/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_product08.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:32:09,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:32:09,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:32:09,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:32:09,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:32:09,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:32:09,231 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:32:09,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:32:09,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:32:09,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:32:09,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:32:09,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:32:09,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:32:09,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:32:09,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:32:09,255 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:32:09,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:32:09,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:32:09,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:32:09,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:32:09,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:32:09,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:32:09,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:32:09,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:32:09,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:32:09,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:32:09,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:32:09,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:32:09,267 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:32:09,268 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:32:09,269 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:32:09,270 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:32:09,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:32:09,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:32:09,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:32:09,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:32:09,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:32:09,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:32:09,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:32:09,275 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:32:09,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:32:09,276 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 12:32:09,285 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:32:09,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:32:09,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:32:09,287 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:32:09,287 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:32:09,287 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:32:09,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:32:09,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:32:09,288 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:32:09,288 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:32:09,288 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:32:09,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:32:09,289 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:32:09,289 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:32:09,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:32:09,289 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:32:09,289 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:32:09,290 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:32:09,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:32:09,290 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:32:09,290 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:32:09,290 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:32:09,291 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:32:09,572 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:32:09,586 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:32:09,589 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:32:09,591 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:32:09,591 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:32:09,592 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-07-07 12:32:09,666 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2225b18a/4d3d72c4395742cfadfadc8d8b546923/FLAGbcf81f34b [2020-07-07 12:32:10,170 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:32:10,171 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-07-07 12:32:10,183 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2225b18a/4d3d72c4395742cfadfadc8d8b546923/FLAGbcf81f34b [2020-07-07 12:32:10,433 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2225b18a/4d3d72c4395742cfadfadc8d8b546923 [2020-07-07 12:32:10,444 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:32:10,446 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:32:10,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:32:10,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:32:10,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:32:10,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:32:10" (1/1) ... [2020-07-07 12:32:10,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c10906d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:10, skipping insertion in model container [2020-07-07 12:32:10,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:32:10" (1/1) ... [2020-07-07 12:32:10,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:32:10,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:32:10,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:32:10,997 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:32:11,076 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:32:11,110 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:32:11,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:11 WrapperNode [2020-07-07 12:32:11,111 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:32:11,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:32:11,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:32:11,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:32:11,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:11" (1/1) ... [2020-07-07 12:32:11,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:11" (1/1) ... [2020-07-07 12:32:11,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:11" (1/1) ... [2020-07-07 12:32:11,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:11" (1/1) ... [2020-07-07 12:32:11,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:11" (1/1) ... [2020-07-07 12:32:11,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:11" (1/1) ... [2020-07-07 12:32:11,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:11" (1/1) ... [2020-07-07 12:32:11,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:32:11,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:32:11,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:32:11,224 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:32:11,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:32:11,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:32:11,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:32:11,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:32:11,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:32:11,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:32:11,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:32:11,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:32:11,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:32:11,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:32:11,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:32:11,296 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:32:11,296 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:32:11,296 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:32:11,296 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:32:11,297 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:32:11,297 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:32:11,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:32:11,297 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:32:11,297 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:32:11,297 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 12:32:11,298 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:32:11,298 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:32:11,298 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:32:11,298 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:32:11,298 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:32:11,298 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:32:11,299 