./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8521353bcf4bae83665566564f0550ca2d5ed2f2d2c87d1236006cfbb2433fe4 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:15:35,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:15:35,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:15:35,052 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:15:35,052 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:15:35,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:15:35,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:15:35,062 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:15:35,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:15:35,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:15:35,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:15:35,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:15:35,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:15:35,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:15:35,072 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:15:35,073 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:15:35,074 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:15:35,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:15:35,076 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:15:35,078 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:15:35,081 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:15:35,082 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:15:35,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:15:35,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:15:35,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:15:35,087 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:15:35,088 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:15:35,089 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:15:35,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:15:35,090 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:15:35,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:15:35,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:15:35,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:15:35,093 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:15:35,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:15:35,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:15:35,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:15:35,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:15:35,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:15:35,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:15:35,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:15:35,096 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:15:35,114 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:15:35,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:15:35,119 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:15:35,120 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:15:35,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:15:35,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:15:35,121 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:15:35,121 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:15:35,122 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:15:35,122 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:15:35,122 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:15:35,123 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:15:35,123 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:15:35,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:15:35,123 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:15:35,123 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:15:35,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:15:35,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:15:35,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:15:35,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:15:35,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:15:35,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:15:35,124 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:15:35,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:15:35,124 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:15:35,125 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:15:35,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:15:35,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:15:35,125 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:15:35,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:15:35,125 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:15:35,126 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:15:35,126 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8521353bcf4bae83665566564f0550ca2d5ed2f2d2c87d1236006cfbb2433fe4 [2022-02-21 04:15:35,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:15:35,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:15:35,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:15:35,354 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:15:35,355 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:15:35,356 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c [2022-02-21 04:15:35,402 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10ff8159b/477e13972b2d4690b017473bbf64bce0/FLAGb9cdcd0bb [2022-02-21 04:15:35,784 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:15:35,785 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c [2022-02-21 04:15:35,792 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10ff8159b/477e13972b2d4690b017473bbf64bce0/FLAGb9cdcd0bb [2022-02-21 04:15:36,174 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10ff8159b/477e13972b2d4690b017473bbf64bce0 [2022-02-21 04:15:36,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:15:36,177 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:15:36,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:36,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:15:36,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:15:36,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:36" (1/1) ... [2022-02-21 04:15:36,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@611550e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:36, skipping insertion in model container [2022-02-21 04:15:36,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:36" (1/1) ... [2022-02-21 04:15:36,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:15:36,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:15:36,386 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c[6162,6175] [2022-02-21 04:15:36,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:36,455 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:15:36,503 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c[6162,6175] [2022-02-21 04:15:36,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:36,565 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:15:36,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:36 WrapperNode [2022-02-21 04:15:36,566 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:36,567 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:36,567 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:15:36,567 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:15:36,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:36" (1/1) ... [2022-02-21 04:15:36,583 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:36" (1/1) ... [2022-02-21 04:15:36,617 INFO L137 Inliner]: procedures = 57, calls = 157, calls flagged for inlining = 54, calls inlined = 80, statements flattened = 609 [2022-02-21 04:15:36,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:36,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:15:36,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:15:36,618 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:15:36,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:36" (1/1) ... [2022-02-21 04:15:36,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:36" (1/1) ... [2022-02-21 04:15:36,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:36" (1/1) ... [2022-02-21 04:15:36,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:36" (1/1) ... [2022-02-21 04:15:36,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:36" (1/1) ... [2022-02-21 04:15:36,656 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:36" (1/1) ... [2022-02-21 04:15:36,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:36" (1/1) ... [2022-02-21 04:15:36,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:15:36,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:15:36,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:15:36,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:15:36,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:36" (1/1) ... [2022-02-21 04:15:36,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:15:36,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:15:36,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:15:36,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:15:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:15:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:15:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:15:36,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:15:36,808 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:15:36,810 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:15:37,255 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:15:37,262 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:15:37,264 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:15:37,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:37 BoogieIcfgContainer [2022-02-21 