/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_product12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:32:36,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:32:36,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:32:36,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:32:36,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:32:36,288 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:32:36,290 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:32:36,302 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:32:36,303 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:32:36,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:32:36,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:32:36,307 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:32:36,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:32:36,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:32:36,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:32:36,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:32:36,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:32:36,318 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:32:36,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:32:36,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:32:36,322 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:32:36,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:32:36,324 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:32:36,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:32:36,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:32:36,327 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:32:36,328 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:32:36,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:32:36,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:32:36,330 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:32:36,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:32:36,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:32:36,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:32:36,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:32:36,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:32:36,333 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:32:36,334 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:32:36,334 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:32:36,334 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:32:36,335 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:32:36,336 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:32:36,337 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 12:32:36,346 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:32:36,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:32:36,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:32:36,348 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:32:36,348 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:32:36,348 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:32:36,348 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:32:36,348 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:32:36,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:32:36,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:32:36,349 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:32:36,349 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:32:36,349 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:32:36,350 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:32:36,350 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:32:36,350 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:32:36,350 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:32:36,350 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:32:36,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:32:36,351 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:32:36,351 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:32:36,351 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:32:36,351 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:32:36,620 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:32:36,634 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:32:36,637 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:32:36,639 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:32:36,639 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:32:36,640 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c [2020-07-07 12:32:36,705 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82f757dd4/40cdc187ef9e44f4b7233b849b27bf10/FLAG771c15b87 [2020-07-07 12:32:37,212 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:32:37,213 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c [2020-07-07 12:32:37,225 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82f757dd4/40cdc187ef9e44f4b7233b849b27bf10/FLAG771c15b87 [2020-07-07 12:32:37,579 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82f757dd4/40cdc187ef9e44f4b7233b849b27bf10 [2020-07-07 12:32:37,587 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:32:37,589 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:32:37,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:32:37,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:32:37,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:32:37,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:32:37" (1/1) ... [2020-07-07 12:32:37,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f22a51f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:37, skipping insertion in model container [2020-07-07 12:32:37,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:32:37" (1/1) ... [2020-07-07 12:32:37,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:32:37,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:32:37,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:32:38,094 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:32:38,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:32:38,207 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:32:38,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:38 WrapperNode [2020-07-07 12:32:38,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:32:38,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:32:38,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:32:38,209 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:32:38,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:38" (1/1) ... [2020-07-07 12:32:38,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:38" (1/1) ... [2020-07-07 12:32:38,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:38" (1/1) ... [2020-07-07 12:32:38,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:38" (1/1) ... [2020-07-07 12:32:38,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:38" (1/1) ... [2020-07-07 12:32:38,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:38" (1/1) ... [2020-07-07 12:32:38,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:38" (1/1) ... [2020-07-07 12:32:38,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:32:38,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:32:38,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:32:38,339 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:32:38,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:38" (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 12:32:38,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:32:38,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:32:38,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:32:38,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:32:38,426 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:32:38,426 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:32:38,426 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:32:38,426 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-07-07 12:32:38,427 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:32:38,427 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:32:38,427 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:32:38,428 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:32:38,428 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:32:38,428 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-07 12:32:38,428 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-07 12:32:38,429 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:32:38,429 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:32:38,429 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:32:38,430 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:32:38,430 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:32:38,431 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:32:38,431 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:32:38,433 