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_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:09:09,958 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:09:09,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:09:09,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:09:09,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:09:09,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:09:09,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:09:09,976 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:09:09,977 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:09:09,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:09:09,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:09:09,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:09:09,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:09:09,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:09:09,983 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:09:09,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:09:09,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:09:09,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:09:09,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:09:09,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:09:09,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:09:09,993 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:09:09,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:09:09,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:09:10,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:09:10,004 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:09:10,004 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:09:10,005 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:09:10,006 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:09:10,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:09:10,010 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:09:10,011 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:09:10,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:09:10,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:09:10,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:09:10,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:09:10,017 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:09:10,018 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:09:10,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:09:10,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:09:10,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:09:10,021 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-16 17:09:10,049 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:09:10,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:09:10,050 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:09:10,050 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:09:10,052 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:09:10,052 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:09:10,052 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:09:10,053 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:09:10,053 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:09:10,053 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:09:10,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:09:10,055 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:09:10,056 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:09:10,056 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:09:10,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:09:10,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:09:10,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:09:10,057 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:09:10,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:09:10,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:09:10,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:09:10,058 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:09:10,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:09:10,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:09:10,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:09:10,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:09:10,059 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:09:10,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:09:10,060 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:09:10,060 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:09:10,116 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:09:10,134 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:09:10,140 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:09:10,141 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:09:10,142 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:09:10,143 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c [2019-09-16 17:09:10,214 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/805246fcb/067138491d504e56a939097a04199105/FLAG5e6692cae [2019-09-16 17:09:10,760 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:09:10,761 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c [2019-09-16 17:09:10,774 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/805246fcb/067138491d504e56a939097a04199105/FLAG5e6692cae [2019-09-16 17:09:11,015 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/805246fcb/067138491d504e56a939097a04199105 [2019-09-16 17:09:11,025 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:09:11,026 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:09:11,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:09:11,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:09:11,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:09:11,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:09:11" (1/1) ... [2019-09-16 17:09:11,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7052cab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:11, skipping insertion in model container [2019-09-16 17:09:11,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:09:11" (1/1) ... [2019-09-16 17:09:11,042 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:09:11,105 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:09:11,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:09:11,584 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:09:11,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:09:11,734 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:09:11,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:11 WrapperNode [2019-09-16 17:09:11,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:09:11,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:09:11,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:09:11,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:09:11,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:11" (1/1) ... [2019-09-16 17:09:11,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:11" (1/1) ... [2019-09-16 17:09:11,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:11" (1/1) ... [2019-09-16 17:09:11,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:11" (1/1) ... [2019-09-16 17:09:11,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:11" (1/1) ... [2019-09-16 17:09:11,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:11" (1/1) ... [2019-09-16 17:09:11,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:11" (1/1) ... [2019-09-16 17:09:11,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:09:11,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:09:11,828 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:09:11,828 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:09:11,829 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:09:11,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:09:11,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:09:11,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:09:11,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:09:11,893 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:09:11,893 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:09:11,893 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:09:11,894 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:09:11,894 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:09:11,894 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:09:11,894 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-16 17:09:11,894 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-16 17:09:11,894 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:09:11,895 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:09:11,895 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:09:11,895 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:09:11,895 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:09:11,895 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:09:11,895 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:09:11,896 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-16 17:09:11,896 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:09:11,896 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:09:11,896 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:09:11,896 