./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product41.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_product41.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 0cfed743c16ce3c8683c42b92f2e032d4ce7b489a9d3a5e140ec6101c472b3cb --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:17:04,720 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:17:04,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:17:04,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:17:04,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:17:04,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:17:04,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:17:04,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:17:04,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:17:04,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:17:04,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:17:04,756 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:17:04,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:17:04,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:17:04,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:17:04,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:17:04,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:17:04,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:17:04,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:17:04,770 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:17:04,771 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:17:04,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:17:04,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:17:04,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:17:04,778 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:17:04,779 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:17:04,779 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:17:04,780 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:17:04,781 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:17:04,782 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:17:04,782 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:17:04,783 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:17:04,784 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:17:04,785 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:17:04,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:17:04,786 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:17:04,786 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:17:04,787 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:17:04,787 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:17:04,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:17:04,788 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:17:04,789 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:17:04,815 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:17:04,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:17:04,816 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:17:04,816 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:17:04,817 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:17:04,817 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:17:04,817 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:17:04,817 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:17:04,817 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:17:04,818 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:17:04,818 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:17:04,818 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:17:04,818 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:17:04,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:17:04,818 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:17:04,819 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:17:04,819 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:17:04,819 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:17:04,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:17:04,819 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:17:04,819 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:17:04,819 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:17:04,820 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:17:04,820 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:17:04,820 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:17:04,820 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:17:04,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:17:04,820 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:17:04,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:17:04,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:17:04,821 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:17:04,822 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:17:04,822 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cfed743c16ce3c8683c42b92f2e032d4ce7b489a9d3a5e140ec6101c472b3cb [2022-02-21 04:17:04,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:17:04,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:17:04,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:17:04,996 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:17:04,997 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:17:04,998 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c [2022-02-21 04:17:05,070 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf54f160c/de90c16efd4c43a8b82e298c8fb79c55/FLAG34664afb3 [2022-02-21 04:17:05,388 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:17:05,388 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c [2022-02-21 04:17:05,400 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf54f160c/de90c16efd4c43a8b82e298c8fb79c55/FLAG34664afb3 [2022-02-21 04:17:05,786 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf54f160c/de90c16efd4c43a8b82e298c8fb79c55 [2022-02-21 04:17:05,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:17:05,789 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:17:05,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:05,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:17:05,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:17:05,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:05" (1/1) ... [2022-02-21 04:17:05,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ab0ddaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:05, skipping insertion in model container [2022-02-21 04:17:05,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:05" (1/1) ... [2022-02-21 04:17:05,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:17:05,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:17:06,081 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_product41.cil.c[17978,17991] [2022-02-21 04:17:06,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:06,098 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:17:06,196 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_product41.cil.c[17978,17991] [2022-02-21 04:17:06,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:06,210 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:17:06,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:06 WrapperNode [2022-02-21 04:17:06,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:06,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:06,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:17:06,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:17:06,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:06" (1/1) ... [2022-02-21 04:17:06,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:06" (1/1) ... [2022-02-21 04:17:06,281 INFO L137 Inliner]: procedures = 53, calls = 152, calls flagged for inlining = 49, calls inlined = 59, statements flattened = 485 [2022-02-21 04:17:06,286 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:06,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:17:06,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:17:06,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:17:06,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:06" (1/1) ... [2022-02-21 04:17:06,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:06" (1/1) ... [2022-02-21 04:17:06,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:06" (1/1) ... [2022-02-21 04:17:06,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:06" (1/1) ... [2022-02-21 04:17:06,315 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:06" (1/1) ... [2022-02-21 04:17:06,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:06" (1/1) ... [2022-02-21 04:17:06,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:06" (1/1) ... [2022-02-21 04:17:06,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:17:06,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:17:06,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:17:06,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:17:06,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:06" (1/1) ... [2022-02-21 04:17:06,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:17:06,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:17:06,364 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 04:17:06,372 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 04:17:06,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:17:06,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:17:06,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:17:06,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:17:06,452 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:17:06,453 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:17:06,809 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:17:06,815 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:17:06,815 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:17:06,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:06 BoogieIcfgContainer [2022-02-21 04:17:06,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:17:06,817 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:17:06,817 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:17:06,825 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:17:06,825 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:06,826 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:17:05" (1/3) ... [2022-02-21 04:17:06,826 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@42bc66f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:06, skipping insertion in model container [2022-02-21 04:17:06,826 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:06,827 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:06" (2/3) ... [2022-02-21 04:17:06,827 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@42bc66f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:06, skipping insertion in model container [2022-02-21 04:17:06,827 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:06,827 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:06" (3/3) ... [2022-02-21 04:17:06,828 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product41.cil.c [2022-02-21 04:17:06,868 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:17:06,868 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:17:06,868 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:17:06,868 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:17:06,868 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:17:06,868 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:17:06,868 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:17:06,869 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:17:06,885 