/usr/bin/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:35:03,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:35:03,921 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:35:03,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:35:03,934 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:35:03,935 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:35:03,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:35:03,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:35:03,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:35:03,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:35:03,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:35:03,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:35:03,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:35:03,943 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:35:03,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:35:03,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:35:03,946 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:35:03,947 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:35:03,949 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:35:03,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:35:03,953 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:35:03,954 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:35:03,955 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:35:03,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:35:03,959 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:35:03,959 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:35:03,959 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:35:03,960 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:35:03,961 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:35:03,962 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:35:03,962 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:35:03,963 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:35:03,963 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:35:03,964 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:35:03,965 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:35:03,966 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:35:03,966 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:35:03,966 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:35:03,967 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:35:03,968 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:35:03,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:35:03,969 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 12:35:03,978 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:35:03,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:35:03,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:35:03,980 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:35:03,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:35:03,980 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:35:03,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:35:03,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:35:03,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:35:03,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:35:03,981 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:35:03,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:35:03,981 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:35:03,982 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:35:03,982 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:35:03,982 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:35:03,982 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:35:03,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:35:03,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:35:03,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:35:03,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:35:03,983 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:35:03,983 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:35:04,239 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:35:04,250 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:35:04,253 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:35:04,255 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:35:04,255 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:35:04,255 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c [2020-07-07 12:35:04,330 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c776b6387/301c9df941754cb0b281fe8355898215/FLAG13f9727d7 [2020-07-07 12:35:04,877 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:35:04,878 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c [2020-07-07 12:35:04,891 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c776b6387/301c9df941754cb0b281fe8355898215/FLAG13f9727d7 [2020-07-07 12:35:05,147 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c776b6387/301c9df941754cb0b281fe8355898215 [2020-07-07 12:35:05,156 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:35:05,158 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:35:05,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:35:05,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:35:05,162 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:35:05,163 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:35:05" (1/1) ... [2020-07-07 12:35:05,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a1a3246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:35:05, skipping insertion in model container [2020-07-07 12:35:05,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:35:05" (1/1) ... [2020-07-07 12:35:05,173 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:35:05,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:35:05,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:35:05,692 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:35:05,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:35:05,811 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:35:05,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:35:05 WrapperNode [2020-07-07 12:35:05,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:35:05,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:35:05,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:35:05,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:35:05,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:35:05" (1/1) ... [2020-07-07 12:35:05,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:35:05" (1/1) ... [2020-07-07 12:35:05,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:35:05" (1/1) ... [2020-07-07 12:35:05,843 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:35:05" (1/1) ... [2020-07-07 12:35:05,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:35:05" (1/1) ... [2020-07-07 12:35:05,904 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:35:05" (1/1) ... [2020-07-07 12:35:05,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:35:05" (1/1) ... [2020-07-07 12:35:05,917 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:35:05,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:35:05,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:35:05,918 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:35:05,919 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:35:05" (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 [2020-07-07 12:35:06,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:35:06,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:35:06,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:35:06,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:35:06,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:35:06,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:35:06,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:35:06,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:35:06,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:35:06,006 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:35:06,006 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:35:06,007 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:35:06,007 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:35:06,007 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:35:06,007 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:35:06,007 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-07 12:35:06,007 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-07 12:35:06,008 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:35:06,008 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:35:06,008 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:35:06,009 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:35:06,010 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:35:06,012 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:35:06,012 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:35:06,013 