/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_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:33:00,887 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:33:00,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:33:00,907 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:33:00,908 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:33:00,910 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:33:00,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:33:00,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:33:00,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:33:00,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:33:00,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:33:00,925 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:33:00,925 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:33:00,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:33:00,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:33:00,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:33:00,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:33:00,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:33:00,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:33:00,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:33:00,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:33:00,935 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:33:00,936 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:33:00,937 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:33:00,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:33:00,939 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:33:00,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:33:00,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:33:00,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:33:00,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:33:00,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:33:00,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:33:00,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:33:00,944 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:33:00,945 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:33:00,946 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:33:00,946 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:33:00,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:33:00,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:33:00,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:33:00,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:33:00,949 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 12:33:00,958 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:33:00,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:33:00,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:33:00,959 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:33:00,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:33:00,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:33:00,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:33:00,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:33:00,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:33:00,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:33:00,961 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:33:00,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:33:00,961 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:33:00,961 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:33:00,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:33:00,962 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:33:00,962 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:33:00,962 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:33:00,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:33:00,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:33:00,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:33:00,963 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:33:00,963 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:33:01,268 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:33:01,282 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:33:01,286 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:33:01,288 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:33:01,288 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:33:01,289 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product17.cil.c [2020-07-07 12:33:01,363 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af8bfe44d/b4ce1076db604ffdba1bd25b17fa0e9b/FLAG67716ac37 [2020-07-07 12:33:01,884 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:33:01,885 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product17.cil.c [2020-07-07 12:33:01,910 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af8bfe44d/b4ce1076db604ffdba1bd25b17fa0e9b/FLAG67716ac37 [2020-07-07 12:33:02,167 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af8bfe44d/b4ce1076db604ffdba1bd25b17fa0e9b [2020-07-07 12:33:02,175 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:33:02,177 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:33:02,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:33:02,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:33:02,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:33:02,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:33:02" (1/1) ... [2020-07-07 12:33:02,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62b51e73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:02, skipping insertion in model container [2020-07-07 12:33:02,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:33:02" (1/1) ... [2020-07-07 12:33:02,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:33:02,237 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:33:02,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:33:02,645 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:33:02,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:33:02,850 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:33:02,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:02 WrapperNode [2020-07-07 12:33:02,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:33:02,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:33:02,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:33:02,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:33:02,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:02" (1/1) ... [2020-07-07 12:33:02,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:02" (1/1) ... [2020-07-07 12:33:02,880 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:02" (1/1) ... [2020-07-07 12:33:02,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:02" (1/1) ... [2020-07-07 12:33:02,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:02" (1/1) ... [2020-07-07 12:33:02,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:02" (1/1) ... [2020-07-07 12:33:02,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:02" (1/1) ... [2020-07-07 12:33:02,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:33:02,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:33:02,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:33:02,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:33:02,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:02" (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 12:33:03,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:33:03,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:33:03,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:33:03,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:33:03,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:33:03,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:33:03,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:33:03,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:33:03,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:33:03,008 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:33:03,008 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:33:03,008 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:33:03,008 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:33:03,008 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:33:03,009 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:33:03,009 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-07 12:33:03,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:33:03,009 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:33:03,009 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:33:03,009 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 12:33:03,010 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:33:03,010 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:33:03,010 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:33:03,010 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:33:03,010 