/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 20:48:47,763 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 20:48:47,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 20:48:47,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 20:48:47,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 20:48:47,794 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 20:48:47,795 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 20:48:47,797 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 20:48:47,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 20:48:47,799 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 20:48:47,800 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 20:48:47,802 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 20:48:47,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 20:48:47,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 20:48:47,804 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 20:48:47,805 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 20:48:47,806 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 20:48:47,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 20:48:47,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 20:48:47,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 20:48:47,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 20:48:47,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 20:48:47,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 20:48:47,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 20:48:47,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 20:48:47,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 20:48:47,818 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 20:48:47,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 20:48:47,819 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 20:48:47,820 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 20:48:47,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 20:48:47,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 20:48:47,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 20:48:47,823 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 20:48:47,824 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 20:48:47,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 20:48:47,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 20:48:47,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 20:48:47,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 20:48:47,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 20:48:47,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 20:48:47,828 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 20:48:47,838 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 20:48:47,839 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 20:48:47,840 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 20:48:47,840 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 20:48:47,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 20:48:47,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 20:48:47,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 20:48:47,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 20:48:47,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 20:48:47,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 20:48:47,842 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 20:48:47,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 20:48:47,842 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 20:48:47,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 20:48:47,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 20:48:47,843 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 20:48:47,843 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 20:48:47,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 20:48:47,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 20:48:47,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 20:48:47,844 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 20:48:47,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 20:48:47,844 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-09-04 20:48:48,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 20:48:48,355 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 20:48:48,359 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 20:48:48,364 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 20:48:48,365 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 20:48:48,366 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c [2020-09-04 20:48:48,457 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8369ea947/eb343a878b064ed69769355ed692f29c/FLAGaa3a424d2 [2020-09-04 20:48:49,052 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 20:48:49,053 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c [2020-09-04 20:48:49,067 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8369ea947/eb343a878b064ed69769355ed692f29c/FLAGaa3a424d2 [2020-09-04 20:48:49,327 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8369ea947/eb343a878b064ed69769355ed692f29c [2020-09-04 20:48:49,341 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 20:48:49,344 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 20:48:49,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 20:48:49,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 20:48:49,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 20:48:49,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:48:49" (1/1) ... [2020-09-04 20:48:49,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:49, skipping insertion in model container [2020-09-04 20:48:49,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:48:49" (1/1) ... [2020-09-04 20:48:49,364 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 20:48:49,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 20:48:49,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:48:49,846 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 20:48:50,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:48:50,090 INFO L208 MainTranslator]: Completed translation [2020-09-04 20:48:50,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:50 WrapperNode [2020-09-04 20:48:50,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 20:48:50,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 20:48:50,092 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 20:48:50,092 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 20:48:50,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:50" (1/1) ... [2020-09-04 20:48:50,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:50" (1/1) ... [2020-09-04 20:48:50,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:50" (1/1) ... [2020-09-04 20:48:50,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:50" (1/1) ... [2020-09-04 20:48:50,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:50" (1/1) ... [2020-09-04 20:48:50,172 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:50" (1/1) ... [2020-09-04 20:48:50,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:50" (1/1) ... [2020-09-04 20:48:50,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 20:48:50,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 20:48:50,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 20:48:50,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 20:48:50,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:50" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 20:48:50,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 20:48:50,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 20:48:50,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 20:48:50,277 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 20:48:50,277 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 20:48:50,277 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 20:48:50,277 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 20:48:50,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 20:48:50,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 20:48:50,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 20:48:50,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 20:48:50,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 20:48:50,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 20:48:50,279 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 20:48:50,279 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 20:48:50,279 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 20:48:50,279 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 20:48:50,279 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 20:48:50,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-04 20:48:50,280 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 20:48:50,280 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-04 20:48:50,280 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 20:48:50,281 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 20:48:50,281 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 20:48:50,281 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 20:48:50,281 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 20:48:50,281 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 20:48:50,281 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-04 20:48:50,282 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-04 20:48:50,282 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-04 20:48:50,282 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 20:48:50,282 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 20:48:50,282 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 20:48:50,282 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 20:48:50,283 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 20:48:50,283 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 20:48:50,283 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 20:48:50,283 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-04 20:48:50,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 20:48:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 20:48:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 20:48:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 20:48:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 20:48:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 20:48:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 20:48:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 