./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product61.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_spec3_product61.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 53b1b58c0a8af862b137647fd316df606e2053e614741221b62b3a107765e608 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:17:22,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:17:22,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:17:22,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:17:22,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:17:22,833 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:17:22,834 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:17:22,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:17:22,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:17:22,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:17:22,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:17:22,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:17:22,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:17:22,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:17:22,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:17:22,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:17:22,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:17:22,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:17:22,866 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:17:22,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:17:22,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:17:22,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:17:22,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:17:22,878 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:17:22,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:17:22,887 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:17:22,887 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:17:22,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:17:22,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:17:22,890 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:17:22,891 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:17:22,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:17:22,893 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:17:22,894 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:17:22,895 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:17:22,895 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:17:22,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:17:22,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:17:22,896 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:17:22,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:17:22,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:17:22,898 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:17:22,958 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:17:22,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:17:22,959 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:17:22,959 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:17:22,961 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:17:22,961 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:17:22,962 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:17:22,962 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:17:22,962 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:17:22,962 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:17:22,963 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:17:22,963 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:17:22,963 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:17:22,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:17:22,964 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:17:22,964 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:17:22,964 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:17:22,964 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:17:22,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:17:22,965 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:17:22,965 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:17:22,965 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:17:22,965 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:17:22,966 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:17:22,966 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:17:22,966 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:17:22,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:17:22,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:17:22,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:17:22,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:17:22,967 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:17:22,968 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:17:22,968 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53b1b58c0a8af862b137647fd316df606e2053e614741221b62b3a107765e608 [2022-02-21 04:17:23,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:17:23,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:17:23,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:17:23,215 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:17:23,215 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:17:23,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product61.cil.c [2022-02-21 04:17:23,262 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3ad51134/dd526dde771346489476796dccfecbbd/FLAGee6570510 [2022-02-21 04:17:23,675 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:17:23,676 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product61.cil.c [2022-02-21 04:17:23,685 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3ad51134/dd526dde771346489476796dccfecbbd/FLAGee6570510 [2022-02-21 04:17:23,694 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3ad51134/dd526dde771346489476796dccfecbbd [2022-02-21 04:17:23,696 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:17:23,698 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:17:23,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:23,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:17:23,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:17:23,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:23" (1/1) ... [2022-02-21 04:17:23,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10584780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:23, skipping insertion in model container [2022-02-21 04:17:23,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:23" (1/1) ... [2022-02-21 04:17:23,709 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:17:23,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:17:23,932 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_spec3_product61.cil.c[7381,7394] [2022-02-21 04:17:24,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:24,007 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:17:24,052 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_spec3_product61.cil.c[7381,7394] [2022-02-21 04:17:24,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:24,122 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:17:24,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:24 WrapperNode [2022-02-21 04:17:24,123 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:24,124 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:24,124 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:17:24,124 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:17:24,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:24" (1/1) ... [2022-02-21 04:17:24,151 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:24" (1/1) ... [2022-02-21 04:17:24,192 INFO L137 Inliner]: procedures = 57, calls = 161, calls flagged for inlining = 58, calls inlined = 176, statements flattened = 1286 [2022-02-21 04:17:24,193 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:24,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:17:24,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:17:24,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:17:24,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:24" (1/1) ... [2022-02-21 04:17:24,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:24" (1/1) ... [2022-02-21 04:17:24,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:24" (1/1) ... [2022-02-21 04:17:24,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:24" (1/1) ... [2022-02-21 04:17:24,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:24" (1/1) ... [2022-02-21 