/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 20:51:20,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 20:51:20,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 20:51:20,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 20:51:20,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 20:51:20,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 20:51:20,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 20:51:20,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 20:51:20,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 20:51:20,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 20:51:20,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 20:51:20,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 20:51:20,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 20:51:20,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 20:51:20,673 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 20:51:20,678 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 20:51:20,679 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 20:51:20,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 20:51:20,682 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 20:51:20,684 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 20:51:20,685 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 20:51:20,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 20:51:20,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 20:51:20,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 20:51:20,691 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 20:51:20,691 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 20:51:20,691 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 20:51:20,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 20:51:20,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 20:51:20,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 20:51:20,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 20:51:20,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 20:51:20,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 20:51:20,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 20:51:20,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 20:51:20,698 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 20:51:20,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 20:51:20,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 20:51:20,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 20:51:20,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 20:51:20,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 20:51:20,702 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 20:51:20,714 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 20:51:20,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 20:51:20,716 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 20:51:20,716 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 20:51:20,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 20:51:20,716 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 20:51:20,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 20:51:20,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 20:51:20,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 20:51:20,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 20:51:20,717 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 20:51:20,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 20:51:20,717 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 20:51:20,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 20:51:20,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 20:51:20,718 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 20:51:20,718 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 20:51:20,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 20:51:20,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 20:51:20,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 20:51:20,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 20:51:20,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 20:51:20,720 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-09-04 20:51:21,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 20:51:21,188 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 20:51:21,191 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 20:51:21,193 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 20:51:21,193 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 20:51:21,194 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c [2020-09-04 20:51:21,264 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d7d5e4e36/02b8611e57ab4b26849841ed0d217681/FLAG505f6517f [2020-09-04 20:51:21,868 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 20:51:21,869 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c [2020-09-04 20:51:21,891 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d7d5e4e36/02b8611e57ab4b26849841ed0d217681/FLAG505f6517f [2020-09-04 20:51:22,122 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d7d5e4e36/02b8611e57ab4b26849841ed0d217681 [2020-09-04 20:51:22,136 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 20:51:22,138 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 20:51:22,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 20:51:22,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 20:51:22,144 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 20:51:22,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:51:22" (1/1) ... [2020-09-04 20:51:22,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c53af82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:51:22, skipping insertion in model container [2020-09-04 20:51:22,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:51:22" (1/1) ... [2020-09-04 20:51:22,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 20:51:22,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 20:51:22,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:51:22,747 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 20:51:22,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:51:22,929 INFO L208 MainTranslator]: Completed translation [2020-09-04 20:51:22,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:51:22 WrapperNode [2020-09-04 20:51:22,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 20:51:22,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 20:51:22,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 20:51:22,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 20:51:22,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:51:22" (1/1) ... [2020-09-04 20:51:22,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:51:22" (1/1) ... [2020-09-04 20:51:22,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:51:22" (1/1) ... [2020-09-04 20:51:22,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:51:22" (1/1) ... [2020-09-04 20:51:23,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:51:22" (1/1) ... [2020-09-04 20:51:23,033 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:51:22" (1/1) ... [2020-09-04 20:51:23,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:51:22" (1/1) ... [2020-09-04 20:51:23,067 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 20:51:23,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 20:51:23,068 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 20:51:23,068 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 20:51:23,070 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:51:22" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 20:51:23,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 20:51:23,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 20:51:23,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 20:51:23,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 20:51:23,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 20:51:23,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 20:51:23,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 20:51:23,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 20:51:23,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 20:51:23,168 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 20:51:23,169 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 20:51:23,169 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 20:51:23,169 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 20:51:23,169 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 20:51:23,169 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 20:51:23,170 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-04 20:51:23,170 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-04 20:51:23,171 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 20:51:23,171 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 20:51:23,172 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 20:51:23,172 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 20:51:23,172 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 20:51:23,173 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 20:51:23,173 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 20:51:23,174 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 20:51:23,174 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 20:51:23,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-04 20:51:23,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 20:51:23,174 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 20:51:23,174 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 20:51:23,175 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-04 20:51:23,175 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-04 20:51:23,176 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 20:51:23,176 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-04 20:51:23,176 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 20:51:23,176 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 20:51:23,176 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 20:51:23,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 20:51:23,177 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 20:51:23,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-04 20:51:23,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-04 20:51:23,177 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-04 20:51:23,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 20:51:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 20:51:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 20:51:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 20:51:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 