/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_product07.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 16:34:44,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 16:34:44,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 16:34:44,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 16:34:44,883 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 16:34:44,884 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 16:34:44,885 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 16:34:44,887 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 16:34:44,889 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 16:34:44,889 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 16:34:44,890 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 16:34:44,892 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 16:34:44,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 16:34:44,893 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 16:34:44,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 16:34:44,895 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 16:34:44,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 16:34:44,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 16:34:44,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 16:34:44,901 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 16:34:44,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 16:34:44,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 16:34:44,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 16:34:44,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 16:34:44,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 16:34:44,909 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 16:34:44,909 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 16:34:44,910 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 16:34:44,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 16:34:44,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 16:34:44,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 16:34:44,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 16:34:44,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 16:34:44,914 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 16:34:44,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 16:34:44,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 16:34:44,917 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 16:34:44,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 16:34:44,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 16:34:44,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 16:34:44,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 16:34:44,920 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 16:34:44,930 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 16:34:44,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 16:34:44,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 16:34:44,932 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 16:34:44,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 16:34:44,932 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 16:34:44,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 16:34:44,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 16:34:44,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 16:34:44,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 16:34:44,933 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 16:34:44,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 16:34:44,933 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 16:34:44,933 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 16:34:44,934 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 16:34:44,934 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 16:34:44,934 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 16:34:44,934 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 16:34:44,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 16:34:44,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 16:34:44,935 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 16:34:44,935 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 16:34:44,935 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 [2020-07-17 16:34:45,201 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 16:34:45,213 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 16:34:45,216 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 16:34:45,218 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 16:34:45,218 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 16:34:45,219 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2020-07-17 16:34:45,280 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbdcc520b/d973e1fea1f04930ab8ae72b396e0d3d/FLAGd907ca476 [2020-07-17 16:34:45,737 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 16:34:45,738 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2020-07-17 16:34:45,750 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbdcc520b/d973e1fea1f04930ab8ae72b396e0d3d/FLAGd907ca476 [2020-07-17 16:34:46,102 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbdcc520b/d973e1fea1f04930ab8ae72b396e0d3d [2020-07-17 16:34:46,110 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 16:34:46,114 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 16:34:46,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 16:34:46,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 16:34:46,122 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 16:34:46,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 04:34:46" (1/1) ... [2020-07-17 16:34:46,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dcd9b0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:34:46, skipping insertion in model container [2020-07-17 16:34:46,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 04:34:46" (1/1) ... [2020-07-17 16:34:46,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 16:34:46,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 16:34:46,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 16:34:46,654 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 16:34:46,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 16:34:46,787 INFO L208 MainTranslator]: Completed translation [2020-07-17 16:34:46,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:34:46 WrapperNode [2020-07-17 16:34:46,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 16:34:46,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 16:34:46,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 16:34:46,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 16:34:46,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:34:46" (1/1) ... [2020-07-17 16:34:46,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:34:46" (1/1) ... [2020-07-17 16:34:46,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:34:46" (1/1) ... [2020-07-17 16:34:46,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:34:46" (1/1) ... [2020-07-17 16:34:46,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:34:46" (1/1) ... [2020-07-17 16:34:46,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:34:46" (1/1) ... [2020-07-17 16:34:46,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:34:46" (1/1) ... [2020-07-17 16:34:46,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 16:34:46,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 16:34:46,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 16:34:46,889 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 16:34:46,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:34:46" (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 [2020-07-17 16:34:46,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 16:34:46,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 16:34:46,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-17 16:34:46,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-17 16:34:46,964 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-17 16:34:46,964 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-17 16:34:46,964 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-17 16:34:46,965 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-17 16:34:46,965 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-17 16:34:46,965 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-17 16:34:46,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-17 16:34:46,966 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-17 16:34:46,966 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 16:34:46,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-17 16:34:46,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-17 16:34:46,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-17 