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-07 12:32:11,299 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-07 12:32:11,299 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:32:11,299 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:32:11,299 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:32:11,299 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:32:11,300 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:32:11,300 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:32:11,300 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:32:11,300 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:32:11,300 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:32:11,301 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:32:11,301 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:32:11,301 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:32:11,301 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:32:11,301 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:32:11,301 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:32:11,301 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:32:11,302 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:32:11,302 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:32:11,302 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:32:11,302 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:32:11,302 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:32:11,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:32:11,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:32:11,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:32:11,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:32:11,303 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:32:11,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:32:11,303 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:32:11,303 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:32:11,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:32:11,304 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:32:11,304 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:32:11,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:32:11,304 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:32:11,304 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:32:11,304 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:32:11,305 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:32:11,305 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:32:11,305 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-07 12:32:11,305 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-07 12:32:11,305 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:32:11,305 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:32:11,305 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:32:11,306 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:32:11,306 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:32:11,306 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:32:11,306 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:32:11,306 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 12:32:11,306 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:32:11,307 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:32:11,307 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:32:11,307 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:32:11,307 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:32:11,307 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:32:11,307 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:32:11,308 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:32:11,308 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:32:11,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:32:11,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:32:11,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:32:12,405 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:32:12,405 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:32:12,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:32:12 BoogieIcfgContainer [2020-07-07 12:32:12,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:32:12,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:32:12,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:32:12,416 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:32:12,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:32:10" (1/3) ... [2020-07-07 12:32:12,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@586a84f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:32:12, skipping insertion in model container [2020-07-07 12:32:12,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:11" (2/3) ... [2020-07-07 12:32:12,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@586a84f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:32:12, skipping insertion in model container [2020-07-07 12:32:12,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:32:12" (3/3) ... [2020-07-07 12:32:12,420 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product08.cil.c [2020-07-07 12:32:12,431 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:32:12,440 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:32:12,455 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:32:12,477 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:32:12,477 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:32:12,477 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:32:12,478 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:32:12,478 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:32:12,478 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:32:12,478 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:32:12,479 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:32:12,499 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states. [2020-07-07 12:32:12,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-07 12:32:12,520 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:32:12,522 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 12:32:12,522 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:32:12,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:32:12,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1628156155, now seen corresponding path program 1 times [2020-07-07 12:32:12,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:32:12,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1699290019] [2020-07-07 12:32:12,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:32:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:13,267 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:32:13,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:13,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:13,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:13,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:13,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:13,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:13,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:13,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:13,418 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 12:32:13,419 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:32:13,421 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1699290019] [2020-07-07 12:32:13,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:32:13,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 12:32:13,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531605250] [2020-07-07 12:32:13,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 12:32:13,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:32:13,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 12:32:13,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:32:13,448 INFO L87 Difference]: Start difference. First operand 285 states. Second operand 3 states. [2020-07-07 12:32:14,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:32:14,792 INFO L93 Difference]: Finished difference Result 436 states and 524 transitions. [2020-07-07 12:32:14,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 12:32:14,794 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-07 12:32:14,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:32:14,811 INFO L225 Difference]: With dead ends: 436 [2020-07-07 12:32:14,812 INFO L226 Difference]: Without dead ends: 276 [2020-07-07 12:32:14,817 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 12:32:14,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-07-07 12:32:14,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 234. [2020-07-07 12:32:14,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-07-07 12:32:14,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 254 transitions. [2020-07-07 12:32:14,944 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 254 