./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product53.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_product53.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 e1c4d106eb612b91999bdca4bb49f57df1223b70f35ecd881d6daa6062cb1b0b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:17:15,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:17:15,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:17:15,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:17:15,312 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:17:15,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:17:15,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:17:15,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:17:15,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:17:15,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:17:15,324 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:17:15,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:17:15,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:17:15,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:17:15,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:17:15,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:17:15,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:17:15,333 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:17:15,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:17:15,339 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:17:15,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:17:15,343 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:17:15,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:17:15,345 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:17:15,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:17:15,351 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:17:15,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:17:15,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:17:15,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:17:15,354 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:17:15,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:17:15,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:17:15,356 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:17:15,357 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:17:15,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:17:15,358 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:17:15,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:17:15,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:17:15,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:17:15,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:17:15,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:17:15,360 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:17:15,386 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:17:15,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:17:15,387 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:17:15,387 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:17:15,388 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:17:15,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:17:15,389 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:17:15,389 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:17:15,389 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:17:15,389 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:17:15,390 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:17:15,390 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:17:15,390 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:17:15,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:17:15,390 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:17:15,391 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:17:15,391 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:17:15,391 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:17:15,391 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:17:15,391 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:17:15,391 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:17:15,391 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:17:15,392 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:17:15,392 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:17:15,392 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:17:15,392 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:17:15,392 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:17:15,392 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:17:15,393 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:17:15,393 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:17:15,393 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:17:15,394 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:17:15,394 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1c4d106eb612b91999bdca4bb49f57df1223b70f35ecd881d6daa6062cb1b0b [2022-02-21 04:17:15,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:17:15,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:17:15,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:17:15,620 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:17:15,621 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:17:15,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c [2022-02-21 04:17:15,670 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0546998a3/e542e7e1dd82420188343d34520da879/FLAG9ffa34fc6 [2022-02-21 04:17:16,082 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:17:16,084 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c [2022-02-21 04:17:16,096 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0546998a3/e542e7e1dd82420188343d34520da879/FLAG9ffa34fc6 [2022-02-21 04:17:16,458 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0546998a3/e542e7e1dd82420188343d34520da879 [2022-02-21 04:17:16,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:17:16,462 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:17:16,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:16,472 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:17:16,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:17:16,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:16" (1/1) ... [2022-02-21 04:17:16,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dd28eb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:16, skipping insertion in model container [2022-02-21 04:17:16,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:16" (1/1) ... [2022-02-21 04:17:16,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:17:16,502 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:17:16,627 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_product53.cil.c[1605,1618] [2022-02-21 04:17:16,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:16,746 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:17:16,755 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_product53.cil.c[1605,1618] [2022-02-21 04:17:16,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:16,828 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:17:16,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:16 WrapperNode [2022-02-21 04:17:16,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:16,830 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:16,830 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:17:16,830 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:17:16,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:16" (1/1) ... [2022-02-21 04:17:16,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:16" (1/1) ... [2022-02-21 04:17:16,898 INFO L137 Inliner]: procedures = 56, calls = 159, calls flagged for inlining = 56, calls inlined = 140, statements flattened = 1034 [2022-02-21 04:17:16,901 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:16,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:17:16,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:17:16,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:17:16,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:16" (1/1) ... [2022-02-21 04:17:16,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:16" (1/1) ... [2022-02-21 04:17:16,916 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:16" (1/1) ... [2022-02-21 04:17:16,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:16" (1/1) ... [2022-02-21 04:17:16,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:16" (1/1) ... [2022-02-21 04:17:16,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:16" (1/1) ... [2022-02-21 04:17:16,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:16" (1/1) ... [2022-02-21 04:17:16,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:17:16,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:17:16,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:17:16,953 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:17:16,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:16" (1/1) ... [2022-02-21 04:17:16,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:17:16,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:17:16,998 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 04:17:17,000 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 04:17:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:17:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:17:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:17:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:17:17,116 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:17:17,117 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:17:17,730 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:17:17,737 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:17:17,737 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:17:17,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:17 BoogieIcfgContainer [2022-02-21 04:17:17,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:17:17,740 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:17:17,740 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:17:17,742 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:17:17,743 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:17,743 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:17:16" (1/3) ... [2022-02-21 04:17:17,744 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7cf4d8d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:17, skipping insertion in model container [2022-02-21 04:17:17,744 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:17,744 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:16" (2/3) ... [2022-02-21 04:17:17,744 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7cf4d8d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:17, skipping insertion in model container [2022-02-21 04:17:17,744 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:17,744 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:17" (3/3) ... [2022-02-21 04:17:17,745 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product53.cil.c [2022-02-21 04:17:17,777 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:17:17,778 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:17:17,778 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:17:17,778 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:17:17,778 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:17:17,778 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:17:17,778 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:17:17,778 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:17:17,796 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 276 states, 275 states have (on average 1.3745454545454545) internal successors, (378), 275 states have internal predecessors, (378), 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 04:17:17,865 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 180 [2022-02-21 04:17:17,865 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:17,866 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:17,870 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:17,870 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 04:17:17,870 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:17:17,874 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 276 states, 275 states have (on average 1.3745454545454545) internal successors, (378), 275 states have internal predecessors, (378), 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 04:17:17,887 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 180 [2022-02-21 04:17:17,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:17,887 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:17,887 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:17,887 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 04:17:17,891 INFO L791 eck$LassoCheckResult]: Stem: 267#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;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 193#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 131#L84true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 225#L77true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 123#L92true main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 42#L985true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 30#L962true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#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; 108#L111-2true [2022-02-21 04:17:17,907 INFO L793 eck$LassoCheckResult]: Loop: 108#L111-2true assume !false; 205#L112true assume test_~splverifierCounter~0#1 < 4; 259#L113true test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 34#L121true assume !