04:15:37,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:15:37,269 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:15:37,269 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:15:37,272 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:15:37,273 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:37,273 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:15:36" (1/3) ... [2022-02-21 04:15:37,274 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68115f32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:37, skipping insertion in model container [2022-02-21 04:15:37,274 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:37,274 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:36" (2/3) ... [2022-02-21 04:15:37,274 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68115f32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:37, skipping insertion in model container [2022-02-21 04:15:37,274 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:37,275 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:37" (3/3) ... [2022-02-21 04:15:37,276 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product52.cil.c [2022-02-21 04:15:37,313 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:15:37,314 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:15:37,314 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:15:37,314 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:15:37,314 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:15:37,314 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:15:37,314 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:15:37,314 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:15:37,336 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 167 states, 166 states have (on average 1.3734939759036144) internal successors, (228), 166 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:37,379 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 109 [2022-02-21 04:15:37,380 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:37,381 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:37,385 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:37,386 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:37,386 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:15:37,390 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 167 states, 166 states have (on average 1.3734939759036144) internal successors, (228), 166 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:37,407 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 109 [2022-02-21 04:15:37,408 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:37,408 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:37,408 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:37,408 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:37,412 INFO L791 eck$LassoCheckResult]: Stem: 147#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 48#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 11#L981true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 51#L974true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 40#L989true main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 94#L553true assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 118#L527true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 26#L409-2true [2022-02-21 04:15:37,413 INFO L793 eck$LassoCheckResult]: Loop: 26#L409-2true assume !false; 126#L410true assume test_~splverifierCounter~0#1 < 4; 70#L411true test_~tmp~4#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 4#L419true assume !(0 != test_~tmp~4#1); 17#L419-2true test_~tmp___0~2#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 102#L429true assume !(0 != test_~tmp___0~2#1); 60#L429-2true test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 71#L439true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 35#L447true assume !(0 != test_~tmp___1~0#1); 120#L447-2true assume { :begin_inline_timeShift } true; 52#L176true assume !(0 != ~pumpRunning~0); 159#L176-2true assume !(0 != ~systemActive~0); 116#L183-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret27#1, __utac_acc__Specification1_spec__1_#t~ret28#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 148#L101true __utac_acc__Specification1_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret27#1;havoc __utac_acc__Specification1_spec__1_#t~ret27#1; 16#L575true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1); 43#L575-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 72#L193true assume { :end_inline_timeShift } true; 26#L409-2true [2022-02-21 04:15:37,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:37,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:15:37,422 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:37,423 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261315205] [2022-02-21 04:15:37,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:37,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:37,538 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:37,585 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:37,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:37,587 INFO L85 PathProgramCache]: Analyzing trace with hash -902458001, now seen corresponding path program 1 times [2022-02-21 04:15:37,587 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:37,588 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580724518] [2022-02-21 04:15:37,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:37,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:37,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:37,610 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:37,615 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:37,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:37,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1834139605, now seen corresponding path program 1 times [2022-02-21 04:15:37,616 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:37,616 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317320263] [2022-02-21 04:15:37,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:37,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:37,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:37,746 INFO L290 TraceCheckUtils]: 0: Hoare triple {175#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {177#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:37,747 INFO L290 TraceCheckUtils]: 1: Hoare triple {177#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; {177#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:37,747 INFO L290 TraceCheckUtils]: 2: Hoare triple {177#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {177#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:37,748 INFO L290 TraceCheckUtils]: 3: Hoare triple {177#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; {178#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:15:37,748 INFO L290 TraceCheckUtils]: 4: Hoare triple {178#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret26#1;havoc main_#t~ret26#1; {179#(= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0)} is VALID [2022-02-21 04:15:37,749 INFO L290 TraceCheckUtils]: 5: Hoare triple {179#(= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0)} assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; {180#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:37,749 INFO L290 TraceCheckUtils]: 6: Hoare triple {180#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {180#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:37,749 INFO L290 TraceCheckUtils]: 7: Hoare triple {180#(not (= 0 ~systemActive~0))} assume !false; {180#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:37,750 INFO L290 TraceCheckUtils]: 8: Hoare triple {180#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {180#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:37,750 INFO L290 TraceCheckUtils]: 9: Hoare triple {180#(not (= 0 ~systemActive~0))} test_~tmp~4#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; {180#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:37,751 INFO L290 TraceCheckUtils]: 10: Hoare triple {180#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~4#1); {180#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:37,751 INFO L290 TraceCheckUtils]: 11: Hoare triple {180#(not (= 0 ~systemActive~0))} test_~tmp___0~2#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; {180#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:37,752 INFO L290 TraceCheckUtils]: 12: Hoare triple {180#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~2#1); {180#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:37,752 INFO L290 TraceCheckUtils]: 13: Hoare triple {180#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; {180#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:37,753 INFO L290 TraceCheckUtils]: 14: Hoare triple {180#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; {180#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:37,753 INFO L290 TraceCheckUtils]: 15: Hoare triple {180#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___1~0#1); {180#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:37,753 INFO L290 TraceCheckUtils]: 16: Hoare triple {180#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {180#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:37,754 INFO L290 TraceCheckUtils]: 17: Hoare triple {180#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {180#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:37,754 INFO L290 TraceCheckUtils]: 18: Hoare triple {180#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {176#false} is VALID [2022-02-21 04:15:37,755 INFO L290 TraceCheckUtils]: 19: Hoare triple {176#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret27#1, __utac_acc__Specification1_spec__1_#t~ret28#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; {176#false} is VALID [2022-02-21 04:15:37,755 INFO L290 TraceCheckUtils]: 20: Hoare triple {176#false} __utac_acc__Specification1_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret27#1;havoc __utac_acc__Specification1_spec__1_#t~ret27#1; {176#false} is VALID [2022-02-21 04:15:37,756 INFO L290 TraceCheckUtils]: 21: Hoare triple {176#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1); {176#false} is VALID [2022-02-21 04:15:37,756 INFO L290 TraceCheckUtils]: 22: Hoare triple {176#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {176#false} is VALID [2022-02-21 04:15:37,757 INFO L290 TraceCheckUtils]: 23: Hoare triple {176#false} assume { :end_inline_timeShift } true; {176#false} is VALID [2022-02-21 04:15:37,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:15:37,758 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:37,758 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317320263] [2022-02-21 04:15:37,759 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317320263] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:37,759 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:37,759 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:15:37,760 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264036752] [2022-02-21 04:15:37,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:37,871 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:37,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:15:37,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:15:37,898 INFO L87 Difference]: Start difference. First operand has 167 states, 166 states have (on average 1.3734939759036144) internal successors, (228), 166 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:38,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:38,982 INFO L93 Difference]: Finished difference Result 540 states and 710 transitions. [2022-02-21 04:15:38,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:15:38,983 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:39,003 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:39,008 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 540 states and 710 transitions. [2022-02-21 04:15:39,039 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 352 [2022-02-21 04:15:39,060 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 540 states to 500 states and 670 transitions. [2022-02-21 04:15:39,062 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 500 [2022-02-21 04:15:39,064 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 500 [2022-02-21 04:15:39,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 500 states and 670 transitions. [2022-02-21 04:15:39,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:39,069 INFO L681 BuchiCegarLoop]: Abstraction has 500 states and 670 transitions. [2022-02-21 04:15:39,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states and 670 transitions. [2022-02-21 04:15:39,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 206. [2022-02-21 04:15:39,097 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:39,098 INFO L82 GeneralOperation]: Start isEquivalent. First operand 500 states and 670 transitions. Second operand has 206 states, 206 states have (on average 1.3349514563106797) internal successors, (275), 205 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:39,099 INFO L74 IsIncluded]: Start isIncluded. First operand 500 states and 670 transitions. Second operand has 206 states, 206 states have (on average 1.3349514563106797) internal successors, (275), 205 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:39,100 INFO L87 Difference]: Start difference. First operand 500 states and 670 transitions. Second operand has 206 states, 206 states have (on average 1.3349514563106797) internal successors, (275), 205 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:39,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:39,118 INFO L93 Difference]: Finished difference Result 500 states and 670 transitions. [2022-02-21 04:15:39,119 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 670 transitions. [2022-02-21 04:15:39,123 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:39,123 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:39,123 INFO L74 IsIncluded]: Start isIncluded. First operand has 206 states, 206 states have (on average 1.3349514563106797) internal successors, (275), 205 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 500 states and 670 transitions. [2022-02-21 04:15:39,124 INFO L87 Difference]: Start difference. First operand has 206 states, 206 states have (on average 1.3349514563106797) internal successors, (275), 205 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 500 states and 670 transitions. [2022-02-21 04:15:39,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:39,135 INFO L93 Difference]: Finished difference Result 500 states and 670 transitions. [2022-02-21 04:15:39,135 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 670 transitions. [2022-02-21 04:15:39,136 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:39,136 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:39,137 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:39,137 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:39,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 206 states have (on average 1.3349514563106797) internal successors, (275), 205 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:39,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 275 transitions. [2022-02-21 04:15:39,141 INFO L704 BuchiCegarLoop]: Abstraction has 206 states and 275 transitions. [2022-02-21 04:15:39,142 INFO L587 BuchiCegarLoop]: Abstraction has 206 states and 275 transitions. [2022-02-21 04:15:39,142 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:15:39,142 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 206 states and 275 transitions. [2022-02-21 04:15:39,143 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 145 [2022-02-21 04:15:39,143 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:39,143 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:39,143 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:39,143 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:39,144 INFO L791 eck$LassoCheckResult]: Stem: 877#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 806#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 741#L981 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 742#L974 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 795#L989 main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 796#L553 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 850#L527 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 768#L409-2 [2022-02-21 04:15:39,144 INFO L793 eck$LassoCheckResult]: Loop: 768#L409-2 assume !false; 769#L410 assume test_~splverifierCounter~0#1 < 4; 830#L411 test_~tmp~4#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 725#L419 assume !(0 != test_~tmp~4#1); 727#L419-2 test_~tmp___0~2#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 754#L429 assume !(0 != test_~tmp___0~2#1); 763#L429-2 test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 819#L439 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 785#L447 assume !(0 != test_~tmp___1~0#1); 765#L447-2 assume { :begin_inline_timeShift } true; 810#L176 assume !(0 != ~pumpRunning~0); 811#L176-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 842#L234 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 843#L208-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 872#L200-3 assume { :end_inline_processEnvironment__wrappee__base } true; 858#L208-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 821#L234-1 assume { :end_inline_processEnvironment } true; 866#L183-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret27#1, __utac_acc__Specification1_spec__1_#t~ret28#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 867#L101 __utac_acc__Specification1_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret27#1;havoc __utac_acc__Specification1_spec__1_#t~ret27#1; 752#L575 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1); 748#L575-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 801#L193 assume { :end_inline_timeShift } true; 768#L409-2 [2022-02-21 04:15:39,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:39,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:15:39,145 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:39,145 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909681038] [2022-02-21 04:15:39,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:39,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:39,161 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:39,173 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:39,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:39,173 INFO L85 PathProgramCache]: Analyzing trace with hash -2056867099, now seen corresponding path program 1 times [2022-02-21 04:15:39,173 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:39,173 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108220900] [2022-02-21 04:15:39,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:39,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:39,186 INFO L290 TraceCheckUtils]: 0: Hoare triple {1936#true} assume !false; {1936#true} is VALID [2022-02-21 04:15:39,187 INFO L290 TraceCheckUtils]: 1: Hoare triple {1936#true} assume test_~splverifierCounter~0#1 < 4; {1936#true} is VALID [2022-02-21 04:15:39,187 INFO L290 TraceCheckUtils]: 2: Hoare triple {1936#true} test_~tmp~4#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; {1936#true} is VALID [2022-02-21 04:15:39,187 INFO L290 TraceCheckUtils]: 3: Hoare triple {1936#true} assume !