20:51:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 20:51:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 20:51:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 20:51:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 20:51:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 20:51:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 20:51:23,180 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 20:51:23,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 20:51:23,180 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 20:51:23,180 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 20:51:23,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 20:51:23,180 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 20:51:23,180 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 20:51:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 20:51:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 20:51:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 20:51:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 20:51:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 20:51:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 20:51:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 20:51:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 20:51:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-04 20:51:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-04 20:51:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 20:51:23,183 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 20:51:23,183 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 20:51:23,183 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 20:51:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 20:51:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 20:51:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 20:51:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 20:51:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 20:51:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 20:51:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 20:51:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 20:51:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 20:51:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 20:51:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-04 20:51:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-04 20:51:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 20:51:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 20:51:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 20:51:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-04 20:51:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-04 20:51:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-04 20:51:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-04 20:51:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-04 20:51:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 20:51:23,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 20:51:23,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 20:51:23,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 20:51:24,395 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 20:51:24,395 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 20:51:24,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:51:24 BoogieIcfgContainer [2020-09-04 20:51:24,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 20:51:24,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 20:51:24,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 20:51:24,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 20:51:24,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 08:51:22" (1/3) ... [2020-09-04 20:51:24,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55679020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:51:24, skipping insertion in model container [2020-09-04 20:51:24,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:51:22" (2/3) ... [2020-09-04 20:51:24,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55679020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:51:24, skipping insertion in model container [2020-09-04 20:51:24,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:51:24" (3/3) ... [2020-09-04 20:51:24,413 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product59.cil.c [2020-09-04 20:51:24,424 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 20:51:24,434 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 20:51:24,457 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 20:51:24,482 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 20:51:24,482 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 20:51:24,482 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 20:51:24,483 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 20:51:24,483 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 20:51:24,483 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 20:51:24,483 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 20:51:24,483 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 20:51:24,508 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states. [2020-09-04 20:51:24,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-04 20:51:24,533 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:51:24,535 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] [2020-09-04 20:51:24,535 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:51:24,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:51:24,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1122426674, now seen corresponding path program 1 times [2020-09-04 20:51:24,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:51:24,553 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [336295359] [2020-09-04 20:51:24,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:51:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:25,436 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:51:25,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:51:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:25,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:51:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:25,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:51:25,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:25,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:51:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:25,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:51:25,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:25,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 20:51:25,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:25,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 20:51:25,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:25,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 20:51:25,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:25,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:51:25,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [336295359] [2020-09-04 20:51:25,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:51:25,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 20:51:25,687 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151323623] [2020-09-04 20:51:25,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 20:51:25,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:51:25,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 20:51:25,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 20:51:25,715 INFO L87 Difference]: Start difference. First operand 346 states. Second operand 3 states. [2020-09-04 20:51:27,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:51:27,186 INFO L93 Difference]: Finished difference Result 561 states and 663 transitions. [2020-09-04 20:51:27,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 20:51:27,188 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-04 20:51:27,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:51:27,210 INFO L225 Difference]: With dead ends: 561 [2020-09-04 20:51:27,210 INFO L226 Difference]: Without dead ends: 340 [2020-09-04 20:51:27,217 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 20:51:27,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-09-04 20:51:27,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 295. [2020-09-04 20:51:27,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-09-04 20:51:27,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 322 transitions. [2020-09-04 20:51:27,377 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 322 transitions. Word has length 153 [2020-09-04 20:51:27,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:51:27,378 INFO L479 AbstractCegarLoop]: Abstraction has 295 states and 322 transitions. [2020-09-04 20:51:27,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 20:51:27,379 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 322 transitions. [2020-09-04 20:51:27,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-04 20:51:27,384 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:51:27,384 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] [2020-09-04 20:51:27,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 20:51:27,385 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:51:27,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:51:27,385 INFO L82 PathProgramCache]: Analyzing trace with hash -987340637, now seen corresponding path program 1 times [2020-09-04 20:51:27,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:51:27,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1826070332] [2020-09-04 20:51:27,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:51:27,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:27,849 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:51:27,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:51:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:27,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:51:27,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:27,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:51:27,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:27,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:51:27,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:27,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:51:27,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:27,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-04 20:51:27,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:27,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 