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:09:11,896 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:09:11,897 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:09:11,897 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-16 17:09:11,897 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-16 17:09:11,897 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:09:11,897 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:09:11,897 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:09:11,898 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:09:11,898 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:09:11,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-16 17:09:11,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:09:11,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:09:11,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:09:11,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:09:11,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:09:11,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:09:11,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:09:11,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:09:11,899 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:09:11,899 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:09:11,900 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:09:11,900 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:09:11,900 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:09:11,900 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:09:11,900 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:09:11,900 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:09:11,900 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-16 17:09:11,901 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-16 17:09:11,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:09:11,901 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:09:11,901 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:09:11,901 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:09:11,901 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:09:11,901 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:09:11,902 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:09:11,902 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:09:11,902 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:09:11,902 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:09:11,902 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:09:11,902 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:09:11,903 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:09:11,903 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:09:11,903 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:09:11,903 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-16 17:09:11,903 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:09:11,903 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:09:11,904 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-16 17:09:11,904 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-16 17:09:11,904 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-16 17:09:11,904 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:09:11,904 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:09:11,904 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:09:11,904 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:09:11,905 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:09:11,905 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:09:11,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:09:11,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:09:11,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:09:11,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:09:11,906 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:09:11,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:09:11,906 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:09:11,906 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:09:11,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:09:11,906 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:09:11,907 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:09:11,907 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:09:11,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:09:11,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:09:11,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:09:12,957 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:09:12,958 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:09:12,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:09:12 BoogieIcfgContainer [2019-09-16 17:09:12,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:09:12,963 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:09:12,963 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:09:12,983 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:09:12,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:09:11" (1/3) ... [2019-09-16 17:09:12,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7601df21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:09:12, skipping insertion in model container [2019-09-16 17:09:12,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:11" (2/3) ... [2019-09-16 17:09:12,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7601df21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:09:12, skipping insertion in model container [2019-09-16 17:09:12,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:09:12" (3/3) ... [2019-09-16 17:09:12,989 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product49.cil.c [2019-09-16 17:09:12,999 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:09:13,011 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:09:13,028 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:09:13,049 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:09:13,049 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:09:13,050 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:09:13,050 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:09:13,050 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:09:13,050 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:09:13,050 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:09:13,050 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:09:13,072 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2019-09-16 17:09:13,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-16 17:09:13,088 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:13,089 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:13,092 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:13,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:13,098 INFO L82 PathProgramCache]: Analyzing trace with hash 916136138, now seen corresponding path program 1 times [2019-09-16 17:09:13,099 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:13,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:13,163 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:13,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:13,163 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:13,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:13,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:13,510 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:13,510 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:09:13,511 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:13,516 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:09:13,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:09:13,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:09:13,529 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 2 states. [2019-09-16 17:09:13,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:13,580 INFO L93 Difference]: Finished difference Result 139 states and 162 transitions. [2019-09-16 17:09:13,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:09:13,583 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-16 17:09:13,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:13,603 INFO L225 Difference]: With dead ends: 139 [2019-09-16 17:09:13,603 INFO L226 Difference]: Without dead ends: 128 [2019-09-16 17:09:13,605 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:09:13,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2019-09-16 17:09:13,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2019-09-16 17:09:13,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-09-16 17:09:13,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 150 transitions. [2019-09-16 17:09:13,661 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 150 transitions. Word has length 46 [2019-09-16 17:09:13,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:13,665 INFO L475 AbstractCegarLoop]: Abstraction has 128 states and 150 transitions. [2019-09-16 17:09:13,665 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:09:13,665 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 150 transitions. [2019-09-16 17:09:13,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-16 17:09:13,669 