04:17:24,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:24" (1/1) ... [2022-02-21 04:17:24,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:24" (1/1) ... [2022-02-21 04:17:24,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:17:24,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:17:24,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:17:24,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:17:24,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:24" (1/1) ... [2022-02-21 04:17:24,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:17:24,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:17:24,316 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 04:17:24,334 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 04:17:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:17:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:17:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:17:24,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:17:24,423 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:17:24,425 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:17:25,198 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:17:25,206 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:17:25,207 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:17:25,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:25 BoogieIcfgContainer [2022-02-21 04:17:25,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:17:25,210 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:17:25,210 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:17:25,212 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:17:25,213 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:25,213 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:17:23" (1/3) ... [2022-02-21 04:17:25,214 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46332784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:25, skipping insertion in model container [2022-02-21 04:17:25,214 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:25,215 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:24" (2/3) ... [2022-02-21 04:17:25,215 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46332784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:25, skipping insertion in model container [2022-02-21 04:17:25,215 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:25,215 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:25" (3/3) ... [2022-02-21 04:17:25,216 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product61.cil.c [2022-02-21 04:17:25,250 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:17:25,250 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:17:25,250 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:17:25,250 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:17:25,251 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:17:25,251 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:17:25,251 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:17:25,251 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:17:25,278 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 324 states, 323 states have (on average 1.3560371517027863) internal successors, (438), 323 states have internal predecessors, (438), 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 04:17:25,334 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 212 [2022-02-21 04:17:25,334 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:25,334 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:25,340 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:25,340 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:25,340 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:17:25,342 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 324 states, 323 states have (on average 1.3560371517027863) internal successors, (438), 323 states have internal predecessors, (438), 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 04:17:25,362 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 212 [2022-02-21 04:17:25,362 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:25,363 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:25,363 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:25,363 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:25,368 INFO L791 eck$LassoCheckResult]: Stem: 306#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 221#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret28#1, main_~retValue_acc~8#1, main_~tmp~7#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 129#L637true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 92#L630true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 177#L645true main_#t~ret28#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret28#1;havoc main_#t~ret28#1; 44#L567true assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 89#L541true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 178#L64-2true [2022-02-21 04:17:25,368 INFO L793 eck$LassoCheckResult]: Loop: 178#L64-2true assume !false; 326#L65true assume test_~splverifierCounter~0#1 < 4; 35#L66true test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 249#L74true assume !(0 != test_~tmp~0#1); 136#L74-2true test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 146#L84true assume !(0 != test_~tmp___0~0#1); 25#L84-2true test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 147#L94true assume 0 != test_~tmp___2~0#1; 125#L100-2true assume { :begin_inline_timeShift } true; 13#L136true assume !(0 != ~pumpRunning~0); 30#L136-2true assume !(0 != ~systemActive~0); 270#L143-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 69#L413-5true __utac_acc__Specification3_spec__1_#t~ret29#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret29#1;havoc __utac_acc__Specification3_spec__1_#t~ret29#1; 45#L590true assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 274#L596-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 7#L153true assume { :end_inline_timeShift } true; 178#L64-2true [2022-02-21 04:17:25,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:25,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:17:25,380 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:25,381 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133667913] [2022-02-21 04:17:25,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:25,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:25,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:25,461 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:25,500 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:25,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:25,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1828245462, now seen corresponding path program 1 times [2022-02-21 04:17:25,502 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:25,503 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534005756] [2022-02-21 04:17:25,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:25,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:25,511 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:25,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:25,518 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:25,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:25,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1111302758, now seen corresponding path program 1 times [2022-02-21 04:17:25,519 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:25,519 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867834602] [2022-02-21 04:17:25,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:25,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:25,665 INFO L290 TraceCheckUtils]: 0: Hoare triple {332#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {334#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:25,666 INFO L290 TraceCheckUtils]: 1: Hoare triple {334#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret28#1, main_~retValue_acc~8#1, main_~tmp~7#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; {334#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:25,666 INFO L290 TraceCheckUtils]: 2: Hoare triple {334#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {334#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:25,667 INFO L290 TraceCheckUtils]: 3: Hoare triple {334#(= 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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; {335#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:17:25,667 