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:32:38,433 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:32:38,433 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:32:38,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:32:38,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:32:38,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:32:38,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:32:38,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:32:38,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:32:38,434 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:32:38,435 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:32:38,435 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:32:38,435 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:32:38,435 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:32:38,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:32:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:32:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:32:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:32:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:32:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:32:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:32:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:32:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:32:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:32:38,437 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:32:38,437 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-07 12:32:38,437 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-07 12:32:38,437 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:32:38,437 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:32:38,438 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:32:38,438 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:32:38,438 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:32:38,438 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:32:38,438 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:32:38,439 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:32:38,439 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:32:38,439 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-07-07 12:32:38,439 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:32:38,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:32:38,439 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:32:38,439 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:32:38,440 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:32:38,440 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:32:38,440 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:32:38,440 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:32:38,441 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:32:38,441 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:32:38,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:32:38,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:32:38,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:32:38,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:32:38,442 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:32:38,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:32:38,442 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:32:38,442 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:32:38,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:32:38,443 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:32:38,443 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:32:38,444 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:32:38,445 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:32:38,445 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:32:38,445 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:32:38,445 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:32:38,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:32:38,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:32:38,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:32:39,540 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:32:39,540 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:32:39,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:32:39 BoogieIcfgContainer [2020-07-07 12:32:39,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:32:39,549 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:32:39,549 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:32:39,553 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:32:39,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:32:37" (1/3) ... [2020-07-07 12:32:39,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65584e72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:32:39, skipping insertion in model container [2020-07-07 12:32:39,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:32:38" (2/3) ... [2020-07-07 12:32:39,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65584e72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:32:39, skipping insertion in model container [2020-07-07 12:32:39,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:32:39" (3/3) ... [2020-07-07 12:32:39,556 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product12.cil.c [2020-07-07 12:32:39,568 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:32:39,577 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:32:39,592 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:32:39,616 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:32:39,616 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:32:39,616 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:32:39,616 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:32:39,617 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:32:39,617 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:32:39,617 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:32:39,617 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:32:39,639 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2020-07-07 12:32:39,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-07 12:32:39,659 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:32:39,660 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 12:32:39,661 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:32:39,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:32:39,666 INFO L82 PathProgramCache]: Analyzing trace with hash 459580304, now seen corresponding path program 1 times [2020-07-07 12:32:39,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:32:39,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [911353262] [2020-07-07 12:32:39,674 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:32:39,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:40,395 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:32:40,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:40,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:40,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:40,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:40,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:40,645 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 12:32:40,646 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:32:40,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [911353262] [2020-07-07 12:32:40,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:32:40,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 12:32:40,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707724477] [2020-07-07 12:32:40,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 12:32:40,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:32:40,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 12:32:40,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:32:40,676 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 3 states. [2020-07-07 12:32:41,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:32:41,834 INFO L93 Difference]: Finished difference Result 394 states and 471 transitions. [2020-07-07 12:32:41,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 12:32:41,837 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-07 12:32:41,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:32:41,853 INFO L225 Difference]: With dead ends: 394 [2020-07-07 12:32:41,853 INFO L226 Difference]: Without dead ends: 254 [2020-07-07 12:32:41,858 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 12:32:41,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-07-07 12:32:41,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 214. [2020-07-07 12:32:41,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-07-07 12:32:41,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 229 transitions. [2020-07-07 12:32:41,963 