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:33:03,011 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:33:03,011 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-07 12:33:03,011 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:33:03,011 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:33:03,011 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:33:03,011 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:33:03,012 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:33:03,012 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:33:03,012 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:33:03,012 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:33:03,012 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:33:03,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:33:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:33:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:33:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:33:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:33:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:33:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:33:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:33:03,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:33:03,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:33:03,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:33:03,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:33:03,014 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:33:03,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:33:03,015 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:33:03,015 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:33:03,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:33:03,015 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:33:03,015 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:33:03,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:33:03,016 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:33:03,016 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:33:03,016 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:33:03,016 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:33:03,016 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:33:03,016 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:33:03,016 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:33:03,017 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-07 12:33:03,017 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:33:03,017 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:33:03,017 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:33:03,017 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:33:03,017 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:33:03,017 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:33:03,018 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:33:03,018 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:33:03,018 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:33:03,018 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:33:03,018 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 12:33:03,018 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-07 12:33:03,019 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:33:03,019 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:33:03,019 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:33:03,019 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:33:03,019 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:33:03,019 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:33:03,020 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:33:03,020 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:33:03,020 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:33:03,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:33:03,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:33:03,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:33:04,194 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:33:04,194 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:33:04,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:33:04 BoogieIcfgContainer [2020-07-07 12:33:04,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:33:04,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:33:04,202 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:33:04,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:33:04,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:33:02" (1/3) ... [2020-07-07 12:33:04,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359d0a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:33:04, skipping insertion in model container [2020-07-07 12:33:04,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:02" (2/3) ... [2020-07-07 12:33:04,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359d0a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:33:04, skipping insertion in model container [2020-07-07 12:33:04,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:33:04" (3/3) ... [2020-07-07 12:33:04,209 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product17.cil.c [2020-07-07 12:33:04,220 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:33:04,229 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:33:04,244 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:33:04,267 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:33:04,268 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:33:04,268 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:33:04,268 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:33:04,268 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:33:04,269 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:33:04,269 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:33:04,269 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:33:04,302 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states. [2020-07-07 12:33:04,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-07 12:33:04,342 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:04,345 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 12:33:04,345 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:04,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:04,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1231247222, now seen corresponding path program 1 times [2020-07-07 12:33:04,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:04,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1701876227] [2020-07-07 12:33:04,361 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:05,027 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:05,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:05,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:05,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:05,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:05,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:05,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:05,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:05,258 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 12:33:05,259 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:05,261 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1701876227] [2020-07-07 12:33:05,263 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:05,263 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 12:33:05,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208812841] [2020-07-07 12:33:05,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 12:33:05,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:05,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 12:33:05,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:33:05,290 INFO L87 Difference]: Start difference. First operand 292 states. Second operand 3 states. [2020-07-07 12:33:06,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:06,467 INFO L93 Difference]: Finished difference Result 435 states and 517 transitions. [2020-07-07 12:33:06,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 12:33:06,469 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-07 12:33:06,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:06,485 INFO L225 Difference]: With dead ends: 435 [2020-07-07 12:33:06,485 INFO L226 Difference]: Without dead ends: 274 [2020-07-07 12:33:06,490 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 12:33:06,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-07-07 12:33:06,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 235. [2020-07-07 12:33:06,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-07-07 12:33:06,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 253 transitions. [2020-07-07 12:33:06,653 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 253 transitions. Word has length 153 [2020-07-07 