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 123 states, 122 states have (on average 1.3770491803278688) internal successors, (168), 122 states have internal predecessors, (168), 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 04:17:06,914 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 78 [2022-02-21 04:17:06,914 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:06,914 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:06,918 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:06,919 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 04:17:06,919 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:17:06,920 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 123 states, 122 states have (on average 1.3770491803278688) internal successors, (168), 122 states have internal predecessors, (168), 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 04:17:06,929 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 78 [2022-02-21 04:17:06,937 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:06,937 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:06,937 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:06,937 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 04:17:06,941 INFO L791 eck$LassoCheckResult]: Stem: 111#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 37#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 57#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 114#L68true 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; 29#L83true main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 58#L548true assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 3#L525true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 68#L281-2true [2022-02-21 04:17:06,942 INFO L793 eck$LassoCheckResult]: Loop: 68#L281-2true assume !false; 6#L282true assume test_~splverifierCounter~0#1 < 4; 89#L283true test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 72#L291true assume !(0 != test_~tmp~3#1); 71#L291-2true test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 80#L301true assume !(0 != test_~tmp___0~1#1); 31#L301-2true test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 47#L311true assume 0 != test_~tmp___2~0#1; 44#L317-2true assume { :begin_inline_timeShift } true; 21#L105true assume !(0 != ~pumpRunning~0); 38#L105-2true assume !(0 != ~systemActive~0); 62#L112-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; 26#L415-1true __utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; 107#L347true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 113#L353-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 48#L122true assume { :end_inline_timeShift } true; 68#L281-2true [2022-02-21 04:17:06,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:06,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:17:06,952 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:06,952 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525039207] [2022-02-21 04:17:06,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:06,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:07,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:07,052 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:07,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:07,097 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:07,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:07,100 INFO L85 PathProgramCache]: Analyzing trace with hash -325980650, now seen corresponding path program 1 times [2022-02-21 04:17:07,100 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:07,101 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987730759] [2022-02-21 04:17:07,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:07,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:07,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:07,126 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:07,136 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:07,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:07,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1029438426, now seen corresponding path program 1 times [2022-02-21 04:17:07,142 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:07,143 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080021800] [2022-02-21 04:17:07,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:07,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:07,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:07,278 INFO L290 TraceCheckUtils]: 0: Hoare triple {131#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {133#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:07,285 INFO L290 TraceCheckUtils]: 1: Hoare triple {133#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; {133#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:07,285 INFO L290 TraceCheckUtils]: 2: Hoare triple {133#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {133#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:07,286 INFO L290 TraceCheckUtils]: 3: Hoare triple {133#(= 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; {134#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:17:07,286 INFO L290 TraceCheckUtils]: 4: Hoare triple {134#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret29#1;havoc main_#t~ret29#1; {135#(= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0)} is VALID [2022-02-21 04:17:07,287 INFO L290 TraceCheckUtils]: 5: Hoare triple {135#(= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0)} assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; {136#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:07,287 INFO L290 TraceCheckUtils]: 6: Hoare triple {136#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {136#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:07,288 INFO L290 TraceCheckUtils]: 7: Hoare triple {136#(not (= 0 ~systemActive~0))} assume !false; {136#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:07,288 INFO L290 TraceCheckUtils]: 8: Hoare triple {136#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {136#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:07,289 INFO L290 TraceCheckUtils]: 9: Hoare triple {136#(not (= 0 ~systemActive~0))} test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; {136#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:07,289 INFO L290 TraceCheckUtils]: 10: Hoare triple {136#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~3#1); {136#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:07,290 INFO L290 TraceCheckUtils]: 11: Hoare triple {136#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; {136#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:07,290 INFO L290 TraceCheckUtils]: 12: Hoare triple {136#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {136#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:07,290 INFO L290 TraceCheckUtils]: 13: Hoare triple {136#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {136#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:07,291 INFO L290 TraceCheckUtils]: 14: Hoare triple {136#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {136#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:07,291 INFO L290 TraceCheckUtils]: 15: Hoare triple {136#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {136#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:07,292 INFO L290 TraceCheckUtils]: 16: Hoare triple {136#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {136#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:07,292 INFO L290 TraceCheckUtils]: 17: Hoare triple {136#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {132#false} is VALID [2022-02-21 04:17:07,292 INFO L290 TraceCheckUtils]: 18: Hoare triple {132#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; {132#false} is VALID [2022-02-21 04:17:07,293 INFO L290 TraceCheckUtils]: 19: Hoare triple {132#false} __utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; {132#false} is VALID [2022-02-21 04:17:07,293 INFO L290 TraceCheckUtils]: 20: Hoare triple {132#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; {132#false} is VALID [2022-02-21 04:17:07,293 INFO L290 TraceCheckUtils]: 21: Hoare triple {132#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {132#false} is VALID [2022-02-21 04:17:07,294 INFO L290 TraceCheckUtils]: 22: Hoare triple {132#false} assume { :end_inline_timeShift } true; {132#false} is VALID [2022-02-21 04:17:07,295 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 04:17:07,296 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:07,296 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080021800] [2022-02-21 04:17:07,297 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080021800] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:07,298 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:07,298 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:17:07,298 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610679571] [2022-02-21 04:17:07,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:07,421 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:07,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:17:07,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:17:07,447 INFO L87 Difference]: Start difference. First operand has 123 states, 122 states have (on average 1.3770491803278688) internal successors, (168), 122 states have internal predecessors, (168), 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 04:17:07,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:07,739 INFO L93 Difference]: Finished difference Result 120 states and 154 transitions. [2022-02-21 04:17:07,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:17:07,740 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 04:17:07,757 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 04:17:07,761 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 120 states and 154 transitions. [2022-02-21 04:17:07,765 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 74 [2022-02-21 04:17:07,770 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 120 states to 110 states and 144 transitions. [2022-02-21 04:17:07,770 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 110 [2022-02-21 04:17:07,771 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 110 [2022-02-21 04:17:07,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 110 states and 144 transitions. [2022-02-21 04:17:07,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:07,776 INFO L681 BuchiCegarLoop]: Abstraction has 110 states and 144 transitions. [2022-02-21 04:17:07,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states and 144 transitions. [2022-02-21 04:17:07,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2022-02-21 04:17:07,796 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:07,797 INFO L82 GeneralOperation]: Start isEquivalent. First operand 110 states and 144 transitions. Second operand has 110 states, 110 states have (on average 1.309090909090909) internal successors, (144), 109 states have internal predecessors, (144), 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 04:17:07,798 INFO L74 IsIncluded]: Start isIncluded. First operand 110 states and 144 transitions. Second operand has 110 states, 110 states have (on average 1.309090909090909) internal successors, (144), 109 states have internal predecessors, (144), 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 04:17:07,799 INFO L87 Difference]: Start difference. First operand 110 states and 144 transitions. Second operand has 110 states, 110 states have (on average 1.309090909090909) internal