:58:28,944 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:58:28,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:58:28,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:58:28,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:58:28,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:58:28,945 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:58:28,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:58:28,946 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:58:28,946 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:58:28,975 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:58:28,988 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:58:28,991 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:58:28,993 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:58:28,993 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:58:28,994 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c [2019-10-03 02:58:29,056 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fc7eaa3a/9a21aa42bd0e446c9436fe1271c96212/FLAG5a88e68d5 [2019-10-03 02:58:29,663 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:58:29,664 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c [2019-10-03 02:58:29,675 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fc7eaa3a/9a21aa42bd0e446c9436fe1271c96212/FLAG5a88e68d5 [2019-10-03 02:58:29,952 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fc7eaa3a/9a21aa42bd0e446c9436fe1271c96212 [2019-10-03 02:58:29,962 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:58:29,964 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:58:29,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:58:29,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:58:29,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:58:29,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:58:29" (1/1) ... [2019-10-03 02:58:29,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@671e4bab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:29, skipping insertion in model container [2019-10-03 02:58:29,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:58:29" (1/1) ... [2019-10-03 02:58:29,981 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:58:30,039 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:58:30,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:58:30,549 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:58:30,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:58:30,736 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:58:30,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:30 WrapperNode [2019-10-03 02:58:30,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:58:30,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:58:30,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:58:30,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:58:30,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:30" (1/1) ... [2019-10-03 02:58:30,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:30" (1/1) ... [2019-10-03 02:58:30,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:30" (1/1) ... [2019-10-03 02:58:30,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:30" (1/1) ... [2019-10-03 02:58:30,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:30" (1/1) ... [2019-10-03 02:58:30,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:30" (1/1) ... [2019-10-03 02:58:30,826 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:30" (1/1) ... [2019-10-03 02:58:30,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:58:30,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:58:30,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:58:30,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:58:30,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:30" (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 02:58:30,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:58:30,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:58:30,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:58:30,910 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:58:30,910 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:58:30,910 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:58:30,910 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:58:30,910 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:58:30,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-03 02:58:30,911 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:58:30,911 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:58:30,911 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:58:30,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:58:30,912 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:58:30,912 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:58:30,912 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-03 02:58:30,912 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-03 02:58:30,912 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:58:30,912 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:58:30,913 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:58:30,913 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:58:30,913 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:58:30,913 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-03 02:58:30,914 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:58:30,914 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:58:30,914 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:58:30,914 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:58:30,914 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:58:30,914 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:58:30,915 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:58:30,915 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-03 02:58:30,915 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-03 02:58:30,915 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-03 02:58:30,915 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:58:30,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:58:30,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:58:30,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:58:30,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:58:30,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:58:30,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:58:30,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:58:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:58:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:58:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:58:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:58:30,918 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:58:30,918 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:58:30,918 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:58:30,918 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:58:30,918 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:58:30,918 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:58:30,918 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:58:30,919 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:58:30,919 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:58:30,919 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:58:30,919 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:58:30,919 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:58:30,919 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:58:30,920 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:58:30,920 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:58:30,920 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-03 02:58:30,920 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:58:30,920 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:58:30,920 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:58:30,921 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-03 02:58:30,921 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-03 02:58:30,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:58:30,921 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:58:30,921 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:58:30,921 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:58:30,921 