(0 != test_~tmp~4#1); {1936#true} is VALID [2022-02-21 04:15:39,187 INFO L290 TraceCheckUtils]: 4: Hoare triple {1936#true} test_~tmp___0~2#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; {1936#true} is VALID [2022-02-21 04:15:39,187 INFO L290 TraceCheckUtils]: 5: Hoare triple {1936#true} assume !(0 != test_~tmp___0~2#1); {1936#true} is VALID [2022-02-21 04:15:39,187 INFO L290 TraceCheckUtils]: 6: Hoare triple {1936#true} test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; {1936#true} is VALID [2022-02-21 04:15:39,188 INFO L290 TraceCheckUtils]: 7: Hoare triple {1936#true} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; {1936#true} is VALID [2022-02-21 04:15:39,188 INFO L290 TraceCheckUtils]: 8: Hoare triple {1936#true} assume !(0 != test_~tmp___1~0#1); {1936#true} is VALID [2022-02-21 04:15:39,188 INFO L290 TraceCheckUtils]: 9: Hoare triple {1936#true} assume { :begin_inline_timeShift } true; {1936#true} is VALID [2022-02-21 04:15:39,188 INFO L290 TraceCheckUtils]: 10: Hoare triple {1936#true} assume !(0 != ~pumpRunning~0); {1938#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:39,189 INFO L290 TraceCheckUtils]: 11: Hoare triple {1938#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; {1938#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:39,189 INFO L290 TraceCheckUtils]: 12: Hoare triple {1938#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; {1938#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:39,190 INFO L290 TraceCheckUtils]: 13: Hoare triple {1938#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1937#false} is VALID [2022-02-21 04:15:39,190 INFO L290 TraceCheckUtils]: 14: Hoare triple {1937#false} assume { :end_inline_processEnvironment__wrappee__base } true; {1937#false} is VALID [2022-02-21 04:15:39,190 INFO L290 TraceCheckUtils]: 15: Hoare triple {1937#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {1937#false} is VALID [2022-02-21 04:15:39,190 INFO L290 TraceCheckUtils]: 16: Hoare triple {1937#false} assume { :end_inline_processEnvironment } true; {1937#false} is VALID [2022-02-21 04:15:39,190 INFO L290 TraceCheckUtils]: 17: Hoare triple {1937#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret27#1, __utac_acc__Specification1_spec__1_#t~ret28#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; {1937#false} is VALID [2022-02-21 04:15:39,190 INFO L290 TraceCheckUtils]: 18: Hoare triple {1937#false} __utac_acc__Specification1_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret27#1;havoc __utac_acc__Specification1_spec__1_#t~ret27#1; {1937#false} is VALID [2022-02-21 04:15:39,191 INFO L290 TraceCheckUtils]: 19: Hoare triple {1937#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1); {1937#false} is VALID [2022-02-21 04:15:39,191 INFO L290 TraceCheckUtils]: 20: Hoare triple {1937#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {1937#false} is VALID [2022-02-21 04:15:39,191 INFO L290 TraceCheckUtils]: 21: Hoare triple {1937#false} assume { :end_inline_timeShift } true; {1937#false} is VALID [2022-02-21 04:15:39,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:15:39,191 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:39,192 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108220900] [2022-02-21 04:15:39,192 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108220900] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:39,192 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:39,192 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:15:39,192 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467992573] [2022-02-21 04:15:39,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:39,193 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:39,193 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:39,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:15:39,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:15:39,194 INFO L87 Difference]: Start difference. First operand 206 states and 275 transitions. cyclomatic complexity: 72 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:39,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:39,389 INFO L93 Difference]: Finished difference Result 257 states and 327 transitions. [2022-02-21 04:15:39,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:15:39,390 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:39,404 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:39,405 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 257 states and 327 transitions. [2022-02-21 04:15:39,410 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 185 [2022-02-21 04:15:39,415 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 257 states to 257 states and 327 transitions. [2022-02-21 04:15:39,416 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 257 [2022-02-21 04:15:39,416 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 257 [2022-02-21 04:15:39,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 257 states and 327 transitions. [2022-02-21 04:15:39,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:39,416 INFO L681 BuchiCegarLoop]: Abstraction has 257 states and 327 transitions. [2022-02-21 04:15:39,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states and 327 transitions. [2022-02-21 04:15:39,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2022-02-21 04:15:39,422 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:39,423 INFO L82 GeneralOperation]: Start isEquivalent. First operand 257 states and 327 transitions. Second operand has 257 states, 257 states have (on average 1.272373540856031) internal successors, (327), 256 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:39,423 INFO L74 IsIncluded]: Start isIncluded. First operand 257 states and 327 transitions. Second operand has 257 states, 257 states have (on average 1.272373540856031) internal successors, (327), 256 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:39,424 INFO L87 Difference]: Start difference. First operand 257 states and 327 transitions. Second operand has 257 states, 257 states have (on average 1.272373540856031) internal successors, (327), 256 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:39,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:39,428 INFO L93 Difference]: Finished difference Result 257 states and 327 transitions. [2022-02-21 04:15:39,428 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 327 transitions. [2022-02-21 04:15:39,429 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:39,429 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:39,430 INFO L74 IsIncluded]: Start isIncluded. First operand has 257 states, 257 states have (on average 1.272373540856031) internal successors, (327), 256 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 257 states and 327 transitions. [2022-02-21 04:15:39,430 INFO L87 Difference]: Start difference. First operand has 257 states, 257 states have (on average 1.272373540856031) internal successors, (327), 256 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 257 states and 327 transitions. [2022-02-21 04:15:39,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:39,435 INFO L93 Difference]: Finished difference Result 257 states and 327 transitions. [2022-02-21 04:15:39,435 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 327 transitions. [2022-02-21 04:15:39,435 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:39,436 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:39,436 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:39,436 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:39,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 257 states have (on average 1.272373540856031) internal successors, (327), 256 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:39,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 327 transitions. [2022-02-21 04:15:39,441 INFO L704 BuchiCegarLoop]: Abstraction has 257 states and 327 transitions. [2022-02-21 04:15:39,441 INFO L587 BuchiCegarLoop]: Abstraction has 257 states and 327 transitions. [2022-02-21 04:15:39,441 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:15:39,441 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 257 states and 327 transitions. [2022-02-21 04:15:39,442 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 185 [2022-02-21 04:15:39,443 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:39,443 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:39,443 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:39,443 INFO L843 BuchiCegarLoop]: Counterexample loop 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] [2022-02-21 04:15:39,444 INFO L791 eck$LassoCheckResult]: Stem: 2360#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 2276#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 2209#L981 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2210#L974 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 2264#L989 main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 2265#L553 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 2323#L527 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2346#L409-2 [2022-02-21 04:15:39,444 INFO L793 eck$LassoCheckResult]: Loop: 2346#L409-2 assume !false; 2347#L410 assume test_~splverifierCounter~0#1 < 4; 2348#L411 test_~tmp~4#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 2451#L419 assume !(0 != test_~tmp~4#1); 2449#L419-2 test_~tmp___0~2#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 2332#L429 assume !