(0 != test_~tmp~0#1); 156#L121-2true test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 54#L131true assume !(0 != test_~tmp___0~0#1); 106#L131-2true test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 55#L141true assume 0 != test_~tmp___2~0#1; 90#L147-2true assume { :begin_inline_timeShift } true; 37#L183true assume !(0 != ~pumpRunning~0); 189#L183-2true assume !(0 != ~systemActive~0); 246#L190-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#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~6#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~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 115#L443-1true __utac_acc__Specification3_spec__1_#t~ret28#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~6#1 := __utac_acc__Specification3_spec__1_#t~ret28#1;havoc __utac_acc__Specification3_spec__1_#t~ret28#1; 165#L512true assume 0 != __utac_acc__Specification3_spec__1_~tmp~6#1; 186#L518-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 116#L200true assume { :end_inline_timeShift } true; 108#L111-2true [2022-02-21 04:17:17,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:17,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:17:17,918 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:17,918 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191681210] [2022-02-21 04:17:17,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:17,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:18,035 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:18,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:18,081 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:18,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:18,083 INFO L85 PathProgramCache]: Analyzing trace with hash 408239574, now seen corresponding path program 1 times [2022-02-21 04:17:18,084 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:18,085 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593147114] [2022-02-21 04:17:18,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:18,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:18,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:18,106 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:18,110 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:18,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:18,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1763658650, now seen corresponding path program 1 times [2022-02-21 04:17:18,112 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:18,112 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146414766] [2022-02-21 04:17:18,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:18,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:18,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:18,229 INFO L290 TraceCheckUtils]: 0: Hoare triple {284#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;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; {286#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:18,230 INFO L290 TraceCheckUtils]: 1: Hoare triple {286#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; {286#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:18,230 INFO L290 TraceCheckUtils]: 2: Hoare triple {286#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {286#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:18,230 INFO L290 TraceCheckUtils]: 3: Hoare triple {286#(= 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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; {287#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:17:18,231 INFO L290 TraceCheckUtils]: 4: Hoare triple {287#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; {288#(= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0)} is VALID [2022-02-21 04:17:18,231 INFO L290 TraceCheckUtils]: 5: Hoare triple {288#(= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0)} assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; {289#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:18,231 INFO L290 TraceCheckUtils]: 6: Hoare triple {289#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#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; {289#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:18,232 INFO L290 TraceCheckUtils]: 7: Hoare triple {289#(not (= 0 ~systemActive~0))} assume !false; {289#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:18,232 INFO L290 TraceCheckUtils]: 8: Hoare triple {289#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {289#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:18,233 INFO L290 TraceCheckUtils]: 9: Hoare triple {289#(not (= 0 ~systemActive~0))} test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {289#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:18,233 INFO L290 TraceCheckUtils]: 10: Hoare triple {289#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~0#1); {289#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:18,234 INFO L290 TraceCheckUtils]: 11: Hoare triple {289#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {289#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:18,235 INFO L290 TraceCheckUtils]: 12: Hoare triple {289#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {289#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:18,235 INFO L290 TraceCheckUtils]: 13: Hoare triple {289#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; {289#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:18,235 INFO L290 TraceCheckUtils]: 14: Hoare triple {289#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {289#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:18,237 INFO L290 TraceCheckUtils]: 15: Hoare triple {289#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {289#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:18,237 INFO L290 TraceCheckUtils]: 16: Hoare triple {289#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {289#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:18,237 INFO L290 TraceCheckUtils]: 17: Hoare triple {289#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {285#false} is VALID [2022-02-21 04:17:18,237 INFO L290 TraceCheckUtils]: 18: Hoare triple {285#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#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~6#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~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; {285#false} is VALID [2022-02-21 04:17:18,238 INFO L290 TraceCheckUtils]: 19: Hoare triple {285#false} __utac_acc__Specification3_spec__1_#t~ret28#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~6#1 := __utac_acc__Specification3_spec__1_#t~ret28#1;havoc __utac_acc__Specification3_spec__1_#t~ret28#1; {285#false} is VALID [2022-02-21 04:17:18,238 INFO L290 TraceCheckUtils]: 20: Hoare triple {285#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~6#1; {285#false} is VALID [2022-02-21 04:17:18,238 INFO L290 TraceCheckUtils]: 21: Hoare triple {285#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {285#false} is VALID [2022-02-21 04:17:18,238 INFO L290 TraceCheckUtils]: 22: Hoare triple {285#false} assume { :end_inline_timeShift } true; {285#false} is VALID [2022-02-21 04:17:18,239 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 04:17:18,240 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:18,240 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146414766] [2022-02-21 04:17:18,241 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146414766] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:18,241 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:18,241 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:17:18,241 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938638699] [2022-02-21 04:17:18,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:18,330 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:18,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:17:18,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:17:18,359 INFO L87 Difference]: Start difference. First operand has 276 states, 275 states have (on average 1.3745454545454545) internal successors, (378), 275 states have internal predecessors, (378), 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 04:17:18,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:18,874 INFO L93 Difference]: Finished difference Result 273 states and 364 transitions. [2022-02-21 04:17:18,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:17:18,875 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 04:17:18,893 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 04:17:18,896 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 273 states and 364 transitions. [2022-02-21 04:17:18,904 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 176 [2022-02-21 04:17:18,913 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 273 states to 263 states and 354 transitions. [2022-02-21 04:17:18,914 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 263 [2022-02-21 04:17:18,914 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 263 [2022-02-21 04:17:18,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 263 states and 354 transitions. [2022-02-21 04:17:18,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:18,915 INFO L681 BuchiCegarLoop]: Abstraction has 263 states and 354 transitions. [2022-02-21 04:17:18,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states and 354 transitions. [2022-02-21 04:17:18,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 263. [2022-02-21 04:17:18,938 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:18,939 INFO L82 GeneralOperation]: Start isEquivalent. First operand 263 states and 354 transitions. Second operand has 263 states, 263 states have (on average 1.3460076045627376) internal successors, (354), 262 states have internal predecessors, (354), 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 04:17:18,940 INFO L74 IsIncluded]: Start isIncluded. First operand 263 states and 354 transitions. Second operand has 263 states, 263 states have (on average 1.3460076045627376) internal successors, (354), 262 states have internal predecessors, (354), 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 04:17:18,941 INFO L87 Difference]: Start difference. First operand 263 states and 354 transitions. Second operand has 263 states, 263 states have (on average 1.3460076045627376) internal successors, (354), 262 states have internal predecessors, (354), 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 04:17:18,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:18,948 INFO L93 Difference]: Finished difference Result 263 states and 354 transitions. [2022-02-21 04:17:18,948 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 354 transitions. [2022-02-21 04:17:18,950 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:18,950 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:18,951 INFO L74 IsIncluded]: Start isIncluded. First operand has 263 states, 263 states have (on average 1.3460076045627376) internal successors, (354), 262 states have internal predecessors, (354), 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 263 states and 354 transitions. [2022-02-21 04:17:18,951 INFO L87 Difference]: Start difference. First operand has 263 states, 263 states have (on average 1.3460076045627376) internal successors, (354), 262 states have internal