16:34:46,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-17 16:34:46,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-17 16:34:46,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-17 16:34:46,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-17 16:34:46,969 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-17 16:34:46,969 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-17 16:34:46,971 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-17 16:34:46,971 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-17 16:34:46,971 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-17 16:34:46,972 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-17 16:34:46,972 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-17 16:34:46,972 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-17 16:34:46,972 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-17 16:34:46,972 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-17 16:34:46,972 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-17 16:34:46,972 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-17 16:34:46,973 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-17 16:34:46,973 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-17 16:34:46,973 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-17 16:34:46,973 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-17 16:34:46,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 16:34:46,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 16:34:46,973 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-17 16:34:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-17 16:34:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-17 16:34:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-17 16:34:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-17 16:34:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-17 16:34:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-17 16:34:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-17 16:34:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-17 16:34:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-17 16:34:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-17 16:34:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-17 16:34:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-17 16:34:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-17 16:34:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-17 16:34:46,976 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 16:34:46,976 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-17 16:34:46,976 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 16:34:46,976 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-17 16:34:46,976 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-17 16:34:46,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 16:34:46,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-17 16:34:46,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 16:34:46,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-17 16:34:46,977 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-17 16:34:46,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 16:34:46,977 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-17 16:34:46,978 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-17 16:34:46,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 16:34:46,978 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-17 16:34:46,978 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-17 16:34:46,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 16:34:46,978 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-17 16:34:46,978 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-17 16:34:46,979 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-17 16:34:46,979 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-17 16:34:46,979 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-17 16:34:46,979 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-17 16:34:46,980 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-17 16:34:46,980 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-17 16:34:46,980 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-17 16:34:46,980 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-17 16:34:46,981 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-17 16:34:46,981 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-17 16:34:46,981 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-17 16:34:46,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 16:34:46,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-17 16:34:46,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 16:34:48,006 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 16:34:48,007 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-17 16:34:48,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 04:34:48 BoogieIcfgContainer [2020-07-17 16:34:48,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 16:34:48,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 16:34:48,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 16:34:48,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 16:34:48,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 04:34:46" (1/3) ... [2020-07-17 16:34:48,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc0cc63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 04:34:48, skipping insertion in model container [2020-07-17 16:34:48,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:34:46" (2/3) ... [2020-07-17 16:34:48,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc0cc63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 04:34:48, skipping insertion in model container [2020-07-17 16:34:48,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 04:34:48" (3/3) ... [2020-07-17 16:34:48,020 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product07.cil.c [2020-07-17 16:34:48,030 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 16:34:48,038 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 16:34:48,050 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 16:34:48,067 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 16:34:48,068 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 16:34:48,068 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-17 16:34:48,068 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 16:34:48,068 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 16:34:48,068 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 16:34:48,069 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 16:34:48,069 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 16:34:48,088 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2020-07-17 16:34:48,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-17 16:34:48,109 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:34:48,110 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] [2020-07-17 16:34:48,110 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:34:48,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:34:48,116 INFO L82 PathProgramCache]: Analyzing trace with hash 957582246, now seen corresponding path program 1 times [2020-07-17 16:34:48,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:34:48,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770850180] [2020-07-17 16:34:48,126 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:34:48,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:48,778 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:34:48,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:48,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:48,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:48,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:48,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:48,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:34:48,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [770850180] [2020-07-17 16:34:48,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:34:48,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 16:34:48,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185322180] [2020-07-17 16:34:48,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 16:34:48,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:34:48,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 16:34:48,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 16:34:48,993 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 3 states. [2020-07-17 16:34:50,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:34:50,245 INFO L93 Difference]: Finished difference Result 427 states and 514 transitions. [2020-07-17 16:34:50,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 16:34:50,247 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-17 