(0 != test_~tmp___0~2#1); 2229#L429-2 test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 2292#L439 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2232#L385 assume { :end_inline_startSystem } true; 2233#L447-2 assume { :begin_inline_timeShift } true; 2283#L176 assume !(0 != ~pumpRunning~0); 2284#L176-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 2316#L234 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 2317#L208-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 2356#L141-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 2242#L146-1 isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; 2213#L336-3 assume !(0 != isHighWaterLevel_~tmp~2#1);isHighWaterLevel_~tmp___0~0#1 := 1; 2214#L336-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 2211#L342-1 processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1; 2212#L212-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2336#L200-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2337#L208-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2295#L234-1 assume { :end_inline_processEnvironment } true; 2342#L183-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret27#1, __utac_acc__Specification1_spec__1_#t~ret28#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 2343#L101 __utac_acc__Specification1_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret27#1;havoc __utac_acc__Specification1_spec__1_#t~ret27#1; 2361#L575 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1); 2423#L575-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 2422#L193 assume { :end_inline_timeShift } true; 2346#L409-2 [2022-02-21 04:15:39,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:39,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:15:39,445 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:39,445 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111401389] [2022-02-21 04:15:39,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:39,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:39,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:39,453 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:39,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:39,463 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:39,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:39,466 INFO L85 PathProgramCache]: Analyzing trace with hash -489047863, now seen corresponding path program 1 times [2022-02-21 04:15:39,466 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:39,467 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535799590] [2022-02-21 04:15:39,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:39,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:39,498 INFO L290 TraceCheckUtils]: 0: Hoare triple {2972#true} assume !false; {2972#true} is VALID [2022-02-21 04:15:39,498 INFO L290 TraceCheckUtils]: 1: Hoare triple {2972#true} assume test_~splverifierCounter~0#1 < 4; {2972#true} is VALID [2022-02-21 04:15:39,498 INFO L290 TraceCheckUtils]: 2: Hoare triple {2972#true} test_~tmp~4#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; {2972#true} is VALID [2022-02-21 04:15:39,500 INFO L290 TraceCheckUtils]: 3: Hoare triple {2972#true} assume !(0 != test_~tmp~4#1); {2972#true} is VALID [2022-02-21 04:15:39,501 INFO L290 TraceCheckUtils]: 4: Hoare triple {2972#true} test_~tmp___0~2#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; {2972#true} is VALID [2022-02-21 04:15:39,501 INFO L290 TraceCheckUtils]: 5: Hoare triple {2972#true} assume !(0 != test_~tmp___0~2#1); {2972#true} is VALID [2022-02-21 04:15:39,502 INFO L290 TraceCheckUtils]: 6: Hoare triple {2972#true} test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; {2972#true} is VALID [2022-02-21 04:15:39,502 INFO L290 TraceCheckUtils]: 7: Hoare triple {2972#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {2972#true} is VALID [2022-02-21 04:15:39,503 INFO L290 TraceCheckUtils]: 8: Hoare triple {2972#true} assume { :end_inline_startSystem } true; {2972#true} is VALID [2022-02-21 04:15:39,503 INFO L290 TraceCheckUtils]: 9: Hoare triple {2972#true} assume { :begin_inline_timeShift } true; {2972#true} is VALID [2022-02-21 04:15:39,503 INFO L290 TraceCheckUtils]: 10: Hoare triple {2972#true} assume !(0 != ~pumpRunning~0); {2972#true} is VALID [2022-02-21 04:15:39,503 INFO L290 TraceCheckUtils]: 11: Hoare triple {2972#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; {2972#true} is VALID [2022-02-21 04:15:39,503 INFO L290 TraceCheckUtils]: 12: Hoare triple {2972#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; {2972#true} is VALID [2022-02-21 04:15:39,504 INFO L290 TraceCheckUtils]: 13: Hoare triple {2972#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; {2972#true} is VALID [2022-02-21 04:15:39,504 INFO L290 TraceCheckUtils]: 14: Hoare triple {2972#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; {2974#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 1)} is VALID [2022-02-21 04:15:39,505 INFO L290 TraceCheckUtils]: 15: Hoare triple {2974#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 1)} isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; {2975#(= |ULTIMATE.start_isHighWaterLevel_~tmp~2#1| 1)} is VALID [2022-02-21 04:15:39,505 INFO L290 TraceCheckUtils]: 16: Hoare triple {2975#(= |ULTIMATE.start_isHighWaterLevel_~tmp~2#1| 1)} assume !(0 != isHighWaterLevel_~tmp~2#1);isHighWaterLevel_~tmp___0~0#1 := 1; {2973#false} is VALID [2022-02-21 04:15:39,505 INFO L290 TraceCheckUtils]: 17: Hoare triple {2973#false} isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; {2973#false} is VALID [2022-02-21 04:15:39,506 INFO L290 TraceCheckUtils]: 18: Hoare triple {2973#false} processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1; {2973#false} is VALID [2022-02-21 04:15:39,506 INFO L290 TraceCheckUtils]: 19: Hoare triple {2973#false} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {2973#false} is VALID [2022-02-21 04:15:39,506 INFO L290 TraceCheckUtils]: 20: Hoare triple {2973#false} assume { :end_inline_processEnvironment__wrappee__base } true; {2973#false} is VALID [2022-02-21 04:15:39,506 INFO L290 TraceCheckUtils]: 21: Hoare triple {2973#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {2973#false} is VALID [2022-02-21 04:15:39,506 INFO L290 TraceCheckUtils]: 22: Hoare triple {2973#false} assume { :end_inline_processEnvironment } true; {2973#false} is VALID [2022-02-21 04:15:39,506 INFO L290 TraceCheckUtils]: 23: Hoare triple {2973#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret27#1, __utac_acc__Specification1_spec__1_#t~ret28#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; {2973#false} is VALID [2022-02-21 04:15:39,507 INFO L290 TraceCheckUtils]: 24: Hoare triple {2973#false} __utac_acc__Specification1_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret27#1;havoc __utac_acc__Specification1_spec__1_#t~ret27#1; {2973#false} is VALID [2022-02-21 04:15:39,507 INFO L290 TraceCheckUtils]: 25: Hoare triple {2973#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1); {2973#false} is VALID [2022-02-21 04:15:39,507 INFO L290 TraceCheckUtils]: 26: Hoare triple {2973#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {2973#false} is VALID [2022-02-21 04:15:39,507 INFO L290 TraceCheckUtils]: 27: Hoare triple {2973#false} assume { :end_inline_timeShift } true; {2973#false} is VALID [2022-02-21 04:15:39,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:15:39,508 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:39,508 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535799590] [2022-02-21 04:15:39,508 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535799590] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:39,508 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:39,508 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:15:39,509 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769536895] [2022-02-21 04:15:39,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:39,509 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:39,509 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:39,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-21 04:15:39,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-21 04:15:39,510 INFO L87 Difference]: Start difference. First operand 257 states and 327 transitions. cyclomatic complexity: 73 Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:39,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:39,872 INFO L93 Difference]: Finished difference Result 501 states and 629 transitions. [2022-02-21 04:15:39,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-21 04:15:39,872 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:39,898 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:39,898 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 501 states and 629 transitions. [2022-02-21 04:15:39,910 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 366 [2022-02-21 04:15:39,920 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 501 states to 501 states and 629 transitions. [2022-02-21 04:15:39,920 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 501 [2022-02-21 04:15:39,920 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 501 [2022-02-21 04:15:39,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 501 states and 629 transitions. [2022-02-21 04:15:39,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:39,921 INFO L681 BuchiCegarLoop]: Abstraction has 501 states and 629 transitions. [2022-02-21 04:15:39,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states and 629 transitions. [2022-02-21 04:15:39,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 269. [2022-02-21 04:15:39,926 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:39,926 INFO L82 GeneralOperation]: Start isEquivalent. First operand 501 states and 629 transitions. Second operand has 269 states, 269 states