predecessors, (354), 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 263 states and 354 transitions. [2022-02-21 04:17:18,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:18,958 INFO L93 Difference]: Finished difference Result 263 states and 354 transitions. [2022-02-21 04:17:18,958 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 354 transitions. [2022-02-21 04:17:18,962 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:18,962 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:18,962 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:18,962 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:18,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 263 states have (on average 1.3460076045627376) internal successors, (354), 262 states have internal predecessors, (354), 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 04:17:18,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 354 transitions. [2022-02-21 04:17:18,969 INFO L704 BuchiCegarLoop]: Abstraction has 263 states and 354 transitions. [2022-02-21 04:17:18,970 INFO L587 BuchiCegarLoop]: Abstraction has 263 states and 354 transitions. [2022-02-21 04:17:18,970 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:17:18,970 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 263 states and 354 transitions. [2022-02-21 04:17:18,972 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 176 [2022-02-21 04:17:18,972 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:18,972 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:18,973 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:18,973 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 04:17:18,973 INFO L791 eck$LassoCheckResult]: Stem: 827#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;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 804#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 768#L84 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 769#L77 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 759#L92 main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 646#L985 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 623#L962 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#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; 624#L111-2 [2022-02-21 04:17:18,974 INFO L793 eck$LassoCheckResult]: Loop: 624#L111-2 assume !false; 742#L112 assume test_~splverifierCounter~0#1 < 4; 809#L113 test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 630#L121 assume !(0 != test_~tmp~0#1); 631#L121-2 test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 666#L131 assume !(0 != test_~tmp___0~0#1); 668#L131-2 test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 669#L141 assume 0 != test_~tmp___2~0#1; 671#L147-2 assume { :begin_inline_timeShift } true; 638#L183 assume !(0 != ~pumpRunning~0); 639#L183-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 794#L267 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret12#1, isMethaneAlarm_~retValue_acc~2#1;havoc isMethaneAlarm_~retValue_acc~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 690#L443 isMethaneAlarm_#t~ret12#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~2#1 := isMethaneAlarm_#t~ret12#1;havoc isMethaneAlarm_#t~ret12#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; 678#L311 processEnvironment_#t~ret11#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret11#1;havoc processEnvironment_#t~ret11#1; 679#L271 assume 0 != processEnvironment_~tmp~3#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 727#L301 assume { :end_inline_deactivatePump } true; 657#L267-1 assume { :end_inline_processEnvironment } true; 658#L190-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#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~6#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~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 748#L443-1 __utac_acc__Specification3_spec__1_#t~ret28#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~6#1 := __utac_acc__Specification3_spec__1_#t~ret28#1;havoc __utac_acc__Specification3_spec__1_#t~ret28#1; 749#L512 assume 0 != __utac_acc__Specification3_spec__1_~tmp~6#1; 576#L518-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 750#L200 assume { :end_inline_timeShift } true; 624#L111-2 [2022-02-21 04:17:18,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:18,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:17:18,975 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:18,975 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157969567] [2022-02-21 04:17:18,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:18,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:18,997 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:19,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:19,018 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:19,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:19,018 INFO L85 PathProgramCache]: Analyzing trace with hash -49334945, now seen corresponding path program 1 times [2022-02-21 04:17:19,019 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:19,019 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459309317] [2022-02-21 04:17:19,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:19,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:19,042 INFO L290 TraceCheckUtils]: 0: Hoare triple {1361#true} assume !false; {1361#true} is VALID [2022-02-21 04:17:19,042 INFO L290 TraceCheckUtils]: 1: Hoare triple {1361#true} assume test_~splverifierCounter~0#1 < 4; {1361#true} is VALID [2022-02-21 04:17:19,043 INFO L290 TraceCheckUtils]: 2: Hoare triple {1361#true} test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {1361#true} is VALID [2022-02-21 04:17:19,043 INFO L290 TraceCheckUtils]: 3: Hoare triple {1361#true} assume !(0 != test_~tmp~0#1); {1361#true} is VALID [2022-02-21 04:17:19,043 INFO L290 TraceCheckUtils]: 4: Hoare triple {1361#true} test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {1361#true} is VALID [2022-02-21 04:17:19,043 INFO L290 TraceCheckUtils]: 5: Hoare triple {1361#true} assume !(0 != test_~tmp___0~0#1); {1361#true} is VALID [2022-02-21 04:17:19,043 INFO L290 TraceCheckUtils]: 6: Hoare triple {1361#true} test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; {1361#true} is VALID [2022-02-21 04:17:19,043 INFO L290 TraceCheckUtils]: 7: Hoare triple {1361#true} assume 0 != test_~tmp___2~0#1; {1361#true} is VALID [2022-02-21 04:17:19,043 INFO L290 TraceCheckUtils]: 8: Hoare triple {1361#true} assume { :begin_inline_timeShift } true; {1361#true} is VALID [2022-02-21 04:17:19,044 INFO L290 TraceCheckUtils]: 9: Hoare triple {1361#true} assume !(0 != ~pumpRunning~0); {1363#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:19,044 INFO L290 TraceCheckUtils]: 10: Hoare triple {1363#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; {1363#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:19,045 INFO L290 TraceCheckUtils]: 11: Hoare triple {1363#(= ~pumpRunning~0 0)} assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret12#1, isMethaneAlarm_~retValue_acc~2#1;havoc isMethaneAlarm_~retValue_acc~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; {1362#false} is VALID [2022-02-21 04:17:19,045 INFO L290 TraceCheckUtils]: 12: Hoare triple {1362#false} isMethaneAlarm_#t~ret12#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~2#1 := isMethaneAlarm_#t~ret12#1;havoc isMethaneAlarm_#t~ret12#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; {1362#false} is VALID [2022-02-21 04:17:19,045 INFO L290 TraceCheckUtils]: 13: Hoare triple {1362#false} processEnvironment_#t~ret11#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret11#1;havoc processEnvironment_#t~ret11#1; {1362#false} is VALID [2022-02-21 04:17:19,045 INFO L290 TraceCheckUtils]: 14: Hoare triple {1362#false} assume 0 != processEnvironment_~tmp~3#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; {1362#false} is VALID [2022-02-21 04:17:19,045 INFO L290 TraceCheckUtils]: 15: Hoare triple {1362#false} assume { :end_inline_deactivatePump } true; {1362#false} is VALID [2022-02-21 04:17:19,045 INFO L290 TraceCheckUtils]: 16: Hoare triple {1362#false} assume { :end_inline_processEnvironment } true; {1362#false} is VALID [2022-02-21 04:17:19,046 INFO L290 TraceCheckUtils]: 17: Hoare triple {1362#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#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~6#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~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; {1362#false} is VALID [2022-02-21 04:17:19,046 INFO L290 TraceCheckUtils]: 18: Hoare triple {1362#false} __utac_acc__Specification3_spec__1_#t~ret28#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~6#1 := __utac_acc__Specification3_spec__1_#t~ret28#1;havoc __utac_acc__Specification3_spec__1_#t~ret28#1; {1362#false} is VALID [2022-02-21 04:17:19,046 INFO L290 TraceCheckUtils]: 19: Hoare triple {1362#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~6#1; {1362#false} is VALID [2022-02-21 04:17:19,046 INFO L290 TraceCheckUtils]: 20: Hoare triple {1362#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {1362#false} is VALID [2022-02-21 04:17:19,046 INFO L290 TraceCheckUtils]: 21: Hoare triple {1362#false} assume { :end_inline_timeShift } true; {1362#false} is VALID [2022-02-21 04:17:19,046 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 04:17:19,046 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:19,046 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459309317] [2022-02-21 04:17:19,047 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459309317] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:19,047 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:19,047 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:17:19,047 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300673054] [2022-02-21 04:17:19,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:19,047 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:19,047 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:19,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:17:19,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:17:19,055 INFO L87 Difference]: Start difference. First operand 263 states and 354 transitions. cyclomatic complexity: 93 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 04:17:19,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:19,268 INFO L93 Difference]: Finished difference Result 279 states and 356 transitions. [2022-02-21 04:17:19,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:17:19,269 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 04:17:19,280 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 04:17:19,281 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 279 states and 356 transitions. [2022-02-21 04:17:19,286 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 192 [2022-02-21 04:17:19,294 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 279 states to 279 states and 356 transitions. [2022-02-21 04:17:19,294 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 279 [2022-02-21 04:17:19,295 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 279 [2022-02-21 04:17:19,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 279 states and 356 transitions. [2022-02-21 04:17:19,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:19,298 INFO L681 BuchiCegarLoop]: Abstraction has 279 states and 356 transitions. [2022-02-21 04:17:19,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states and 356 transitions. [2022-02-21 04:17:19,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2022-02-21 04:17:19,315 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:19,315 INFO L82 GeneralOperation]: Start isEquivalent. First operand 279 states and 356 transitions. Second operand has 279 states, 279 states have (on average 1.2759856630824373) internal successors, (356), 278 states have internal predecessors, (356), 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 04:17:19,322 INFO L74 IsIncluded]: Start isIncluded. First operand 279 states and 356 transitions. Second operand has 279 states, 279 states have (on average 1.2759856630824373) internal successors, (356), 278 states have internal predecessors, (356), 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 04:17:19,322 INFO L87 Difference]: Start difference. First operand 279 states and 356 transitions. Second operand has 279 states, 279 states have (on average 1.2759856630824373) internal successors, (356), 278 states