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-03 02:58:30,922 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:58:30,922 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-03 02:58:30,922 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-03 02:58:30,922 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:58:30,922 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-03 02:58:30,922 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:58:30,923 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:58:30,923 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:58:30,923 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:58:30,923 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:58:30,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:58:30,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:58:30,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:58:30,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:58:30,924 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:58:30,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:58:30,924 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:58:30,924 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:58:30,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:58:30,925 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:58:30,925 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:58:30,925 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:58:30,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:58:30,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:58:30,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:58:31,980 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:58:31,980 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:58:31,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:58:31 BoogieIcfgContainer [2019-10-03 02:58:31,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:58:31,985 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:58:31,985 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:58:31,988 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:58:31,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:58:29" (1/3) ... [2019-10-03 02:58:31,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d7f27be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:58:31, skipping insertion in model container [2019-10-03 02:58:31,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:30" (2/3) ... [2019-10-03 02:58:31,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d7f27be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:58:31, skipping insertion in model container [2019-10-03 02:58:31,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:58:31" (3/3) ... [2019-10-03 02:58:31,995 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product51.cil.c [2019-10-03 02:58:32,005 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:58:32,016 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:58:32,033 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:58:32,061 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:58:32,062 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:58:32,062 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:58:32,062 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:58:32,062 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:58:32,063 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:58:32,063 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:58:32,064 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:58:32,090 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states. [2019-10-03 02:58:32,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-03 02:58:32,105 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:32,106 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] [2019-10-03 02:58:32,109 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:32,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:32,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1091923628, now seen corresponding path program 1 times [2019-10-03 02:58:32,119 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:32,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:32,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:32,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:32,182 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:32,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:32,469 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 02:58:32,474 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:32,475 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:58:32,475 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:32,483 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:58:32,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:58:32,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:32,506 INFO L87 Difference]: Start difference. First operand 177 states. Second operand 2 states. [2019-10-03 02:58:32,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:32,534 INFO L93 Difference]: Finished difference Result 145 states and 170 transitions. [2019-10-03 02:58:32,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:58:32,536 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-03 02:58:32,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:32,553 INFO L225 Difference]: With dead ends: 145 [2019-10-03 02:58:32,553 INFO L226 Difference]: Without dead ends: 134 [2019-10-03 02:58:32,555 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 02:58:32,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2019-10-03 02:58:32,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2019-10-03 02:58:32,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-10-03 02:58:32,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 158 transitions. [2019-10-03 02:58:32,619 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 158 transitions. Word has length 46 [2019-10-03 02:58:32,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:32,620 INFO L475 AbstractCegarLoop]: Abstraction has 134 states and 158 transitions. [2019-10-03 02:58:32,620 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:58:32,620 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 158 transitions. [2019-10-03 02:58:32,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-03 02:58:32,629 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:32,629 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] [2019-10-03 02:58:32,629 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:32,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:32,630 INFO L82 PathProgramCache]: Analyzing trace with hash 644500822, now seen corresponding path program 1 times [2019-10-03 02:58:32,630 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:32,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:32,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:32,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:32,634 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:32,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:32,814 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 02:58:32,815 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:32,815 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:58:32,816 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:32,820 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:58:32,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:58:32,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:58:32,821 INFO L87 Difference]: Start difference. First operand 134 states and 158 transitions. Second operand 3 states. [2019-10-03 02:58:32,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:32,862 INFO L93 Difference]: Finished difference Result 125 states and 146 transitions. [2019-10-03 02:58:32,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:58:32,863 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-03 02:58:32,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:32,866 INFO L225 Difference]: With dead ends: 125 [2019-10-03 02:58:32,866 INFO L226 Difference]: Without dead ends: 125 [2019-10-03 02:58:32,867 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 02:58:32,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-10-03 