have (on average 1.2602230483271375) internal successors, (339), 268 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:39,927 INFO L74 IsIncluded]: Start isIncluded. First operand 501 states and 629 transitions. Second operand has 269 states, 269 states have (on average 1.2602230483271375) internal successors, (339), 268 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:39,927 INFO L87 Difference]: Start difference. First operand 501 states and 629 transitions. Second operand has 269 states, 269 states have (on average 1.2602230483271375) internal successors, (339), 268 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:39,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:39,937 INFO L93 Difference]: Finished difference Result 501 states and 629 transitions. [2022-02-21 04:15:39,937 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 629 transitions. [2022-02-21 04:15:39,937 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:39,937 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:39,938 INFO L74 IsIncluded]: Start isIncluded. First operand has 269 states, 269 states have (on average 1.2602230483271375) internal successors, (339), 268 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 501 states and 629 transitions. [2022-02-21 04:15:39,939 INFO L87 Difference]: Start difference. First operand has 269 states, 269 states have (on average 1.2602230483271375) internal successors, (339), 268 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 501 states and 629 transitions. [2022-02-21 04:15:39,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:39,953 INFO L93 Difference]: Finished difference Result 501 states and 629 transitions. [2022-02-21 04:15:39,953 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 629 transitions. [2022-02-21 04:15:39,954 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:39,954 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:39,954 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:39,954 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:39,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 269 states have (on average 1.2602230483271375) internal successors, (339), 268 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:39,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 339 transitions. [2022-02-21 04:15:39,958 INFO L704 BuchiCegarLoop]: Abstraction has 269 states and 339 transitions. [2022-02-21 04:15:39,958 INFO L587 BuchiCegarLoop]: Abstraction has 269 states and 339 transitions. [2022-02-21 04:15:39,958 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:15:39,958 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 269 states and 339 transitions. [2022-02-21 04:15:39,959 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 193 [2022-02-21 04:15:39,959 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:39,959 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:39,961 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:39,961 INFO L843 BuchiCegarLoop]: Counterexample loop 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] [2022-02-21 04:15:39,961 INFO L791 eck$LassoCheckResult]: Stem: 3656#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 3561#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 3493#L981 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3494#L974 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 3549#L989 main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 3550#L553 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 3617#L527 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3593#L409-2 [2022-02-21 04:15:39,961 INFO L793 eck$LassoCheckResult]: Loop: 3593#L409-2 assume !false; 3731#L410 assume test_~splverifierCounter~0#1 < 4; 3730#L411 test_~tmp~4#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 3728#L419 assume !(0 != test_~tmp~4#1); 3726#L419-2 test_~tmp___0~2#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 3724#L429 assume !(0 != test_~tmp___0~2#1); 3722#L429-2 test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 3594#L439 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 3538#L447 assume !(0 != test_~tmp___1~0#1); 3517#L447-2 assume { :begin_inline_timeShift } true; 3568#L176 assume !(0 != ~pumpRunning~0); 3569#L176-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 3609#L234 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 3610#L208-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 3649#L141-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 3526#L146-1 isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; 3527#L336-3 assume !(0 != isHighWaterLevel_~tmp~2#1);isHighWaterLevel_~tmp___0~0#1 := 1; 3498#L336-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 3495#L342-1 processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1; 3496#L212-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3629#L200-2 assume { :end_inline_processEnvironment__wrappee__base } true; 3630#L208-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3581#L234-1 assume { :end_inline_processEnvironment } true; 3637#L183-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret27#1, __utac_acc__Specification1_spec__1_#t~ret28#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 3638#L101 __utac_acc__Specification1_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret27#1;havoc __utac_acc__Specification1_spec__1_#t~ret27#1; 3733#L575 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1); 3732#L575-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 3592#L193 assume { :end_inline_timeShift } true; 3593#L409-2 [2022-02-21 04:15:39,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:39,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-02-21 04:15:39,962 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:39,962 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907641867] [2022-02-21 04:15:39,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:39,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:39,976 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:39,989 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:39,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:39,989 INFO L85 PathProgramCache]: Analyzing trace with hash 576337081, now seen corresponding path program 1 times [2022-02-21 04:15:39,989 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:39,990 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723963584] [2022-02-21 04:15:39,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:39,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:40,028 INFO L290 TraceCheckUtils]: 0: Hoare triple {4756#true} assume !false; {4756#true} is VALID [2022-02-21 04:15:40,029 INFO L290 TraceCheckUtils]: 1: Hoare triple {4756#true} assume test_~splverifierCounter~0#1 < 4; {4756#true} is VALID [2022-02-21 04:15:40,029 INFO L290 TraceCheckUtils]: 2: Hoare triple {4756#true} test_~tmp~4#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; {4756#true} is VALID [2022-02-21 04:15:40,029 INFO L290 TraceCheckUtils]: 3: Hoare triple {4756#true} assume !(0 != test_~tmp~4#1); {4756#true} is VALID [2022-02-21 04:15:40,029 INFO L290 TraceCheckUtils]: 4: Hoare triple {4756#true} test_~tmp___0~2#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; {4756#true} is VALID [2022-02-21 04:15:40,030 INFO L290 TraceCheckUtils]: 5: Hoare triple {4756#true} assume !(0 != test_~tmp___0~2#1); {4756#true} is VALID [2022-02-21 04:15:40,030 INFO L290 TraceCheckUtils]: 6: Hoare triple {4756#true} test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; {4756#true} is VALID [2022-02-21 04:15:40,030 INFO L290 TraceCheckUtils]: 7: Hoare triple {4756#true} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; {4756#true} is VALID [2022-02-21 04:15:40,030 INFO L290 TraceCheckUtils]: 8: Hoare triple {4756#true} assume !(0 != test_~tmp___1~0#1); {4756#true} is VALID [2022-02-21 04:15:40,032 INFO L290 TraceCheckUtils]: 9: Hoare triple {4756#true} assume { :begin_inline_timeShift } true; {4756#true} is VALID [2022-02-21 04:15:40,032 INFO L290 TraceCheckUtils]: 10: Hoare triple {4756#true} assume !(0 != ~pumpRunning~0); {4756#true} is VALID [2022-02-21 04:15:40,032 INFO L290 TraceCheckUtils]: 11: Hoare triple {4756#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; {4756#true} is VALID [2022-02-21 04:15:40,032 INFO L290 TraceCheckUtils]: 12: Hoare triple {4756#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; {4756#true} is VALID [2022-02-21 04:15:40,033 INFO L290 TraceCheckUtils]: 13: Hoare triple {4756#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; {4756#true} is VALID [2022-02-21 04:15:40,033 INFO L290 TraceCheckUtils]: 14: Hoare triple {4756#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; {4756#true} is VALID [2022-02-21 04:15:40,033 INFO L290 TraceCheckUtils]: 15: Hoare triple {4756#true} isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; {4756#true} is VALID [2022-02-21 04:15:40,033 INFO L290 TraceCheckUtils]: 16: Hoare triple {4756#true} assume !