java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:49:05,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:49:05,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:49:05,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:49:05,914 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:49:05,915 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:49:05,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:49:05,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:49:05,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:49:05,921 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:49:05,922 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:49:05,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:49:05,924 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:49:05,925 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:49:05,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:49:05,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:49:05,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:49:05,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:49:05,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:49:05,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:49:05,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:49:05,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:49:05,938 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:49:05,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:49:05,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:49:05,942 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:49:05,942 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:49:05,943 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:49:05,943 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:49:05,944 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:49:05,945 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:49:05,945 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:49:05,946 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:49:05,947 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:49:05,948 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:49:05,948 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:49:05,949 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:49:05,949 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:49:05,949 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:49:05,950 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:49:05,951 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:49:05,952 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 [2019-09-10 02:49:05,968 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:49:05,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:49:05,968 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:49:05,969 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:49:05,969 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:49:05,970 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:49:05,970 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:49:05,970 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:49:05,970 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:49:05,970 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:49:05,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:49:05,971 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:49:05,972 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:49:05,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:49:05,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:49:05,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:49:05,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:49:05,973 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:49:05,973 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:49:05,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:49:05,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:49:05,973 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:49:05,974 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:49:05,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:49:05,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:49:05,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:49:05,974 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:49:05,975 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:49:05,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:49:05,975 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:49:06,005 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:49:06,021 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:49:06,024 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:49:06,026 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:49:06,026 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:49:06,027 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c [2019-09-10 02:49:06,095 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c2edb2b8/1596770cff034df1a1fee7610dd97c85/FLAGabdea63c5 [2019-09-10 02:49:06,615 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:49:06,616 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c [2019-09-10 02:49:06,635 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c2edb2b8/1596770cff034df1a1fee7610dd97c85/FLAGabdea63c5 [2019-09-10 02:49:06,933 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c2edb2b8/1596770cff034df1a1fee7610dd97c85 [2019-09-10 02:49:06,943 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:49:06,944 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:49:06,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:49:06,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:49:06,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:49:06,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:49:06" (1/1) ... [2019-09-10 02:49:06,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cd79fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:06, skipping insertion in model container [2019-09-10 02:49:06,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:49:06" (1/1) ... [2019-09-10 02:49:06,965 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:49:07,029 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:49:07,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:49:07,480 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:49:07,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:49:07,628 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:49:07,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:07 WrapperNode [2019-09-10 02:49:07,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:49:07,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:49:07,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:49:07,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:49:07,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:07" (1/1) ... [2019-09-10 02:49:07,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:07" (1/1) ... [2019-09-10 02:49:07,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:07" (1/1) ... [2019-09-10 02:49:07,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:07" (1/1) ... [2019-09-10 02:49:07,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:07" (1/1) ... [2019-09-10 02:49:07,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:07" (1/1) ... [2019-09-10 02:49:07,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:07" (1/1) ... [2019-09-10 02:49:07,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:49:07,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:49:07,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:49:07,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:49:07,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:07" (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 [2019-09-10 02:49:07,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:49:07,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:49:07,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:49:07,789 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:49:07,789 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:49:07,789 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:49:07,789 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:49:07,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:49:07,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:49:07,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:49:07,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:49:07,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:49:07,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:49:07,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:49:07,791 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:49:07,791 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:49:07,791 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:49:07,791 