have internal predecessors, (356), 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 04:17:19,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:19,327 INFO L93 Difference]: Finished difference Result 279 states and 356 transitions. [2022-02-21 04:17:19,327 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 356 transitions. [2022-02-21 04:17:19,327 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:19,327 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:19,328 INFO L74 IsIncluded]: Start isIncluded. First operand has 279 states, 279 states have (on average 1.2759856630824373) internal successors, (356), 278 states have internal predecessors, (356), 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 279 states and 356 transitions. [2022-02-21 04:17:19,329 INFO L87 Difference]: Start difference. First operand has 279 states, 279 states have (on average 1.2759856630824373) internal successors, (356), 278 states have internal predecessors, (356), 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 279 states and 356 transitions. [2022-02-21 04:17:19,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:19,333 INFO L93 Difference]: Finished difference Result 279 states and 356 transitions. [2022-02-21 04:17:19,334 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 356 transitions. [2022-02-21 04:17:19,334 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:19,334 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:19,334 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:19,334 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:19,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 279 states have (on average 1.2759856630824373) internal successors, (356), 278 states have internal predecessors, (356), 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 04:17:19,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 356 transitions. [2022-02-21 04:17:19,339 INFO L704 BuchiCegarLoop]: Abstraction has 279 states and 356 transitions. [2022-02-21 04:17:19,339 INFO L587 BuchiCegarLoop]: Abstraction has 279 states and 356 transitions. [2022-02-21 04:17:19,339 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:17:19,339 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 279 states and 356 transitions. [2022-02-21 04:17:19,340 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 192 [2022-02-21 04:17:19,340 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:19,341 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:19,341 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:19,341 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 04:17:19,341 INFO L791 eck$LassoCheckResult]: Stem: 1860#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;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1839#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 1804#L84 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1805#L77 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1796#L92 main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 1704#L985 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1685#L962 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#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; 1686#L111-2 [2022-02-21 04:17:19,343 INFO L793 eck$LassoCheckResult]: Loop: 1686#L111-2 assume !false; 1785#L112 assume test_~splverifierCounter~0#1 < 4; 1844#L113 test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1689#L121 assume !(0 != test_~tmp~0#1); 1690#L121-2 test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1718#L131 assume !(0 != test_~tmp___0~0#1); 1720#L131-2 test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 1721#L141 assume 0 != test_~tmp___2~0#1; 1723#L147-2 assume { :begin_inline_timeShift } true; 1700#L183 assume !(0 != ~pumpRunning~0); 1701#L183-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1829#L267 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret10#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2#1; 1738#L241-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 1739#L215-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1768#L483-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1769#L488-3 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 1819#L369-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1851#L369-11 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 1852#L375-3 processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1; 1694#L219-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1695#L207-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1706#L215-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1707#L241-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1712#L267-1 assume { :end_inline_processEnvironment } true; 1713#L190-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#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~6#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~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1789#L443-1 __utac_acc__Specification3_spec__1_#t~ret28#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~6#1 := __utac_acc__Specification3_spec__1_#t~ret28#1;havoc __utac_acc__Specification3_spec__1_#t~ret28#1; 1790#L512 assume 0 != __utac_acc__Specification3_spec__1_~tmp~6#1; 1650#L518-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1791#L200 assume { :end_inline_timeShift } true; 1686#L111-2 [2022-02-21 04:17:19,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:19,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:17:19,343 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:19,343 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023011240] [2022-02-21 04:17:19,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:19,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:19,352 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:19,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:19,359 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:19,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:19,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1895084414, now seen corresponding path program 1 times [2022-02-21 04:17:19,359 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:19,360 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903186193] [2022-02-21 04:17:19,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:19,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:19,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:19,390 INFO L290 TraceCheckUtils]: 0: Hoare triple {2485#true} assume !false; {2485#true} is VALID [2022-02-21 04:17:19,391 INFO L290 TraceCheckUtils]: 1: Hoare triple {2485#true} assume test_~splverifierCounter~0#1 < 4; {2485#true} is VALID [2022-02-21 04:17:19,391 INFO L290 TraceCheckUtils]: 2: Hoare triple {2485#true} test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {2485#true} is VALID [2022-02-21 04:17:19,391 INFO L290 TraceCheckUtils]: 3: Hoare triple {2485#true} assume !(0 != test_~tmp~0#1); {2485#true} is VALID [2022-02-21 04:17:19,391 INFO L290 TraceCheckUtils]: 4: Hoare triple {2485#true} test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {2485#true} is VALID [2022-02-21 04:17:19,393 INFO L290 TraceCheckUtils]: 5: Hoare triple {2485#true} assume !(0 != test_~tmp___0~0#1); {2485#true} is VALID [2022-02-21 04:17:19,394 INFO L290 TraceCheckUtils]: 6: Hoare triple {2485#true} test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; {2485#true} is VALID [2022-02-21 04:17:19,394 INFO L290 TraceCheckUtils]: 7: Hoare triple {2485#true} assume 0 != test_~tmp___2~0#1; {2485#true} is VALID [2022-02-21 04:17:19,394 INFO L290 TraceCheckUtils]: 8: Hoare triple {2485#true} assume { :begin_inline_timeShift } true; {2485#true} is VALID [2022-02-21 04:17:19,394 INFO L290 TraceCheckUtils]: 9: Hoare triple {2485#true} assume !(0 != ~pumpRunning~0); {2485#true} is VALID [2022-02-21 04:17:19,394 INFO L290 TraceCheckUtils]: 10: Hoare triple {2485#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; {2485#true} is VALID [2022-02-21 04:17:19,395 INFO L290 TraceCheckUtils]: 11: Hoare triple {2485#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret10#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2#1; {2485#true} is VALID [2022-02-21 04:17:19,395 INFO L290 TraceCheckUtils]: 12: Hoare triple {2485#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; {2485#true} is VALID [2022-02-21 04:17:19,395 INFO L290 TraceCheckUtils]: 13: Hoare triple {2485#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; {2485#true} is VALID [2022-02-21 04:17:19,397 INFO L290 TraceCheckUtils]: 14: Hoare triple {2485#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; {2487#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 0)} is VALID [2022-02-21 04:17:19,398 INFO L290 TraceCheckUtils]: 15: Hoare triple {2487#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 0)} isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; {2488#(= |ULTIMATE.start_isHighWaterLevel_~tmp~4#1| 0)} is VALID [2022-02-21 04:17:19,398 INFO L290 TraceCheckUtils]: 16: Hoare triple {2488#(= |ULTIMATE.start_isHighWaterLevel_~tmp~4#1| 0)} assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; {2486#false} is VALID [2022-02-21 04:17:19,398 INFO L290 TraceCheckUtils]: 17: Hoare triple {2486#false} isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; {2486#false} is VALID [2022-02-21 04:17:19,399 INFO L290 TraceCheckUtils]: 18: Hoare triple {2486#false} processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1; {2486#false} is VALID [2022-02-21 04:17:19,399 INFO L290 TraceCheckUtils]: 19: Hoare triple {2486#false} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {2486#false} is VALID [2022-02-21 04:17:19,399 INFO L290 TraceCheckUtils]: 20: Hoare triple {2486#false} assume { :end_inline_processEnvironment__wrappee__base } true; {2486#false} is VALID [2022-02-21 04:17:19,399 INFO L290 TraceCheckUtils]: 21: Hoare triple {2486#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {2486#false} is VALID [2022-02-21 04:17:19,399 INFO L290 TraceCheckUtils]: 22: Hoare triple {2486#false} assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; {2486#false} is VALID [2022-02-21 04:17:19,399 INFO L290 TraceCheckUtils]: 23: Hoare triple {2486#false} assume { :end_inline_processEnvironment } true; {2486#false} is VALID [2022-02-21 04:17:19,400 INFO L290 TraceCheckUtils]: 24: Hoare triple {2486#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#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~6#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~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; {2486#false} is VALID [2022-02-21 04:17:19,400 INFO L290 TraceCheckUtils]: 25: Hoare triple {2486#false} __utac_acc__Specification3_spec__1_#t~ret28#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~6#1 := __utac_acc__Specification3_spec__1_#t~ret28#1;havoc __utac_acc__Specification3_spec__1_#t~ret28#1; {2486#false} is VALID [2022-02-21 04:17:19,400 INFO L290 TraceCheckUtils]: 26: Hoare triple {2486#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~6#1; {2486#false} is VALID [2022-02-21 04:17:19,400 INFO L290 TraceCheckUtils]: 27: Hoare triple {2486#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {2486#false} is VALID [2022-02-21 04:17:19,400 INFO L290 TraceCheckUtils]: 28: Hoare triple {2486#false} assume { :end_inline_timeShift } true; {2486#false} is VALID [2022-02-21 04:17:19,401 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 04:17:19,402 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:19,402 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903186193] [2022-02-21 04:17:19,402 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903186193] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:19,402 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:19,402 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:17:19,402 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124107864] [2022-02-21 04:17:19,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:19,403 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:19,403 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:19,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-21 04:17:19,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-21 04:17:19,404 INFO L87 Difference]: Start difference. First operand 279 states and 356 transitions. cyclomatic complexity: 79 Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 04:17:20,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:20,011 