successors, (144), 109 states have internal predecessors, (144), 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 04:17:07,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:07,802 INFO L93 Difference]: Finished difference Result 110 states and 144 transitions. [2022-02-21 04:17:07,803 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 144 transitions. [2022-02-21 04:17:07,804 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:07,804 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:07,804 INFO L74 IsIncluded]: Start isIncluded. First operand has 110 states, 110 states have (on average 1.309090909090909) internal successors, (144), 109 states have internal predecessors, (144), 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 110 states and 144 transitions. [2022-02-21 04:17:07,805 INFO L87 Difference]: Start difference. First operand has 110 states, 110 states have (on average 1.309090909090909) internal successors, (144), 109 states have internal predecessors, (144), 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 110 states and 144 transitions. [2022-02-21 04:17:07,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:07,807 INFO L93 Difference]: Finished difference Result 110 states and 144 transitions. [2022-02-21 04:17:07,808 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 144 transitions. [2022-02-21 04:17:07,808 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:07,808 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:07,809 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:07,809 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:07,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 110 states have (on average 1.309090909090909) internal successors, (144), 109 states have internal predecessors, (144), 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 04:17:07,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 144 transitions. [2022-02-21 04:17:07,812 INFO L704 BuchiCegarLoop]: Abstraction has 110 states and 144 transitions. [2022-02-21 04:17:07,812 INFO L587 BuchiCegarLoop]: Abstraction has 110 states and 144 transitions. [2022-02-21 04:17:07,813 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:17:07,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states and 144 transitions. [2022-02-21 04:17:07,814 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 74 [2022-02-21 04:17:07,814 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:07,814 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:07,814 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:07,815 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] [2022-02-21 04:17:07,815 INFO L791 eck$LassoCheckResult]: Stem: 369#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 315#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 316#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 342#L68 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; 302#L83 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 303#L548 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 263#L525 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 264#L281-2 [2022-02-21 04:17:07,815 INFO L793 eck$LassoCheckResult]: Loop: 264#L281-2 assume !false; 265#L282 assume test_~splverifierCounter~0#1 < 4; 266#L283 test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 353#L291 assume !(0 != test_~tmp~3#1); 351#L291-2 test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 352#L301 assume !(0 != test_~tmp___0~1#1); 306#L301-2 test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 307#L311 assume 0 != test_~tmp___2~0#1; 271#L317-2 assume { :begin_inline_timeShift } true; 293#L105 assume !(0 != ~pumpRunning~0); 294#L105-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; 317#L137 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 322#L129-1 assume { :end_inline_processEnvironment__wrappee__base } true; 323#L137-1 assume { :end_inline_processEnvironment } true; 345#L112-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; 300#L415-1 __utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; 301#L347 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 340#L353-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 332#L122 assume { :end_inline_timeShift } true; 264#L281-2 [2022-02-21 04:17:07,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:07,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:17:07,816 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:07,816 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239606289] [2022-02-21 04:17:07,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:07,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:07,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:07,836 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:07,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:07,849 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:07,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:07,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1621737013, now seen corresponding path program 1 times [2022-02-21 04:17:07,850 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:07,850 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653702890] [2022-02-21 04:17:07,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:07,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:07,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:07,863 INFO L290 TraceCheckUtils]: 0: Hoare triple {596#true} assume !false; {596#true} is VALID [2022-02-21 04:17:07,864 INFO L290 TraceCheckUtils]: 1: Hoare triple {596#true} assume test_~splverifierCounter~0#1 < 4; {596#true} is VALID [2022-02-21 04:17:07,864 INFO L290 TraceCheckUtils]: 2: Hoare triple {596#true} test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; {596#true} is VALID [2022-02-21 04:17:07,864 INFO L290 TraceCheckUtils]: 3: Hoare triple {596#true} assume !(0 != test_~tmp~3#1); {596#true} is VALID [2022-02-21 04:17:07,864 INFO L290 TraceCheckUtils]: 4: Hoare triple {596#true} test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; {596#true} is VALID [2022-02-21 04:17:07,864 INFO L290 TraceCheckUtils]: 5: Hoare triple {596#true} assume !(0 != test_~tmp___0~1#1); {596#true} is VALID [2022-02-21 04:17:07,865 INFO L290 TraceCheckUtils]: 6: Hoare triple {596#true} test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {596#true} is VALID [2022-02-21 04:17:07,865 INFO L290 TraceCheckUtils]: 7: Hoare triple {596#true} assume 0 != test_~tmp___2~0#1; {596#true} is VALID [2022-02-21 04:17:07,865 INFO L290 TraceCheckUtils]: 8: Hoare triple {596#true} assume { :begin_inline_timeShift } true; {596#true} is VALID [2022-02-21 04:17:07,865 INFO L290 TraceCheckUtils]: 9: Hoare triple {596#true} assume !(0 != ~pumpRunning~0); {598#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:07,866 INFO L290 TraceCheckUtils]: 10: Hoare triple {598#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; {598#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:07,866 INFO L290 TraceCheckUtils]: 11: Hoare triple {598#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {597#false} is VALID [2022-02-21 04:17:07,866 INFO L290 TraceCheckUtils]: 12: Hoare triple {597#false} assume { :end_inline_processEnvironment__wrappee__base } true; {597#false} is VALID [2022-02-21 04:17:07,867 INFO L290 TraceCheckUtils]: 13: Hoare triple {597#false} assume { :end_inline_processEnvironment } true; {597#false} is VALID [2022-02-21 04:17:07,867 INFO L290 TraceCheckUtils]: 14: Hoare triple {597#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; {597#false} is VALID [2022-02-21 04:17:07,867 INFO L290 TraceCheckUtils]: 15: Hoare triple {597#false} __utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; {597#false} is VALID [2022-02-21 04:17:07,867 INFO L290 TraceCheckUtils]: 16: Hoare triple {597#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; {597#false} is VALID [2022-02-21 04:17:07,867 INFO L290 TraceCheckUtils]: 17: Hoare triple {597#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {597#false} is VALID [2022-02-21 04:17:07,867 INFO L290 TraceCheckUtils]: 18: Hoare triple {597#false} assume { :end_inline_timeShift } true; {597#false} is VALID [2022-02-21 04:17:07,868 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 04:17:07,868 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:07,868 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653702890] [2022-02-21 04:17:07,868 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653702890] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:07,868 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:07,869 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:17:07,869 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668345148] [2022-02-21 04:17:07,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:07,869 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:07,869 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:07,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:17:07,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:17:07,870 INFO L87 Difference]: Start difference. First operand 110 states and 144 transitions. cyclomatic complexity: 36 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 04:17:08,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:08,015 INFO L93 Difference]: Finished difference Result 171 states and 218 transitions. [2022-02-21 04:17:08,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:17:08,015 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 04:17:08,031 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:08,031 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 171 states and 218 transitions. [2022-02-21 04:17:08,038 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2022-02-21 04:17:08,044 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 171 states to 171 states and 218 transitions. [2022-02-21 04:17:08,044 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 171 [2022-02-21 04:17:08,045 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 171 [2022-02-21 04:17:08,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 171 states and 218 transitions. [2022-02-21 04:17:08,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:08,047 INFO L681 BuchiCegarLoop]: Abstraction has 171 states and 218 transitions. [2022-02-21 04:17:08,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states and 218 transitions. [2022-02-21 04:17:08,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2022-02-21 04:17:08,063 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:08,064 INFO L82 GeneralOperation]: Start isEquivalent. First operand 171 states and 218 transitions. Second operand has 171 states, 171 states have (on average 1.2748538011695907) internal successors, (218), 170 states have internal predecessors, (218), 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 04:17:08,064 INFO L74 IsIncluded]: Start isIncluded. First operand 171 states and 218 transitions. Second operand has 171 states, 171 states have (on average 1.2748538011695907) internal successors, (218), 170 states have internal predecessors, (218), 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 04:17:08,065 INFO L87 Difference]: Start difference. First operand 171 states and 218 transitions. Second operand has 171 states, 171 states have (on average 1.2748538011695907) internal successors, (218), 170 states have internal predecessors, (218), 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 04:17:08,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:08,068 INFO L93 Difference]: Finished