20:48:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 20:48:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 20:48:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 20:48:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 20:48:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 20:48:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 20:48:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 20:48:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 20:48:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 20:48:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 20:48:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 20:48:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 20:48:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 20:48:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 20:48:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 20:48:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 20:48:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 20:48:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 20:48:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 20:48:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 20:48:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 20:48:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 20:48:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 20:48:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 20:48:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 20:48:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 20:48:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 20:48:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 20:48:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 20:48:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 20:48:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 20:48:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-04 20:48:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 20:48:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 20:48:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-04 20:48:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 20:48:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 20:48:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-04 20:48:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-04 20:48:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 20:48:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-04 20:48:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-04 20:48:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 20:48:50,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 20:48:50,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 20:48:50,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 20:48:51,368 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 20:48:51,369 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 20:48:51,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:48:51 BoogieIcfgContainer [2020-09-04 20:48:51,376 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 20:48:51,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 20:48:51,378 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 20:48:51,381 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 20:48:51,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 08:48:49" (1/3) ... [2020-09-04 20:48:51,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ca07f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:48:51, skipping insertion in model container [2020-09-04 20:48:51,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:48:50" (2/3) ... [2020-09-04 20:48:51,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ca07f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:48:51, skipping insertion in model container [2020-09-04 20:48:51,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:48:51" (3/3) ... [2020-09-04 20:48:51,385 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product20.cil.c [2020-09-04 20:48:51,396 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 20:48:51,406 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 20:48:51,428 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 20:48:51,454 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 20:48:51,454 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 20:48:51,454 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 20:48:51,454 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 20:48:51,455 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 20:48:51,455 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 20:48:51,455 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 20:48:51,455 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 20:48:51,478 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states. [2020-09-04 20:48:51,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-04 20:48:51,501 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:48:51,503 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:48:51,503 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:48:51,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:48:51,509 INFO L82 PathProgramCache]: Analyzing trace with hash 554179223, now seen corresponding path program 1 times [2020-09-04 20:48:51,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:48:51,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1771946964] [2020-09-04 20:48:51,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:48:51,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:52,290 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:48:52,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:48:52,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:52,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:48:52,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:52,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:48:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:52,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:48:52,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:52,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:48:52,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:52,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 20:48:52,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:52,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 20:48:52,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:52,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 20:48:52,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:52,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:48:52,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1771946964] [2020-09-04 20:48:52,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:48:52,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 20:48:52,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782944853] [2020-09-04 20:48:52,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 20:48:52,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:48:52,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 20:48:52,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 20:48:52,554 INFO L87 Difference]: Start difference. First operand 302 states. Second operand 3 states. [2020-09-04 20:48:53,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:48:53,923 INFO L93 Difference]: Finished difference Result 458 states and 546 transitions. [2020-09-04 20:48:53,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 20:48:53,926 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-04 20:48:53,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:48:53,946 INFO L225 Difference]: With dead ends: 458 [2020-09-04 20:48:53,946 INFO L226 Difference]: Without dead ends: 287 [2020-09-04 20:48:53,953 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 [2020-09-04 20:48:53,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-04 20:48:54,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 245. [2020-09-04 20:48:54,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-09-04 20:48:54,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 265 transitions. [2020-09-04 20:48:54,099 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 265 transitions. Word has length 153 [2020-09-04 20:48:54,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:48:54,104 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 265 transitions. [2020-09-04 20:48:54,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 20:48:54,104 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 265 transitions. [2020-09-04 20:48:54,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-04 20:48:54,119 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:48:54,119 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:48:54,121 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 20:48:54,121 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:48:54,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:48:54,122 INFO L82 PathProgramCache]: Analyzing trace with hash -809983640, now seen corresponding path program 1 times [2020-09-04 20:48:54,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:48:54,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [621387814] [2020-09-04 20:48:54,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:48:54,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:54,597 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:48:54,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:48:54,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:54,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:48:54,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:54,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:48:54,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:54,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:48:54,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:54,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:48:54,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:54,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-04 20:48:54,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:54,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 20:48:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:54,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-04 20:48:54,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:54,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:48:54,711 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [621387814] [2020-09-04 