INFO L290 TraceCheckUtils]: 4: Hoare triple {335#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret28#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret28#1;havoc main_#t~ret28#1; {336#(= |ULTIMATE.start_main_~tmp~7#1| ~systemActive~0)} is VALID [2022-02-21 04:17:25,668 INFO L290 TraceCheckUtils]: 5: Hoare triple {336#(= |ULTIMATE.start_main_~tmp~7#1| ~systemActive~0)} assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; {337#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:25,668 INFO L290 TraceCheckUtils]: 6: Hoare triple {337#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {337#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:25,669 INFO L290 TraceCheckUtils]: 7: Hoare triple {337#(not (= 0 ~systemActive~0))} assume !false; {337#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:25,669 INFO L290 TraceCheckUtils]: 8: Hoare triple {337#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {337#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:25,670 INFO L290 TraceCheckUtils]: 9: Hoare triple {337#(not (= 0 ~systemActive~0))} test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; {337#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:25,670 INFO L290 TraceCheckUtils]: 10: Hoare triple {337#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~0#1); {337#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:25,671 INFO L290 TraceCheckUtils]: 11: Hoare triple {337#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {337#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:25,672 INFO L290 TraceCheckUtils]: 12: Hoare triple {337#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {337#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:25,672 INFO L290 TraceCheckUtils]: 13: Hoare triple {337#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {337#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:25,672 INFO L290 TraceCheckUtils]: 14: Hoare triple {337#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {337#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:25,673 INFO L290 TraceCheckUtils]: 15: Hoare triple {337#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {337#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:25,673 INFO L290 TraceCheckUtils]: 16: Hoare triple {337#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {337#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:25,674 INFO L290 TraceCheckUtils]: 17: Hoare triple {337#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {333#false} is VALID [2022-02-21 04:17:25,674 INFO L290 TraceCheckUtils]: 18: Hoare triple {333#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; {333#false} is VALID [2022-02-21 04:17:25,674 INFO L290 TraceCheckUtils]: 19: Hoare triple {333#false} __utac_acc__Specification3_spec__1_#t~ret29#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret29#1;havoc __utac_acc__Specification3_spec__1_#t~ret29#1; {333#false} is VALID [2022-02-21 04:17:25,675 INFO L290 TraceCheckUtils]: 20: Hoare triple {333#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; {333#false} is VALID [2022-02-21 04:17:25,675 INFO L290 TraceCheckUtils]: 21: Hoare triple {333#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {333#false} is VALID [2022-02-21 04:17:25,675 INFO L290 TraceCheckUtils]: 22: Hoare triple {333#false} assume { :end_inline_timeShift } true; {333#false} is VALID [2022-02-21 04:17:25,677 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 04:17:25,677 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:25,677 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867834602] [2022-02-21 04:17:25,678 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867834602] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:25,678 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:25,678 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:17:25,678 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451414389] [2022-02-21 04:17:25,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:25,804 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:25,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:17:25,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:17:25,830 INFO L87 Difference]: Start difference. First operand has 324 states, 323 states have (on average 1.3560371517027863) internal successors, (438), 323 states have internal predecessors, (438), 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 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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 04:17:26,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:26,584 INFO L93 Difference]: Finished difference Result 321 states and 424 transitions. [2022-02-21 04:17:26,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:17:26,586 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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 04:17:26,608 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:26,612 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 321 states and 424 transitions. [2022-02-21 04:17:26,625 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 208 [2022-02-21 04:17:26,634 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 321 states to 311 states and 414 transitions. [2022-02-21 04:17:26,635 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 311 [2022-02-21 04:17:26,636 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 311 [2022-02-21 04:17:26,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 311 states and 414 transitions. [2022-02-21 04:17:26,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:26,637 INFO L681 BuchiCegarLoop]: Abstraction has 311 states and 414 transitions. [2022-02-21 04:17:26,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states and 414 transitions. [2022-02-21 04:17:26,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2022-02-21 04:17:26,664 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:26,666 INFO L82 GeneralOperation]: Start isEquivalent. First operand 311 states and 414 transitions. Second operand has 311 states, 311 states have (on average 1.3311897106109325) internal successors, (414), 310 states have internal predecessors, (414), 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 04:17:26,668 INFO L74 IsIncluded]: Start isIncluded. First operand 311 states and 414 transitions. Second operand has 311 states, 311 states have (on average 1.3311897106109325) internal successors, (414), 310 states have internal predecessors, (414), 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 04:17:26,670 INFO L87 Difference]: Start difference. First operand 311 states and 414 transitions. Second operand has 311 states, 311 states have (on average 1.3311897106109325) internal successors, (414), 310 states have internal predecessors, (414), 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 04:17:26,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:26,682 INFO L93 Difference]: Finished difference Result 311 states and 414 transitions. [2022-02-21 04:17:26,683 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 414 transitions. [2022-02-21 04:17:26,684 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:26,685 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:26,685 INFO L74 IsIncluded]: Start isIncluded. First operand has 311 states, 311 states have (on average 1.3311897106109325) internal successors, (414), 310 states have internal predecessors, (414), 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 311 states and 414 transitions. [2022-02-21 04:17:26,686 INFO L87 Difference]: Start difference. First operand has 311 states, 311 states have (on average 1.3311897106109325) internal successors, (414), 310 states have internal predecessors, (414), 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 311 states and 414 transitions. [2022-02-21 04:17:26,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:26,700 INFO L93 Difference]: Finished difference Result 311 states and 414 transitions. [2022-02-21 04:17:26,700 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 414 transitions. [2022-02-21 04:17:26,707 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:26,708 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:26,708 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:26,708 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:26,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 311 states have (on average 1.3311897106109325) internal successors, (414), 310 states have internal