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:49:07,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:49:07,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:49:07,792 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:49:07,792 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-10 02:49:07,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-09-10 02:49:07,792 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:49:07,793 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:49:07,793 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:49:07,793 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:49:07,793 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:49:07,793 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:49:07,793 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:49:07,794 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:49:07,794 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:49:07,794 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:49:07,794 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:49:07,794 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:49:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:49:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:49:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:49:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:49:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:49:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:49:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:49:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:49:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:49:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:49:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:49:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:49:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:49:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:49:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:49:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:49:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:49:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:49:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:49:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:49:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:49:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:49:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:49:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:49:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:49:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:49:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:49:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:49:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:49:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:49:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:49:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:49:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:49:07,800 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-10 02:49:07,800 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-09-10 02:49:07,800 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:49:07,800 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:49:07,800 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:49:07,800 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:49:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:49:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:49:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:49:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:49:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:49:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:49:07,802 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:49:07,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:49:07,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:49:07,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:49:08,890 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:49:08,891 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:49:08,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:49:08 BoogieIcfgContainer [2019-09-10 02:49:08,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:49:08,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:49:08,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:49:08,898 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:49:08,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:49:06" (1/3) ... [2019-09-10 02:49:08,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a9a0be2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:49:08, skipping insertion in model container [2019-09-10 02:49:08,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:07" (2/3) ... [2019-09-10 02:49:08,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a9a0be2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:49:08, skipping insertion in model container [2019-09-10 02:49:08,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:49:08" (3/3) ... [2019-09-10 02:49:08,920 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product02.cil.c [2019-09-10 02:49:08,931 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:49:08,938 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:49:08,953 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:49:08,975 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:49:08,975 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:49:08,975 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:49:08,976 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:49:08,976 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:49:08,976 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:49:08,976 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:49:08,977 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:49:08,999 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states. [2019-09-10 02:49:09,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 02:49:09,012 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:09,013 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:09,016 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:09,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:09,023 INFO L82 PathProgramCache]: Analyzing trace with hash 761454740, now seen corresponding path program 1 times [2019-09-10 02:49:09,026 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:09,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:09,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:09,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:09,076 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:09,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:09,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:09,447 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:09,448 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:49:09,449 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:09,454 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:49:09,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:49:09,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:49:09,469 INFO L87 Difference]: Start difference. First operand 137 states. Second operand 2 states. [2019-09-10 02:49:09,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:09,515 INFO L93 Difference]: Finished difference Result 102 states and 117 transitions. [2019-09-10 02:49:09,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:49:09,517 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-09-10 02:49:09,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:09,537 INFO L225 Difference]: With dead ends: 102 [2019-09-10 02:49:09,537 INFO L226 Difference]: Without dead ends: 91 [2019-09-10 02:49:09,542 INFO L628 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 [2019-09-10 02:49:09,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-09-10 02:49:09,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2019-09-10 02:49:09,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-09-10 02:49:09,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 105 transitions. [2019-09-10 02:49:09,641 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 105 transitions. Word has length 52 [2019-09-10 02:49:09,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:09,651 INFO L475 AbstractCegarLoop]: Abstraction has 91 states and 105 transitions. [2019-09-10 02:49:09,652 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:49:09,652 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 105 transitions. [2019-09-10 02:49:09,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-09-10 02:49:09,659 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:09,659 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:09,659 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:09,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:09,660 