difference Result 171 states and 218 transitions. [2022-02-21 04:17:08,068 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 218 transitions. [2022-02-21 04:17:08,069 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:08,069 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:08,069 INFO L74 IsIncluded]: Start isIncluded. First operand has 171 states, 171 states have (on average 1.2748538011695907) internal successors, (218), 170 states have internal predecessors, (218), 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 171 states and 218 transitions. [2022-02-21 04:17:08,069 INFO L87 Difference]: Start difference. First operand has 171 states, 171 states have (on average 1.2748538011695907) internal successors, (218), 170 states have internal predecessors, (218), 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 171 states and 218 transitions. [2022-02-21 04:17:08,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:08,073 INFO L93 Difference]: Finished difference Result 171 states and 218 transitions. [2022-02-21 04:17:08,073 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 218 transitions. [2022-02-21 04:17:08,073 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:08,073 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:08,074 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:08,074 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:08,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 171 states have (on average 1.2748538011695907) internal successors, (218), 170 states have internal predecessors, (218), 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 04:17:08,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 218 transitions. [2022-02-21 04:17:08,077 INFO L704 BuchiCegarLoop]: Abstraction has 171 states and 218 transitions. [2022-02-21 04:17:08,077 INFO L587 BuchiCegarLoop]: Abstraction has 171 states and 218 transitions. [2022-02-21 04:17:08,077 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:17:08,078 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 171 states and 218 transitions. [2022-02-21 04:17:08,078 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2022-02-21 04:17:08,078 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:08,078 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:08,079 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:08,079 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] [2022-02-21 04:17:08,079 INFO L791 eck$LassoCheckResult]: Stem: 889#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 825#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 826#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 853#L68 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; 811#L83 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 812#L548 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 770#L525 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 771#L281-2 [2022-02-21 04:17:08,079 INFO L793 eck$LassoCheckResult]: Loop: 771#L281-2 assume !false; 774#L282 assume test_~splverifierCounter~0#1 < 4; 775#L283 test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 866#L291 assume !(0 != test_~tmp~3#1); 864#L291-2 test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 865#L301 assume !(0 != test_~tmp___0~1#1); 815#L301-2 test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 816#L311 assume 0 != test_~tmp___2~0#1; 780#L317-2 assume { :begin_inline_timeShift } true; 800#L105 assume !(0 != ~pumpRunning~0); 801#L105-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; 827#L137 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;havoc isHighWaterSensorDry_~retValue_acc~7#1; 777#L455 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~7#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~7#1; 778#L460 isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1; 852#L257 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 830#L257-2 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 831#L263 processEnvironment_#t~ret5#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~0#1 := processEnvironment_#t~ret5#1;havoc processEnvironment_#t~ret5#1; 835#L141 assume !(0 != processEnvironment_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 837#L129 assume { :end_inline_processEnvironment__wrappee__base } true; 887#L137-1 assume { :end_inline_processEnvironment } true; 907#L112-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; 906#L415-1 __utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; 888#L347 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 850#L353-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 840#L122 assume { :end_inline_timeShift } true; 771#L281-2 [2022-02-21 04:17:08,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:08,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:17:08,080 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:08,080 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993591427] [2022-02-21 04:17:08,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:08,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:08,090 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:08,106 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:08,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:08,106 INFO L85 PathProgramCache]: Analyzing trace with hash 105517567, now seen corresponding path program 1 times [2022-02-21 04:17:08,107 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:08,107 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731931373] [2022-02-21 04:17:08,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:08,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:08,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:08,132 INFO L290 TraceCheckUtils]: 0: Hoare triple {1288#true} assume !false; {1288#true} is VALID [2022-02-21 04:17:08,132 INFO L290 TraceCheckUtils]: 1: Hoare triple {1288#true} assume test_~splverifierCounter~0#1 < 4; {1288#true} is VALID [2022-02-21 04:17:08,133 INFO L290 TraceCheckUtils]: 2: Hoare triple {1288#true} test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; {1288#true} is VALID [2022-02-21 04:17:08,133 INFO L290 TraceCheckUtils]: 3: Hoare triple {1288#true} assume !(0 != test_~tmp~3#1); {1288#true} is VALID [2022-02-21 04:17:08,133 INFO L290 TraceCheckUtils]: 4: Hoare triple {1288#true} test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; {1288#true} is VALID [2022-02-21 04:17:08,133 INFO L290 TraceCheckUtils]: 5: Hoare triple {1288#true} assume !(0 != test_~tmp___0~1#1); {1288#true} is VALID [2022-02-21 04:17:08,133 INFO L290 TraceCheckUtils]: 6: Hoare triple {1288#true} test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {1288#true} is VALID [2022-02-21 04:17:08,134 INFO L290 TraceCheckUtils]: 7: Hoare triple {1288#true} assume 0 != test_~tmp___2~0#1; {1288#true} is VALID [2022-02-21 04:17:08,136 INFO L290 TraceCheckUtils]: 8: Hoare triple {1288#true} assume { :begin_inline_timeShift } true; {1288#true} is VALID [2022-02-21 04:17:08,136 INFO L290 TraceCheckUtils]: 9: Hoare triple {1288#true} assume !(0 != ~pumpRunning~0); {1288#true} is VALID [2022-02-21 04:17:08,136 INFO L290 TraceCheckUtils]: 10: Hoare triple {1288#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; {1288#true} is VALID [2022-02-21 04:17:08,136 INFO L290 TraceCheckUtils]: 11: Hoare triple {1288#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;havoc isHighWaterSensorDry_~retValue_acc~7#1; {1288#true} is VALID [2022-02-21 04:17:08,137 INFO L290 TraceCheckUtils]: 12: Hoare triple {1288#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~7#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~7#1; {1290#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 0)} is VALID [2022-02-21 04:17:08,137 INFO L290 TraceCheckUtils]: 13: Hoare triple {1290#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 0)} isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1; {1291#(= |ULTIMATE.start_isHighWaterLevel_~tmp~2#1| 0)} is VALID [2022-02-21 04:17:08,138 INFO L290 TraceCheckUtils]: 14: Hoare triple {1291#(= |ULTIMATE.start_isHighWaterLevel_~tmp~2#1| 0)} assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; {1289#false} is VALID [2022-02-21 04:17:08,138 INFO L290 TraceCheckUtils]: 15: Hoare triple {1289#false} isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; {1289#false} is VALID [2022-02-21 04:17:08,138 INFO L290 TraceCheckUtils]: 16: Hoare triple {1289#false} processEnvironment_#t~ret5#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~0#1 := processEnvironment_#t~ret5#1;havoc processEnvironment_#t~ret5#1; {1289#false} is VALID [2022-02-21 04:17:08,139 INFO L290 TraceCheckUtils]: 17: Hoare triple {1289#false} assume !(0 != processEnvironment_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {1289#false} is VALID [2022-02-21 04:17:08,140 INFO L290 TraceCheckUtils]: 18: Hoare triple {1289#false} assume { :end_inline_processEnvironment__wrappee__base } true; {1289#false} is VALID [2022-02-21 04:17:08,140 INFO L290 TraceCheckUtils]: 19: Hoare triple {1289#false} assume { :end_inline_processEnvironment } true; {1289#false} is VALID [2022-02-21 04:17:08,140 INFO L290 TraceCheckUtils]: 20: Hoare triple {1289#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; {1289#false} is VALID [2022-02-21 04:17:08,140 INFO L290 TraceCheckUtils]: 21: Hoare triple {1289#false} __utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; {1289#false} is VALID [2022-02-21 04:17:08,141 INFO L290 TraceCheckUtils]: 22: Hoare triple {1289#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; {1289#false} is VALID [2022-02-21 04:17:08,141 INFO L290 TraceCheckUtils]: 23: Hoare triple {1289#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {1289#false} is VALID [2022-02-21 04:17:08,141 INFO L290 TraceCheckUtils]: 24: Hoare triple {1289#false} assume { :end_inline_timeShift } true; {1289#false} is VALID [2022-02-21 04:17:08,141 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 04:17:08,142 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:08,142 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731931373] [2022-02-21 04:17:08,143 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731931373] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:08,143 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:08,143 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:17:08,143 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782178648] [2022-02-21 04:17:08,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:08,143 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:08,144 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:08,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-21 04:17:08,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-21 04:17:08,145 INFO L87 Difference]: Start difference. First operand 171 states and 218 transitions. cyclomatic complexity: 49 Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 04:17:08,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:08,474 INFO L93 Difference]: Finished difference Result 487 states and 616 transitions. [2022-02-21 04:17:08,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:17:08,474 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 04:17:08,490 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:08,490 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 487 states and 616 transitions. [2022-02-21 04:17:08,502 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 352 [2022-02-21 04:17:08,513 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 487 states to 487 states and 616 transitions. [2022-02-21 