02:58:32,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2019-10-03 02:58:32,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-10-03 02:58:32,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 146 transitions. [2019-10-03 02:58:32,882 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 146 transitions. Word has length 47 [2019-10-03 02:58:32,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:32,883 INFO L475 AbstractCegarLoop]: Abstraction has 125 states and 146 transitions. [2019-10-03 02:58:32,883 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:58:32,883 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 146 transitions. [2019-10-03 02:58:32,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-03 02:58:32,885 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:32,886 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] [2019-10-03 02:58:32,886 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:32,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:32,886 INFO L82 PathProgramCache]: Analyzing trace with hash -350015351, now seen corresponding path program 1 times [2019-10-03 02:58:32,887 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:32,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:32,889 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:32,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:32,890 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:32,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:33,075 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 02:58:33,077 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:33,077 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:58:33,077 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:33,078 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:58:33,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:58:33,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:58:33,078 INFO L87 Difference]: Start difference. First operand 125 states and 146 transitions. Second operand 7 states. [2019-10-03 02:58:33,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:33,592 INFO L93 Difference]: Finished difference Result 276 states and 330 transitions. [2019-10-03 02:58:33,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:58:33,592 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-10-03 02:58:33,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:33,597 INFO L225 Difference]: With dead ends: 276 [2019-10-03 02:58:33,597 INFO L226 Difference]: Without dead ends: 276 [2019-10-03 02:58:33,598 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 02:58:33,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2019-10-03 02:58:33,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 268. [2019-10-03 02:58:33,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2019-10-03 02:58:33,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 324 transitions. [2019-10-03 02:58:33,662 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 324 transitions. Word has length 51 [2019-10-03 02:58:33,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:33,662 INFO L475 AbstractCegarLoop]: Abstraction has 268 states and 324 transitions. [2019-10-03 02:58:33,663 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:58:33,663 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 324 transitions. [2019-10-03 02:58:33,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-03 02:58:33,670 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:33,671 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] [2019-10-03 02:58:33,671 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:33,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:33,674 INFO L82 PathProgramCache]: Analyzing trace with hash -103520613, now seen corresponding path program 1 times [2019-10-03 02:58:33,674 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:33,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:33,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:33,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:33,680 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:33,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:33,897 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 02:58:33,897 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:33,898 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-03 02:58:33,898 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:33,899 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-03 02:58:33,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-03 02:58:33,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:58:33,899 INFO L87 Difference]: Start difference. First operand 268 states and 324 transitions. Second operand 10 states. [2019-10-03 02:58:34,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:34,600 INFO L93 Difference]: Finished difference Result 708 states and 897 transitions. [2019-10-03 02:58:34,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-03 02:58:34,602 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2019-10-03 02:58:34,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:34,613 INFO L225 Difference]: With dead ends: 708 [2019-10-03 02:58:34,614 INFO L226 Difference]: Without dead ends: 708 [2019-10-03 02:58:34,616 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-10-03 02:58:34,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2019-10-03 02:58:34,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 696. [2019-10-03 02:58:34,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 696 states. [2019-10-03 02:58:34,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 876 transitions. [2019-10-03 02:58:34,673 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 876 transitions. Word has length 57 [2019-10-03 02:58:34,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:34,674 INFO L475 AbstractCegarLoop]: Abstraction has 696 states and 876 transitions. [2019-10-03 02:58:34,674 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-03 02:58:34,674 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 876 transitions. [2019-10-03 02:58:34,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-10-03 02:58:34,680 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:34,681 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] [2019-10-03 02:58:34,681 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:34,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:34,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1065334495, now seen corresponding path program 1 times [2019-10-03 02:58:34,682 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:34,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:34,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:34,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:34,690 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:34,761 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 02:58:34,761 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:34,761 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 02:58:34,762 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:34,762 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:58:34,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:58:34,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:58:34,763 INFO L87 Difference]: Start difference. First operand 696 states and 876 transitions. Second operand 4 states. [2019-10-03 02:58:35,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:35,126 INFO L93 Difference]: Finished difference Result 1074 states and 1423 transitions. [2019-10-03 02:58:35,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:58:35,126 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2019-10-03 02:58:35,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:35,134 INFO L225 Difference]: With dead ends: 1074 [2019-10-03 02:58:35,134 INFO L226 Difference]: Without dead ends: 1074 [2019-10-03 02:58:35,134 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:58:35,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2019-10-03 02:58:35,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 939. [2019-10-03 02:58:35,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 939 states. [2019-10-03 