20:48:54,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:48:54,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 20:48:54,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774125840] [2020-09-04 20:48:54,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 20:48:54,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:48:54,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 20:48:54,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 20:48:54,715 INFO L87 Difference]: Start difference. First operand 245 states and 265 transitions. Second operand 4 states. [2020-09-04 20:48:55,321 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:48:56,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:48:56,190 INFO L93 Difference]: Finished difference Result 365 states and 409 transitions. [2020-09-04 20:48:56,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 20:48:56,191 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-04 20:48:56,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:48:56,196 INFO L225 Difference]: With dead ends: 365 [2020-09-04 20:48:56,196 INFO L226 Difference]: Without dead ends: 270 [2020-09-04 20:48:56,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 20:48:56,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-09-04 20:48:56,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 235. [2020-09-04 20:48:56,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-09-04 20:48:56,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 252 transitions. [2020-09-04 20:48:56,279 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 252 transitions. Word has length 154 [2020-09-04 20:48:56,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:48:56,280 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 252 transitions. [2020-09-04 20:48:56,280 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 20:48:56,280 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 252 transitions. [2020-09-04 20:48:56,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-04 20:48:56,282 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:48:56,283 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] [2020-09-04 20:48:56,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 20:48:56,283 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:48:56,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:48:56,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1505861819, now seen corresponding path program 1 times [2020-09-04 20:48:56,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:48:56,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669961996] [2020-09-04 20:48:56,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:48:56,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:56,670 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:48:56,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:48:56,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:56,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:48:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:56,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:48:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:56,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:48:56,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:56,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:48:56,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:56,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-04 20:48:56,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:56,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-04 20:48:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:56,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-04 20:48:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:56,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-04 20:48:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:48:56,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:48:56,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669961996] [2020-09-04 20:48:56,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:48:56,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 20:48:56,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933526973] [2020-09-04 20:48:56,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 20:48:56,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:48:56,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 20:48:56,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-04 20:48:56,848 INFO L87 Difference]: Start difference. First operand 235 states and 252 transitions. Second operand 10 states. [2020-09-04 20:48:57,560 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:48:58,021 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:48:58,347 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-04 20:48:58,594 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:48:58,927 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:48:59,214 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:49:00,172 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:49:02,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:49:02,430 INFO L93 Difference]: Finished difference Result 647 states and 752 transitions. [2020-09-04 20:49:02,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-04 20:49:02,436 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-09-04 20:49:02,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:49:02,442 INFO L225 Difference]: With dead ends: 647 [2020-09-04 20:49:02,442 INFO L226 Difference]: Without dead ends: 522 [2020-09-04 20:49:02,444 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-04 20:49:02,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2020-09-04 20:49:02,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 431. [2020-09-04 20:49:02,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2020-09-04 20:49:02,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 480 transitions. [2020-09-04 20:49:02,602 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 480 transitions. Word has length 167 [2020-09-04 20:49:02,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:49:02,602 INFO L479 AbstractCegarLoop]: Abstraction has 431 states and 480 transitions. [2020-09-04 20:49:02,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 20:49:02,603 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 480 transitions. [2020-09-04 20:49:02,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-04 20:49:02,606 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:49:02,606 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:49:02,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 20:49:02,607 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:49:02,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:49:02,607 INFO L82 PathProgramCache]: Analyzing trace with hash 955206154, now seen corresponding path program 1 times [2020-09-04 20:49:02,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:49:02,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [917475791] [2020-09-04 20:49:02,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:49:02,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:02,957 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:49:02,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:49:03,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:03,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:49:03,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:03,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:49:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:03,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:49:03,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:03,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:49:03,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:03,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 20:49:03,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:03,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-04 20:49:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:03,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-04 20:49:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:03,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-04 20:49:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:03,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:49:03,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [917475791] [2020-09-04 20:49:03,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:49:03,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 20:49:03,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628394940] [2020-09-04 20:49:03,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 20:49:03,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:49:03,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 20:49:03,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 20:49:03,180 INFO L87 Difference]: Start difference. First operand 431 states and 480 transitions. Second operand 9 states. [2020-09-04 20:49:03,811 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:49:05,670 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:49:05,992 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:49:06,340 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:49:06,739 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:49:07,041 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:49:07,346 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:49:07,633 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:49:08,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:49:08,462 INFO L93 Difference]: Finished difference Result 1151 states and 1381 transitions. [2020-09-04 20:49:08,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-04 20:49:08,462 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-04 20:49:08,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:49:08,469 INFO L225 Difference]: With dead ends: 1151 [2020-09-04 20:49:08,469 INFO L226 Difference]: Without dead ends: 830 [2020-09-04 20:49:08,471 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-04 20:49:08,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2020-09-04 20:49:08,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 731. [2020-09-04 20:49:08,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 731 states. [2020-09-04 20:49:08,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 837 transitions. [2020-09-04 20:49:08,725 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 837 transitions. Word