predecessors, (414), 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 04:17:26,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 414 transitions. [2022-02-21 04:17:26,732 INFO L704 BuchiCegarLoop]: Abstraction has 311 states and 414 transitions. [2022-02-21 04:17:26,732 INFO L587 BuchiCegarLoop]: Abstraction has 311 states and 414 transitions. [2022-02-21 04:17:26,732 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:17:26,732 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 311 states and 414 transitions. [2022-02-21 04:17:26,734 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 208 [2022-02-21 04:17:26,734 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:26,734 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:26,735 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:26,735 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 04:17:26,735 INFO L791 eck$LassoCheckResult]: Stem: 970#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 942#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret28#1, main_~retValue_acc~8#1, main_~tmp~7#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 860#L637 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 810#L630 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 811#L645 main_#t~ret28#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret28#1;havoc main_#t~ret28#1; 741#L567 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 742#L541 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 672#L64-2 [2022-02-21 04:17:26,735 INFO L793 eck$LassoCheckResult]: Loop: 672#L64-2 assume !false; 905#L65 assume test_~splverifierCounter~0#1 < 4; 726#L66 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 727#L74 assume !(0 != test_~tmp~0#1); 867#L74-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 868#L84 assume !(0 != test_~tmp___0~0#1); 708#L84-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 709#L94 assume 0 != test_~tmp___2~0#1; 857#L100-2 assume { :begin_inline_timeShift } true; 683#L136 assume !(0 != ~pumpRunning~0); 684#L136-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 716#L220 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret12#1, isMethaneAlarm_~retValue_acc~0#1;havoc isMethaneAlarm_~retValue_acc~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 783#L413 isMethaneAlarm_#t~ret12#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0#1 := isMethaneAlarm_#t~ret12#1;havoc isMethaneAlarm_#t~ret12#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; 887#L281 processEnvironment_#t~ret10#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret10#1;havoc processEnvironment_#t~ret10#1; 927#L224 assume 0 != processEnvironment_~tmp~3#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 936#L271 assume { :end_inline_deactivatePump } true; 668#L220-1 assume { :end_inline_processEnvironment } true; 869#L143-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 779#L413-5 __utac_acc__Specification3_spec__1_#t~ret29#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret29#1;havoc __utac_acc__Specification3_spec__1_#t~ret29#1; 744#L590 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 745#L596-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 671#L153 assume { :end_inline_timeShift } true; 672#L64-2 [2022-02-21 04:17:26,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:26,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:17:26,736 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:26,736 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55388427] [2022-02-21 04:17:26,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:26,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:26,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:26,757 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:26,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:26,768 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:26,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:26,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1370670943, now seen corresponding path program 1 times [2022-02-21 04:17:26,768 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:26,768 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669707175] [2022-02-21 04:17:26,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:26,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:26,791 INFO L290 TraceCheckUtils]: 0: Hoare triple {1601#true} assume !false; {1601#true} is VALID [2022-02-21 04:17:26,791 INFO L290 TraceCheckUtils]: 1: Hoare triple {1601#true} assume test_~splverifierCounter~0#1 < 4; {1601#true} is VALID [2022-02-21 04:17:26,791 INFO L290 TraceCheckUtils]: 2: Hoare triple {1601#true} test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; {1601#true} is VALID [2022-02-21 04:17:26,791 INFO L290 TraceCheckUtils]: 3: Hoare triple {1601#true} assume !(0 != test_~tmp~0#1); {1601#true} is VALID [2022-02-21 04:17:26,792 INFO L290 TraceCheckUtils]: 4: Hoare triple {1601#true} test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {1601#true} is VALID [2022-02-21 04:17:26,792 INFO L290 TraceCheckUtils]: 5: Hoare triple {1601#true} assume !(0 != test_~tmp___0~0#1); {1601#true} is VALID [2022-02-21 04:17:26,792 INFO L290 TraceCheckUtils]: 6: Hoare triple {1601#true} test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {1601#true} is VALID [2022-02-21 04:17:26,792 INFO L290 TraceCheckUtils]: 7: Hoare triple {1601#true} assume 0 != test_~tmp___2~0#1; {1601#true} is VALID [2022-02-21 04:17:26,792 INFO L290 TraceCheckUtils]: 8: Hoare triple {1601#true} assume { :begin_inline_timeShift } true; {1601#true} is VALID [2022-02-21 04:17:26,792 INFO L290 TraceCheckUtils]: 9: Hoare triple {1601#true} assume !(0 != ~pumpRunning~0); {1603#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:26,793 INFO L290 TraceCheckUtils]: 10: Hoare triple {1603#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; {1603#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:26,793 INFO L290 TraceCheckUtils]: 11: Hoare triple {1603#(= ~pumpRunning~0 0)} assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret12#1, isMethaneAlarm_~retValue_acc~0#1;havoc isMethaneAlarm_~retValue_acc~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; {1602#false} is VALID [2022-02-21 04:17:26,793 INFO L290 TraceCheckUtils]: 12: Hoare triple {1602#false} isMethaneAlarm_#t~ret12#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0#1 := isMethaneAlarm_#t~ret12#1;havoc isMethaneAlarm_#t~ret12#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; {1602#false} is VALID [2022-02-21 04:17:26,794 INFO L290 TraceCheckUtils]: 13: Hoare triple {1602#false} processEnvironment_#t~ret10#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret10#1;havoc processEnvironment_#t~ret10#1; {1602#false} is VALID [2022-02-21 04:17:26,794 INFO L290 TraceCheckUtils]: 14: Hoare triple {1602#false} assume 0 != processEnvironment_~tmp~3#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; {1602#false} is VALID [2022-02-21 04:17:26,794 INFO L290 TraceCheckUtils]: 15: Hoare triple {1602#false} assume { :end_inline_deactivatePump } true; {1602#false} is VALID [2022-02-21 04:17:26,794 INFO L290 TraceCheckUtils]: 16: Hoare triple {1602#false} assume { :end_inline_processEnvironment } true; {1602#false} is VALID [2022-02-21 04:17:26,794 INFO L290 TraceCheckUtils]: 17: Hoare triple {1602#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; {1602#false} is VALID [2022-02-21 04:17:26,794 INFO L290 TraceCheckUtils]: 18: Hoare triple {1602#false} __utac_acc__Specification3_spec__1_#t~ret29#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret29#1;havoc __utac_acc__Specification3_spec__1_#t~ret29#1; {1602#false} is VALID [2022-02-21 04:17:26,794 INFO L290 TraceCheckUtils]: 19: Hoare triple {1602#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; {1602#false} is VALID [2022-02-21 04:17:26,795 INFO L290 TraceCheckUtils]: 20: Hoare triple {1602#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {1602#false} is VALID [2022-02-21 04:17:26,795 INFO L290 TraceCheckUtils]: 21: Hoare triple {1602#false} assume { :end_inline_timeShift } true; {1602#false} is VALID [2022-02-21 04:17:26,795 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 04:17:26,795 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:26,795 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669707175] [2022-02-21 04:17:26,795 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669707175] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:26,795 