INFO L82 PathProgramCache]: Analyzing trace with hash -873378410, now seen corresponding path program 1 times [2019-09-10 02:49:09,660 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:09,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:09,661 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:09,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:09,661 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:09,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:09,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:09,796 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:09,796 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:49:09,796 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:09,797 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:49:09,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:49:09,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:49:09,798 INFO L87 Difference]: Start difference. First operand 91 states and 105 transitions. Second operand 3 states. [2019-09-10 02:49:09,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:09,811 INFO L93 Difference]: Finished difference Result 82 states and 93 transitions. [2019-09-10 02:49:09,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:49:09,812 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-09-10 02:49:09,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:09,814 INFO L225 Difference]: With dead ends: 82 [2019-09-10 02:49:09,814 INFO L226 Difference]: Without dead ends: 82 [2019-09-10 02:49:09,815 INFO L628 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 [2019-09-10 02:49:09,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-09-10 02:49:09,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2019-09-10 02:49:09,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-09-10 02:49:09,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 93 transitions. [2019-09-10 02:49:09,825 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 93 transitions. Word has length 53 [2019-09-10 02:49:09,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:09,826 INFO L475 AbstractCegarLoop]: Abstraction has 82 states and 93 transitions. [2019-09-10 02:49:09,826 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:49:09,826 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 93 transitions. [2019-09-10 02:49:09,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-09-10 02:49:09,828 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:09,828 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:09,828 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:09,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:09,829 INFO L82 PathProgramCache]: Analyzing trace with hash -646748837, now seen corresponding path program 1 times [2019-09-10 02:49:09,829 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:09,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:09,830 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:09,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:09,830 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:09,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:09,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:09,992 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:09,992 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:49:09,992 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:09,993 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:49:09,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:49:09,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:49:09,994 INFO L87 Difference]: Start difference. First operand 82 states and 93 transitions. Second operand 7 states. [2019-09-10 02:49:10,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:10,246 INFO L93 Difference]: Finished difference Result 82 states and 92 transitions. [2019-09-10 02:49:10,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:49:10,246 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2019-09-10 02:49:10,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:10,248 INFO L225 Difference]: With dead ends: 82 [2019-09-10 02:49:10,248 INFO L226 Difference]: Without dead ends: 82 [2019-09-10 02:49:10,249 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:49:10,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-09-10 02:49:10,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2019-09-10 02:49:10,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-09-10 02:49:10,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 92 transitions. [2019-09-10 02:49:10,257 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 92 transitions. Word has length 58 [2019-09-10 02:49:10,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:10,258 INFO L475 AbstractCegarLoop]: Abstraction has 82 states and 92 transitions. [2019-09-10 02:49:10,258 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:49:10,258 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 92 transitions. [2019-09-10 02:49:10,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-10 02:49:10,260 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:10,260 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:10,261 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:10,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:10,261 INFO L82 PathProgramCache]: Analyzing trace with hash 387624930, now seen corresponding path program 1 times [2019-09-10 02:49:10,261 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:10,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:10,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:10,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:10,263 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:10,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:10,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:10,391 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:10,392 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:49:10,392 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:10,392 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:49:10,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:49:10,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:49:10,393 INFO L87 Difference]: Start difference. First operand 82 states and 92 transitions. Second operand 6 states. [2019-09-10 02:49:10,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:10,610 INFO L93 Difference]: Finished difference Result 129 states and 149 transitions. [2019-09-10 02:49:10,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:49:10,613 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2019-09-10 02:49:10,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:10,623 INFO L225 Difference]: With dead ends: 129 [2019-09-10 02:49:10,623 INFO L226 Difference]: Without dead ends: 129 [2019-09-10 02:49:10,623 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-10 02:49:10,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-09-10 02:49:10,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 127. [2019-09-10 02:49:10,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2019-09-10 02:49:10,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 147 transitions. [2019-09-10 02:49:10,641 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 147 transitions. Word has length 61 [2019-09-10 02:49:10,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:10,660 INFO L475 AbstractCegarLoop]: Abstraction has 127 states and 147 transitions. [2019-09-10 02:49:10,660 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:49:10,660 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 147 transitions. [2019-09-10 02:49:10,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-10 02:49:10,662 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:10,662 INFO L399 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] [2019-09-10 02:49:10,663 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:10,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:10,663 INFO L82 PathProgramCache]: Analyzing trace with hash 914156220, now seen corresponding path program 1 times [2019-09-10 02:49:10,663 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:10,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:10,664 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:10,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:10,665 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:10,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:10,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:10,776 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:10,780 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:49:10,780 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:10,780 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:49:10,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:49:10,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:49:10,781 