12:33:06,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:06,654 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 253 transitions. [2020-07-07 12:33:06,654 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 12:33:06,655 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 253 transitions. [2020-07-07 12:33:06,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-07 12:33:06,659 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:06,659 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 12:33:06,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:33:06,660 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:06,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:06,660 INFO L82 PathProgramCache]: Analyzing trace with hash -606501768, now seen corresponding path program 1 times [2020-07-07 12:33:06,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:06,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [506114011] [2020-07-07 12:33:06,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:06,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:06,978 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:06,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:07,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:07,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:07,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:07,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:07,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:07,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:07,055 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 12:33:07,055 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:07,056 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [506114011] [2020-07-07 12:33:07,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:07,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:33:07,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412478763] [2020-07-07 12:33:07,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:33:07,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:07,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:33:07,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:33:07,062 INFO L87 Difference]: Start difference. First operand 235 states and 253 transitions. Second operand 4 states. [2020-07-07 12:33:07,677 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:33:08,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:08,467 INFO L93 Difference]: Finished difference Result 352 states and 392 transitions. [2020-07-07 12:33:08,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 12:33:08,467 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-07-07 12:33:08,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:08,474 INFO L225 Difference]: With dead ends: 352 [2020-07-07 12:33:08,474 INFO L226 Difference]: Without dead ends: 257 [2020-07-07 12:33:08,483 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 12:33:08,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-07-07 12:33:08,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 225. [2020-07-07 12:33:08,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-07-07 12:33:08,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 240 transitions. [2020-07-07 12:33:08,580 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 240 transitions. Word has length 154 [2020-07-07 12:33:08,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:08,583 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 240 transitions. [2020-07-07 12:33:08,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:33:08,583 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 240 transitions. [2020-07-07 12:33:08,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-07 12:33:08,585 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:08,586 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 12:33:08,586 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:33:08,586 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:08,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:08,588 INFO L82 PathProgramCache]: Analyzing trace with hash -897278278, now seen corresponding path program 1 times [2020-07-07 12:33:08,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:08,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1525004819] [2020-07-07 12:33:08,589 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:08,972 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:09,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:09,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:09,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:09,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:09,192 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 12:33:09,193 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:09,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1525004819] [2020-07-07 12:33:09,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:09,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:33:09,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957297928] [2020-07-07 12:33:09,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:33:09,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:09,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:33:09,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:33:09,197 INFO L87 Difference]: Start difference. First operand 225 states and 240 transitions. Second operand 9 states. [2020-07-07 12:33:09,974 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:33:10,467 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:33:10,724 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:33:10,954 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:11,190 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:33:11,407 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:12,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:12,608 INFO L93 Difference]: Finished difference Result 372 states and 417 transitions. [2020-07-07 12:33:12,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 12:33:12,609 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-07-07 12:33:12,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:12,613 INFO L225 Difference]: With dead ends: 372 [2020-07-07 12:33:12,613 INFO L226 Difference]: Without dead ends: 257 [2020-07-07 12:33:12,615 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-07-07 12:33:12,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-07-07 12:33:12,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 225. [2020-07-07 12:33:12,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-07-07 12:33:12,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 239 transitions. [2020-07-07 12:33:12,678 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 239 transitions. Word has length 163 [2020-07-07 12:33:12,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:12,678 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 239 transitions. [2020-07-07 12:33:12,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:33:12,679 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 239 transitions. [2020-07-07 12:33:12,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-07-07 12:33:12,681 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:12,681 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] [2020-07-07 12:33:12,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:33:12,682 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:12,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:12,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1060139161, now seen corresponding path program 1 times [2020-07-07 12:33:12,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:12,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1171487392] [2020-07-07 12:33:12,684 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:12,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:12,967 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:12,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:13,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:13,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:13,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:13,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:13,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:13,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:13,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:13,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:13,105 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 12:33:13,105 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:13,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1171487392] [2020-07-07 12:33:13,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:13,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:33:13,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561251477] [2020-07-07 