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:26,796 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:17:26,796 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873156774] [2022-02-21 04:17:26,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:26,796 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:26,796 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:26,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:17:26,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:17:26,797 INFO L87 Difference]: Start difference. First operand 311 states and 414 transitions. cyclomatic complexity: 105 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 04:17:27,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:27,073 INFO L93 Difference]: Finished difference Result 324 states and 410 transitions. [2022-02-21 04:17:27,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:17:27,074 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 04:17:27,086 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 04:17:27,087 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 324 states and 410 transitions. [2022-02-21 04:17:27,095 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 222 [2022-02-21 04:17:27,102 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 324 states to 324 states and 410 transitions. [2022-02-21 04:17:27,102 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 324 [2022-02-21 04:17:27,102 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 324 [2022-02-21 04:17:27,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 324 states and 410 transitions. [2022-02-21 04:17:27,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:27,103 INFO L681 BuchiCegarLoop]: Abstraction has 324 states and 410 transitions. [2022-02-21 04:17:27,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states and 410 transitions. [2022-02-21 04:17:27,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2022-02-21 04:17:27,111 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:27,111 INFO L82 GeneralOperation]: Start isEquivalent. First operand 324 states and 410 transitions. Second operand has 324 states, 324 states have (on average 1.2654320987654322) internal successors, (410), 323 states have internal predecessors, (410), 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 04:17:27,112 INFO L74 IsIncluded]: Start isIncluded. First operand 324 states and 410 transitions. Second operand has 324 states, 324 states have (on average 1.2654320987654322) internal successors, (410), 323 states have internal predecessors, (410), 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 04:17:27,113 INFO L87 Difference]: Start difference. First operand 324 states and 410 transitions. Second operand has 324 states, 324 states have (on average 1.2654320987654322) internal successors, (410), 323 states have internal predecessors, (410), 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 04:17:27,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:27,119 INFO L93 Difference]: Finished difference Result 324 states and 410 transitions. [2022-02-21 04:17:27,119 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 410 transitions. [2022-02-21 04:17:27,120 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:27,120 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:27,121 INFO L74 IsIncluded]: Start isIncluded. First operand has 324 states, 324 states have (on average 1.2654320987654322) internal successors, (410), 323 states have internal predecessors, (410), 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 324 states and 410 transitions. [2022-02-21 04:17:27,121 INFO L87 Difference]: Start difference. First operand has 324 states, 324 states have (on average 1.2654320987654322) internal successors, (410), 323 states have internal predecessors, (410), 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 324 states and 410 transitions. [2022-02-21 04:17:27,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:27,128 INFO L93 Difference]: Finished difference Result 324 states and 410 transitions. [2022-02-21 04:17:27,128 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 410 transitions. [2022-02-21 04:17:27,129 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:27,129 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:27,129 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:27,129 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:27,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 324 states have (on average 1.2654320987654322) internal successors, (410), 323 states have internal predecessors, (410), 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 04:17:27,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 410 transitions. [2022-02-21 04:17:27,136 INFO L704 BuchiCegarLoop]: Abstraction has 324 states and 410 transitions. [2022-02-21 04:17:27,136 INFO L587 BuchiCegarLoop]: Abstraction has 324 states and 410 transitions. [2022-02-21 04:17:27,136 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:17:27,136 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 324 states and 410 transitions. [2022-02-21 04:17:27,137 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 222 [2022-02-21 04:17:27,137 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:27,137 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:27,138 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:27,138 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, 1] [2022-02-21 04:17:27,138 INFO L791 eck$LassoCheckResult]: Stem: 2193#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 2164#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret28#1, main_~retValue_acc~8#1, main_~tmp~7#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 2086#L637 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2044#L630 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 2045#L645 main_#t~ret28#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret28#1;havoc main_#t~ret28#1; 1990#L567 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 1991#L541 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1933#L64-2 [2022-02-21 04:17:27,140 INFO L793 eck$LassoCheckResult]: Loop: 1933#L64-2 assume !false; 2130#L65 assume test_~splverifierCounter~0#1 < 4; 1978#L66 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 1979#L74 assume !(0 != test_~tmp~0#1); 2094#L74-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 2095#L84 assume !(0 != test_~tmp___0~0#1); 1962#L84-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1963#L94 assume 0 != test_~tmp___2~0#1; 2085#L100-2 assume { :begin_inline_timeShift } true; 1944#L136 assume !(0 != ~pumpRunning~0); 1945#L136-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1970#L220 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret9#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~2#1; 2021#L194-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 2031#L168-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 2032#L453-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 2003#L458-3 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 2004#L339-9 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2022#L339-11 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1997#L345-3 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 1998#L172-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2161#L160-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1975#L168-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1987#L194-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1929#L220-1 assume { :end_inline_processEnvironment } true; 2097#L143-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 2018#L413-5 __utac_acc__Specification3_spec__1_#t~ret29#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret29#1;havoc __utac_acc__Specification3_spec__1_#t~ret29#1; 1992#L590 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 1993#L596-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1932#L153 assume { :end_inline_timeShift } true; 1933#L64-2 [2022-02-21 04:17:27,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:27,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:17:27,141 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:27,141 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242230490] [2022-02-21 04:17:27,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:27,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:27,150 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:27,158 