INFO L87 Difference]: Start difference. First operand 127 states and 147 transitions. Second operand 3 states. [2019-09-10 02:49:10,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:10,795 INFO L93 Difference]: Finished difference Result 121 states and 136 transitions. [2019-09-10 02:49:10,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:49:10,795 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2019-09-10 02:49:10,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:10,797 INFO L225 Difference]: With dead ends: 121 [2019-09-10 02:49:10,797 INFO L226 Difference]: Without dead ends: 121 [2019-09-10 02:49:10,798 INFO L628 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 [2019-09-10 02:49:10,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-09-10 02:49:10,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2019-09-10 02:49:10,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-09-10 02:49:10,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 136 transitions. [2019-09-10 02:49:10,819 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 136 transitions. Word has length 65 [2019-09-10 02:49:10,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:10,820 INFO L475 AbstractCegarLoop]: Abstraction has 121 states and 136 transitions. [2019-09-10 02:49:10,820 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:49:10,822 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 136 transitions. [2019-09-10 02:49:10,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-10 02:49:10,824 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:10,824 INFO L399 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] [2019-09-10 02:49:10,824 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:10,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:10,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1045725272, now seen corresponding path program 1 times [2019-09-10 02:49:10,825 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:10,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:10,829 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:10,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:10,829 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:11,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 02:49:11,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 02:49:11,965 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-10 02:49:12,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:49:12 BoogieIcfgContainer [2019-09-10 02:49:12,113 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:49:12,118 INFO L168 Benchmark]: Toolchain (without parser) took 5171.08 ms. Allocated memory was 134.2 MB in the beginning and 258.5 MB in the end (delta: 124.3 MB). Free memory was 89.1 MB in the beginning and 191.5 MB in the end (delta: -102.4 MB). Peak memory consumption was 134.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:12,119 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 134.2 MB. Free memory was 108.7 MB in the beginning and 108.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:49:12,121 INFO L168 Benchmark]: CACSL2BoogieTranslator took 684.49 ms. Allocated memory was 134.2 MB in the beginning and 200.8 MB in the end (delta: 66.6 MB). Free memory was 88.9 MB in the beginning and 166.6 MB in the end (delta: -77.7 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:12,122 INFO L168 Benchmark]: Boogie Preprocessor took 88.79 ms. Allocated memory is still 200.8 MB. Free memory was 166.6 MB in the beginning and 162.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:12,123 INFO L168 Benchmark]: RCFGBuilder took 1173.86 ms. Allocated memory is still 200.8 MB. Free memory was 162.2 MB in the beginning and 81.7 MB in the end (delta: 80.5 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:12,124 INFO L168 Benchmark]: TraceAbstraction took 3219.11 ms. Allocated memory was 200.8 MB in the beginning and 258.5 MB in the end (delta: 57.7 MB). Free memory was 81.7 MB in the beginning and 191.5 MB in the end (delta: -109.8 MB). Peak memory consumption was 60.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:12,131 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 134.2 MB. Free memory was 108.7 MB in the beginning and 108.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 684.49 ms. Allocated memory was 134.2 MB in the beginning and 200.8 MB in the end (delta: 66.6 MB). Free memory was 88.9 MB in the beginning and 166.6 MB in the end (delta: -77.7 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.79 ms. Allocated memory is still 200.8 MB. Free memory was 166.6 MB in the beginning and 162.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1173.86 ms. Allocated memory is still 200.8 MB. Free memory was 162.2 MB in the beginning and 81.7 MB in the end (delta: 80.5 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3219.11 ms. Allocated memory was 200.8 MB in the beginning and 258.5 MB in the end (delta: 57.7 MB). Free memory was 81.7 MB in the beginning and 191.5 MB in the end (delta: -109.8 MB). Peak memory consumption was 60.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 82]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L256] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L462] int pumpRunning = 0; [L463] int systemActive = 1; [L683] int cleanupTimeShifts = 4; [L779] int waterLevel = 1; [L780] int methaneLevelCritical = 0; [L756] int retValue_acc ; [L757] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L761] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L762] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L763] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L763] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L763] tmp = valid_product() [L765] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L767] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L768] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L750] CALL test() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L617] int splverifierCounter ; [L618] int tmp ; [L619] int tmp___0 ; [L620] int tmp___1 ; [L621] int tmp___2 ; [L624] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L626] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L628] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L634] tmp = __VERIFIER_nondet_int() [L636] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L638] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L797] COND TRUE waterLevel < 2 [L798] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L638] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L644] tmp___0 = __VERIFIER_nondet_int() [L646] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L654] tmp___2 = __VERIFIER_nondet_int() [L656] COND FALSE !(\read(tmp___2)) [L662] tmp___1 = __VERIFIER_nondet_int() [L664] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L671] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L470] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L477] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L479] FCALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L485] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L580] int tmp ; [L581] int tmp___0 ; [L582] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L586] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L818] int retValue_acc ; [L821] retValue_acc = methaneLevelCritical [L822] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L586] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L586] tmp = isMethaneLevelCritical() [L588] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L592] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L850] int retValue_acc ; [L853] retValue_acc = waterLevel [L854] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L592] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L592] tmp___0 = getWaterLevel() [L594] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L596] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L525] int retValue_acc ; [L528] retValue_acc = pumpRunning [L529] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L596] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L596] tmp___1 = isPumpRunning() [L598] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L602] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L82] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 201 locations, 1 error locations. UNSAFE Result, 3.1s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 479 SDtfs, 196 SDslu, 592 SDs, 0 SdLazy, 145 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=137occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 354 NumberOfCodeBlocks, 354 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 284 ConstructedInterpolants, 0 QuantifiedInterpolants, 27840 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...