transitions. Word has length 153 [2020-07-07 12:32:14,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:32:14,945 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 254 transitions. [2020-07-07 12:32:14,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 12:32:14,945 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 254 transitions. [2020-07-07 12:32:14,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-07 12:32:14,950 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:32:14,950 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 12:32:14,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:32:14,950 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:32:14,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:32:14,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1901557840, now seen corresponding path program 1 times [2020-07-07 12:32:14,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:32:14,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [506114011] [2020-07-07 12:32:14,952 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:32:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:15,301 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:32:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:15,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:15,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:15,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:15,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:15,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:15,411 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 12:32:15,411 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:32:15,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [506114011] [2020-07-07 12:32:15,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:32:15,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:32:15,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412478763] [2020-07-07 12:32:15,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:32:15,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:32:15,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:32:15,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:32:15,416 INFO L87 Difference]: Start difference. First operand 234 states and 254 transitions. Second operand 4 states. [2020-07-07 12:32:16,124 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:32:16,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:32:16,943 INFO L93 Difference]: Finished difference Result 343 states and 387 transitions. [2020-07-07 12:32:16,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 12:32:16,944 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-07-07 12:32:16,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:32:16,949 INFO L225 Difference]: With dead ends: 343 [2020-07-07 12:32:16,949 INFO L226 Difference]: Without dead ends: 259 [2020-07-07 12:32:16,952 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 12:32:16,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-07-07 12:32:17,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 224. [2020-07-07 12:32:17,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-07-07 12:32:17,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 241 transitions. [2020-07-07 12:32:17,018 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 241 transitions. Word has length 154 [2020-07-07 12:32:17,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:32:17,019 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 241 transitions. [2020-07-07 12:32:17,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:32:17,019 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 241 transitions. [2020-07-07 12:32:17,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-07-07 12:32:17,022 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:32:17,022 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] [2020-07-07 12:32:17,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:32:17,023 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:32:17,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:32:17,023 INFO L82 PathProgramCache]: Analyzing trace with hash 189375213, now seen corresponding path program 1 times [2020-07-07 12:32:17,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:32:17,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [109494102] [2020-07-07 12:32:17,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:32:17,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:17,331 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:32:17,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:17,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:17,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:17,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:17,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:17,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:17,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:17,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:17,508 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 12:32:17,508 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:32:17,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [109494102] [2020-07-07 12:32:17,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:32:17,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 12:32:17,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10351357] [2020-07-07 12:32:17,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 12:32:17,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:32:17,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 12:32:17,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-07 12:32:17,512 INFO L87 Difference]: Start difference. First operand 224 states and 241 transitions. Second operand 10 states. [2020-07-07 12:32:18,176 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:32:18,525 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:32:18,780 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-07 12:32:19,064 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:32:19,317 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:32:19,547 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:32:20,526 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:32:22,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:32:22,497 INFO L93 Difference]: Finished difference Result 614 states and 719 transitions. [2020-07-07 12:32:22,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-07 12:32:22,498 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-07-07 12:32:22,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:32:22,504 INFO L225 Difference]: With dead ends: 614 [2020-07-07 12:32:22,505 INFO L226 Difference]: Without dead ends: 500 [2020-07-07 12:32:22,507 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-07-07 12:32:22,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2020-07-07 12:32:22,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 409. [2020-07-07 12:32:22,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2020-07-07 12:32:22,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 458 transitions. [2020-07-07 12:32:22,651 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 458 transitions. Word has length 167 [2020-07-07 12:32:22,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:32:22,652 INFO L479 AbstractCegarLoop]: Abstraction has 409 states and 458 transitions. [2020-07-07 12:32:22,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 12:32:22,652 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 458 transitions. [2020-07-07 12:32:22,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-07-07 12:32:22,655 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:32:22,656 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:32:22,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:32:22,656 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:32:22,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:32:22,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1096724522, now seen corresponding path program 1 times [2020-07-07 12:32:22,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:32:22,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [69517803] [2020-07-07 12:32:22,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:32:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:23,002 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:32:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:23,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:23,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:23,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:23,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:23,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:23,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:23,202 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 