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:27,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:27,159 INFO L85 PathProgramCache]: Analyzing trace with hash -2054212728, now seen corresponding path program 1 times [2022-02-21 04:17:27,159 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:27,159 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080879845] [2022-02-21 04:17:27,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:27,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:27,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:27,165 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:27,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:27,170 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:27,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:27,170 INFO L85 PathProgramCache]: Analyzing trace with hash 2115019844, now seen corresponding path program 1 times [2022-02-21 04:17:27,170 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:27,171 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122494836] [2022-02-21 04:17:27,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:27,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:27,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:27,207 INFO L290 TraceCheckUtils]: 0: Hoare triple {2907#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,207 INFO L290 TraceCheckUtils]: 1: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret28#1, main_~retValue_acc~8#1, main_~tmp~7#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,208 INFO L290 TraceCheckUtils]: 2: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,208 INFO L290 TraceCheckUtils]: 3: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,208 INFO L290 TraceCheckUtils]: 4: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} main_#t~ret28#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret28#1;havoc main_#t~ret28#1; {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,209 INFO L290 TraceCheckUtils]: 5: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,209 INFO L290 TraceCheckUtils]: 6: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,209 INFO L290 TraceCheckUtils]: 7: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} assume !false; {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,210 INFO L290 TraceCheckUtils]: 8: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} assume test_~splverifierCounter~0#1 < 4; {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,210 INFO L290 TraceCheckUtils]: 9: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,210 INFO L290 TraceCheckUtils]: 10: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp~0#1); {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,211 INFO L290 TraceCheckUtils]: 11: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,211 INFO L290 TraceCheckUtils]: 12: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___0~0#1); {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,211 INFO L290 TraceCheckUtils]: 13: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,213 INFO L290 TraceCheckUtils]: 14: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} assume 0 != test_~tmp___2~0#1; {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,214 INFO L290 TraceCheckUtils]: 15: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} assume { :begin_inline_timeShift } true; {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,214 INFO L290 TraceCheckUtils]: 16: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0); {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,214 INFO L290 TraceCheckUtils]: 17: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,215 INFO L290 TraceCheckUtils]: 18: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret9#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~2#1; {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,215 INFO L290 TraceCheckUtils]: 19: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,215 INFO L290 TraceCheckUtils]: 20: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,216 INFO L290 TraceCheckUtils]: 21: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,216 INFO L290 TraceCheckUtils]: 22: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,216 INFO L290 TraceCheckUtils]: 23: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0; {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,217 INFO L290 TraceCheckUtils]: 24: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,217 INFO L290 TraceCheckUtils]: 25: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,217 INFO L290 TraceCheckUtils]: 26: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,218 INFO L290 TraceCheckUtils]: 27: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__base } true; {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,218 INFO L290 TraceCheckUtils]: 28: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,218 INFO L290 TraceCheckUtils]: 29: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,219 INFO L290 TraceCheckUtils]: 30: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment } true; {2909#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:27,219 INFO L290 TraceCheckUtils]: 31: Hoare triple {2909#(= ~methaneLevelCritical~0 0)} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; {2910#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} is VALID [2022-02-21 04:17:27,220 INFO L290 TraceCheckUtils]: 32: Hoare triple {2910#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} __utac_acc__Specification3_spec__1_#t~ret29#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret29#1;havoc __utac_acc__Specification3_spec__1_#t~ret29#1; {2911#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~8#1| 0)} is VALID [2022-02-21 04:17:27,220 INFO L290 TraceCheckUtils]: 33: Hoare triple {2911#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~8#1| 0)} assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; {2908#false} is VALID [2022-02-21 04:17:27,220 INFO L290 TraceCheckUtils]: 34: Hoare triple {2908#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {2908#false} is VALID [2022-02-21 04:17:27,220 INFO L290 TraceCheckUtils]: 35: Hoare triple {2908#false} assume { :end_inline_timeShift } true; {2908#false} is VALID [2022-02-21 04:17:27,220 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 04:17:27,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:27,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122494836] [2022-02-21 04:17:27,239 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122494836] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:27,240 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:27,240 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:17:27,240 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395690459] [2022-02-21 04:17:27,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:27,420 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:27,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:17:27,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:17:27,421 INFO L87 Difference]: Start difference. First operand 324 states and 410 transitions. cyclomatic complexity: 88 Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 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 04:17:28,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:28,705 INFO L93 Difference]: Finished difference Result 1113 states and 1403 transitions. [2022-02-21 04:17:28,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:17:28,705 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 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 04:17:28,743 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:28,744 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1113 states and 1403 transitions. [2022-02-21 04:17:28,817 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 793 [2022-02-21 04:17:28,883 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1113 states to 1113 states and 1403 transitions. [2022-02-21 04:17:28,899 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1113 [2022-02-21 04:17:28,900 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1113 [2022-02-21 04:17:28,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1113 states and 1403 transitions. [2022-02-21 04:17:28,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:28,902 INFO L681 BuchiCegarLoop]: Abstraction has 1113 states and 1403 transitions. [2022-02-21 04:17:28,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states and 1403 transitions. [2022-02-21 04:17:28,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 