04:17:08,513 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 487 [2022-02-21 04:17:08,514 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 487 [2022-02-21 04:17:08,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 487 states and 616 transitions. [2022-02-21 04:17:08,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:08,515 INFO L681 BuchiCegarLoop]: Abstraction has 487 states and 616 transitions. [2022-02-21 04:17:08,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states and 616 transitions. [2022-02-21 04:17:08,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 177. [2022-02-21 04:17:08,519 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:08,519 INFO L82 GeneralOperation]: Start isEquivalent. First operand 487 states and 616 transitions. Second operand has 177 states, 177 states have (on average 1.265536723163842) internal successors, (224), 176 states have internal predecessors, (224), 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 04:17:08,520 INFO L74 IsIncluded]: Start isIncluded. First operand 487 states and 616 transitions. Second operand has 177 states, 177 states have (on average 1.265536723163842) internal successors, (224), 176 states have internal predecessors, (224), 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 04:17:08,520 INFO L87 Difference]: Start difference. First operand 487 states and 616 transitions. Second operand has 177 states, 177 states have (on average 1.265536723163842) internal successors, (224), 176 states have internal predecessors, (224), 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 04:17:08,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:08,530 INFO L93 Difference]: Finished difference Result 487 states and 616 transitions. [2022-02-21 04:17:08,530 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 616 transitions. [2022-02-21 04:17:08,530 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:08,530 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:08,531 INFO L74 IsIncluded]: Start isIncluded. First operand has 177 states, 177 states have (on average 1.265536723163842) internal successors, (224), 176 states have internal predecessors, (224), 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 487 states and 616 transitions. [2022-02-21 04:17:08,531 INFO L87 Difference]: Start difference. First operand has 177 states, 177 states have (on average 1.265536723163842) internal successors, (224), 176 states have internal predecessors, (224), 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 487 states and 616 transitions. [2022-02-21 04:17:08,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:08,541 INFO L93 Difference]: Finished difference Result 487 states and 616 transitions. [2022-02-21 04:17:08,542 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 616 transitions. [2022-02-21 04:17:08,542 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:08,542 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:08,542 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:08,542 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:08,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 177 states have (on average 1.265536723163842) internal successors, (224), 176 states have internal predecessors, (224), 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 04:17:08,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 224 transitions. [2022-02-21 04:17:08,545 INFO L704 BuchiCegarLoop]: Abstraction has 177 states and 224 transitions. [2022-02-21 04:17:08,545 INFO L587 BuchiCegarLoop]: Abstraction has 177 states and 224 transitions. [2022-02-21 04:17:08,546 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:17:08,546 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 177 states and 224 transitions. [2022-02-21 04:17:08,546 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 124 [2022-02-21 04:17:08,546 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:08,547 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:08,547 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:08,547 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] [2022-02-21 04:17:08,547 INFO L791 eck$LassoCheckResult]: Stem: 1911#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1838#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 1839#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1870#L68 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; 1824#L83 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 1825#L548 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 1782#L525 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1783#L281-2 [2022-02-21 04:17:08,548 INFO L793 eck$LassoCheckResult]: Loop: 1783#L281-2 assume !false; 1786#L282 assume test_~splverifierCounter~0#1 < 4; 1787#L283 test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 1958#L291 assume !(0 != test_~tmp~3#1); 1957#L291-2 test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 1955#L301 assume !(0 != test_~tmp___0~1#1); 1953#L301-2 test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 1855#L311 assume 0 != test_~tmp___2~0#1; 1793#L317-2 assume { :begin_inline_timeShift } true; 1813#L105 assume !(0 != ~pumpRunning~0); 1814#L105-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; 1840#L137 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;havoc isHighWaterSensorDry_~retValue_acc~7#1; 1789#L455 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~7#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~7#1; 1790#L460 isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1; 1912#L257 assume !(0 != isHighWaterLevel_~tmp~2#1);isHighWaterLevel_~tmp___0~0#1 := 1; 1843#L257-2 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 1844#L263 processEnvironment_#t~ret5#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~0#1 := processEnvironment_#t~ret5#1;havoc processEnvironment_#t~ret5#1; 1848#L141 assume !(0 != processEnvironment_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1850#L129 assume { :end_inline_processEnvironment__wrappee__base } true; 1879#L137-1 assume { :end_inline_processEnvironment } true; 1873#L112-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; 1822#L415-1 __utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; 1823#L347 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 1866#L353-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1856#L122 assume { :end_inline_timeShift } true; 1783#L281-2 [2022-02-21 04:17:08,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:08,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-02-21 04:17:08,548 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:08,549 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510700999] [2022-02-21 04:17:08,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:08,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:08,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:08,557 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:08,565 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:08,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:08,565 INFO L85 PathProgramCache]: Analyzing trace with hash 806582145, now seen corresponding path program 1 times [2022-02-21 04:17:08,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:08,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379566127] [2022-02-21 04:17:08,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:08,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:08,599 INFO L290 TraceCheckUtils]: 0: Hoare triple {2938#true} assume !false; {2938#true} is VALID [2022-02-21 04:17:08,599 INFO L290 TraceCheckUtils]: 1: Hoare triple {2938#true} assume test_~splverifierCounter~0#1 < 4; {2938#true} is VALID [2022-02-21 04:17:08,599 INFO L290 TraceCheckUtils]: 2: Hoare triple {2938#true} test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; {2938#true} is VALID [2022-02-21 04:17:08,600 INFO L290 TraceCheckUtils]: 3: Hoare triple {2938#true} assume !(0 != test_~tmp~3#1); {2938#true} is VALID [2022-02-21 04:17:08,600 INFO L290 TraceCheckUtils]: 4: Hoare triple {2938#true} test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; {2938#true} is VALID [2022-02-21 04:17:08,600 INFO L290 TraceCheckUtils]: 5: Hoare triple {2938#true} assume !(0 != test_~tmp___0~1#1); {2938#true} is VALID [2022-02-21 04:17:08,600 INFO L290 TraceCheckUtils]: 6: Hoare triple {2938#true} test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {2938#true} is VALID [2022-02-21 04:17:08,600 INFO L290 TraceCheckUtils]: 7: Hoare triple {2938#true} assume 0 != test_~tmp___2~0#1; {2938#true} is VALID [2022-02-21 04:17:08,600 INFO L290 TraceCheckUtils]: 8: Hoare triple {2938#true} assume { :begin_inline_timeShift } true; {2938#true} is VALID [2022-02-21 04:17:08,601 INFO L290 TraceCheckUtils]: 9: Hoare triple {2938#true} assume !(0 != ~pumpRunning~0); {2938#true} is VALID [2022-02-21 04:17:08,601 INFO L290 TraceCheckUtils]: 10: Hoare triple {2938#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; {2938#true} is VALID [2022-02-21 04:17:08,601 INFO L290 TraceCheckUtils]: 11: Hoare triple {2938#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;havoc isHighWaterSensorDry_~retValue_acc~7#1; {2938#true} is VALID [2022-02-21 04:17:08,601 INFO L290 TraceCheckUtils]: 12: Hoare triple {2938#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~7#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~7#1; {2938#true} is VALID [2022-02-21 04:17:08,601 INFO L290 TraceCheckUtils]: 13: Hoare triple {2938#true} isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1; {2938#true} is VALID [2022-02-21 04:17:08,602 INFO L290 TraceCheckUtils]: 14: Hoare triple {2938#true} assume !(0 != isHighWaterLevel_~tmp~2#1);isHighWaterLevel_~tmp___0~0#1 := 1; {2940#(<= 1 |ULTIMATE.start_isHighWaterLevel_~tmp___0~0#1|)} is VALID [2022-02-21 04:17:08,602 INFO L290 TraceCheckUtils]: 15: Hoare triple {2940#(<= 1 |ULTIMATE.start_isHighWaterLevel_~tmp___0~0#1|)} isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; {2941#(<= 1 |ULTIMATE.start_isHighWaterLevel_#res#1|)} is VALID [2022-02-21 04:17:08,603 INFO L290 TraceCheckUtils]: 16: Hoare triple {2941#(<= 1 |ULTIMATE.start_isHighWaterLevel_#res#1|)} processEnvironment_#t~ret5#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~0#1 := processEnvironment_#t~ret5#1;havoc processEnvironment_#t~ret5#1; {2942#(<= 1 |ULTIMATE.start_processEnvironment_~tmp~0#1|)} is VALID [2022-02-21 04:17:08,603 INFO L290 TraceCheckUtils]: 17: Hoare triple {2942#(<= 1 |ULTIMATE.start_processEnvironment_~tmp~0#1|)} assume !