INFO L93 Difference]: Finished difference Result 787 states and 982 transitions. [2022-02-21 04:17:20,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:17:20,012 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 04:17:20,033 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:20,034 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 787 states and 982 transitions. [2022-02-21 04:17:20,056 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 552 [2022-02-21 04:17:20,080 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 787 states to 787 states and 982 transitions. [2022-02-21 04:17:20,080 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 787 [2022-02-21 04:17:20,081 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 787 [2022-02-21 04:17:20,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 787 states and 982 transitions. [2022-02-21 04:17:20,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:20,081 INFO L681 BuchiCegarLoop]: Abstraction has 787 states and 982 transitions. [2022-02-21 04:17:20,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states and 982 transitions. [2022-02-21 04:17:20,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 297. [2022-02-21 04:17:20,088 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:20,088 INFO L82 GeneralOperation]: Start isEquivalent. First operand 787 states and 982 transitions. Second operand has 297 states, 297 states have (on average 1.2592592592592593) internal successors, (374), 296 states have internal predecessors, (374), 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 04:17:20,089 INFO L74 IsIncluded]: Start isIncluded. First operand 787 states and 982 transitions. Second operand has 297 states, 297 states have (on average 1.2592592592592593) internal successors, (374), 296 states have internal predecessors, (374), 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 04:17:20,089 INFO L87 Difference]: Start difference. First operand 787 states and 982 transitions. Second operand has 297 states, 297 states have (on average 1.2592592592592593) internal successors, (374), 296 states have internal predecessors, (374), 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 04:17:20,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:20,106 INFO L93 Difference]: Finished difference Result 787 states and 982 transitions. [2022-02-21 04:17:20,106 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 982 transitions. [2022-02-21 04:17:20,107 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:20,107 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:20,107 INFO L74 IsIncluded]: Start isIncluded. First operand has 297 states, 297 states have (on average 1.2592592592592593) internal successors, (374), 296 states have internal predecessors, (374), 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 787 states and 982 transitions. [2022-02-21 04:17:20,108 INFO L87 Difference]: Start difference. First operand has 297 states, 297 states have (on average 1.2592592592592593) internal successors, (374), 296 states have internal predecessors, (374), 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 787 states and 982 transitions. [2022-02-21 04:17:20,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:20,126 INFO L93 Difference]: Finished difference Result 787 states and 982 transitions. [2022-02-21 04:17:20,126 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 982 transitions. [2022-02-21 04:17:20,127 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:20,127 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:20,128 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:20,128 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:20,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 297 states have (on average 1.2592592592592593) internal successors, (374), 296 states have internal predecessors, (374), 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 04:17:20,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 374 transitions. [2022-02-21 04:17:20,132 INFO L704 BuchiCegarLoop]: Abstraction has 297 states and 374 transitions. [2022-02-21 04:17:20,132 INFO L587 BuchiCegarLoop]: Abstraction has 297 states and 374 transitions. [2022-02-21 04:17:20,132 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:17:20,132 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 297 states and 374 transitions. [2022-02-21 04:17:20,133 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 204 [2022-02-21 04:17:20,133 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:20,133 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:20,134 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:20,134 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 04:17:20,134 INFO L791 eck$LassoCheckResult]: Stem: 3511#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;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 3483#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 3444#L84 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3445#L77 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 3436#L92 main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 3341#L985 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 3321#L962 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#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; 3322#L111-2 [2022-02-21 04:17:20,134 INFO L793 eck$LassoCheckResult]: Loop: 3322#L111-2 assume !false; 3424#L112 assume test_~splverifierCounter~0#1 < 4; 3487#L113 test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 3325#L121 assume !(0 != test_~tmp~0#1); 3326#L121-2 test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 3355#L131 assume !(0 != test_~tmp___0~0#1); 3357#L131-2 test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 3358#L141 assume 0 != test_~tmp___2~0#1; 3360#L147-2 assume { :begin_inline_timeShift } true; 3333#L183 assume !(0 != ~pumpRunning~0); 3334#L183-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 3471#L267 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret10#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2#1; 3375#L241-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 3376#L215-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 3406#L483-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 3408#L488-3 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 3459#L369-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 3496#L369-11 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 3497#L375-3 processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1; 3327#L219-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3328#L207-6 assume { :end_inline_processEnvironment__wrappee__base } true; 3343#L215-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3344#L241-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 3349#L267-1 assume { :end_inline_processEnvironment } true; 3350#L190-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#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~6#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~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 3427#L443-1 __utac_acc__Specification3_spec__1_#t~ret28#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~6#1 := __utac_acc__Specification3_spec__1_#t~ret28#1;havoc __utac_acc__Specification3_spec__1_#t~ret28#1; 3428#L512 assume 0 != __utac_acc__Specification3_spec__1_~tmp~6#1; 3286#L518-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3429#L200 assume { :end_inline_timeShift } true; 3322#L111-2 [2022-02-21 04:17:20,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:20,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-02-21 04:17:20,136 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:20,136 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374996206] [2022-02-21 04:17:20,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:20,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:20,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:20,144 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:20,151 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:20,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:20,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1120019204, now seen corresponding path program 1 times [2022-02-21 04:17:20,151 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:20,151 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342384593] [2022-02-21 04:17:20,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:20,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:20,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:20,158 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:20,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:20,161 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:20,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:20,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1245753928, now seen corresponding path program 1 times [2022-02-21 04:17:20,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:20,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710529524] [2022-02-21 04:17:20,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:20,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:20,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:20,200 INFO L290 TraceCheckUtils]: 0: Hoare triple {5157#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;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,201 INFO L290 TraceCheckUtils]: 1: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,201 INFO L290 TraceCheckUtils]: 2: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,201 INFO L290 TraceCheckUtils]: 3: Hoare triple {5159#(= ~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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,202 INFO L290 TraceCheckUtils]: 4: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,202 INFO L290 TraceCheckUtils]: 5: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,202 INFO L290 TraceCheckUtils]: 6: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#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; {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,203 INFO L290 TraceCheckUtils]: 7: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} assume !false; {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,203 INFO L290 TraceCheckUtils]: 8: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} assume test_~splverifierCounter~0#1 < 4; {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,203 INFO L290 TraceCheckUtils]: 9: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,204 INFO L290 TraceCheckUtils]: 10: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp~0#1); {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,204 INFO L290 TraceCheckUtils]: 11: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,204 INFO L290 TraceCheckUtils]: 12: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___0~0#1); {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,205 INFO L290 TraceCheckUtils]: 13: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,205 INFO L290 TraceCheckUtils]: 14: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} assume 0 != test_~tmp___2~0#1; {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,205 INFO L290 TraceCheckUtils]: 15: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} assume { :begin_inline_timeShift } true; {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,206 INFO L290 TraceCheckUtils]: 16: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0); {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,206 INFO L290 TraceCheckUtils]: 17: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,206 INFO L290 TraceCheckUtils]: 18: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret10#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2#1; {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,207 INFO L290 TraceCheckUtils]: 19: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,207 INFO L290 TraceCheckUtils]: 20: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,207 INFO L290 TraceCheckUtils]: 21: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,208 INFO L290 TraceCheckUtils]: 22: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,208 INFO L290 TraceCheckUtils]: 23: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,208 INFO L290 TraceCheckUtils]: 24: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,208 INFO L290 TraceCheckUtils]: 