20:51:27,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:27,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-04 20:51:27,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:27,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:51:27,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1826070332] [2020-09-04 20:51:27,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:51:27,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 20:51:27,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462976752] [2020-09-04 20:51:27,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 20:51:27,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:51:27,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 20:51:27,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 20:51:27,940 INFO L87 Difference]: Start difference. First operand 295 states and 322 transitions. Second operand 4 states. [2020-09-04 20:51:28,590 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:51:29,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:51:29,873 INFO L93 Difference]: Finished difference Result 472 states and 530 transitions. [2020-09-04 20:51:29,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 20:51:29,874 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-04 20:51:29,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:51:29,879 INFO L225 Difference]: With dead ends: 472 [2020-09-04 20:51:29,879 INFO L226 Difference]: Without dead ends: 323 [2020-09-04 20:51:29,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 20:51:29,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-09-04 20:51:29,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 285. [2020-09-04 20:51:29,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 285 states. [2020-09-04 20:51:29,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 309 transitions. [2020-09-04 20:51:29,978 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 309 transitions. Word has length 154 [2020-09-04 20:51:29,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:51:29,979 INFO L479 AbstractCegarLoop]: Abstraction has 285 states and 309 transitions. [2020-09-04 20:51:29,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 20:51:29,980 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 309 transitions. [2020-09-04 20:51:29,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-04 20:51:29,983 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:51:29,983 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] [2020-09-04 20:51:29,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 20:51:29,983 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:51:29,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:51:29,984 INFO L82 PathProgramCache]: Analyzing trace with hash 201269353, now seen corresponding path program 1 times [2020-09-04 20:51:29,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:51:29,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55183260] [2020-09-04 20:51:29,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:51:30,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:30,383 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:51:30,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:51:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:30,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:51:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:30,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:51:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:30,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:51:30,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:30,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:51:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:30,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 20:51:30,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:30,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 20:51:30,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:30,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-04 20:51:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:30,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:51:30,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55183260] [2020-09-04 20:51:30,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:51:30,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 20:51:30,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599281569] [2020-09-04 20:51:30,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 20:51:30,589 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:51:30,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 20:51:30,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 20:51:30,590 INFO L87 Difference]: Start difference. First operand 285 states and 309 transitions. Second operand 9 states. [2020-09-04 20:51:31,136 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:51:31,532 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:51:31,839 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 20:51:32,171 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:51:32,470 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:51:32,764 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:51:33,793 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:51:36,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:51:36,757 INFO L93 Difference]: Finished difference Result 781 states and 894 transitions. [2020-09-04 20:51:36,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 20:51:36,758 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-09-04 20:51:36,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:51:36,764 INFO L225 Difference]: With dead ends: 781 [2020-09-04 20:51:36,765 INFO L226 Difference]: Without dead ends: 606 [2020-09-04 20:51:36,766 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-09-04 20:51:36,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2020-09-04 20:51:37,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 535. [2020-09-04 20:51:37,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 535 states. [2020-09-04 20:51:37,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 598 transitions. [2020-09-04 20:51:37,007 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 598 transitions. Word has length 163 [2020-09-04 20:51:37,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:51:37,008 INFO L479 AbstractCegarLoop]: Abstraction has 535 states and 598 transitions. [2020-09-04 20:51:37,008 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 20:51:37,008 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 598 transitions. [2020-09-04 20:51:37,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-04 20:51:37,011 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:51:37,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:51:37,012 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 20:51:37,012 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:51:37,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:51:37,013 INFO L82 PathProgramCache]: Analyzing trace with hash 190259109, now seen corresponding path program 1 times [2020-09-04 20:51:37,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:51:37,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1951137048] [2020-09-04 20:51:37,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:51:37,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:37,386 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:51:37,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:51:37,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:37,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:51:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:37,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:51:37,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:37,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:51:37,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:37,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:51:37,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:37,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 20:51:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:37,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-04 20:51:37,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:37,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-04 20:51:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:37,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-04 20:51:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:51:37,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:51:37,581 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1951137048] [2020-09-04 20:51:37,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:51:37,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 20:51:37,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218290127] [2020-09-04 20:51:37,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 20:51:37,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:51:37,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 20:51:37,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 20:51:37,583 INFO L87 Difference]: Start difference. First operand 535 states and 598 transitions. Second operand 9 states. [2020-09-04 20:51:38,073 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:51:40,277 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:51:40,640 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:51:41,016 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:51:41,381 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:51:41,704 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:51:42,014 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:51:42,307 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:51:43,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:51:43,582 INFO L93 Difference]: Finished difference Result 1472 states and 1755 transitions. [2020-09-04 20:51:43,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-04 20:51:43,583 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-04 20:51:43,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:51:43,599 INFO L225 Difference]: With dead ends: 1472 [2020-09-04 20:51:43,599 INFO L226 Difference]: Without dead ends: 1047 [2020-09-04 20:51:43,602 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-04 20:51:43,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2020-09-04 20:51:43,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 943. [2020-09-04 20:51:43,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 943 states. [2020-09-04 20:51:44,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1077 