(0 != isHighWaterLevel_~tmp~2#1);isHighWaterLevel_~tmp___0~0#1 := 1; {4758#(<= 1 |ULTIMATE.start_isHighWaterLevel_~tmp___0~0#1|)} is VALID [2022-02-21 04:15:40,034 INFO L290 TraceCheckUtils]: 17: Hoare triple {4758#(<= 1 |ULTIMATE.start_isHighWaterLevel_~tmp___0~0#1|)} isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; {4759#(<= 1 |ULTIMATE.start_isHighWaterLevel_#res#1|)} is VALID [2022-02-21 04:15:40,034 INFO L290 TraceCheckUtils]: 18: Hoare triple {4759#(<= 1 |ULTIMATE.start_isHighWaterLevel_#res#1|)} processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1; {4760#(<= 1 |ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~0#1|)} is VALID [2022-02-21 04:15:40,035 INFO L290 TraceCheckUtils]: 19: Hoare triple {4760#(<= 1 |ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~0#1|)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {4757#false} is VALID [2022-02-21 04:15:40,035 INFO L290 TraceCheckUtils]: 20: Hoare triple {4757#false} assume { :end_inline_processEnvironment__wrappee__base } true; {4757#false} is VALID [2022-02-21 04:15:40,035 INFO L290 TraceCheckUtils]: 21: Hoare triple {4757#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {4757#false} is VALID [2022-02-21 04:15:40,035 INFO L290 TraceCheckUtils]: 22: Hoare triple {4757#false} assume { :end_inline_processEnvironment } true; {4757#false} is VALID [2022-02-21 04:15:40,035 INFO L290 TraceCheckUtils]: 23: Hoare triple {4757#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret27#1, __utac_acc__Specification1_spec__1_#t~ret28#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; {4757#false} is VALID [2022-02-21 04:15:40,035 INFO L290 TraceCheckUtils]: 24: Hoare triple {4757#false} __utac_acc__Specification1_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret27#1;havoc __utac_acc__Specification1_spec__1_#t~ret27#1; {4757#false} is VALID [2022-02-21 04:15:40,035 INFO L290 TraceCheckUtils]: 25: Hoare triple {4757#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1); {4757#false} is VALID [2022-02-21 04:15:40,036 INFO L290 TraceCheckUtils]: 26: Hoare triple {4757#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {4757#false} is VALID [2022-02-21 04:15:40,036 INFO L290 TraceCheckUtils]: 27: Hoare triple {4757#false} assume { :end_inline_timeShift } true; {4757#false} is VALID [2022-02-21 04:15:40,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:15:40,036 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:40,037 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723963584] [2022-02-21 04:15:40,037 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723963584] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:40,038 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:40,038 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:15:40,038 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257418177] [2022-02-21 04:15:40,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:40,038 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:40,038 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:40,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:15:40,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:15:40,039 INFO L87 Difference]: Start difference. First operand 269 states and 339 transitions. cyclomatic complexity: 73 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:40,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:40,603 INFO L93 Difference]: Finished difference Result 673 states and 844 transitions. [2022-02-21 04:15:40,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:15:40,603 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:40,618 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:40,618 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 673 states and 844 transitions. [2022-02-21 04:15:40,632 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 499 [2022-02-21 04:15:40,646 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 673 states to 673 states and 844 transitions. [2022-02-21 04:15:40,646 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 673 [2022-02-21 04:15:40,646 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 673 [2022-02-21 04:15:40,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 673 states and 844 transitions. [2022-02-21 04:15:40,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:40,647 INFO L681 BuchiCegarLoop]: Abstraction has 673 states and 844 transitions. [2022-02-21 04:15:40,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states and 844 transitions. [2022-02-21 04:15:40,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 287. [2022-02-21 04:15:40,651 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:40,652 INFO L82 GeneralOperation]: Start isEquivalent. First operand 673 states and 844 transitions. Second operand has 287 states, 287 states have (on average 1.2439024390243902) internal successors, (357), 286 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:40,652 INFO L74 IsIncluded]: Start isIncluded. First operand 673 states and 844 transitions. Second operand has 287 states, 287 states have (on average 1.2439024390243902) internal successors, (357), 286 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:40,653 INFO L87 Difference]: Start difference. First operand 673 states and 844 transitions. Second operand has 287 states, 287 states have (on average 1.2439024390243902) internal successors, (357), 286 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:40,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:40,665 INFO L93 Difference]: Finished difference Result 673 states and 844 transitions. [2022-02-21 04:15:40,665 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 844 transitions. [2022-02-21 04:15:40,666 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:40,666 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:40,667 INFO L74 IsIncluded]: Start isIncluded. First operand has 287 states, 287 states have (on average 1.2439024390243902) internal successors, (357), 286 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 673 states and 844 transitions. [2022-02-21 04:15:40,667 INFO L87 Difference]: Start difference. First operand has 287 states, 287 states have (on average 1.2439024390243902) internal successors, (357), 286 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 673 states and 844 transitions. [2022-02-21 04:15:40,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:40,680 INFO L93 Difference]: Finished difference Result 673 states and 844 transitions. [2022-02-21 04:15:40,680 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 844 transitions. [2022-02-21 04:15:40,681 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:40,681 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:40,681 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:40,681 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:40,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 287 states have (on average 1.2439024390243902) internal successors, (357), 286 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:40,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 357 transitions. [2022-02-21 04:15:40,686 INFO L704 BuchiCegarLoop]: Abstraction has 287 states and 357 transitions. [2022-02-21 04:15:40,686 INFO L587 BuchiCegarLoop]: Abstraction has 287 states and 357 transitions. [2022-02-21 04:15:40,686 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2022-02-21 04:15:40,686 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 287 states and 357 transitions. [2022-02-21 04:15:40,687 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 205 [2022-02-21 04:15:40,687 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:40,687 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:40,687 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:40,687 INFO L843 BuchiCegarLoop]: Counterexample loop 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] [2022-02-21 04:15:40,688 INFO L791 eck$LassoCheckResult]: Stem: 5613#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 5521#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 5453#L981 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 5454#L974 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 5509#L989 main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 5510#L553 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 5572#L527 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 5480#L409-2 [2022-02-21 04:15:40,688 INFO L793 eck$LassoCheckResult]: Loop: 5480#L409-2 assume !false; 5481#L410 assume test_~splverifierCounter~0#1 < 4; 5552#L411 test_~tmp~4#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 5440#L419 assume !(0 != test_~tmp~4#1); 5442#L419-2 test_~tmp___0~2#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 5466#L429 assume !(0 != test_~tmp___0~2#1); 5473#L429-2 test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 5538#L439 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 5474#L385 assume { :end_inline_startSystem } true; 5475#L447-2 assume { :begin_inline_timeShift } true; 5528#L176 assume !