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:35:06,013 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:35:06,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:35:06,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:35:06,013 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:35:06,014 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:35:06,014 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 12:35:06,014 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-07 12:35:06,014 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:35:06,014 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-07-07 12:35:06,014 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:35:06,014 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:35:06,015 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:35:06,015 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:35:06,015 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:35:06,015 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-07 12:35:06,015 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-07 12:35:06,015 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-07 12:35:06,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:35:06,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:35:06,016 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:35:06,016 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:35:06,016 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:35:06,016 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:35:06,016 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:35:06,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:35:06,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:35:06,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:35:06,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:35:06,018 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:35:06,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:35:06,018 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:35:06,018 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:35:06,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:35:06,019 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:35:06,019 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:35:06,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:35:06,019 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:35:06,019 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:35:06,019 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:35:06,020 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:35:06,020 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:35:06,020 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:35:06,020 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:35:06,020 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-07 12:35:06,021 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-07 12:35:06,021 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:35:06,021 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:35:06,021 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:35:06,022 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:35:06,022 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:35:06,022 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:35:06,022 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:35:06,022 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:35:06,023 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:35:06,023 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:35:06,024 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:35:06,024 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:35:06,024 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:35:06,024 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:35:06,024 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:35:06,024 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-07 12:35:06,025 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:35:06,025 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:35:06,026 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:35:06,026 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 12:35:06,027 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-07 12:35:06,027 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-07 12:35:06,027 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-07 12:35:06,027 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-07-07 12:35:06,027 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:35:06,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:35:06,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:35:06,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:35:07,218 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:35:07,218 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:35:07,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:35:07 BoogieIcfgContainer [2020-07-07 12:35:07,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:35:07,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:35:07,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:35:07,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:35:07,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:35:05" (1/3) ... [2020-07-07 12:35:07,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bd365d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:35:07, skipping insertion in model container [2020-07-07 12:35:07,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:35:05" (2/3) ... [2020-07-07 12:35:07,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bd365d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:35:07, skipping insertion in model container [2020-07-07 12:35:07,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:35:07" (3/3) ... [2020-07-07 12:35:07,233 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product59.cil.c [2020-07-07 12:35:07,243 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:35:07,251 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:35:07,264 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:35:07,285 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:35:07,285 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:35:07,286 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:35:07,286 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:35:07,286 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:35:07,286 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:35:07,287 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:35:07,287 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:35:07,310 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states. [2020-07-07 12:35:07,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-07 12:35:07,332 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:35:07,333 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:35:07,334 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:35:07,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:35:07,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1122426674, now seen corresponding path program 1 times [2020-07-07 12:35:07,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:35:07,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2078366677] [2020-07-07 12:35:07,348 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:35:07,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:08,077 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:35:08,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:08,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:08,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:08,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:08,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:08,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:35:08,301 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:35:08,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2078366677] [2020-07-07 12:35:08,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:35:08,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 12:35:08,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72168245] [2020-07-07 12:35:08,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 12:35:08,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:35:08,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 12:35:08,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:35:08,329 INFO L87 Difference]: Start difference. First operand 346 states. Second operand 3 states. [2020-07-07 12:35:09,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:35:09,858 INFO L93 Difference]: Finished difference Result 561 states and 663 transitions. [2020-07-07 12:35:09,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 12:35:09,860 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-07 12:35:09,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:35:09,886 INFO L225 Difference]: With dead ends: 561 [2020-07-07 12:35:09,886 INFO L226 Difference]: Without dead ends: 340 [2020-07-07 12:35:09,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:35:09,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-07-07 12:35:10,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 295. [2020-07-07 12:35:10,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-07-07 12:35:10,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 322 transitions. [2020-07-07 12:35:10,110 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 322 transitions. Word has length 153 [2020-07-07 12:35:10,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:35:10,112 INFO L479 AbstractCegarLoop]: Abstraction has 295 states and 322 transitions. [2020-07-07 12:35:10,113 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 12:35:10,113 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 322 transitions. [2020-07-07 12:35:10,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-07 12:35:10,125 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:35:10,125 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:35:10,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:35:10,126 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:35:10,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:35:10,127 INFO L82 PathProgramCache]: Analyzing trace with hash -987340637, now seen corresponding path program 1 times [2020-07-07 12:35:10,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:35:10,127 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [848516769] [2020-07-07 12:35:10,128 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:35:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:10,481 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:35:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:10,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:10,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:10,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:35:10,549 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:35:10,550 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [848516769] [2020-07-07 12:35:10,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:35:10,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:35:10,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984743343] [2020-07-07 12:35:10,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:35:10,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:35:10,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:35:10,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:35:10,553 INFO L87 Difference]: Start difference. First operand 295 states and 322 transitions. Second operand 4 states. [2020-07-07 12:35:11,132 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:35:12,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:35:12,239 INFO L93 Difference]: Finished difference Result 472 states and 530 transitions. [2020-07-07 12:35:12,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 12:35:12,240 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-07-07 12:35:12,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:35:12,245 INFO L225 Difference]: With dead ends: 472 [2020-07-07 12:35:12,245 INFO L226 Difference]: Without dead ends: 323 [2020-07-07 12:35:12,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 12:35:12,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-07-07 12:35:12,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 285. [2020-07-07 12:35:12,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 285 states. [2020-07-07 12:35:12,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 309 transitions. [2020-07-07 12:35:12,324 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 309 transitions. Word has length 154 [2020-07-07 12:35:12,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:35:12,325 INFO L479 AbstractCegarLoop]: Abstraction has 285 states and 309 transitions. [2020-07-07 12:35:12,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:35:12,325 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 309 transitions. [2020-07-07 12:35:12,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-07 12:35:12,328 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:35:12,328 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:35:12,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:35:12,328 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:35:12,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:35:12,329 INFO L82 PathProgramCache]: Analyzing trace with hash 201269353, now seen corresponding path program 1 times [2020-07-07 12:35:12,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:35:12,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1909648365] [2020-07-07 12:35:12,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:35:12,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:12,648 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:35:12,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:12,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:12,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:12,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:35:12,790 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:35:12,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1909648365] [2020-07-07 12:35:12,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:35:12,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:35:12,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519623385] [2020-07-07 12:35:12,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:35:12,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:35:12,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:35:12,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:35:12,793 INFO L87 Difference]: Start difference. First operand 285 states and 309 transitions. Second operand 9 states. [2020-07-07 12:35:13,248 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:35:13,562 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:35:13,809 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:35:14,090 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:35:14,320 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:35:14,541 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:35:15,394 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:35:17,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:35:17,964 INFO L93 Difference]: Finished difference Result 781 states and 894 transitions. [2020-07-07 12:35:17,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 12:35:17,965 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-07-07 12:35:17,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:35:17,971 INFO L225 Difference]: With dead ends: 781 [2020-07-07 12:35:17,973 INFO L226 Difference]: Without dead ends: 606 [2020-07-07 12:35:17,975 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-07-07 12:35:17,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2020-07-07 12:35:18,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 535. [2020-07-07 12:35:18,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 535 states. [2020-07-07 12:35:18,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 598 transitions. [2020-07-07 12:35:18,203 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 598 transitions. Word has length 163 [2020-07-07 12:35:18,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:35:18,204 INFO L479 AbstractCegarLoop]: Abstraction has 535 states and 598 transitions. [2020-07-07 12:35:18,204 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:35:18,204 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 598 transitions. [2020-07-07 12:35:18,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-07-07 12:35:18,207 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:35:18,207 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:35:18,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:35:18,208 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:35:18,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:35:18,208 INFO L82 PathProgramCache]: Analyzing trace with hash 190259109, now seen corresponding path program 1 times [2020-07-07 12:35:18,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:35:18,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1899816552] [2020-07-07 12:35:18,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:35:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:18,512 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:35:18,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:18,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:18,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:18,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:18,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:18,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:18,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:18,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:35:18,656 