16:34:50,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:34:50,264 INFO L225 Difference]: With dead ends: 427 [2020-07-17 16:34:50,264 INFO L226 Difference]: Without dead ends: 271 [2020-07-17 16:34:50,269 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 [2020-07-17 16:34:50,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-07-17 16:34:50,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 230. [2020-07-17 16:34:50,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-07-17 16:34:50,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 250 transitions. [2020-07-17 16:34:50,389 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 250 transitions. Word has length 153 [2020-07-17 16:34:50,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:34:50,390 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 250 transitions. [2020-07-17 16:34:50,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 16:34:50,390 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 250 transitions. [2020-07-17 16:34:50,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-17 16:34:50,394 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:34:50,394 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] [2020-07-17 16:34:50,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 16:34:50,395 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:34:50,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:34:50,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1482403721, now seen corresponding path program 1 times [2020-07-17 16:34:50,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:34:50,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1181649432] [2020-07-17 16:34:50,396 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:34:50,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:50,704 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:34:50,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:50,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:50,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:50,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:50,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:50,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:50,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:50,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:34:50,813 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1181649432] [2020-07-17 16:34:50,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:34:50,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 16:34:50,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614111259] [2020-07-17 16:34:50,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 16:34:50,816 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:34:50,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 16:34:50,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 16:34:50,817 INFO L87 Difference]: Start difference. First operand 230 states and 250 transitions. Second operand 4 states. [2020-07-17 16:34:51,418 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:34:52,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:34:52,136 INFO L93 Difference]: Finished difference Result 338 states and 381 transitions. [2020-07-17 16:34:52,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 16:34:52,137 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-07-17 16:34:52,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:34:52,141 INFO L225 Difference]: With dead ends: 338 [2020-07-17 16:34:52,142 INFO L226 Difference]: Without dead ends: 254 [2020-07-17 16:34:52,143 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 [2020-07-17 16:34:52,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-07-17 16:34:52,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 220. [2020-07-17 16:34:52,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-07-17 16:34:52,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 237 transitions. [2020-07-17 16:34:52,206 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 237 transitions. Word has length 154 [2020-07-17 16:34:52,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:34:52,207 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 237 transitions. [2020-07-17 16:34:52,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 16:34:52,207 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 237 transitions. [2020-07-17 16:34:52,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-17 16:34:52,210 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:34:52,210 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:34:52,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 16:34:52,211 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:34:52,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:34:52,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1724777335, now seen corresponding path program 1 times [2020-07-17 16:34:52,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:34:52,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1769647017] [2020-07-17 16:34:52,212 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:34:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:52,563 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:34:52,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:52,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:52,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:52,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:52,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:52,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:52,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:52,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:52,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:34:52,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1769647017] [2020-07-17 16:34:52,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:34:52,709 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-17 16:34:52,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136637170] [2020-07-17 16:34:52,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 16:34:52,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:34:52,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 16:34:52,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-17 16:34:52,712 INFO L87 Difference]: Start difference. First operand 220 states and 237 transitions. Second operand 9 states. [2020-07-17 16:34:53,326 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:34:53,666 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:34:53,887 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:34:54,113 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:34:54,349 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:34:54,602 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:34:55,515 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:34:57,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:34:57,171 INFO L93 Difference]: Finished difference Result 578 states and 668 transitions. [2020-07-17 16:34:57,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-17 16:34:57,175 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-07-17 16:34:57,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:34:57,180 INFO L225 Difference]: With dead ends: 578 [2020-07-17 16:34:57,180 INFO L226 Difference]: Without dead ends: 468 [2020-07-17 16:34:57,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-07-17 16:34:57,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2020-07-17 16:34:57,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 405. [2020-07-17 16:34:57,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2020-07-17 16:34:57,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 454 transitions. [2020-07-17 16:34:57,325 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 454 transitions. Word has length 163 [2020-07-17 16:34:57,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:34:57,325 INFO L479 AbstractCegarLoop]: Abstraction has 405 states and 454 transitions. [2020-07-17 16:34:57,326 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 16:34:57,326 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 454 transitions. [2020-07-17 16:34:57,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-07-17 16:34:57,329 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:34:57,329 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:34:57,329 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 16:34:57,329 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:34:57,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:34:57,330 INFO L82 PathProgramCache]: Analyzing trace with hash 775852866, now seen corresponding path program 1 times [2020-07-17 