(0 != processEnvironment_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {2939#false} is VALID [2022-02-21 04:17:08,603 INFO L290 TraceCheckUtils]: 18: Hoare triple {2939#false} assume { :end_inline_processEnvironment__wrappee__base } true; {2939#false} is VALID [2022-02-21 04:17:08,603 INFO L290 TraceCheckUtils]: 19: Hoare triple {2939#false} assume { :end_inline_processEnvironment } true; {2939#false} is VALID [2022-02-21 04:17:08,604 INFO L290 TraceCheckUtils]: 20: Hoare triple {2939#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; {2939#false} is VALID [2022-02-21 04:17:08,604 INFO L290 TraceCheckUtils]: 21: Hoare triple {2939#false} __utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; {2939#false} is VALID [2022-02-21 04:17:08,604 INFO L290 TraceCheckUtils]: 22: Hoare triple {2939#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; {2939#false} is VALID [2022-02-21 04:17:08,604 INFO L290 TraceCheckUtils]: 23: Hoare triple {2939#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {2939#false} is VALID [2022-02-21 04:17:08,604 INFO L290 TraceCheckUtils]: 24: Hoare triple {2939#false} assume { :end_inline_timeShift } true; {2939#false} is VALID [2022-02-21 04:17:08,605 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 04:17:08,605 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:08,605 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379566127] [2022-02-21 04:17:08,605 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379566127] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:08,605 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:08,605 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:17:08,606 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799710509] [2022-02-21 04:17:08,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:08,606 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:08,606 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:08,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:17:08,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:17:08,607 INFO L87 Difference]: Start difference. First operand 177 states and 224 transitions. cyclomatic complexity: 49 Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 04:17:09,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:09,007 INFO L93 Difference]: Finished difference Result 393 states and 497 transitions. [2022-02-21 04:17:09,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:17:09,008 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 04:17:09,023 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:09,024 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 393 states and 497 transitions. [2022-02-21 04:17:09,032 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 284 [2022-02-21 04:17:09,038 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 393 states to 393 states and 497 transitions. [2022-02-21 04:17:09,039 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 393 [2022-02-21 04:17:09,039 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 393 [2022-02-21 04:17:09,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 393 states and 497 transitions. [2022-02-21 04:17:09,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:09,040 INFO L681 BuchiCegarLoop]: Abstraction has 393 states and 497 transitions. [2022-02-21 04:17:09,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states and 497 transitions. [2022-02-21 04:17:09,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 186. [2022-02-21 04:17:09,042 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:09,043 INFO L82 GeneralOperation]: Start isEquivalent. First operand 393 states and 497 transitions. Second operand has 186 states, 186 states have (on average 1.2526881720430108) internal successors, (233), 185 states have internal predecessors, (233), 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 04:17:09,043 INFO L74 IsIncluded]: Start isIncluded. First operand 393 states and 497 transitions. Second operand has 186 states, 186 states have (on average 1.2526881720430108) internal successors, (233), 185 states have internal predecessors, (233), 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 04:17:09,044 INFO L87 Difference]: Start difference. First operand 393 states and 497 transitions. Second operand has 186 states, 186 states have (on average 1.2526881720430108) internal successors, (233), 185 states have internal predecessors, (233), 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 04:17:09,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:09,050 INFO L93 Difference]: Finished difference Result 393 states and 497 transitions. [2022-02-21 04:17:09,050 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 497 transitions. [2022-02-21 04:17:09,050 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:09,050 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:09,051 INFO L74 IsIncluded]: Start isIncluded. First operand has 186 states, 186 states have (on average 1.2526881720430108) internal successors, (233), 185 states have internal predecessors, (233), 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 393 states and 497 transitions. [2022-02-21 04:17:09,051 INFO L87 Difference]: Start difference. First operand has 186 states, 186 states have (on average 1.2526881720430108) internal successors, (233), 185 states have internal predecessors, (233), 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 393 states and 497 transitions. [2022-02-21 04:17:09,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:09,057 INFO L93 Difference]: Finished difference Result 393 states and 497 transitions. [2022-02-21 04:17:09,057 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 497 transitions. [2022-02-21 04:17:09,058 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:09,058 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:09,058 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:09,058 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:09,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 186 states have (on average 1.2526881720430108) internal successors, (233), 185 states have internal predecessors, (233), 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 04:17:09,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 233 transitions. [2022-02-21 04:17:09,061 INFO L704 BuchiCegarLoop]: Abstraction has 186 states and 233 transitions. [2022-02-21 04:17:09,061 INFO L587 BuchiCegarLoop]: Abstraction has 186 states and 233 transitions. [2022-02-21 04:17:09,061 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2022-02-21 04:17:09,061 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 186 states and 233 transitions. [2022-02-21 04:17:09,061 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 130 [2022-02-21 04:17:09,062 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:09,062 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:09,062 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:09,062 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] [2022-02-21 04:17:09,062 INFO L791 eck$LassoCheckResult]: Stem: 3470#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 3398#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 3399#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3427#L68 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; 3384#L83 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 3385#L548 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 3344#L525 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3345#L281-2 [2022-02-21 04:17:09,063 INFO L793 eck$LassoCheckResult]: Loop: 3345#L281-2 assume !false; 3346#L282 assume test_~splverifierCounter~0#1 < 4; 3347#L283 test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 3526#L291 assume !(0 != test_~tmp~3#1); 3524#L291-2 test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 3447#L301 assume !(0 != test_~tmp___0~1#1); 3388#L301-2 test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 3389#L311 assume 0 != test_~tmp___2~0#1; 3353#L317-2 assume { :begin_inline_timeShift } true; 3375#L105 assume !(0 != ~pumpRunning~0); 3376#L105-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; 3402#L137 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;havoc isHighWaterSensorDry_~retValue_acc~7#1; 3349#L455 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~7#1; 3351#L460 isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1; 3479#L257 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 3478#L257-2 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 3477#L263 processEnvironment_#t~ret5#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~0#1 := processEnvironment_#t~ret5#1;havoc processEnvironment_#t~ret5#1; 3475#L141 assume !(0 != processEnvironment_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3468#L129 assume { :end_inline_processEnvironment__wrappee__base } true; 3469#L137-1 assume { :end_inline_processEnvironment } true; 3517#L112-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; 3515#L415-1 __utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; 3510#L347 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 3509#L353-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3508#L122 assume { :end_inline_timeShift } true; 3345#L281-2 [2022-02-21 04:17:09,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:09,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2022-02-21 04:17:09,063 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:09,063 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866542321] [2022-02-21 04:17:09,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:09,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:09,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:09,072 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:09,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:09,079 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:09,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:09,079 INFO L85 PathProgramCache]: Analyzing trace with hash 692323581, now seen corresponding path program 1 times [2022-02-21 04:17:09,079 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:09,080 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564396820] [2022-02-21 04:17:09,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:09,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:09,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:09,085 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:09,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:09,090 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:09,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:09,090 INFO L85 PathProgramCache]: Analyzing trace with hash -558681159, now seen corresponding path program 1 times [2022-02-21 04:17:09,090 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:09,091 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12656715] [2022-02-21 04:17:09,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:09,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:09,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:09,134 INFO L290 TraceCheckUtils]: 0: Hoare triple {4321#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {4323#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,135 INFO L290 TraceCheckUtils]: 1: Hoare triple {4323#(= ~methaneLevelCritical~0 0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; {4323#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,135 INFO L290 TraceCheckUtils]: 2: Hoare triple {4323#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {4323#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,136 INFO L290 TraceCheckUtils]: 3: Hoare triple {4323#(= ~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; {4323#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,136 INFO L290 TraceCheckUtils]: 4: Hoare triple {4323#(= ~methaneLevelCritical~0 0)} main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret29#1;havoc main_#t~ret29#1; {4323#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,136 INFO L290 TraceCheckUtils]: 5: Hoare triple {4323#(= ~methaneLevelCritical~0 0)} assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; {4323#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,137 INFO L290 TraceCheckUtils]: 6: Hoare triple {4323#(= ~methaneLevelCritical~0 0)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {4323#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,137 INFO L290 TraceCheckUtils]: 7: Hoare triple {4323#(= ~methaneLevelCritical~0 0)} assume !false; {4323#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,137 INFO L290 TraceCheckUtils]: 8: Hoare triple {4323#(= ~methaneLevelCritical~0 0)} assume test_~splverifierCounter~0#1 < 4; {4323#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,138 INFO L290 TraceCheckUtils]: 9: Hoare triple {4323#(= ~methaneLevelCritical~0 0)} test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; {4323#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,138 INFO L290 TraceCheckUtils]: 10: Hoare triple {4323#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp~3#1); {4323#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,138 INFO L290 TraceCheckUtils]: 11: Hoare triple {4323#(= ~methaneLevelCritical~0 0)} test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; {4323#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,139 INFO L290 TraceCheckUtils]: 12: Hoare triple {4323#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___0~1#1); {4323#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,139 INFO L290 TraceCheckUtils]: 13: Hoare triple {4323#(= ~methaneLevelCritical~0 0)} test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {4323#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,141 INFO L290 TraceCheckUtils]: 14: Hoare triple {4323#(= ~methaneLevelCritical~0 0)} assume 0 != test_~tmp___2~0#1; {4323#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,141 INFO L290 TraceCheckUtils]: 15: Hoare triple {4323#(= ~methaneLevelCritical~0 0)} assume { :begin_inline_timeShift } true; {4323#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,142 INFO L290 TraceCheckUtils]: 16: Hoare triple {4323#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0); {4323#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,142 INFO L290 TraceCheckUtils]: 17: Hoare triple {4323#(= ~methaneLevelCritical~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; {4323#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,142 INFO L290 TraceCheckUtils]: 18: Hoare triple {4323#(= ~methaneLevelCritical~0 0)} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;havoc isHighWaterSensorDry_~retValue_acc~7#1; {4323#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,159 INFO L290 TraceCheckUtils]: 19: Hoare triple {4323#(= ~methaneLevelCritical~0 0)} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~7#1; {4323#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,160 INFO L290 TraceCheckUtils]: 20: Hoare triple {4323#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1; {4323#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,160 INFO L290 TraceCheckUtils]: 21: Hoare triple {4323#(= ~methaneLevelCritical~0 0)} assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; {4323#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,160 INFO L290 TraceCheckUtils]: 22: Hoare triple {4323#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; {4323#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,161 INFO L290 TraceCheckUtils]: 23: Hoare triple {4323#(= ~methaneLevelCritical~0 0)} processEnvironment_#t~ret5#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~0#1 := processEnvironment_#t~ret5#1;havoc processEnvironment_#t~ret5#1; {4323#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,161 INFO L290 TraceCheckUtils]: 24: Hoare triple {4323#(= ~methaneLevelCritical~0 0)} assume !(0 != processEnvironment_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {4323#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,161 INFO L290 TraceCheckUtils]: 25: Hoare triple {4323#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__base } true; {4323#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,162 INFO L290 TraceCheckUtils]: 26: Hoare triple {4323#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment } true; {4323#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,162 INFO L290 TraceCheckUtils]: 27: Hoare triple {4323#(= ~methaneLevelCritical~0 0)} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; {4324#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} is VALID [2022-02-21 04:17:09,162 INFO L290 TraceCheckUtils]: 28: Hoare triple {4324#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} __utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; {4325#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~4#1| 0)} is VALID [2022-02-21 04:17:09,163 INFO L290 TraceCheckUtils]: 29: Hoare triple {4325#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~4#1| 0)} assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; {4322#false} is VALID [2022-02-21 04:17:09,163 INFO L290 TraceCheckUtils]: 30: Hoare triple {4322#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {4322#false} is VALID [2022-02-21 04:17:09,163 INFO L290 TraceCheckUtils]: 31: Hoare triple {4322#false} assume { :end_inline_timeShift } true; {4322#false} is VALID [2022-02-21 04:17:09,163 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 04:17:09,163 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:09,163 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12656715] [2022-02-21 04:17:09,163 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12656715] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:09,163 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:09,163 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:17:09,164 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618522307] [2022-02-21 04:17:09,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:09,385 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:09,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:17:09,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:17:09,387 INFO L87 Difference]: Start difference. First operand 186 states and 233 transitions. cyclomatic complexity: 49 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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 04:17:09,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:09,857 INFO L93 Difference]: Finished difference Result 658 states and 818 transitions. [2022-02-21 04:17:09,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:17:09,858 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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 04:17:09,879 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:09,879 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 658 states and 818 transitions. [2022-02-21 04:17:09,892 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 479 [2022-02-21 04:17:09,912 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 658 states to 658 states and 818 transitions. [2022-02-21 04:17:09,912 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 658 [2022-02-21 04:17:09,913 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 658 [2022-02-21 04:17:09,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 658 states and 818 transitions. [2022-02-21 04:17:09,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:09,913 INFO L681 BuchiCegarLoop]: Abstraction has 658 states and 818 transitions. [2022-02-21 04:17:09,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states and 818 transitions. [2022-02-21 04:17:09,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 365. [2022-02-21 04:17:09,918 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:09,918 INFO L82 GeneralOperation]: Start isEquivalent. First operand 658 states and 818 transitions. Second operand has 365 states, 365 states have (on average 1.2356164383561643) internal successors, (451), 364 states have internal predecessors, (451), 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 04:17:09,919 INFO L74 IsIncluded]: Start isIncluded. First operand 658 states and 818 transitions. Second operand has 365 states, 365 states have (on average 1.2356164383561643) internal successors, (451), 364 states have internal predecessors, (451), 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 04:17:09,919 INFO L87 Difference]: Start difference. First operand 658 states and 818 transitions. Second operand has 365 states, 365 states have (on average 1.2356164383561643) internal successors, (451), 364 states have internal predecessors, (451), 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 04:17:09,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:09,932 INFO L93 Difference]: Finished difference Result 658 states and 818 transitions. [2022-02-21 04:17:09,932 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 818 transitions. [2022-02-21 04:17:09,932 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:09,932 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:09,933 INFO L74 IsIncluded]: Start isIncluded. First operand has 365 states, 365 states have (on average 1.2356164383561643) internal successors, (451), 364 states have internal predecessors, (451), 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 658 states and 818 transitions. [2022-02-21 04:17:09,933 INFO L87 Difference]: Start difference. First operand has 365 states, 365 states have (on average 1.2356164383561643) internal successors, (451), 364 states have internal predecessors, (451), 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 658 states and 818 transitions. [2022-02-21 04:17:09,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:09,946 INFO L93 Difference]: Finished difference Result 658 states and 818 transitions. [2022-02-21 04:17:09,946 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 818 transitions. [2022-02-21 04:17:09,947 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:09,947 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:09,947 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:09,947 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:09,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 365 states have (on average 1.2356164383561643) internal successors, (451), 364 states have internal predecessors, (451), 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 04:17:09,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 451 transitions. [2022-02-21 04:17:09,952 INFO L704 BuchiCegarLoop]: Abstraction has 365 states and 451 transitions. [2022-02-21 04:17:09,952 INFO L587 BuchiCegarLoop]: Abstraction has 365 states and 451 transitions. [2022-02-21 04:17:09,952 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2022-02-21 04:17:09,952 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 365 states and 451 transitions. [2022-02-21 04:17:09,953 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 260 [2022-02-21 04:17:09,953 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:09,954 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:09,954 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:09,954 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] [2022-02-21 04:17:09,954 INFO L791 eck$LassoCheckResult]: Stem: 5123#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 5050#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 5051#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 5079#L68 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; 5036#L83 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 5037#L548 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 4992#L525 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 4993#L281-2 [2022-02-21 04:17:09,955 INFO L793 eck$LassoCheckResult]: Loop: 4993#L281-2 assume !false; 4996#L282 assume test_~splverifierCounter~0#1 < 4; 4997#L283 test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 5094#L291 assume !(0 != test_~tmp~3#1); 5092#L291-2 test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 5093#L301 assume !(0 != test_~tmp___0~1#1); 5040#L301-2 test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 5041#L311 assume 0 != test_~tmp___2~0#1; 5003#L317-2 assume { :begin_inline_timeShift } true; 5024#L105 assume !