12:32:23,202 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:32:23,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [69517803] [2020-07-07 12:32:23,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:32:23,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:32:23,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795022371] [2020-07-07 12:32:23,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:32:23,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:32:23,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:32:23,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:32:23,205 INFO L87 Difference]: Start difference. First operand 409 states and 458 transitions. Second operand 9 states. [2020-07-07 12:32:23,671 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:32:25,325 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:32:25,598 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:32:25,867 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:32:26,132 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:32:26,390 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:32:26,648 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:32:26,882 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:32:27,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:32:27,605 INFO L93 Difference]: Finished difference Result 1085 states and 1315 transitions. [2020-07-07 12:32:27,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 12:32:27,605 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-07-07 12:32:27,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:32:27,618 INFO L225 Difference]: With dead ends: 1085 [2020-07-07 12:32:27,618 INFO L226 Difference]: Without dead ends: 786 [2020-07-07 12:32:27,623 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 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 12:32:27,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2020-07-07 12:32:27,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 687. [2020-07-07 12:32:27,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 687 states. [2020-07-07 12:32:27,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 793 transitions. [2020-07-07 12:32:27,910 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 793 transitions. Word has length 172 [2020-07-07 12:32:27,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:32:27,910 INFO L479 AbstractCegarLoop]: Abstraction has 687 states and 793 transitions. [2020-07-07 12:32:27,911 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:32:27,911 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 793 transitions. [2020-07-07 12:32:27,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-07 12:32:27,915 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:32:27,915 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:32:27,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:32:27,916 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:32:27,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:32:27,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1990325339, now seen corresponding path program 1 times [2020-07-07 12:32:27,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:32:27,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [888872110] [2020-07-07 12:32:27,917 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:32:27,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:32:28,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:32:28,223 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:32:28,224 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:32:28,224 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:32:28,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:32:28,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:32:28 BoogieIcfgContainer [2020-07-07 12:32:28,249 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:32:28,251 INFO L168 Benchmark]: Toolchain (without parser) took 17805.02 ms. Allocated memory was 143.1 MB in the beginning and 589.3 MB in the end (delta: 446.2 MB). Free memory was 99.5 MB in the beginning and 428.2 MB in the end (delta: -328.7 MB). Peak memory consumption was 117.5 MB. Max. memory is 7.1 GB. [2020-07-07 12:32:28,252 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 143.1 MB. Free memory was 118.5 MB in the beginning and 118.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 12:32:28,253 INFO L168 Benchmark]: CACSL2BoogieTranslator took 664.07 ms. Allocated memory was 143.1 MB in the beginning and 201.3 MB in the end (delta: 58.2 MB). Free memory was 99.1 MB in the beginning and 171.5 MB in the end (delta: -72.3 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2020-07-07 12:32:28,254 INFO L168 Benchmark]: Boogie Preprocessor took 112.12 ms. Allocated memory is still 201.3 MB. Free memory was 171.5 MB in the beginning and 167.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-07-07 12:32:28,254 INFO L168 Benchmark]: RCFGBuilder took 1187.77 ms. Allocated memory was 201.3 MB in the beginning and 229.6 MB in the end (delta: 28.3 MB). Free memory was 167.1 MB in the beginning and 180.3 MB in the end (delta: -13.1 MB). Peak memory consumption was 90.3 MB. Max. memory is 7.1 GB. [2020-07-07 12:32:28,255 INFO L168 Benchmark]: TraceAbstraction took 15835.90 ms. Allocated memory was 229.6 MB in the beginning and 589.3 MB in the end (delta: 359.7 MB). Free memory was 180.3 MB in the beginning and 428.2 MB in the end (delta: -247.9 MB). Peak memory consumption was 111.7 MB. Max. memory is 7.1 GB. [2020-07-07 12:32:28,259 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 143.1 MB. Free memory was 118.5 MB in the beginning and 118.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 664.07 ms. Allocated memory was 143.1 MB in the beginning and 201.3 MB in the end (delta: 58.2 MB). Free memory was 99.1 MB in the beginning and 171.5 MB in the end (delta: -72.3 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.12 ms. Allocated memory is still 201.3 MB. Free memory was 171.5 MB in the beginning and 167.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1187.77 ms. Allocated memory was 201.3 MB in the beginning and 229.6 MB in the end (delta: 28.3 MB). Free memory was 167.1 MB in the beginning and 180.3 MB in the end (delta: -13.1 MB). Peak memory consumption was 90.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15835.90 ms. Allocated memory was 229.6 MB in the beginning and 589.3 MB in the end (delta: 359.7 MB). Free memory was 180.3 MB in the beginning and 428.2 MB in the end (delta: -247.9 MB). Peak memory consumption was 111.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 532]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L448] int waterLevel = 1; [L449] int methaneLevelCritical = 0; [L613] int pumpRunning = 0; [L614] int systemActive = 1; [L807] int cleanupTimeShifts = 4; [L880] int retValue_acc ; [L881] int tmp ; [L885] FCALL select_helpers() [L886] FCALL select_features() [L887] CALL, EXPR valid_product() [L798] int retValue_acc ; [L801] retValue_acc = 1 [L802] return (retValue_acc); [L887] RET, EXPR valid_product() [L887] tmp = valid_product() [L889] COND TRUE \read(tmp) [L891] FCALL setup() [L892] CALL runTest() [L874] CALL test() [L542] int splverifierCounter ; [L543] int tmp ; [L544] int tmp___0 ; [L545] int tmp___1 ; [L546] int tmp___2 ; [L549] splverifierCounter = 0 [L551] COND TRUE 1 [L553] COND TRUE splverifierCounter < 4 [L559] tmp = __VERIFIER_nondet_int() [L561] COND TRUE \read(tmp) [L563] CALL waterRise() [L466] COND TRUE waterLevel < 2 [L467] waterLevel = waterLevel + 1 [L563] RET waterRise() [L569] tmp___0 = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp___0)) [L579] tmp___2 = __VERIFIER_nondet_int() [L581] COND FALSE !(\read(tmp___2)) [L587] tmp___1 = __VERIFIER_nondet_int() [L589] COND TRUE \read(tmp___1) [L591] CALL stopSystem() [L749] COND FALSE !(\read(pumpRunning)) [L756] systemActive = 0 [L591] RET stopSystem() [L598] CALL timeShift() [L620] COND FALSE !(\read(pumpRunning)) [L627] COND FALSE !(\read(systemActive)) [L635] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L487] int retValue_acc ; [L490] retValue_acc = methaneLevelCritical [L491] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L519] int retValue_acc ; [L522] retValue_acc = waterLevel [L523] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L701] int retValue_acc ; [L704] retValue_acc = pumpRunning [L705] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L532] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 600 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 909 SDtfs, 1289 SDslu, 1396 SDs, 0 SdLazy, 2755 SolverSat, 480 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=687occurred 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: 0.6s AutomataMinimizationTime, 4 MinimizatonAttempts, 267 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...