transitions. [2020-09-04 20:51:44,006 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1077 transitions. Word has length 172 [2020-09-04 20:51:44,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:51:44,007 INFO L479 AbstractCegarLoop]: Abstraction has 943 states and 1077 transitions. [2020-09-04 20:51:44,008 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 20:51:44,008 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1077 transitions. [2020-09-04 20:51:44,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-04 20:51:44,013 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:51:44,014 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:51:44,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 20:51:44,014 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:51:44,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:51:44,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1697188589, now seen corresponding path program 1 times [2020-09-04 20:51:44,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:51:44,015 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [718750125] [2020-09-04 20:51:44,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:51:44,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:51:44,114 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:51:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:51:44,217 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:51:44,433 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 20:51:44,433 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 20:51:44,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 20:51:44,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 08:51:44 BoogieIcfgContainer [2020-09-04 20:51:44,697 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 20:51:44,699 INFO L168 Benchmark]: Toolchain (without parser) took 22561.29 ms. Allocated memory was 138.4 MB in the beginning and 612.4 MB in the end (delta: 474.0 MB). Free memory was 101.0 MB in the beginning and 76.3 MB in the end (delta: 24.6 MB). Peak memory consumption was 498.6 MB. Max. memory is 7.1 GB. [2020-09-04 20:51:44,701 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 138.4 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-04 20:51:44,707 INFO L168 Benchmark]: CACSL2BoogieTranslator took 790.23 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 100.7 MB in the beginning and 170.0 MB in the end (delta: -69.3 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. [2020-09-04 20:51:44,709 INFO L168 Benchmark]: Boogie Preprocessor took 137.51 ms. Allocated memory is still 202.4 MB. Free memory was 170.0 MB in the beginning and 165.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-04 20:51:44,710 INFO L168 Benchmark]: RCFGBuilder took 1335.12 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 165.9 MB in the beginning and 171.9 MB in the end (delta: -6.0 MB). Peak memory consumption was 84.7 MB. Max. memory is 7.1 GB. [2020-09-04 20:51:44,711 INFO L168 Benchmark]: TraceAbstraction took 20292.60 ms. Allocated memory was 234.4 MB in the beginning and 612.4 MB in the end (delta: 378.0 MB). Free memory was 171.9 MB in the beginning and 76.3 MB in the end (delta: 95.5 MB). Peak memory consumption was 473.5 MB. Max. memory is 7.1 GB. [2020-09-04 20:51:44,724 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 138.4 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 790.23 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 100.7 MB in the beginning and 170.0 MB in the end (delta: -69.3 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 137.51 ms. Allocated memory is still 202.4 MB. Free memory was 170.0 MB in the beginning and 165.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1335.12 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 165.9 MB in the beginning and 171.9 MB in the end (delta: -6.0 MB). Peak memory consumption was 84.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20292.60 ms. Allocated memory was 234.4 MB in the beginning and 612.4 MB in the end (delta: 378.0 MB). Free memory was 171.9 MB in the beginning and 76.3 MB in the end (delta: 95.5 MB). Peak memory consumption was 473.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 694]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=171, \old(head)=176, \old(head)=162, \old(methaneLevelCritical)=147, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=139, cleanupTimeShifts=171, head={0:0}, methaneLevelCritical=147, pumpRunning=137, systemActive=136, waterLevel=139] [L414] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=171, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=147, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=139, cleanupTimeShifts=171, head={0:0}, methaneLevelCritical=147, pumpRunning=137, systemActive=136, waterLevel=1] [L415] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=171, \old(head)=176, \old(head)=162, \old(methaneLevelCritical)=147, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=139, cleanupTimeShifts=171, head={0:0}, methaneLevelCritical=0, pumpRunning=137, systemActive=136, waterLevel=1] [L517] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=171, \old(head)=176, \old(head)=162, \old(methaneLevelCritical)=147, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=137, systemActive=136, waterLevel=1] [L769] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=171, \old(head)=176, \old(head)=162, \old(methaneLevelCritical)=147, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=136, waterLevel=1] [L770] int systemActive = 1; VAL [\old(cleanupTimeShifts)=171, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=147, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L596] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L597] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L601] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L602] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L603] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L645] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L648] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L649] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=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] [L603] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L603] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L605] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L607] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L608] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L587] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L701] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L702] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L703] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L704] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L705] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L708] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L710] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L712] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L718] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L720] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L722] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L432] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L433] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L722] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L728] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L730] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=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] [L738] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=0, waterLevel=2] [L740] COND FALSE !(\read(tmp___2)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=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___2=0, waterLevel=2] [L744] tmp___1 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L746] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=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=1, tmp___2=0, waterLevel=2] [L748] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L987] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L994] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L748] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L755] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L776] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L783] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L791] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L657] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L658] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L659] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L663] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L453] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L456] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L457] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L663] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L663] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L665] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L669] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L485] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L488] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L489] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L669] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L669] tmp___0 = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L671] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L673] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L901] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L904] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L905] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L673] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L673] tmp___1 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L675] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L679] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L694] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 658 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 15.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1126 SDtfs, 1493 SDslu, 1394 SDs, 0 SdLazy, 3717 SolverSat, 464 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=943occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 4 MinimizatonAttempts, 258 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 819 NumberOfCodeBlocks, 819 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 638 ConstructedInterpolants, 0 QuantifiedInterpolants, 260422 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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...