12:33:13,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:33:13,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:13,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:33:13,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:33:13,108 INFO L87 Difference]: Start difference. First operand 225 states and 239 transitions. Second operand 9 states. [2020-07-07 12:33:13,727 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:33:15,387 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:15,681 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:33:15,992 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:16,258 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:33:16,484 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:33:16,729 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:16,967 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:17,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:17,556 INFO L93 Difference]: Finished difference Result 522 states and 613 transitions. [2020-07-07 12:33:17,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 12:33:17,557 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 171 [2020-07-07 12:33:17,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:17,561 INFO L225 Difference]: With dead ends: 522 [2020-07-07 12:33:17,561 INFO L226 Difference]: Without dead ends: 407 [2020-07-07 12:33:17,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-07-07 12:33:17,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2020-07-07 12:33:17,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 332. [2020-07-07 12:33:17,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-07-07 12:33:17,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 363 transitions. [2020-07-07 12:33:17,678 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 363 transitions. Word has length 171 [2020-07-07 12:33:17,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:17,679 INFO L479 AbstractCegarLoop]: Abstraction has 332 states and 363 transitions. [2020-07-07 12:33:17,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:33:17,679 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 363 transitions. [2020-07-07 12:33:17,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-07-07 12:33:17,682 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:17,683 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] [2020-07-07 12:33:17,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:33:17,683 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:17,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:17,684 INFO L82 PathProgramCache]: Analyzing trace with hash 558510229, now seen corresponding path program 1 times [2020-07-07 12:33:17,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:17,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1948535351] [2020-07-07 12:33:17,685 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:33:17,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:33:17,976 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:17,977 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:33:17,977 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:33:17,978 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:33:18,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:33:18 BoogieIcfgContainer [2020-07-07 12:33:18,001 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:33:18,003 INFO L168 Benchmark]: Toolchain (without parser) took 15825.54 ms. Allocated memory was 141.6 MB in the beginning and 562.0 MB in the end (delta: 420.5 MB). Free memory was 98.1 MB in the beginning and 305.3 MB in the end (delta: -207.2 MB). Peak memory consumption was 213.3 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:18,003 INFO L168 Benchmark]: CDTParser took 0.89 ms. Allocated memory is still 141.6 MB. Free memory was 117.0 MB in the beginning and 116.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 12:33:18,004 INFO L168 Benchmark]: CACSL2BoogieTranslator took 672.82 ms. Allocated memory was 141.6 MB in the beginning and 199.8 MB in the end (delta: 58.2 MB). Free memory was 97.8 MB in the beginning and 169.2 MB in the end (delta: -71.3 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:18,005 INFO L168 Benchmark]: Boogie Preprocessor took 84.26 ms. Allocated memory is still 199.8 MB. Free memory was 169.2 MB in the beginning and 164.8 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:18,006 INFO L168 Benchmark]: RCFGBuilder took 1265.19 ms. Allocated memory was 199.8 MB in the beginning and 226.5 MB in the end (delta: 26.7 MB). Free memory was 164.8 MB in the beginning and 177.1 MB in the end (delta: -12.3 MB). Peak memory consumption was 91.2 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:18,007 INFO L168 Benchmark]: TraceAbstraction took 13798.39 ms. Allocated memory was 226.5 MB in the beginning and 562.0 MB in the end (delta: 335.5 MB). Free memory was 175.7 MB in the beginning and 305.3 MB in the end (delta: -129.5 MB). Peak memory consumption was 206.0 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:18,011 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89 ms. Allocated memory is still 141.6 MB. Free memory was 117.0 MB in the beginning and 116.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 672.82 ms. Allocated memory was 141.6 MB in the beginning and 199.8 MB in the end (delta: 58.2 MB). Free memory was 97.8 MB in the beginning and 169.2 MB in the end (delta: -71.3 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 84.26 ms. Allocated memory is still 199.8 MB. Free memory was 169.2 MB in the beginning and 164.8 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1265.19 ms. Allocated memory was 199.8 MB in the beginning and 226.5 MB in the end (delta: 26.7 MB). Free memory was 164.8 MB in the beginning and 177.1 MB in the end (delta: -12.3 MB). Peak memory consumption was 91.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13798.39 ms. Allocated memory was 226.5 MB in the beginning and 562.0 MB in the end (delta: 335.5 MB). Free memory was 175.7 MB in the beginning and 305.3 MB in the end (delta: -129.5 MB). Peak memory consumption was 206.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 506]: 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; [L413] int waterLevel = 1; [L414] int methaneLevelCritical = 0; [L582] int pumpRunning = 0; [L583] int systemActive = 1; [L735] int cleanupTimeShifts = 4; [L811] int retValue_acc ; [L812] int tmp ; [L816] FCALL select_helpers() [L817] FCALL select_features() [L818] CALL, EXPR valid_product() [L860] int retValue_acc ; [L863] retValue_acc = 1 [L864] return (retValue_acc); [L818] RET, EXPR valid_product() [L818] tmp = valid_product() [L820] COND TRUE \read(tmp) [L822] FCALL setup() [L823] CALL runTest() [L802] CALL test() [L514] int splverifierCounter ; [L515] int tmp ; [L516] int tmp___0 ; [L517] int tmp___1 ; [L518] int tmp___2 ; [L521] splverifierCounter = 0 [L523] COND TRUE 1 [L525] COND TRUE splverifierCounter < 4 [L531] tmp = __VERIFIER_nondet_int() [L533] COND TRUE \read(tmp) [L535] CALL waterRise() [L431] COND TRUE waterLevel < 2 [L432] waterLevel = waterLevel + 1 [L535] RET waterRise() [L541] tmp___0 = __VERIFIER_nondet_int() [L543] COND FALSE !(\read(tmp___0)) [L551] tmp___2 = __VERIFIER_nondet_int() [L553] COND TRUE \read(tmp___2) [L566] CALL timeShift() [L590] COND FALSE !(\read(pumpRunning)) [L597] COND TRUE \read(systemActive) [L599] CALL processEnvironment() [L619] int tmp ; [L622] COND FALSE !(\read(pumpRunning)) [L637] FCALL processEnvironment__wrappee__base() [L599] RET processEnvironment() [L605] CALL __utac_acc__Specification3_spec__1() [L870] int tmp ; [L871] int tmp___0 ; [L872] int tmp___1 ; [L876] CALL, EXPR isMethaneLevelCritical() [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); [L876] RET, EXPR isMethaneLevelCritical() [L876] tmp = isMethaneLevelCritical() [L878] COND FALSE !(\read(tmp)) [L882] CALL, EXPR getWaterLevel() [L484] int retValue_acc ; [L487] retValue_acc = waterLevel [L488] return (retValue_acc); [L882] RET, EXPR getWaterLevel() [L882] tmp___0 = getWaterLevel() [L884] COND TRUE tmp___0 == 2 [L886] CALL, EXPR isPumpRunning() [L671] int retValue_acc ; [L674] retValue_acc = pumpRunning [L675] return (retValue_acc); [L886] RET, EXPR isPumpRunning() [L886] tmp___1 = isPumpRunning() [L888] COND FALSE !(\read(tmp___1)) [L892] CALL __automaton_fail() [L506] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 609 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 10.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 858 SDtfs, 933 SDslu, 1196 SDs, 0 SdLazy, 2257 SolverSat, 266 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=332occurred 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: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 178 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...