16:34:57,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:34:57,330 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [966002427] [2020-07-17 16:34:57,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:34:57,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:57,640 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:34:57,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:57,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:57,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:57,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:57,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:57,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:57,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:57,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:34:57,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [966002427] [2020-07-17 16:34:57,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:34:57,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-17 16:34:57,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385013022] [2020-07-17 16:34:57,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 16:34:57,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:34:57,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 16:34:57,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-17 16:34:57,815 INFO L87 Difference]: Start difference. First operand 405 states and 454 transitions. Second operand 9 states. [2020-07-17 16:34:58,452 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:35:00,039 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:35:00,284 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:35:00,537 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:35:00,800 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:35:01,036 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:35:01,298 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:35:01,530 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:35:02,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:35:02,220 INFO L93 Difference]: Finished difference Result 1162 states and 1453 transitions. [2020-07-17 16:35:02,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-17 16:35:02,221 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 171 [2020-07-17 16:35:02,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:35:02,230 INFO L225 Difference]: With dead ends: 1162 [2020-07-17 16:35:02,230 INFO L226 Difference]: Without dead ends: 867 [2020-07-17 16:35:02,232 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-07-17 16:35:02,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2020-07-17 16:35:02,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 679. [2020-07-17 16:35:02,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 679 states. [2020-07-17 16:35:02,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 785 transitions. [2020-07-17 16:35:02,512 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 785 transitions. Word has length 171 [2020-07-17 16:35:02,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:35:02,512 INFO L479 AbstractCegarLoop]: Abstraction has 679 states and 785 transitions. [2020-07-17 16:35:02,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 16:35:02,513 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 785 transitions. [2020-07-17 16:35:02,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-07-17 16:35:02,516 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:35:02,517 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, 1, 1, 1, 1] [2020-07-17 16:35:02,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 16:35:02,517 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:35:02,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:35:02,518 INFO L82 PathProgramCache]: Analyzing trace with hash 615873622, now seen corresponding path program 1 times [2020-07-17 16:35:02,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:35:02,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1057101882] [2020-07-17 16:35:02,518 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:35:02,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:35:02,792 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:35:02,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:35:02,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:35:02,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:35:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:35:02,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:35:02,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:35:02,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:35:02,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:35:02,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:35:02,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:35:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:35:02,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:35:02,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:35:02,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1057101882] [2020-07-17 16:35:02,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:35:02,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 16:35:02,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691759175] [2020-07-17 16:35:02,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 16:35:02,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:35:02,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 16:35:02,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-17 16:35:02,989 INFO L87 Difference]: Start difference. First operand 679 states and 785 transitions. Second operand 6 states. [2020-07-17 16:35:03,616 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:35:04,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:35:04,629 INFO L93 Difference]: Finished difference Result 1141 states and 1356 transitions. [2020-07-17 16:35:04,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-17 16:35:04,630 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 181 [2020-07-17 16:35:04,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:35:04,635 INFO L225 Difference]: With dead ends: 1141 [2020-07-17 16:35:04,635 INFO L226 Difference]: Without dead ends: 572 [2020-07-17 16:35:04,637 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-17 16:35:04,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2020-07-17 16:35:04,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 542. [2020-07-17 16:35:04,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2020-07-17 16:35:04,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 593 transitions. [2020-07-17 16:35:04,813 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 593 transitions. Word has length 181 [2020-07-17 16:35:04,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:35:04,813 INFO L479 AbstractCegarLoop]: Abstraction has 542 states and 593 transitions. [2020-07-17 16:35:04,813 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 16:35:04,813 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 593 transitions. [2020-07-17 16:35:04,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-07-17 16:35:04,816 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:35:04,817 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:35:04,817 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 16:35:04,817 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:35:04,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:35:04,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1861287888, now seen corresponding path program 1 times [2020-07-17 16:35:04,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:35:04,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1333117166] [2020-07-17 16:35:04,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:35:04,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 16:35:04,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 16:35:05,099 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-17 16:35:05,099 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 16:35:05,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-17 16:35:05,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 04:35:05 BoogieIcfgContainer [2020-07-17 16:35:05,310 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 16:35:05,312 INFO L168 Benchmark]: Toolchain (without parser) took 19200.30 ms. Allocated memory was 139.5 MB in the beginning and 572.0 MB in the end (delta: 432.5 MB). Free memory was 99.1 MB in the beginning and 107.3 MB in the end (delta: -8.2 MB). Peak memory consumption was 424.4 MB. Max. memory is 7.1 GB. [2020-07-17 16:35:05,313 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 16:35:05,314 INFO L168 Benchmark]: CACSL2BoogieTranslator took 671.91 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 98.7 MB in the beginning and 173.3 MB in the end (delta: -74.6 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2020-07-17 16:35:05,315 INFO L168 Benchmark]: Boogie Preprocessor took 100.03 ms. Allocated memory is still 203.4 MB. Free memory was 173.3 MB in the beginning and 169.