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 229 transitions. Word has length 153 [2020-07-07 12:32:41,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:32:41,964 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 229 transitions. [2020-07-07 12:32:41,964 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 12:32:41,964 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 229 transitions. [2020-07-07 12:32:41,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-07 12:32:41,969 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:32:41,969 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 12:32:41,969 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:32:41,970 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:32:41,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:32:41,970 INFO L82 PathProgramCache]: Analyzing trace with hash 418244228, now seen corresponding path program 1 times [2020-07-07 12:32:41,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:32:41,971 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1495029108] [2020-07-07 12:32:41,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:32:42,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:42,273 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:32:42,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:42,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:42,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:42,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:42,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:42,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:42,351 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 12:32:42,352 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:32:42,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1495029108] [2020-07-07 12:32:42,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:32:42,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:32:42,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601366810] [2020-07-07 12:32:42,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:32:42,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:32:42,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:32:42,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:32:42,355 INFO L87 Difference]: Start difference. First operand 214 states and 229 transitions. Second operand 4 states. [2020-07-07 12:32:42,986 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:32:43,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:32:43,634 INFO L93 Difference]: Finished difference Result 298 states and 332 transitions. [2020-07-07 12:32:43,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 12:32:43,635 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-07-07 12:32:43,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:32:43,639 INFO L225 Difference]: With dead ends: 298 [2020-07-07 12:32:43,639 INFO L226 Difference]: Without dead ends: 237 [2020-07-07 12:32:43,641 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 12:32:43,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-07-07 12:32:43,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 204. [2020-07-07 12:32:43,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-07-07 12:32:43,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 216 transitions. [2020-07-07 12:32:43,700 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 216 transitions. Word has length 154 [2020-07-07 12:32:43,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:32:43,701 INFO L479 AbstractCegarLoop]: Abstraction has 204 states and 216 transitions. [2020-07-07 12:32:43,701 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:32:43,702 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 216 transitions. [2020-07-07 12:32:43,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-07-07 12:32:43,704 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:32:43,705 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 12:32:43,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:32:43,705 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:32:43,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:32:43,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1459194471, now seen corresponding path program 1 times [2020-07-07 12:32:43,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:32:43,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2002242969] [2020-07-07 12:32:43,707 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:32:43,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:44,072 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:32:44,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:44,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:44,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:44,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:44,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:44,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:44,296 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 12:32:44,296 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:32:44,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2002242969] [2020-07-07 12:32:44,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:32:44,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 12:32:44,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050082502] [2020-07-07 12:32:44,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 12:32:44,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:32:44,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 12:32:44,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-07 12:32:44,299 INFO L87 Difference]: Start difference. First operand 204 states and 216 transitions. Second operand 10 states. [2020-07-07 12:32:44,773 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:32:45,092 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:32:45,354 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-07 12:32:45,594 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:32:45,835 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:32:46,055 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:32:46,994 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:32:48,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:32:48,490 INFO L93 Difference]: Finished difference Result 550 states and 638 transitions. [2020-07-07 12:32:48,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-07 12:32:48,491 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-07-07 12:32:48,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:32:48,497 INFO L225 Difference]: With dead ends: 550 [2020-07-07 12:32:48,498 INFO L226 Difference]: Without dead ends: 456 [2020-07-07 12:32:48,499 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-07-07 12:32:48,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-07-07 12:32:48,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 357. [2020-07-07 12:32:48,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2020-07-07 12:32:48,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 392 transitions. [2020-07-07 12:32:48,632 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 392 transitions. Word has length 167 [2020-07-07 12:32:48,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:32:48,633 INFO L479 AbstractCegarLoop]: Abstraction has 357 states and 392 transitions. [2020-07-07 12:32:48,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 12:32:48,633 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 392 transitions. [2020-07-07 12:32:48,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-07-07 12:32:48,636 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:32:48,637 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] [2020-07-07 12:32:48,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:32:48,637 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:32:48,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:32:48,638 INFO L82 PathProgramCache]: Analyzing trace with hash -651029142, now seen corresponding path program 1 times [2020-07-07 12:32:48,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:32:48,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1677597963] [2020-07-07 12:32:48,639 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:32:48,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:48,972 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:32:48,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:49,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:49,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:49,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:49,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:49,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:49,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:49,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:49,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:32:49,108 