(0 != ~pumpRunning~0); 5529#L176-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 5565#L234 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 5566#L208-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 5606#L141-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 5611#L146-1 isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; 5457#L336-3 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 5458#L336-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 5638#L342-1 processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1; 5630#L212-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 5588#L200-2 assume { :end_inline_processEnvironment__wrappee__base } true; 5584#L208-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 5541#L234-1 assume { :end_inline_processEnvironment } true; 5615#L183-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret27#1, __utac_acc__Specification1_spec__1_#t~ret28#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 5722#L101 __utac_acc__Specification1_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret27#1;havoc __utac_acc__Specification1_spec__1_#t~ret27#1; 5719#L575 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1); 5718#L575-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 5553#L193 assume { :end_inline_timeShift } true; 5480#L409-2 [2022-02-21 04:15:40,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:40,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2022-02-21 04:15:40,689 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:40,689 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987634495] [2022-02-21 04:15:40,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:40,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:40,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:40,695 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:40,700 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:40,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:40,700 INFO L85 PathProgramCache]: Analyzing trace with hash -747213301, now seen corresponding path program 1 times [2022-02-21 04:15:40,701 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:40,701 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161695808] [2022-02-21 04:15:40,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:40,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:40,704 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:40,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:40,708 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:40,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:40,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1998195249, now seen corresponding path program 1 times [2022-02-21 04:15:40,708 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:40,708 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984352027] [2022-02-21 04:15:40,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:40,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:40,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:40,716 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:40,725 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:43,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:15:43 BoogieIcfgContainer [2022-02-21 04:15:43,180 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:15:43,180 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:15:43,180 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:15:43,181 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:15:43,181 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:37" (3/4) ... [2022-02-21 04:15:43,183 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:15:43,222 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:15:43,222 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:15:43,225 INFO L158 Benchmark]: Toolchain (without parser) took 7047.71ms. Allocated memory was 100.7MB in the beginning and 188.7MB in the end (delta: 88.1MB). Free memory was 67.0MB in the beginning and 90.8MB in the end (delta: -23.8MB). Peak memory consumption was 62.8MB. Max. memory is 16.1GB. [2022-02-21 04:15:43,225 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 100.7MB. Free memory is still 55.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:15:43,226 INFO L158 Benchmark]: CACSL2BoogieTranslator took 387.30ms. Allocated memory is still 100.7MB. Free memory was 66.8MB in the beginning and 63.7MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:15:43,226 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.34ms. Allocated memory is still 100.7MB. Free memory was 63.7MB in the beginning and 59.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:43,226 INFO L158 Benchmark]: Boogie Preprocessor took 56.69ms. Allocated memory is still 100.7MB. Free memory was 59.5MB in the beginning and 57.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:43,226 INFO L158 Benchmark]: RCFGBuilder took 592.57ms. Allocated memory was 100.7MB in the beginning and 125.8MB in the end (delta: 25.2MB). Free memory was 57.1MB in the beginning and 85.5MB in the end (delta: -28.4MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2022-02-21 04:15:43,229 INFO L158 Benchmark]: BuchiAutomizer took 5911.19ms. Allocated memory was 125.8MB in the beginning and 188.7MB in the end (delta: 62.9MB). Free memory was 84.9MB in the beginning and 92.9MB in the end (delta: -8.0MB). Peak memory consumption was 95.5MB. Max. memory is 16.1GB. [2022-02-21 04:15:43,229 INFO L158 Benchmark]: Witness Printer took 43.54ms. Allocated memory is still 188.7MB. Free memory was 92.9MB in the beginning and 90.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:43,230 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 100.7MB. Free memory is still 55.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 387.30ms. Allocated memory is still 100.7MB. Free memory was 66.8MB in the beginning and 63.7MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.34ms. Allocated memory is still 100.7MB. Free memory was 63.7MB in the beginning and 59.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.69ms. Allocated memory is still 100.7MB. Free memory was 59.5MB in the beginning and 57.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 592.57ms. Allocated memory was 100.7MB in the beginning and 125.8MB in the end (delta: 25.2MB). Free memory was 57.1MB in the beginning and 85.5MB in the end (delta: -28.4MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 5911.19ms. Allocated memory was 125.8MB in the beginning and 188.7MB in the end (delta: 62.9MB). Free memory was 84.9MB in the beginning and 92.9MB in the end (delta: -8.0MB). Peak memory consumption was 95.5MB. Max. memory is 16.1GB. * Witness Printer took 43.54ms. Allocated memory is still 188.7MB. Free memory was 92.9MB in the beginning and 90.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 287 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.8s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.1s. Büchi inclusion checks took 2.1s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 912 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 287 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2117 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2117 mSDsluCounter, 3415 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2412 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 243 IncrementalHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 1003 mSDtfsCounter, 243 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 409]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67d5389d=0, tmp___0=0, NULL=0, head=0, pumpRunning=0, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73414454=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e84a22f=0, retValue_acc=1, retValue_acc=1, methaneLevelCritical=0, tmp=1, \result=0, retValue_acc=0, \result=1, retValue_acc=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37cc4664=0, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f1ecad1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2381940=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e31acb1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43056186=0, cleanupTimeShifts=4, tmp=1, \result=0, tmp=0, head=0, tmp___1=0, NULL=0, retValue_acc=0, waterLevel=1, systemActive=1, tmp=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5563f39d=29, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49f019e7=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 409]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L58] int waterLevel = 1; [L59] int methaneLevelCritical = 0; [L168] int pumpRunning = 0; [L169] int systemActive = 1; [L468] int cleanupTimeShifts = 4; [L762] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L544] int retValue_acc ; [L545] int tmp ; [L549] FCALL select_helpers() [L550] FCALL select_features() [L551] CALL, EXPR valid_product() [L985] int retValue_acc ; [L988] retValue_acc = 1 [L989] return (retValue_acc); [L551] RET, EXPR valid_product() [L551] tmp = valid_product() [L553] COND TRUE \read(tmp) [L555] FCALL setup() [L556] CALL runTest() [L535] CALL test() [L400] int splverifierCounter ; [L401] int tmp ; [L402] int tmp___0 ; [L403] int tmp___1 ; [L404] int tmp___2 ; [L407] splverifierCounter = 0 Loop: [L409] COND TRUE 1 [L411] COND TRUE splverifierCounter < 4 [L417] tmp = __VERIFIER_nondet_int() [L419] COND FALSE !(\read(tmp)) [L427] tmp___0 = __VERIFIER_nondet_int() [L429] COND FALSE !(\read(tmp___0)) [L437] tmp___2 = __VERIFIER_nondet_int() [L439] COND TRUE \read(tmp___2) [L441] CALL startSystem() [L384] systemActive = 1 [L441] RET startSystem() [L456] CALL timeShift() [L176] COND FALSE !(\read(pumpRunning)) [L183] COND TRUE \read(systemActive) [L185] CALL processEnvironment() [L231] int tmp ; [L234] COND FALSE !(\read(pumpRunning)) [L249] CALL processEnvironment__wrappee__highWaterSensor() [L205] int tmp ; [L208] COND TRUE ! pumpRunning [L210] CALL, EXPR isHighWaterLevel() [L328] int retValue_acc ; [L329] int tmp ; [L330] int tmp___0 ; [L334] CALL, EXPR isHighWaterSensorDry() [L138] int retValue_acc ; [L141] COND TRUE waterLevel < 2 [L142] retValue_acc = 1 [L143] return (retValue_acc); [L334] RET, EXPR isHighWaterSensorDry() [L334] tmp = isHighWaterSensorDry() [L336] COND TRUE \read(tmp) [L337] tmp___0 = 0 [L341] retValue_acc = tmp___0 [L342] return (retValue_acc); [L210] RET, EXPR isHighWaterLevel() [L210] tmp = isHighWaterLevel() [L212] COND FALSE !(\read(tmp)) [L218] FCALL processEnvironment__wrappee__base() [L249] RET processEnvironment__wrappee__highWaterSensor() [L185] RET processEnvironment() [L191] CALL __utac_acc__Specification1_spec__1() [L568] int tmp ; [L569] int tmp___0 ; [L573] CALL, EXPR isMethaneLevelCritical() [L97] int retValue_acc ; [L100] retValue_acc = methaneLevelCritical [L101] return (retValue_acc); [L573] RET, EXPR isMethaneLevelCritical() [L573] tmp = isMethaneLevelCritical() [L575] COND FALSE !(\read(tmp)) [L191] RET __utac_acc__Specification1_spec__1() [L456] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:15:43,263 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)