25: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1; {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,209 INFO L290 TraceCheckUtils]: 26: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,209 INFO L290 TraceCheckUtils]: 27: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__base } true; {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,209 INFO L290 TraceCheckUtils]: 28: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,210 INFO L290 TraceCheckUtils]: 29: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,210 INFO L290 TraceCheckUtils]: 30: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment } true; {5159#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:20,210 INFO L290 TraceCheckUtils]: 31: Hoare triple {5159#(= ~methaneLevelCritical~0 0)} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#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~6#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~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; {5160#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} is VALID [2022-02-21 04:17:20,211 INFO L290 TraceCheckUtils]: 32: Hoare triple {5160#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} __utac_acc__Specification3_spec__1_#t~ret28#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~6#1 := __utac_acc__Specification3_spec__1_#t~ret28#1;havoc __utac_acc__Specification3_spec__1_#t~ret28#1; {5161#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~6#1| 0)} is VALID [2022-02-21 04:17:20,213 INFO L290 TraceCheckUtils]: 33: Hoare triple {5161#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~6#1| 0)} assume 0 != __utac_acc__Specification3_spec__1_~tmp~6#1; {5158#false} is VALID [2022-02-21 04:17:20,213 INFO L290 TraceCheckUtils]: 34: Hoare triple {5158#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {5158#false} is VALID [2022-02-21 04:17:20,213 INFO L290 TraceCheckUtils]: 35: Hoare triple {5158#false} assume { :end_inline_timeShift } true; {5158#false} is VALID [2022-02-21 04:17:20,214 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 04:17:20,214 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:20,214 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710529524] [2022-02-21 04:17:20,214 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710529524] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:20,214 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:20,214 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:17:20,214 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363573321] [2022-02-21 04:17:20,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:20,376 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:20,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:17:20,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:17:20,377 INFO L87 Difference]: Start difference. First operand 297 states and 374 transitions. cyclomatic complexity: 79 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 04:17:21,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:21,224 INFO L93 Difference]: Finished difference Result 1030 states and 1289 transitions. [2022-02-21 04:17:21,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:17:21,225 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 04:17:21,250 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 04:17:21,251 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1030 states and 1289 transitions. [2022-02-21 04:17:21,281 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 744 [2022-02-21 04:17:21,310 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1030 states to 1030 states and 1289 transitions. [2022-02-21 04:17:21,310 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1030 [2022-02-21 04:17:21,311 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1030 [2022-02-21 04:17:21,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1030 states and 1289 transitions. [2022-02-21 04:17:21,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:21,312 INFO L681 BuchiCegarLoop]: Abstraction has 1030 states and 1289 transitions. [2022-02-21 04:17:21,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states and 1289 transitions. [2022-02-21 04:17:21,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 587. [2022-02-21 04:17:21,320 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:21,321 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1030 states and 1289 transitions. Second operand has 587 states, 587 states have (on average 1.2487223168654173) internal successors, (733), 586 states have internal predecessors, (733), 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 04:17:21,321 INFO L74 IsIncluded]: Start isIncluded. First operand 1030 states and 1289 transitions. Second operand has 587 states, 587 states have (on average 1.2487223168654173) internal successors, (733), 586 states have internal predecessors, (733), 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 04:17:21,322 INFO L87 Difference]: Start difference. First operand 1030 states and 1289 transitions. Second operand has 587 states, 587 states have (on average 1.2487223168654173) internal successors, (733), 586 states have internal predecessors, (733), 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 04:17:21,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:21,349 INFO L93 Difference]: Finished difference Result 1030 states and 1289 transitions. [2022-02-21 04:17:21,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1289 transitions. [2022-02-21 04:17:21,350 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:21,351 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:21,352 INFO L74 IsIncluded]: Start isIncluded. First operand has 587 states, 587 states have (on average 1.2487223168654173) internal successors, (733), 586 states have internal predecessors, (733), 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 1030 states and 1289 transitions. [2022-02-21 04:17:21,352 INFO L87 Difference]: Start difference. First operand has 587 states, 587 states have (on average 1.2487223168654173) internal successors, (733), 586 states have internal predecessors, (733), 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 1030 states and 1289 transitions. [2022-02-21 04:17:21,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:21,388 INFO L93 Difference]: Finished difference Result 1030 states and 1289 transitions. [2022-02-21 04:17:21,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1289 transitions. [2022-02-21 04:17:21,389 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:21,389 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:21,389 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:21,389 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:21,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 587 states have (on average 1.2487223168654173) internal successors, (733), 586 states have internal predecessors, (733), 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 04:17:21,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 733 transitions. [2022-02-21 04:17:21,406 INFO L704 BuchiCegarLoop]: Abstraction has 587 states and 733 transitions. [2022-02-21 04:17:21,406 INFO L587 BuchiCegarLoop]: Abstraction has 587 states and 733 transitions. [2022-02-21 04:17:21,406 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2022-02-21 04:17:21,406 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 587 states and 733 transitions. [2022-02-21 04:17:21,408 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 408 [2022-02-21 04:17:21,408 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:21,408 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:21,409 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:21,409 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 04:17:21,409 INFO L791 eck$LassoCheckResult]: Stem: 6454#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;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 6415#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 6376#L84 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 6377#L77 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 6367#L92 main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 6262#L985 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 6241#L962 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#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; 6242#L111-2 [2022-02-21 04:17:21,410 INFO L793 eck$LassoCheckResult]: Loop: 6242#L111-2 assume !false; 6354#L112 assume test_~splverifierCounter~0#1 < 4; 6423#L113 test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 6245#L121 assume !(0 != test_~tmp~0#1); 6246#L121-2 test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 6276#L131 assume !(0 != test_~tmp___0~0#1); 6278#L131-2 test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 6279#L141 assume 0 != test_~tmp___2~0#1; 6281#L147-2 assume { :begin_inline_timeShift } true; 6253#L183 assume !(0 != ~pumpRunning~0); 6254#L183-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 6402#L267 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret10#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2#1; 6297#L241-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 6298#L215-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 6445#L483-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 6629#L488-3 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 6545#L369-9 assume !(0 != isHighWaterLevel_~tmp~4#1);isHighWaterLevel_~tmp___0~1#1 := 1; 6542#L369-11 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 6540#L375-3 processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1; 6537#L219-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 6344#L207-6 assume { :end_inline_processEnvironment__wrappee__base } true; 6345#L215-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 6321#L241-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 6270#L267-1 assume { :end_inline_processEnvironment } true; 6271#L190-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#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~6#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~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 6358#L443-1 __utac_acc__Specification3_spec__1_#t~ret28#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~6#1 := __utac_acc__Specification3_spec__1_#t~ret28#1;havoc __utac_acc__Specification3_spec__1_#t~ret28#1; 6359#L512 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~6#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 6396#L475 __utac_acc__Specification3_spec__1_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~3#1 := __utac_acc__Specification3_spec__1_#t~ret29#1;havoc __utac_acc__Specification3_spec__1_#t~ret29#1; 6206#L518 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3#1); 6207#L518-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 6360#L200 assume { :end_inline_timeShift } true; 6242#L111-2 [2022-02-21 04:17:21,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:21,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2022-02-21 04:17:21,410 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:21,411 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964589271] [2022-02-21 04:17:21,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:21,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:21,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:21,434 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:21,440 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:21,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:21,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1168618029, now seen corresponding path program 1 times [2022-02-21 04:17:21,440 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:21,441 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645320422] [2022-02-21 04:17:21,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:21,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:21,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:21,481 INFO L290 TraceCheckUtils]: 0: Hoare triple {8852#true} assume !false; {8852#true} is VALID [2022-02-21 04:17:21,481 INFO L290 TraceCheckUtils]: 1: Hoare triple {8852#true} assume test_~splverifierCounter~0#1 < 4; {8852#true} is VALID [2022-02-21 04:17:21,481 INFO L290 TraceCheckUtils]: 2: Hoare triple {8852#true} test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {8852#true} is VALID [2022-02-21 04:17:21,481 INFO L290 TraceCheckUtils]: 3: Hoare triple {8852#true} assume !