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:13,670 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:13,671 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:13,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:13,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1104947330, now seen corresponding path program 1 times [2019-09-16 17:09:13,672 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:13,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:13,675 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:13,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:13,676 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:13,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:13,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:13,871 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:13,872 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:09:13,873 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:13,875 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:09:13,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:09:13,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:09:13,875 INFO L87 Difference]: Start difference. First operand 128 states and 150 transitions. Second operand 3 states. [2019-09-16 17:09:13,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:13,892 INFO L93 Difference]: Finished difference Result 119 states and 138 transitions. [2019-09-16 17:09:13,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:09:13,893 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-16 17:09:13,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:13,896 INFO L225 Difference]: With dead ends: 119 [2019-09-16 17:09:13,896 INFO L226 Difference]: Without dead ends: 119 [2019-09-16 17:09:13,897 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:09:13,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2019-09-16 17:09:13,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2019-09-16 17:09:13,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-09-16 17:09:13,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 138 transitions. [2019-09-16 17:09:13,914 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 138 transitions. Word has length 47 [2019-09-16 17:09:13,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:13,916 INFO L475 AbstractCegarLoop]: Abstraction has 119 states and 138 transitions. [2019-09-16 17:09:13,917 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:09:13,917 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 138 transitions. [2019-09-16 17:09:13,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-16 17:09:13,920 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:13,920 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] [2019-09-16 17:09:13,920 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:13,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:13,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1852359913, now seen corresponding path program 1 times [2019-09-16 17:09:13,922 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:13,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:13,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:13,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:13,925 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:13,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:14,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:14,100 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:14,100 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:09:14,101 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:14,101 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:09:14,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:09:14,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:09:14,102 INFO L87 Difference]: Start difference. First operand 119 states and 138 transitions. Second operand 7 states. [2019-09-16 17:09:14,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:14,465 INFO L93 Difference]: Finished difference Result 119 states and 137 transitions. [2019-09-16 17:09:14,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:09:14,466 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-09-16 17:09:14,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:14,468 INFO L225 Difference]: With dead ends: 119 [2019-09-16 17:09:14,468 INFO L226 Difference]: Without dead ends: 119 [2019-09-16 17:09:14,468 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:09:14,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2019-09-16 17:09:14,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2019-09-16 17:09:14,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-09-16 17:09:14,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 137 transitions. [2019-09-16 17:09:14,479 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 137 transitions. Word has length 51 [2019-09-16 17:09:14,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:14,479 INFO L475 AbstractCegarLoop]: Abstraction has 119 states and 137 transitions. [2019-09-16 17:09:14,479 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:09:14,480 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 137 transitions. [2019-09-16 17:09:14,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-16 17:09:14,485 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:14,486 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] [2019-09-16 17:09:14,486 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:14,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:14,489 INFO L82 PathProgramCache]: Analyzing trace with hash 458129541, now seen corresponding path program 1 times [2019-09-16 17:09:14,489 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:14,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:14,492 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:14,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:14,493 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:14,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:14,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:14,638 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:14,638 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:09:14,639 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:14,639 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:09:14,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:09:14,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:09:14,640 INFO L87 Difference]: Start difference. First operand 119 states and 137 transitions. Second operand 5 states. [2019-09-16 17:09:15,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:15,345 INFO L93 Difference]: Finished difference Result 213 states and 246 transitions. [2019-09-16 17:09:15,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:09:15,346 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2019-09-16 17:09:15,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:15,348 INFO L225 Difference]: With dead ends: 213 [2019-09-16 17:09:15,349 INFO L226 Difference]: Without dead ends: 213 [2019-09-16 17:09:15,349 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:09:15,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2019-09-16 17:09:15,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 195. [2019-09-16 17:09:15,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2019-09-16 17:09:15,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 222 transitions. [2019-09-16 17:09:15,382 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 222 transitions. Word has length 64 [2019-09-16 17:09:15,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:15,383 INFO L475 AbstractCegarLoop]: Abstraction has 195 states and 222 transitions. [2019-09-16 17:09:15,383 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:09:15,383 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 222 transitions. [2019-09-16 17:09:15,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-09-16 17:09:15,387 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:15,387 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] [2019-09-16 17:09:15,388 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:15,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:15,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1170867649, now seen corresponding path program 1 times [2019-09-16 17:09:15,391 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:15,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:15,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:15,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:15,397 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:15,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:15,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:09:15,577 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:15,577 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-16 17:09:15,578 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:15,579 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-16 17:09:15,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-16 17:09:15,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:09:15,580 INFO L87 