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 12:32:49,109 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:32:49,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1677597963] [2020-07-07 12:32:49,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:32:49,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:32:49,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261819056] [2020-07-07 12:32:49,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:32:49,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:32:49,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:32:49,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:32:49,111 INFO L87 Difference]: Start difference. First operand 357 states and 392 transitions. Second operand 9 states. [2020-07-07 12:32:49,597 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:32:50,985 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:32:51,259 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:32:51,531 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:32:51,839 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:32:52,118 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:32:52,389 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:32:52,624 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:32:53,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:32:53,135 INFO L93 Difference]: Finished difference Result 909 states and 1077 transitions. [2020-07-07 12:32:53,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 12:32:53,136 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 170 [2020-07-07 12:32:53,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:32:53,142 INFO L225 Difference]: With dead ends: 909 [2020-07-07 12:32:53,142 INFO L226 Difference]: Without dead ends: 662 [2020-07-07 12:32:53,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-07-07 12:32:53,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2020-07-07 12:32:53,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 579. [2020-07-07 12:32:53,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2020-07-07 12:32:53,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 655 transitions. [2020-07-07 12:32:53,394 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 655 transitions. Word has length 170 [2020-07-07 12:32:53,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:32:53,395 INFO L479 AbstractCegarLoop]: Abstraction has 579 states and 655 transitions. [2020-07-07 12:32:53,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:32:53,395 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 655 transitions. [2020-07-07 12:32:53,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-07-07 12:32:53,399 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:32:53,400 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] [2020-07-07 12:32:53,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:32:53,400 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:32:53,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:32:53,401 INFO L82 PathProgramCache]: Analyzing trace with hash 232069563, now seen corresponding path program 1 times [2020-07-07 12:32:53,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:32:53,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1482055712] [2020-07-07 12:32:53,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:32:53,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:32:53,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:32:53,755 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:32:53,755 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:32:53,755 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:32:53,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:32:53,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:32:53 BoogieIcfgContainer [2020-07-07 12:32:53,777 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:32:53,779 INFO L168 Benchmark]: Toolchain (without parser) took 16190.74 ms. Allocated memory was 144.2 MB in the beginning and 570.9 MB in the end (delta: 426.8 MB). Free memory was 101.1 MB in the beginning and 409.1 MB in the end (delta: -308.0 MB). Peak memory consumption was 118.8 MB. Max. memory is 7.1 GB. [2020-07-07 12:32:53,780 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 144.2 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 12:32:53,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 618.55 ms. Allocated memory was 144.2 MB in the beginning and 203.4 MB in the end (delta: 59.2 MB). Free memory was 100.9 MB in the beginning and 173.7 MB in the end (delta: -72.7 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2020-07-07 12:32:53,782 INFO L168 Benchmark]: Boogie Preprocessor took 129.76 ms. Allocated memory is still 203.4 MB. Free memory was 173.7 MB in the beginning and 169.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-07 12:32:53,783 INFO L168 Benchmark]: RCFGBuilder took 1209.45 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 169.5 MB in the beginning and 183.4 MB in the end (delta: -13.9 MB). Peak memory consumption was 86.4 MB. Max. memory is 7.1 GB. [2020-07-07 12:32:53,784 INFO L168 Benchmark]: TraceAbstraction took 14228.17 ms. Allocated memory was 235.9 MB in the beginning and 570.9 MB in the end (delta: 335.0 MB). Free memory was 183.4 MB in the beginning and 409.1 MB in the end (delta: -225.7 MB). Peak memory consumption was 109.3 MB. Max. memory is 7.1 GB. [2020-07-07 12:32:53,788 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 144.2 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 618.55 ms. Allocated memory was 144.2 MB in the beginning and 203.4 MB in the end (delta: 59.2 MB). Free memory was 100.9 MB in the beginning and 173.7 MB in the end (delta: -72.7 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.76 ms. Allocated memory is still 203.4 MB. Free memory was 173.7 MB in the beginning and 169.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1209.45 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 169.5 MB in the beginning and 183.4 MB in the end (delta: -13.9 MB). Peak memory consumption was 86.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14228.17 ms. Allocated memory was 235.9 MB in the beginning and 570.9 MB in the end (delta: 335.0 MB). Free memory was 183.4 MB in the beginning and 409.1 MB in the end (delta: -225.7 MB). Peak memory consumption was 109.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 890]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L158] int pumpRunning = 0; [L159] int systemActive = 1; [L306] int waterLevel = 1; [L307] int methaneLevelCritical = 0; [L593] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L790] int cleanupTimeShifts = 4; [L863] int retValue_acc ; [L864] int tmp ; [L868] FCALL select_helpers() [L869] FCALL select_features() [L870] CALL, EXPR valid_product() [L415] int retValue_acc ; [L418] retValue_acc = 1 [L419] return (retValue_acc); [L870] RET, EXPR valid_product() [L870] tmp = valid_product() [L872] COND TRUE \read(tmp) [L874] FCALL setup() [L875] CALL runTest() [L857] CALL test() [L85] int splverifierCounter ; [L86] int tmp ; [L87] int tmp___0 ; [L88] int tmp___1 ; [L89] int tmp___2 ; [L92] splverifierCounter = 0 [L94] COND TRUE 1 [L96] COND TRUE splverifierCounter < 4 [L102] tmp = __VERIFIER_nondet_int() [L104] COND TRUE \read(tmp) [L106] CALL waterRise() [L324] COND TRUE waterLevel < 2 [L325] waterLevel = waterLevel + 1 [L106] RET waterRise() [L112] tmp___0 = __VERIFIER_nondet_int() [L114] COND FALSE !(\read(tmp___0)) [L122] tmp___2 = __VERIFIER_nondet_int() [L124] COND TRUE \read(tmp___2) [L126] CALL startSystem() [L301] systemActive = 1 [L126] RET startSystem() [L141] CALL timeShift() [L165] COND FALSE !(\read(pumpRunning)) [L172] COND TRUE \read(systemActive) [L174] FCALL processEnvironment() [L180] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L345] int retValue_acc ; [L348] retValue_acc = methaneLevelCritical [L349] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L377] int retValue_acc ; [L380] retValue_acc = waterLevel [L381] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L238] int retValue_acc ; [L241] retValue_acc = pumpRunning [L242] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L890] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 597 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 10.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 796 SDtfs, 1165 SDslu, 1296 SDs, 0 SdLazy, 2276 SolverSat, 398 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=579occurred 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: 0.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 255 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...