has length 172 [2020-09-04 20:49:08,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:49:08,726 INFO L479 AbstractCegarLoop]: Abstraction has 731 states and 837 transitions. [2020-09-04 20:49:08,726 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 20:49:08,726 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 837 transitions. [2020-09-04 20:49:08,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-04 20:49:08,730 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:49:08,731 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:49:08,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 20:49:08,731 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:49:08,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:49:08,731 INFO L82 PathProgramCache]: Analyzing trace with hash 430422311, now seen corresponding path program 1 times [2020-09-04 20:49:08,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:49:08,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [907877629] [2020-09-04 20:49:08,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:49:08,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:49:08,810 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:49:08,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:49:08,915 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:49:09,146 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 20:49:09,146 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 20:49:09,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 20:49:09,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 08:49:09 BoogieIcfgContainer [2020-09-04 20:49:09,453 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 20:49:09,456 INFO L168 Benchmark]: Toolchain (without parser) took 20112.42 ms. Allocated memory was 137.9 MB in the beginning and 542.1 MB in the end (delta: 404.2 MB). Free memory was 101.1 MB in the beginning and 220.6 MB in the end (delta: -119.6 MB). Peak memory consumption was 284.7 MB. Max. memory is 7.1 GB. [2020-09-04 20:49:09,458 INFO L168 Benchmark]: CDTParser took 0.91 ms. Allocated memory is still 137.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 20:49:09,464 INFO L168 Benchmark]: CACSL2BoogieTranslator took 746.66 ms. Allocated memory was 137.9 MB in the beginning and 203.4 MB in the end (delta: 65.5 MB). Free memory was 100.9 MB in the beginning and 172.8 MB in the end (delta: -71.9 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. [2020-09-04 20:49:09,465 INFO L168 Benchmark]: Boogie Preprocessor took 101.88 ms. Allocated memory is still 203.4 MB. Free memory was 172.8 MB in the beginning and 168.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-04 20:49:09,466 INFO L168 Benchmark]: RCFGBuilder took 1182.46 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 168.6 MB in the beginning and 179.2 MB in the end (delta: -10.6 MB). Peak memory consumption was 86.8 MB. Max. memory is 7.1 GB. [2020-09-04 20:49:09,467 INFO L168 Benchmark]: TraceAbstraction took 18076.18 ms. Allocated memory was 234.9 MB in the beginning and 542.1 MB in the end (delta: 307.2 MB). Free memory was 179.2 MB in the beginning and 220.6 MB in the end (delta: -41.5 MB). Peak memory consumption was 265.8 MB. Max. memory is 7.1 GB. [2020-09-04 20:49:09,478 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.91 ms. Allocated memory is still 137.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 746.66 ms. Allocated memory was 137.9 MB in the beginning and 203.4 MB in the end (delta: 65.5 MB). Free memory was 100.9 MB in the beginning and 172.8 MB in the end (delta: -71.9 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.88 ms. Allocated memory is still 203.4 MB. Free memory was 172.8 MB in the beginning and 168.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1182.46 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 168.6 MB in the beginning and 179.2 MB in the end (delta: -10.6 MB). Peak memory consumption was 86.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18076.18 ms. Allocated memory was 234.9 MB in the beginning and 542.1 MB in the end (delta: 307.2 MB). Free memory was 179.2 MB in the beginning and 220.6 MB in the end (delta: -41.5 MB). Peak memory consumption was 265.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 927]: 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; VAL [\old(cleanupTimeShifts)=171, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=144, \old(pumpRunning)=132, \old(systemActive)=131, \old(waterLevel)=137, cleanupTimeShifts=171, head={0:0}, methaneLevelCritical=144, pumpRunning=132, systemActive=131, waterLevel=137] [L444] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=171, \old(head)=176, \old(head)=162, \old(methaneLevelCritical)=144, \old(pumpRunning)=132, \old(systemActive)=131, \old(waterLevel)=137, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=144, pumpRunning=132, systemActive=131, waterLevel=137] [L590] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=171, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=144, \old(pumpRunning)=132, \old(systemActive)=131, \old(waterLevel)=137, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=144, pumpRunning=0, systemActive=131, waterLevel=137] [L591] int systemActive = 1; VAL [\old(cleanupTimeShifts)=171, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=144, \old(pumpRunning)=132, \old(systemActive)=131, \old(waterLevel)=137, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=144, pumpRunning=0, systemActive=1, waterLevel=137] [L834] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=171, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=144, \old(pumpRunning)=132, \old(systemActive)=131, \old(waterLevel)=137, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=144, pumpRunning=0, systemActive=1, waterLevel=1] [L835] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=171, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=144, \old(pumpRunning)=132, \old(systemActive)=131, \old(waterLevel)=137, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L522] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L523] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L527] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L528] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L529] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L72] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L73] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L529] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L529] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L531] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L533] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L534] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L516] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L766] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L767] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L768] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L769] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L770] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L773] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L775] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L777] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L783] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L785] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L787] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L852] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L853] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L787] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L793] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L795] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L803] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=0, waterLevel=2] [L805] COND FALSE !(\read(tmp___2)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=0, waterLevel=2] [L811] tmp___1 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L813] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L815] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L745] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L752] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L815] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L822] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L597] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L604] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L612] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L550] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L551] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L552] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L556] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L873] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L876] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L877] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L556] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L556] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L558] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L562] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L905] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L908] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L909] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L562] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L562] tmp___0 = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L564] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L566] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L678] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L681] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L682] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L566] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L566] tmp___1 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L568] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L572] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L927] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 619 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 13.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 952 SDtfs, 1387 SDslu, 1400 SDs, 0 SdLazy, 2906 SolverSat, 480 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=731occurred 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: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 823 NumberOfCodeBlocks, 823 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 250102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...