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-17 16:35:05,316 INFO L168 Benchmark]: RCFGBuilder took 1123.88 ms. Allocated memory was 203.4 MB in the beginning and 233.8 MB in the end (delta: 30.4 MB). Free memory was 169.1 MB in the beginning and 182.7 MB in the end (delta: -13.6 MB). Peak memory consumption was 88.2 MB. Max. memory is 7.1 GB. [2020-07-17 16:35:05,316 INFO L168 Benchmark]: TraceAbstraction took 17296.57 ms. Allocated memory was 233.8 MB in the beginning and 572.0 MB in the end (delta: 338.2 MB). Free memory was 182.7 MB in the beginning and 107.3 MB in the end (delta: 75.4 MB). Peak memory consumption was 413.6 MB. Max. memory is 7.1 GB. [2020-07-17 16:35:05,320 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 671.91 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 98.7 MB in the beginning and 173.3 MB in the end (delta: -74.6 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.03 ms. Allocated memory is still 203.4 MB. Free memory was 173.3 MB in the beginning and 169.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1123.88 ms. Allocated memory was 203.4 MB in the beginning and 233.8 MB in the end (delta: 30.4 MB). Free memory was 169.1 MB in the beginning and 182.7 MB in the end (delta: -13.6 MB). Peak memory consumption was 88.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17296.57 ms. Allocated memory was 233.8 MB in the beginning and 572.0 MB in the end (delta: 338.2 MB). Free memory was 182.7 MB in the beginning and 107.3 MB in the end (delta: 75.4 MB). Peak memory consumption was 413.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L87] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=171, \old(head)=176, \old(head)=162, \old(methaneLevelCritical)=145, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=139, cleanupTimeShifts=4, head={176:162}, methaneLevelCritical=145, pumpRunning=135, systemActive=134, waterLevel=139] [L357] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=171, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=145, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=145, pumpRunning=135, systemActive=134, waterLevel=139] [L596] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=171, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=145, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=145, pumpRunning=0, systemActive=134, waterLevel=139] [L597] int systemActive = 1; VAL [\old(cleanupTimeShifts)=171, \old(head)=176, \old(head)=162, \old(methaneLevelCritical)=145, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=145, pumpRunning=0, systemActive=1, waterLevel=139] [L811] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=171, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=145, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=145, pumpRunning=0, systemActive=1, waterLevel=1] [L812] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=171, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=145, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L165] 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] [L166] 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] [L170] 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] [L171] 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] [L172] 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] [L78] 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] [L81] 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] [L82] 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] [L172] 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] [L172] 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] [L174] 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] [L176] 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] [L177] 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] [L159] 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] [L745] 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] [L746] 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] [L747] 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] [L748] 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] [L749] 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] [L752] 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] [L754] 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] [L756] 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] [L762] 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] [L764] 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] [L766] 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] [L829] 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] [L830] 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] [L766] 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] [L772] 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] [L774] 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] [L782] tmp___2 = __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___2=1, waterLevel=2] [L784] COND TRUE \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=1, waterLevel=2] [L799] 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=1, waterLevel=2] [L603] 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=1, waterLevel=2] [L610] COND TRUE \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=1, waterLevel=2] [L612] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L632] 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=1, waterLevel=2] [L635] 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=1, waterLevel=2] [L650] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L612] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L618] 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=1, waterLevel=2] [L558] 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=1, waterLevel=2] [L559] 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=1, waterLevel=2] [L560] 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=1, waterLevel=2] [L564] 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=1, waterLevel=2] [L850] 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=1, waterLevel=2] [L853] 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=1, waterLevel=2] [L854] 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=1, waterLevel=2] [L564] 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=1, waterLevel=2] [L564] 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=1, tmp=0, waterLevel=2] [L566] 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=1, tmp=0, waterLevel=2] [L570] 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=1, waterLevel=2] [L882] 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=1, waterLevel=2] [L885] 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=1, waterLevel=2] [L886] 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=1, waterLevel=2] [L570] 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=1, tmp=0, waterLevel=2] [L570] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L572] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L574] 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=1, waterLevel=2] [L684] 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=1, waterLevel=2] [L687] 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=1, waterLevel=2] [L688] 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=1, waterLevel=2] [L574] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L574] 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=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L576] 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=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L580] 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=1, waterLevel=2] [L44] __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=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 596 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 13.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1057 SDtfs, 1491 SDslu, 1324 SDs, 0 SdLazy, 2852 SolverSat, 493 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 153 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=679occurred 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: 0.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 356 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 998 NumberOfCodeBlocks, 998 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 817 ConstructedInterpolants, 0 QuantifiedInterpolants, 339828 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...