641. [2022-02-21 04:17:28,917 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:28,919 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1113 states and 1403 transitions. Second operand has 641 states, 641 states have (on average 1.2558502340093605) internal successors, (805), 640 states have internal predecessors, (805), 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 04:17:28,920 INFO L74 IsIncluded]: Start isIncluded. First operand 1113 states and 1403 transitions. Second operand has 641 states, 641 states have (on average 1.2558502340093605) internal successors, (805), 640 states have internal predecessors, (805), 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 04:17:28,922 INFO L87 Difference]: Start difference. First operand 1113 states and 1403 transitions. Second operand has 641 states, 641 states have (on average 1.2558502340093605) internal successors, (805), 640 states have internal predecessors, (805), 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 04:17:28,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:28,953 INFO L93 Difference]: Finished difference Result 1113 states and 1403 transitions. [2022-02-21 04:17:28,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1403 transitions. [2022-02-21 04:17:28,955 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:28,955 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:28,956 INFO L74 IsIncluded]: Start isIncluded. First operand has 641 states, 641 states have (on average 1.2558502340093605) internal successors, (805), 640 states have internal predecessors, (805), 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 1113 states and 1403 transitions. [2022-02-21 04:17:28,957 INFO L87 Difference]: Start difference. First operand has 641 states, 641 states have (on average 1.2558502340093605) internal successors, (805), 640 states have internal predecessors, (805), 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 1113 states and 1403 transitions. [2022-02-21 04:17:29,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:29,005 INFO L93 Difference]: Finished difference Result 1113 states and 1403 transitions. [2022-02-21 04:17:29,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1403 transitions. [2022-02-21 04:17:29,006 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:29,007 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:29,007 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:29,007 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:29,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 641 states have (on average 1.2558502340093605) internal successors, (805), 640 states have internal predecessors, (805), 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 04:17:29,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 805 transitions. [2022-02-21 04:17:29,020 INFO L704 BuchiCegarLoop]: Abstraction has 641 states and 805 transitions. [2022-02-21 04:17:29,020 INFO L587 BuchiCegarLoop]: Abstraction has 641 states and 805 transitions. [2022-02-21 04:17:29,020 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:17:29,020 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 641 states and 805 transitions. [2022-02-21 04:17:29,022 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 444 [2022-02-21 04:17:29,022 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:29,022 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:29,023 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:29,023 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, 1, 1, 1] [2022-02-21 04:17:29,023 INFO L791 eck$LassoCheckResult]: Stem: 4312#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 4271#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret28#1, main_~retValue_acc~8#1, main_~tmp~7#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 4190#L637 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 4149#L630 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 4150#L645 main_#t~ret28#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret28#1;havoc main_#t~ret28#1; 4095#L567 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 4096#L541 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 4038#L64-2 [2022-02-21 04:17:29,023 INFO L793 eck$LassoCheckResult]: Loop: 4038#L64-2 assume !false; 4237#L65 assume test_~splverifierCounter~0#1 < 4; 4318#L66 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 4284#L74 assume !(0 != test_~tmp~0#1); 4200#L74-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 4201#L84 assume !(0 != test_~tmp___0~0#1); 4067#L84-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 4068#L94 assume 0 != test_~tmp___2~0#1; 4189#L100-2 assume { :begin_inline_timeShift } true; 4049#L136 assume !(0 != ~pumpRunning~0); 4050#L136-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 4075#L220 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret9#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~2#1; 4125#L194-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 4138#L168-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 4139#L453-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 4275#L458-3 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 4126#L339-9 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0; 4127#L339-11 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 4626#L345-3 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 4518#L172-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 4268#L160-6 assume { :end_inline_processEnvironment__wrappee__base } true; 4080#L168-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 4092#L194-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 4034#L220-1 assume { :end_inline_processEnvironment } true; 4203#L143-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 4122#L413-5 __utac_acc__Specification3_spec__1_#t~ret29#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret29#1;havoc __utac_acc__Specification3_spec__1_#t~ret29#1; 4097#L590 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 4087#L445 __utac_acc__Specification3_spec__1_#t~ret30#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~3#1 := __utac_acc__Specification3_spec__1_#t~ret30#1;havoc __utac_acc__Specification3_spec__1_#t~ret30#1; 4088#L596 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3#1); 4192#L596-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 4037#L153 assume { :end_inline_timeShift } true; 4038#L64-2 [2022-02-21 04:17:29,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:29,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-02-21 04:17:29,024 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:29,024 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177251844] [2022-02-21 04:17:29,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:29,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:29,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:29,031 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:29,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:29,037 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:29,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:29,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1587783387, now seen corresponding path program 1 times [2022-02-21 04:17:29,038 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:29,038 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937176773] [2022-02-21 04:17:29,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:29,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:29,044 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:29,049 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:29,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:29,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1015797911, now seen corresponding path program 1 times [2022-02-21 04:17:29,050 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:29,050 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591590123] [2022-02-21 04:17:29,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:29,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:29,075 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:29,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:29,089 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:31,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:17:31 BoogieIcfgContainer [2022-02-21 04:17:31,627 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:17:31,637 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:17:31,637 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:17:31,638 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:17:31,638 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:25" (3/4) ... [2022-02-21 04:17:31,640 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:17:31,677 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:17:31,677 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:17:31,678 INFO L158 Benchmark]: Toolchain (without parser) took 7979.17ms. Allocated memory was 79.7MB in the beginning and 182.5MB in the end (delta: 102.8MB). Free memory was 49.7MB in the beginning and 97.1MB in the end (delta: -47.4MB). Peak memory consumption was 56.0MB. Max. memory is 16.1GB. [2022-02-21 04:17:31,678 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 79.7MB. Free memory was 50.3MB in the beginning and 50.2MB in the end (delta: 44.