(0 != test_~tmp~0#1); {8852#true} is VALID [2022-02-21 04:17:21,482 INFO L290 TraceCheckUtils]: 4: Hoare triple {8852#true} test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {8852#true} is VALID [2022-02-21 04:17:21,482 INFO L290 TraceCheckUtils]: 5: Hoare triple {8852#true} assume !(0 != test_~tmp___0~0#1); {8852#true} is VALID [2022-02-21 04:17:21,482 INFO L290 TraceCheckUtils]: 6: Hoare triple {8852#true} test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; {8852#true} is VALID [2022-02-21 04:17:21,482 INFO L290 TraceCheckUtils]: 7: Hoare triple {8852#true} assume 0 != test_~tmp___2~0#1; {8852#true} is VALID [2022-02-21 04:17:21,483 INFO L290 TraceCheckUtils]: 8: Hoare triple {8852#true} assume { :begin_inline_timeShift } true; {8852#true} is VALID [2022-02-21 04:17:21,483 INFO L290 TraceCheckUtils]: 9: Hoare triple {8852#true} assume !(0 != ~pumpRunning~0); {8852#true} is VALID [2022-02-21 04:17:21,483 INFO L290 TraceCheckUtils]: 10: Hoare triple {8852#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; {8852#true} is VALID [2022-02-21 04:17:21,484 INFO L290 TraceCheckUtils]: 11: Hoare triple {8852#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret10#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2#1; {8852#true} is VALID [2022-02-21 04:17:21,484 INFO L290 TraceCheckUtils]: 12: Hoare triple {8852#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; {8852#true} is VALID [2022-02-21 04:17:21,489 INFO L290 TraceCheckUtils]: 13: Hoare triple {8852#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; {8852#true} is VALID [2022-02-21 04:17:21,489 INFO L290 TraceCheckUtils]: 14: Hoare triple {8852#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; {8852#true} is VALID [2022-02-21 04:17:21,490 INFO L290 TraceCheckUtils]: 15: Hoare triple {8852#true} isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; {8852#true} is VALID [2022-02-21 04:17:21,490 INFO L290 TraceCheckUtils]: 16: Hoare triple {8852#true} assume !(0 != isHighWaterLevel_~tmp~4#1);isHighWaterLevel_~tmp___0~1#1 := 1; {8854#(not (= |ULTIMATE.start_isHighWaterLevel_~tmp___0~1#1| 0))} is VALID [2022-02-21 04:17:21,491 INFO L290 TraceCheckUtils]: 17: Hoare triple {8854#(not (= |ULTIMATE.start_isHighWaterLevel_~tmp___0~1#1| 0))} isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; {8855#(not (= |ULTIMATE.start_isHighWaterLevel_#res#1| 0))} is VALID [2022-02-21 04:17:21,491 INFO L290 TraceCheckUtils]: 18: Hoare triple {8855#(not (= |ULTIMATE.start_isHighWaterLevel_#res#1| 0))} processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1; {8856#(not (= |ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1#1| 0))} is VALID [2022-02-21 04:17:21,491 INFO L290 TraceCheckUtils]: 19: Hoare triple {8856#(not (= |ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1#1| 0))} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {8853#false} is VALID [2022-02-21 04:17:21,492 INFO L290 TraceCheckUtils]: 20: Hoare triple {8853#false} assume { :end_inline_processEnvironment__wrappee__base } true; {8853#false} is VALID [2022-02-21 04:17:21,492 INFO L290 TraceCheckUtils]: 21: Hoare triple {8853#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {8853#false} is VALID [2022-02-21 04:17:21,492 INFO L290 TraceCheckUtils]: 22: Hoare triple {8853#false} assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; {8853#false} is VALID [2022-02-21 04:17:21,492 INFO L290 TraceCheckUtils]: 23: Hoare triple {8853#false} assume { :end_inline_processEnvironment } true; {8853#false} is VALID [2022-02-21 04:17:21,492 INFO L290 TraceCheckUtils]: 24: Hoare triple {8853#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#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~6#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~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; {8853#false} is VALID [2022-02-21 04:17:21,495 INFO L290 TraceCheckUtils]: 25: Hoare triple {8853#false} __utac_acc__Specification3_spec__1_#t~ret28#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~6#1 := __utac_acc__Specification3_spec__1_#t~ret28#1;havoc __utac_acc__Specification3_spec__1_#t~ret28#1; {8853#false} is VALID [2022-02-21 04:17:21,496 INFO L290 TraceCheckUtils]: 26: Hoare triple {8853#false} assume !(0 != __utac_acc__Specification3_spec__1_~tmp~6#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; {8853#false} is VALID [2022-02-21 04:17:21,496 INFO L290 TraceCheckUtils]: 27: Hoare triple {8853#false} __utac_acc__Specification3_spec__1_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~3#1 := __utac_acc__Specification3_spec__1_#t~ret29#1;havoc __utac_acc__Specification3_spec__1_#t~ret29#1; {8853#false} is VALID [2022-02-21 04:17:21,496 INFO L290 TraceCheckUtils]: 28: Hoare triple {8853#false} assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3#1); {8853#false} is VALID [2022-02-21 04:17:21,496 INFO L290 TraceCheckUtils]: 29: Hoare triple {8853#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {8853#false} is VALID [2022-02-21 04:17:21,496 INFO L290 TraceCheckUtils]: 30: Hoare triple {8853#false} assume { :end_inline_timeShift } true; {8853#false} is VALID [2022-02-21 04:17:21,496 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 04:17:21,497 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:21,497 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645320422] [2022-02-21 04:17:21,497 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645320422] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:21,497 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:21,497 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:17:21,497 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929534876] [2022-02-21 04:17:21,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:21,498 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:21,498 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:21,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:17:21,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:17:21,498 INFO L87 Difference]: Start difference. First operand 587 states and 733 transitions. cyclomatic complexity: 149 Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 04:17:22,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:22,305 INFO L93 Difference]: Finished difference Result 1703 states and 2113 transitions. [2022-02-21 04:17:22,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:17:22,306 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 04:17:22,330 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:22,331 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1703 states and 2113 transitions. [2022-02-21 04:17:22,397 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 1216 [2022-02-21 04:17:22,462 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1703 states to 1703 states and 2113 transitions. [2022-02-21 04:17:22,463 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1703 [2022-02-21 04:17:22,463 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1703 [2022-02-21 04:17:22,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1703 states and 2113 transitions. [2022-02-21 04:17:22,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:22,465 INFO L681 BuchiCegarLoop]: Abstraction has 1703 states and 2113 transitions. [2022-02-21 04:17:22,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states and 2113 transitions. [2022-02-21 04:17:22,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 641. [2022-02-21 04:17:22,474 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:22,475 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1703 states and 2113 transitions. Second operand has 641 states, 641 states have (on average 1.2277691107644306) internal successors, (787), 640 states have internal predecessors, (787), 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 04:17:22,476 INFO L74 IsIncluded]: Start isIncluded. First operand 1703 states and 2113 transitions. Second operand has 641 states, 641 states have (on average 1.2277691107644306) internal successors, (787), 640 states have internal predecessors, (787), 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 04:17:22,477 INFO L87 Difference]: Start difference. First operand 1703 states and 2113 transitions. Second operand has 641 states, 641 states have (on average 1.2277691107644306) internal successors, (787), 640 states have internal predecessors, (787), 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 04:17:22,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:22,541 INFO L93 Difference]: Finished difference Result 1703 states and 2113 transitions. [2022-02-21 04:17:22,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1703 states and 2113 transitions. [2022-02-21 04:17:22,543 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:22,543 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:22,544 INFO L74 IsIncluded]: Start isIncluded. First operand has 641 states, 641 states have (on average 1.2277691107644306) internal successors, (787), 640 states have internal predecessors, (787), 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 1703 states and 2113 transitions. [2022-02-21 04:17:22,545 INFO L87 Difference]: Start difference. First operand has 641 states, 641 states have (on average 1.2277691107644306) internal successors, (787), 640 states have internal predecessors, (787), 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 1703 states and 2113 transitions. [2022-02-21 04:17:22,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:22,610 INFO L93 Difference]: Finished difference Result 1703 states and 2113 transitions. [2022-02-21 04:17:22,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1703 states and 2113 transitions. [2022-02-21 04:17:22,612 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:22,612 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:22,612 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:22,613 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:22,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 641 states have (on average 1.2277691107644306) internal successors, (787), 640 states have internal predecessors, (787), 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 04:17:22,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 787 transitions. [2022-02-21 04:17:22,625 INFO L704 BuchiCegarLoop]: Abstraction has 641 states and 787 transitions. [2022-02-21 04:17:22,625 INFO L587 BuchiCegarLoop]: Abstraction has 641 states and 787 transitions. [2022-02-21 04:17:22,625 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2022-02-21 04:17:22,625 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 641 states and 787 transitions. [2022-02-21 04:17:22,627 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 444 [2022-02-21 04:17:22,627 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:22,627 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:22,628 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:22,628 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 04:17:22,628 INFO L791 eck$LassoCheckResult]: Stem: 10880#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;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 10806#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 10743#L84 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 10744#L77 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 10733#L92 main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 10627#L985 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 10607#L962 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#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; 10608#L111-2 [2022-02-21 04:17:22,628 INFO L793 eck$LassoCheckResult]: Loop: 10608#L111-2 assume !false; 10719#L112 assume test_~splverifierCounter~0#1 < 4; 10996#L113 test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 11003#L121 assume !(0 != test_~tmp~0#1); 11000#L121-2 test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 10998#L131 assume !(0 != test_~tmp___0~0#1); 10716#L131-2 test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 10646#L141 assume 0 != test_~tmp___2~0#1; 10648#L147-2 assume { :begin_inline_timeShift } true; 10618#L183 assume !