(0 != ~pumpRunning~0); 5025#L105-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; 5052#L137 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;havoc isHighWaterSensorDry_~retValue_acc~7#1; 4999#L455 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~7#1; 5001#L460 isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1; 5352#L257 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 5351#L257-2 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 5350#L263 processEnvironment_#t~ret5#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~0#1 := processEnvironment_#t~ret5#1;havoc processEnvironment_#t~ret5#1; 5349#L141 assume !(0 != processEnvironment_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 5120#L129 assume { :end_inline_processEnvironment__wrappee__base } true; 5089#L137-1 assume { :end_inline_processEnvironment } true; 5083#L112-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; 5084#L415-1 __utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; 5121#L347 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;havoc getWaterLevel_~retValue_acc~6#1;getWaterLevel_~retValue_acc~6#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~6#1; 5122#L447 __utac_acc__Specification3_spec__1_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret22#1;havoc __utac_acc__Specification3_spec__1_#t~ret22#1; 5298#L353 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 5297#L353-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 5296#L122 assume { :end_inline_timeShift } true; 4993#L281-2 [2022-02-21 04:17:09,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:09,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 6 times [2022-02-21 04:17:09,955 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:09,955 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431653841] [2022-02-21 04:17:09,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:09,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:09,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:09,962 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:09,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:09,968 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:09,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:09,969 INFO L85 PathProgramCache]: Analyzing trace with hash -395717680, now seen corresponding path program 1 times [2022-02-21 04:17:09,969 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:09,969 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233493667] [2022-02-21 04:17:09,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:09,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:09,977 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:09,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:09,981 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:09,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:09,982 INFO L85 PathProgramCache]: Analyzing trace with hash -20429940, now seen corresponding path program 1 times [2022-02-21 04:17:09,982 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:09,982 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814931395] [2022-02-21 04:17:09,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:09,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:09,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:09,990 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:09,999 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:12,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:17:12 BoogieIcfgContainer [2022-02-21 04:17:12,478 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:17:12,479 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:17:12,479 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:17:12,479 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:17:12,479 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:06" (3/4) ... [2022-02-21 04:17:12,481 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:17:12,514 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:17:12,514 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:17:12,515 INFO L158 Benchmark]: Toolchain (without parser) took 6725.54ms. Allocated memory was 90.2MB in the beginning and 197.1MB in the end (delta: 107.0MB). Free memory was 54.7MB in the beginning and 133.5MB in the end (delta: -78.8MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2022-02-21 04:17:12,515 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 90.2MB. Free memory was 60.2MB in the beginning and 60.2MB in the end (delta: 26.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:17:12,516 INFO L158 Benchmark]: CACSL2BoogieTranslator took 415.02ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 54.6MB in the beginning and 76.4MB in the end (delta: -21.9MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2022-02-21 04:17:12,516 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.55ms. Allocated memory is still 111.1MB. Free memory was 76.4MB in the beginning and 72.8MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:12,517 INFO L158 Benchmark]: Boogie Preprocessor took 51.55ms. Allocated memory is still 111.1MB. Free memory was 72.8MB in the beginning and 70.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:12,517 INFO L158 Benchmark]: RCFGBuilder took 477.19ms. Allocated memory is still 111.1MB. Free memory was 70.7MB in the beginning and 75.4MB in the end (delta: -4.6MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:12,517 INFO L158 Benchmark]: BuchiAutomizer took 5661.29ms. Allocated memory was 111.1MB in the beginning and 197.1MB in the end (delta: 86.0MB). Free memory was 74.8MB in the beginning and 136.6MB in the end (delta: -61.8MB). Peak memory consumption was 79.4MB. Max. memory is 16.1GB. [2022-02-21 04:17:12,518 INFO L158 Benchmark]: Witness Printer took 35.24ms. Allocated memory is still 197.1MB. Free memory was 136.6MB in the beginning and 133.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:12,520 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 90.2MB. Free memory was 60.2MB in the beginning and 60.2MB in the end (delta: 26.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 415.02ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 54.6MB in the beginning and 76.4MB in the end (delta: -21.9MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.55ms. Allocated memory is still 111.1MB. Free memory was 76.4MB in the beginning and 72.8MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.55ms. Allocated memory is still 111.1MB. Free memory was 72.8MB in the beginning and 70.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 477.19ms. Allocated memory is still 111.1MB. Free memory was 70.7MB in the beginning and 75.4MB in the end (delta: -4.6MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 5661.29ms. Allocated memory was 111.1MB in the beginning and 197.1MB in the end (delta: 86.0MB). Free memory was 74.8MB in the beginning and 136.6MB in the end (delta: -61.8MB). Peak memory consumption was 79.4MB. Max. memory is 16.1GB. * Witness Printer took 35.24ms. Allocated memory is still 197.1MB. Free memory was 136.6MB in the beginning and 133.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 365 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.6s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 3.4s. Construction of modules took 0.1s. Büchi inclusion checks took 1.6s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 810 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 365 states and ocurred in iteration 5. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1987 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1987 mSDsluCounter, 2486 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1532 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 193 IncrementalHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 954 mSDtfsCounter, 193 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: 281]: 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@3888e2cc=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34e0fb2a=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, retValue_acc=0, NULL=1, retValue_acc=1, methaneLevelCritical=0, tmp=1, tmp___0=1, \result=0, tmp=0, retValue_acc=1, \result=1, retValue_acc=0, \result=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e5fba1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b62f34c=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1cf444df=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48bc4464=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69e0e672=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c05dae2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2cb37fed=0, tmp___2=29, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58b118e0=0, cleanupTimeShifts=4, tmp=0, tmp=1, \result=0, tmp=0, head=0, \result=1, retValue_acc=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, \result=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 281]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L97] int pumpRunning = 0; [L98] int systemActive = 1; [L372] int waterLevel = 1; [L373] int methaneLevelCritical = 0; [L466] int cleanupTimeShifts = 4; [L731] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L539] int retValue_acc ; [L540] int tmp ; [L544] FCALL select_helpers() [L545] FCALL select_features() [L546] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L546] RET, EXPR valid_product() [L546] tmp = valid_product() [L548] COND TRUE \read(tmp) [L550] FCALL setup() [L551] CALL runTest() [L533] CALL test() [L272] int splverifierCounter ; [L273] int tmp ; [L274] int tmp___0 ; [L275] int tmp___1 ; [L276] int tmp___2 ; [L279] splverifierCounter = 0 Loop: [L281] COND TRUE 1 [L283] COND TRUE splverifierCounter < 4 [L289] tmp = __VERIFIER_nondet_int() [L291] COND FALSE !(\read(tmp)) [L299] tmp___0 = __VERIFIER_nondet_int() [L301] COND FALSE !(\read(tmp___0)) [L309] tmp___2 = __VERIFIER_nondet_int() [L311] COND TRUE \read(tmp___2) [L324] CALL timeShift() [L105] COND FALSE !(\read(pumpRunning)) [L112] COND TRUE \read(systemActive) [L114] CALL processEnvironment() [L134] int tmp ; [L137] COND TRUE ! pumpRunning [L139] CALL, EXPR isHighWaterLevel() [L249] int retValue_acc ; [L250] int tmp ; [L251] int tmp___0 ; [L255] CALL, EXPR isHighWaterSensorDry() [L452] int retValue_acc ; [L455] COND TRUE waterLevel < 2 [L456] retValue_acc = 1 [L457] return (retValue_acc); [L255] RET, EXPR isHighWaterSensorDry() [L255] tmp = isHighWaterSensorDry() [L257] COND TRUE \read(tmp) [L258] tmp___0 = 0 [L262] retValue_acc = tmp___0 [L263] return (retValue_acc); [L139] RET, EXPR isHighWaterLevel() [L139] tmp = isHighWaterLevel() [L141] COND FALSE !(\read(tmp)) [L147] FCALL processEnvironment__wrappee__base() [L114] RET processEnvironment() [L120] CALL __utac_acc__Specification3_spec__1() [L339] int tmp ; [L340] int tmp___0 ; [L341] int tmp___1 ; [L345] CALL, EXPR isMethaneLevelCritical() [L411] int retValue_acc ; [L414] retValue_acc = methaneLevelCritical [L415] return (retValue_acc); [L345] RET, EXPR isMethaneLevelCritical() [L345] tmp = isMethaneLevelCritical() [L347] COND FALSE !(\read(tmp)) [L351] CALL, EXPR getWaterLevel() [L443] int retValue_acc ; [L446] retValue_acc = waterLevel [L447] return (retValue_acc); [L351] RET, EXPR getWaterLevel() [L351] tmp___0 = getWaterLevel() [L353] COND FALSE !(tmp___0 == 2) [L120] RET __utac_acc__Specification3_spec__1() [L324] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:17:12,567 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)