Difference]: Start difference. First operand 195 states and 222 transitions. Second operand 10 states. [2019-09-16 17:09:16,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:16,227 INFO L93 Difference]: Finished difference Result 447 states and 534 transitions. [2019-09-16 17:09:16,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-16 17:09:16,228 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2019-09-16 17:09:16,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:16,240 INFO L225 Difference]: With dead ends: 447 [2019-09-16 17:09:16,240 INFO L226 Difference]: Without dead ends: 447 [2019-09-16 17:09:16,241 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-09-16 17:09:16,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2019-09-16 17:09:16,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 437. [2019-09-16 17:09:16,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2019-09-16 17:09:16,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 517 transitions. [2019-09-16 17:09:16,288 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 517 transitions. Word has length 78 [2019-09-16 17:09:16,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:16,289 INFO L475 AbstractCegarLoop]: Abstraction has 437 states and 517 transitions. [2019-09-16 17:09:16,289 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-16 17:09:16,289 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 517 transitions. [2019-09-16 17:09:16,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-09-16 17:09:16,294 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:16,294 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:16,295 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:16,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:16,295 INFO L82 PathProgramCache]: Analyzing trace with hash 276517880, now seen corresponding path program 1 times [2019-09-16 17:09:16,295 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:16,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:16,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:16,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:16,299 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:16,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:16,441 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-16 17:09:16,442 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:09:16,442 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-16 17:09:16,443 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2019-09-16 17:09:16,445 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [54], [57], [59], [62], [68], [70], [71], [75], [78], [102], [104], [107], [111], [112], [113], [129], [132], [134], [135], [138], [140], [143], [150], [153], [155], [164], [168], [172], [175], [180], [186], [188], [191], [206], [207], [217], [218], [219], [220], [221], [223], [226], [230], [231], [236], [239], [243], [249], [278], [282], [283], [286], [288], [291], [301], [304], [308], [309], [312], [313], [314], [341], [342], [407], [408], [418], [426], [427], [428], [429], [430], [432], [433], [434], [435], [436], [437], [438], [439], [440], [472], [473], [474], [475], [476], [477], [480], [481], [482], [483], [486], [487], [490], [491], [492], [493], [494], [495], [496], [497], [502], [503], [504], [505], [512], [520], [521], [522] [2019-09-16 17:09:16,488 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-16 17:09:16,488 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-16 17:09:16,566 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-16 17:09:16,568 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 68 root evaluator evaluations with a maximum evaluation depth of 0. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-09-16 17:09:16,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:16,573 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-16 17:09:16,624 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-16 17:09:16,624 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-16 17:09:16,630 INFO L420 sIntCurrentIteration]: We unified 135 AI predicates to 135 [2019-09-16 17:09:16,630 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-16 17:09:16,631 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-16 17:09:16,631 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 6 [2019-09-16 17:09:16,631 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:16,632 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:09:16,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:09:16,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:09:16,633 INFO L87 Difference]: Start difference. First operand 437 states and 517 transitions. Second operand 2 states. [2019-09-16 17:09:16,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:16,633 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-16 17:09:16,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:09:16,634 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 136 [2019-09-16 17:09:16,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:16,634 INFO L225 Difference]: With dead ends: 2 [2019-09-16 17:09:16,634 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:09:16,634 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:09:16,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:09:16,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:09:16,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:09:16,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:09:16,635 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 136 [2019-09-16 17:09:16,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:16,636 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:09:16,636 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:09:16,636 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:09:16,636 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:09:16,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:09:16 BoogieIcfgContainer [2019-09-16 17:09:16,642 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:09:16,645 INFO L168 Benchmark]: Toolchain (without parser) took 5616.98 ms. Allocated memory was 138.9 MB in the beginning and 267.4 MB in the end (delta: 128.5 MB). Free memory was 85.6 MB in the beginning and 189.5 MB in the end (delta: -103.9 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:16,646 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 104.9 MB in the beginning and 104.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:09:16,647 INFO L168 Benchmark]: CACSL2BoogieTranslator took 708.16 ms. Allocated memory was 138.9 MB in the beginning and 199.2 MB in the end (delta: 60.3 MB). Free memory was 85.4 MB in the beginning and 164.8 MB in the end (delta: -79.4 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:16,648 INFO L168 Benchmark]: Boogie Preprocessor took 91.30 ms. Allocated memory is still 199.2 MB. Free memory was 164.8 MB in the beginning and 160.4 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:16,649 INFO L168 Benchmark]: RCFGBuilder took 1134.18 ms. Allocated memory is still 199.2 MB. Free memory was 160.4 MB in the beginning and 75.8 MB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2019-09-16 17:09:16,650 INFO L168 Benchmark]: TraceAbstraction took 3678.59 ms. Allocated memory was 199.2 MB in the beginning and 267.4 MB in the end (delta: 68.2 MB). Free memory was 75.5 MB in the beginning and 189.5 MB in the end (delta: -114.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:09:16,654 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 104.9 MB in the beginning and 104.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 708.16 ms. Allocated memory was 138.9 MB in the beginning and 199.2 MB in the end (delta: 60.3 MB). Free memory was 85.4 MB in the beginning and 164.8 MB in the end (delta: -79.4 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.30 ms. Allocated memory is still 199.2 MB. Free memory was 164.8 MB in the beginning and 160.4 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1134.18 ms. Allocated memory is still 199.2 MB. Free memory was 160.4 MB in the beginning and 75.8 MB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3678.59 ms. Allocated memory was 199.2 MB in the beginning and 267.4 MB in the end (delta: 68.2 MB). Free memory was 75.5 MB in the beginning and 189.5 MB in the end (delta: -114.0 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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 40 procedures, 235 locations, 1 error locations. SAFE Result, 3.5s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 756 SDtfs, 628 SDslu, 1574 SDs, 0 SdLazy, 671 SolverSat, 216 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 189 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=437occurred 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, 0.9037037037037037 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 28 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 422 NumberOfCodeBlocks, 422 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 416 ConstructedInterpolants, 0 QuantifiedInterpolants, 51226 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 26/28 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...