(0 != ~pumpRunning~0); 10619#L183-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 10789#L267 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret10#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2#1; 10661#L241-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 10662#L215-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 11118#L483-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 11117#L488-3 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 11116#L369-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 10832#L369-11 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 10833#L375-3 processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1; 10897#L219-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 10898#L207-6 assume { :end_inline_processEnvironment__wrappee__base } true; 11203#L215-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 11201#L241-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 11199#L267-1 assume { :end_inline_processEnvironment } true; 11198#L190-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#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~6#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~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 10723#L443-1 __utac_acc__Specification3_spec__1_#t~ret28#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~6#1 := __utac_acc__Specification3_spec__1_#t~ret28#1;havoc __utac_acc__Specification3_spec__1_#t~ret28#1; 10724#L512 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~6#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 10676#L475 __utac_acc__Specification3_spec__1_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~3#1 := __utac_acc__Specification3_spec__1_#t~ret29#1;havoc __utac_acc__Specification3_spec__1_#t~ret29#1; 10572#L518 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3#1); 10573#L518-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 10725#L200 assume { :end_inline_timeShift } true; 10608#L111-2 [2022-02-21 04:17:22,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:22,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 6 times [2022-02-21 04:17:22,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:22,629 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790594828] [2022-02-21 04:17:22,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:22,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:22,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:22,635 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:22,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:22,641 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:22,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:22,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1699593551, now seen corresponding path program 1 times [2022-02-21 04:17:22,642 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:22,642 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758288988] [2022-02-21 04:17:22,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:22,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:22,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:22,647 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:22,652 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:22,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:22,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1127608075, now seen corresponding path program 1 times [2022-02-21 04:17:22,652 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:22,652 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354676519] [2022-02-21 04:17:22,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:22,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:22,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:22,661 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:22,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:22,670 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:25,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:17:25 BoogieIcfgContainer [2022-02-21 04:17:25,095 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:17:25,095 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:17:25,095 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:17:25,095 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:17:25,096 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:17" (3/4) ... [2022-02-21 04:17:25,097 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:17:25,142 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:17:25,142 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:17:25,143 INFO L158 Benchmark]: Toolchain (without parser) took 8681.35ms. Allocated memory was 104.9MB in the beginning and 195.0MB in the end (delta: 90.2MB). Free memory was 75.7MB in the beginning and 111.0MB in the end (delta: -35.3MB). Peak memory consumption was 56.0MB. Max. memory is 16.1GB. [2022-02-21 04:17:25,144 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 104.9MB. Free memory was 60.7MB in the beginning and 60.6MB in the end (delta: 51.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:17:25,144 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.83ms. Allocated memory is still 104.9MB. Free memory was 75.4MB in the beginning and 68.7MB in the end (delta: 6.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:17:25,144 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.71ms. Allocated memory is still 104.9MB. Free memory was 68.7MB in the beginning and 62.8MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:17:25,145 INFO L158 Benchmark]: Boogie Preprocessor took 49.77ms. Allocated memory is still 104.9MB. Free memory was 62.8MB in the beginning and 59.3MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:25,145 INFO L158 Benchmark]: RCFGBuilder took 786.67ms. Allocated memory was 104.9MB in the beginning and 134.2MB in the end (delta: 29.4MB). Free memory was 59.3MB in the beginning and 90.8MB in the end (delta: -31.5MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2022-02-21 04:17:25,145 INFO L158 Benchmark]: BuchiAutomizer took 7355.24ms. Allocated memory was 134.2MB in the beginning and 195.0MB in the end (delta: 60.8MB). Free memory was 90.2MB in the beginning and 114.1MB in the end (delta: -24.0MB). Peak memory consumption was 98.3MB. Max. memory is 16.1GB. [2022-02-21 04:17:25,147 INFO L158 Benchmark]: Witness Printer took 47.20ms. Allocated memory is still 195.0MB. Free memory was 114.1MB in the beginning and 111.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:25,148 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 0.18ms. Allocated memory is still 104.9MB. Free memory was 60.7MB in the beginning and 60.6MB in the end (delta: 51.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 357.83ms. Allocated memory is still 104.9MB. Free memory was 75.4MB in the beginning and 68.7MB in the end (delta: 6.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.71ms. Allocated memory is still 104.9MB. Free memory was 68.7MB in the beginning and 62.8MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.77ms. Allocated memory is still 104.9MB. Free memory was 62.8MB in the beginning and 59.3MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 786.67ms. Allocated memory was 104.9MB in the beginning and 134.2MB in the end (delta: 29.4MB). Free memory was 59.3MB in the beginning and 90.8MB in the end (delta: -31.5MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 7355.24ms. Allocated memory was 134.2MB in the beginning and 195.0MB in the end (delta: 60.8MB). Free memory was 90.2MB in the beginning and 114.1MB in the end (delta: -24.0MB). Peak memory consumption was 98.3MB. Max. memory is 16.1GB. * Witness Printer took 47.20ms. Allocated memory is still 195.0MB. Free memory was 114.1MB in the beginning and 111.0MB in the end (delta: 3.2MB). 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 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.5 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 7.2s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 3.3s. Construction of modules took 0.2s. Büchi inclusion checks took 2.8s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 1995 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.2s Buchi closure took 0.0s. Biggest automaton had 641 states and ocurred in iteration 5. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4136 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4136 mSDsluCounter, 4984 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3026 mSDsCounter, 134 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 343 IncrementalHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 134 mSolverCounterUnsat, 1958 mSDtfsCounter, 343 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 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: 111]: 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@2ee06b86=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, tmp___0=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5807f36=0, NULL=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2dbe398b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14229f30=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44c03e95=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2dac888a=0, methaneLevelCritical=0, \result=0, retValue_acc=0, retValue_acc=1, \result=1, \result=1, tmp=0, retValue_acc=1, tmp=1, tmp=1, tmp___0=1, tmp___2=29, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b45962e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d44af2b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d0a6859=0, tmp=0, cleanupTimeShifts=4, \result=0, tmp=0, head=0, \result=1, retValue_acc=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58602d00=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36ab1ce0=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6cc4623=0, tmp=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 111]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L175] int pumpRunning = 0; [L176] int systemActive = 1; [L400] int waterLevel = 1; [L401] int methaneLevelCritical = 0; [L706] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L903] int cleanupTimeShifts = 4; [L976] int retValue_acc ; [L977] int tmp ; [L981] FCALL select_helpers() [L982] FCALL select_features() [L983] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); [L983] RET, EXPR valid_product() [L983] tmp = valid_product() [L985] COND TRUE \read(tmp) [L987] FCALL setup() [L988] CALL runTest() [L970] CALL test() [L102] int splverifierCounter ; [L103] int tmp ; [L104] int tmp___0 ; [L105] int tmp___1 ; [L106] int tmp___2 ; [L109] splverifierCounter = 0 Loop: [L111] COND TRUE 1 [L113] COND TRUE splverifierCounter < 4 [L119] tmp = __VERIFIER_nondet_int() [L121] COND FALSE !(\read(tmp)) [L129] tmp___0 = __VERIFIER_nondet_int() [L131] COND FALSE !(\read(tmp___0)) [L139] tmp___2 = __VERIFIER_nondet_int() [L141] COND TRUE \read(tmp___2) [L154] CALL timeShift() [L183] COND FALSE !(\read(pumpRunning)) [L190] COND TRUE \read(systemActive) [L192] CALL processEnvironment() [L264] int tmp ; [L267] COND FALSE !(\read(pumpRunning)) [L282] CALL processEnvironment__wrappee__lowWaterSensor() [L238] int tmp ; [L241] COND FALSE !(\read(pumpRunning)) [L256] CALL processEnvironment__wrappee__highWaterSensor() [L212] int tmp ; [L215] COND TRUE ! pumpRunning [L217] CALL, EXPR isHighWaterLevel() [L361] int retValue_acc ; [L362] int tmp ; [L363] int tmp___0 ; [L367] CALL, EXPR isHighWaterSensorDry() [L480] int retValue_acc ; [L483] COND TRUE waterLevel < 2 [L484] retValue_acc = 1 [L485] return (retValue_acc); [L367] RET, EXPR isHighWaterSensorDry() [L367] tmp = isHighWaterSensorDry() [L369] COND TRUE \read(tmp) [L370] tmp___0 = 0 [L374] retValue_acc = tmp___0 [L375] return (retValue_acc); [L217] RET, EXPR isHighWaterLevel() [L217] tmp = isHighWaterLevel() [L219] COND FALSE !(\read(tmp)) [L225] FCALL processEnvironment__wrappee__base() [L256] RET processEnvironment__wrappee__highWaterSensor() [L282] RET processEnvironment__wrappee__lowWaterSensor() [L192] RET processEnvironment() [L198] CALL __utac_acc__Specification3_spec__1() [L504] int tmp ; [L505] int tmp___0 ; [L506] int tmp___1 ; [L510] CALL, EXPR isMethaneLevelCritical() [L439] int retValue_acc ; [L442] retValue_acc = methaneLevelCritical [L443] return (retValue_acc); [L510] RET, EXPR isMethaneLevelCritical() [L510] tmp = isMethaneLevelCritical() [L512] COND FALSE !(\read(tmp)) [L516] CALL, EXPR getWaterLevel() [L471] int retValue_acc ; [L474] retValue_acc = waterLevel [L475] return (retValue_acc); [L516] RET, EXPR getWaterLevel() [L516] tmp___0 = getWaterLevel() [L518] COND FALSE !(tmp___0 == 2) [L198] RET __utac_acc__Specification3_spec__1() [L154] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:17:25,219 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)