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:17:31,678 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.75ms. Allocated memory is still 79.7MB. Free memory was 49.5MB in the beginning and 45.6MB in the end (delta: 3.9MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2022-02-21 04:17:31,678 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.48ms. Allocated memory is still 79.7MB. Free memory was 45.6MB in the beginning and 38.7MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:17:31,679 INFO L158 Benchmark]: Boogie Preprocessor took 65.31ms. Allocated memory is still 79.7MB. Free memory was 38.7MB in the beginning and 34.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:31,679 INFO L158 Benchmark]: RCFGBuilder took 949.51ms. Allocated memory was 79.7MB in the beginning and 104.9MB in the end (delta: 25.2MB). Free memory was 34.5MB in the beginning and 76.9MB in the end (delta: -42.3MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:31,679 INFO L158 Benchmark]: BuchiAutomizer took 6427.16ms. Allocated memory was 104.9MB in the beginning and 182.5MB in the end (delta: 77.6MB). Free memory was 76.9MB in the beginning and 100.3MB in the end (delta: -23.4MB). Peak memory consumption was 113.6MB. Max. memory is 16.1GB. [2022-02-21 04:17:31,679 INFO L158 Benchmark]: Witness Printer took 39.55ms. Allocated memory is still 182.5MB. Free memory was 100.3MB in the beginning and 97.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:31,681 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 0.25ms. Allocated memory is still 79.7MB. Free memory was 50.3MB in the beginning and 50.2MB in the end (delta: 44.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 422.75ms. Allocated memory is still 79.7MB. Free memory was 49.5MB in the beginning and 45.6MB in the end (delta: 3.9MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.48ms. Allocated memory is still 79.7MB. Free memory was 45.6MB in the beginning and 38.7MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.31ms. Allocated memory is still 79.7MB. Free memory was 38.7MB in the beginning and 34.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 949.51ms. Allocated memory was 79.7MB in the beginning and 104.9MB in the end (delta: 25.2MB). Free memory was 34.5MB in the beginning and 76.9MB in the end (delta: -42.3MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 6427.16ms. Allocated memory was 104.9MB in the beginning and 182.5MB in the end (delta: 77.6MB). Free memory was 76.9MB in the beginning and 100.3MB in the end (delta: -23.4MB). Peak memory consumption was 113.6MB. Max. memory is 16.1GB. * Witness Printer took 39.55ms. Allocated memory is still 182.5MB. Free memory was 100.3MB in the beginning and 97.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 641 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.3s. Construction of modules took 0.2s. Büchi inclusion checks took 2.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 472 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 641 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3176 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3176 mSDsluCounter, 2832 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1639 mSDsCounter, 89 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 213 IncrementalHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 89 mSolverCounterUnsat, 1193 mSDtfsCounter, 213 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 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: 64]: 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@16abff2f=0, tmp=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, retValue_acc=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2eb1efd=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6271c5b2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@389083ec=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2193e793=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44b728e9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@506b48e0=29, methaneLevelCritical=0, retValue_acc=1, retValue_acc=1, \result=0, \result=1, retValue_acc=0, \result=1, tmp=0, tmp___0=1, tmp=1, tmp=1, tmp___2=29, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2626ecff=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23e3250c=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@cd84377=0, cleanupTimeShifts=4, \result=0, tmp=0, head=0, \result=1, tmp___1=0, retValue_acc=1, NULL=0, waterLevel=1, systemActive=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23bd31d0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4abbad=0, retValue_acc=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 64]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L128] int pumpRunning = 0; [L129] int systemActive = 1; [L370] int waterLevel = 1; [L371] int methaneLevelCritical = 0; [L482] int cleanupTimeShifts = 4; [L819] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L558] int retValue_acc ; [L559] int tmp ; [L563] FCALL select_helpers() [L564] FCALL select_features() [L565] CALL, EXPR valid_product() [L641] int retValue_acc ; [L644] retValue_acc = 1 [L645] return (retValue_acc); [L565] RET, EXPR valid_product() [L565] tmp = valid_product() [L567] COND TRUE \read(tmp) [L569] FCALL setup() [L570] CALL runTest() [L549] CALL test() [L55] int splverifierCounter ; [L56] int tmp ; [L57] int tmp___0 ; [L58] int tmp___1 ; [L59] int tmp___2 ; [L62] splverifierCounter = 0 Loop: [L64] COND TRUE 1 [L66] COND TRUE splverifierCounter < 4 [L72] tmp = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp)) [L82] tmp___0 = __VERIFIER_nondet_int() [L84] COND FALSE !(\read(tmp___0)) [L92] tmp___2 = __VERIFIER_nondet_int() [L94] COND TRUE \read(tmp___2) [L107] CALL timeShift() [L136] COND FALSE !(\read(pumpRunning)) [L143] COND TRUE \read(systemActive) [L145] CALL processEnvironment() [L217] int tmp ; [L220] COND FALSE !(\read(pumpRunning)) [L235] CALL processEnvironment__wrappee__methaneQuery() [L191] int tmp ; [L194] COND FALSE !(\read(pumpRunning)) [L209] CALL processEnvironment__wrappee__highWaterSensor() [L165] int tmp ; [L168] COND TRUE ! pumpRunning [L170] CALL, EXPR isHighWaterLevel() [L331] int retValue_acc ; [L332] int tmp ; [L333] int tmp___0 ; [L337] CALL, EXPR isHighWaterSensorDry() [L450] int retValue_acc ; [L453] COND TRUE waterLevel < 2 [L454] retValue_acc = 1 [L455] return (retValue_acc); [L337] RET, EXPR isHighWaterSensorDry() [L337] tmp = isHighWaterSensorDry() [L339] COND TRUE \read(tmp) [L340] tmp___0 = 0 [L344] retValue_acc = tmp___0 [L345] return (retValue_acc); [L170] RET, EXPR isHighWaterLevel() [L170] tmp = isHighWaterLevel() [L172] COND FALSE !(\read(tmp)) [L178] FCALL processEnvironment__wrappee__base() [L209] RET processEnvironment__wrappee__highWaterSensor() [L235] RET processEnvironment__wrappee__methaneQuery() [L145] RET processEnvironment() [L151] CALL __utac_acc__Specification3_spec__1() [L582] int tmp ; [L583] int tmp___0 ; [L584] int tmp___1 ; [L588] CALL, EXPR isMethaneLevelCritical() [L409] int retValue_acc ; [L412] retValue_acc = methaneLevelCritical [L413] return (retValue_acc); [L588] RET, EXPR isMethaneLevelCritical() [L588] tmp = isMethaneLevelCritical() [L590] COND FALSE !(\read(tmp)) [L594] CALL, EXPR getWaterLevel() [L441] int retValue_acc ; [L444] retValue_acc = waterLevel [L445] return (retValue_acc); [L594] RET, EXPR getWaterLevel() [L594] tmp___0 = getWaterLevel() [L596] COND FALSE !(tmp___0 == 2) [L151] RET __utac_acc__Specification3_spec__1() [L107] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:17:31,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, 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)