02:58:35,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1190 transitions. [2019-10-03 02:58:35,187 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1190 transitions. Word has length 61 [2019-10-03 02:58:35,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:35,188 INFO L475 AbstractCegarLoop]: Abstraction has 939 states and 1190 transitions. [2019-10-03 02:58:35,188 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:58:35,188 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1190 transitions. [2019-10-03 02:58:35,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-03 02:58:35,190 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:35,191 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:58:35,191 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:35,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:35,192 INFO L82 PathProgramCache]: Analyzing trace with hash 380759586, now seen corresponding path program 1 times [2019-10-03 02:58:35,192 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:35,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:35,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:35,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:35,195 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:35,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:35,325 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-03 02:58:35,325 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:58:35,326 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:58:35,327 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 89 with the following transitions: [2019-10-03 02:58:35,329 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [54], [57], [59], [62], [68], [70], [71], [75], [78], [107], [109], [110], [122], [164], [173], [177], [181], [184], [189], [195], [197], [200], [202], [205], [229], [230], [247], [254], [257], [314], [318], [319], [322], [323], [324], [417], [418], [428], [436], [437], [438], [439], [440], [442], [443], [444], [445], [446], [447], [448], [449], [450], [494], [495], [498], [499], [500], [501], [510], [511], [526], [534], [535], [536] [2019-10-03 02:58:35,372 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:58:35,373 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:58:35,436 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:58:35,437 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 69 root evaluator evaluations with a maximum evaluation depth of 0. Performed 69 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-10-03 02:58:35,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:35,442 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:58:35,483 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:58:35,483 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:58:35,486 INFO L420 sIntCurrentIteration]: We unified 87 AI predicates to 87 [2019-10-03 02:58:35,486 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:58:35,487 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:58:35,488 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-10-03 02:58:35,488 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:35,488 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:58:35,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:58:35,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:35,489 INFO L87 Difference]: Start difference. First operand 939 states and 1190 transitions. Second operand 2 states. [2019-10-03 02:58:35,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:35,490 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:58:35,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:58:35,490 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 88 [2019-10-03 02:58:35,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:35,490 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:58:35,490 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:58:35,491 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 87 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 02:58:35,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:58:35,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:58:35,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:58:35,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:58:35,492 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88 [2019-10-03 02:58:35,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:35,492 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:58:35,492 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:58:35,492 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:58:35,492 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:58:35,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:58:35 BoogieIcfgContainer [2019-10-03 02:58:35,498 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:58:35,500 INFO L168 Benchmark]: Toolchain (without parser) took 5535.69 ms. Allocated memory was 131.6 MB in the beginning and 266.3 MB in the end (delta: 134.7 MB). Free memory was 86.8 MB in the beginning and 171.0 MB in the end (delta: -84.2 MB). Peak memory consumption was 50.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:35,502 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 131.6 MB. Free memory was 105.7 MB in the beginning and 105.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:58:35,503 INFO L168 Benchmark]: CACSL2BoogieTranslator took 772.26 ms. Allocated memory was 131.6 MB in the beginning and 199.8 MB in the end (delta: 68.2 MB). Free memory was 86.6 MB in the beginning and 163.3 MB in the end (delta: -76.7 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:35,503 INFO L168 Benchmark]: Boogie Preprocessor took 96.06 ms. Allocated memory is still 199.8 MB. Free memory was 163.3 MB in the beginning and 159.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:35,504 INFO L168 Benchmark]: RCFGBuilder took 1147.93 ms. Allocated memory was 199.8 MB in the beginning and 221.2 MB in the end (delta: 21.5 MB). Free memory was 158.8 MB in the beginning and 190.4 MB in the end (delta: -31.6 MB). Peak memory consumption was 91.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:35,505 INFO L168 Benchmark]: TraceAbstraction took 3512.85 ms. Allocated memory was 221.2 MB in the beginning and 266.3 MB in the end (delta: 45.1 MB). Free memory was 189.1 MB in the beginning and 171.0 MB in the end (delta: 18.0 MB). Peak memory consumption was 63.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:35,510 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 131.6 MB. Free memory was 105.7 MB in the beginning and 105.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 772.26 ms. Allocated memory was 131.6 MB in the beginning and 199.8 MB in the end (delta: 68.2 MB). Free memory was 86.6 MB in the beginning and 163.3 MB in the end (delta: -76.7 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.06 ms. Allocated memory is still 199.8 MB. Free memory was 163.3 MB in the beginning and 159.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1147.93 ms. Allocated memory was 199.8 MB in the beginning and 221.2 MB in the end (delta: 21.5 MB). Free memory was 158.8 MB in the beginning and 190.4 MB in the end (delta: -31.6 MB). Peak memory consumption was 91.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3512.85 ms. Allocated memory was 221.2 MB in the beginning and 266.3 MB in the end (delta: 45.1 MB). Free memory was 189.1 MB in the beginning and 171.0 MB in the end (delta: 18.0 MB). Peak memory consumption was 63.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 602]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 241 locations, 1 error locations. SAFE Result, 3.4s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 807 SDtfs, 733 SDslu, 1807 SDs, 0 SdLazy, 716 SolverSat, 168 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=939occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 1.0804597701149425 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 155 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 350 NumberOfCodeBlocks, 350 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 344 ConstructedInterpolants, 0 QuantifiedInterpolants, 42856 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 20/23 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...