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:35:18,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1899816552] [2020-07-07 12:35:18,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:35:18,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:35:18,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688149235] [2020-07-07 12:35:18,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:35:18,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:35:18,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:35:18,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:35:18,659 INFO L87 Difference]: Start difference. First operand 535 states and 598 transitions. Second operand 9 states. [2020-07-07 12:35:19,154 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:35:21,040 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:35:21,322 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:35:21,640 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:35:21,928 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:35:22,180 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:35:22,428 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:35:22,657 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:35:23,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:35:23,718 INFO L93 Difference]: Finished difference Result 1472 states and 1755 transitions. [2020-07-07 12:35:23,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 12:35:23,720 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-07-07 12:35:23,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:35:23,728 INFO L225 Difference]: With dead ends: 1472 [2020-07-07 12:35:23,728 INFO L226 Difference]: Without dead ends: 1047 [2020-07-07 12:35:23,730 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-07-07 12:35:23,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2020-07-07 12:35:23,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 943. [2020-07-07 12:35:23,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 943 states. [2020-07-07 12:35:23,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1077 transitions. [2020-07-07 12:35:23,983 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1077 transitions. Word has length 172 [2020-07-07 12:35:23,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:35:23,984 INFO L479 AbstractCegarLoop]: Abstraction has 943 states and 1077 transitions. [2020-07-07 12:35:23,984 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:35:23,984 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1077 transitions. [2020-07-07 12:35:23,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-07 12:35:23,989 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:35:23,989 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:35:23,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:35:23,990 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:35:23,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:35:23,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1697188589, now seen corresponding path program 1 times [2020-07-07 12:35:23,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:35:23,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1652197803] [2020-07-07 12:35:23,991 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:35:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:35:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:35:24,308 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:35:24,309 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:35:24,309 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:35:24,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:35:24,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:35:24 BoogieIcfgContainer [2020-07-07 12:35:24,332 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:35:24,333 INFO L168 Benchmark]: Toolchain (without parser) took 19176.13 ms. Allocated memory was 137.9 MB in the beginning and 626.0 MB in the end (delta: 488.1 MB). Free memory was 100.2 MB in the beginning and 552.5 MB in the end (delta: -452.3 MB). Peak memory consumption was 475.0 MB. Max. memory is 7.1 GB. [2020-07-07 12:35:24,334 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 12:35:24,335 INFO L168 Benchmark]: CACSL2BoogieTranslator took 653.33 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 100.0 MB in the beginning and 168.1 MB in the end (delta: -68.1 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2020-07-07 12:35:24,336 INFO L168 Benchmark]: Boogie Preprocessor took 104.46 ms. Allocated memory is still 201.3 MB. Free memory was 168.1 MB in the beginning and 163.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-07 12:35:24,337 INFO L168 Benchmark]: RCFGBuilder took 1307.57 ms. Allocated memory was 201.3 MB in the beginning and 231.2 MB in the end (delta: 29.9 MB). Free memory was 163.9 MB in the beginning and 170.0 MB in the end (delta: -6.1 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. [2020-07-07 12:35:24,338 INFO L168 Benchmark]: TraceAbstraction took 17105.80 ms. Allocated memory was 231.2 MB in the beginning and 626.0 MB in the end (delta: 394.8 MB). Free memory was 168.6 MB in the beginning and 552.5 MB in the end (delta: -383.9 MB). Peak memory consumption was 450.0 MB. Max. memory is 7.1 GB. [2020-07-07 12:35:24,342 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 653.33 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 100.0 MB in the beginning and 168.1 MB in the end (delta: -68.1 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.46 ms. Allocated memory is still 201.3 MB. Free memory was 168.1 MB in the beginning and 163.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1307.57 ms. Allocated memory was 201.3 MB in the beginning and 231.2 MB in the end (delta: 29.9 MB). Free memory was 163.9 MB in the beginning and 170.0 MB in the end (delta: -6.1 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17105.80 ms. Allocated memory was 231.2 MB in the beginning and 626.0 MB in the end (delta: 394.8 MB). Free memory was 168.6 MB in the beginning and 552.5 MB in the end (delta: -383.9 MB). Peak memory consumption was 450.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 694]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L414] int waterLevel = 1; [L415] int methaneLevelCritical = 0; [L517] int cleanupTimeShifts = 4; [L769] int pumpRunning = 0; [L770] int systemActive = 1; [L596] int retValue_acc ; [L597] int tmp ; [L601] FCALL select_helpers() [L602] FCALL select_features() [L603] CALL, EXPR valid_product() [L645] int retValue_acc ; [L648] retValue_acc = 1 [L649] return (retValue_acc); [L603] RET, EXPR valid_product() [L603] tmp = valid_product() [L605] COND TRUE \read(tmp) [L607] FCALL setup() [L608] CALL runTest() [L587] CALL test() [L701] int splverifierCounter ; [L702] int tmp ; [L703] int tmp___0 ; [L704] int tmp___1 ; [L705] int tmp___2 ; [L708] splverifierCounter = 0 [L710] COND TRUE 1 [L712] COND TRUE splverifierCounter < 4 [L718] tmp = __VERIFIER_nondet_int() [L720] COND TRUE \read(tmp) [L722] CALL waterRise() [L432] COND TRUE waterLevel < 2 [L433] waterLevel = waterLevel + 1 [L722] RET waterRise() [L728] tmp___0 = __VERIFIER_nondet_int() [L730] COND FALSE !(\read(tmp___0)) [L738] tmp___2 = __VERIFIER_nondet_int() [L740] COND FALSE !(\read(tmp___2)) [L744] tmp___1 = __VERIFIER_nondet_int() [L746] COND TRUE \read(tmp___1) [L748] CALL stopSystem() [L987] COND FALSE !(\read(pumpRunning)) [L994] systemActive = 0 [L748] RET stopSystem() [L755] CALL timeShift() [L776] COND FALSE !(\read(pumpRunning)) [L783] COND FALSE !(\read(systemActive)) [L791] CALL __utac_acc__Specification3_spec__1() [L657] int tmp ; [L658] int tmp___0 ; [L659] int tmp___1 ; [L663] CALL, EXPR isMethaneLevelCritical() [L453] int retValue_acc ; [L456] retValue_acc = methaneLevelCritical [L457] return (retValue_acc); [L663] RET, EXPR isMethaneLevelCritical() [L663] tmp = isMethaneLevelCritical() [L665] COND FALSE !(\read(tmp)) [L669] CALL, EXPR getWaterLevel() [L485] int retValue_acc ; [L488] retValue_acc = waterLevel [L489] return (retValue_acc); [L669] RET, EXPR getWaterLevel() [L669] tmp___0 = getWaterLevel() [L671] COND TRUE tmp___0 == 2 [L673] CALL, EXPR isPumpRunning() [L901] int retValue_acc ; [L904] retValue_acc = pumpRunning [L905] return (retValue_acc); [L673] RET, EXPR isPumpRunning() [L673] tmp___1 = isPumpRunning() [L675] COND FALSE !(\read(tmp___1)) [L679] CALL __automaton_fail() [L694] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 658 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 13.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1126 SDtfs, 1493 SDslu, 1394 SDs, 0 SdLazy, 3717 SolverSat, 464 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=943occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 4 MinimizatonAttempts, 258 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...