./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e7a194b3d6e079d2329a0d70eaa59b34ff3d58300de8b046ef1cd7cff7f67b94 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:53,722 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:53,724 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:53,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:53,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:53,753 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:53,754 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:53,758 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:53,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:53,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:53,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:53,764 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:53,764 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:53,765 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:53,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:53,769 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:53,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:53,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:53,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:53,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:53,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:53,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:53,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:53,780 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:53,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:53,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:53,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:53,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:53,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:53,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:53,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:53,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:53,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:53,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:53,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:53,791 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:53,792 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:53,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:53,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:53,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:53,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:53,794 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:53,825 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:53,826 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:53,826 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:53,827 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:53,828 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:53,828 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:53,828 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:53,828 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:53,829 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:53,829 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:53,829 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:53,830 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:53,830 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:53,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:53,830 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:53,830 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:53,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:53,831 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:53,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:53,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:53,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:53,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:53,831 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:53,832 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:53,833 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:53,833 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:53,833 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:53,833 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:53,833 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:53,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:53,834 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:53,835 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:53,835 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7a194b3d6e079d2329a0d70eaa59b34ff3d58300de8b046ef1cd7cff7f67b94 [2022-02-21 04:18:54,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:54,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:54,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:54,042 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:54,045 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:54,046 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2022-02-21 04:18:54,095 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d0d5b73c/330a6c40f2e94ba9b38108730257cac1/FLAG798652074 [2022-02-21 04:18:54,406 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:54,406 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2022-02-21 04:18:54,417 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d0d5b73c/330a6c40f2e94ba9b38108730257cac1/FLAG798652074 [2022-02-21 04:18:54,820 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d0d5b73c/330a6c40f2e94ba9b38108730257cac1 [2022-02-21 04:18:54,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:54,830 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:54,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:54,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:54,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:54,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:54" (1/1) ... [2022-02-21 04:18:54,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6440f99f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:54, skipping insertion in model container [2022-02-21 04:18:54,836 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:54" (1/1) ... [2022-02-21 04:18:54,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:54,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:55,087 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_spec5_product53.cil.c[17915,17928] [2022-02-21 04:18:55,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:55,100 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:55,159 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_spec5_product53.cil.c[17915,17928] [2022-02-21 04:18:55,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:55,182 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:55,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55 WrapperNode [2022-02-21 04:18:55,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:55,184 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:55,184 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:55,184 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:55,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,244 INFO L137 Inliner]: procedures = 58, calls = 161, calls flagged for inlining = 58, calls inlined = 144, statements flattened = 1041 [2022-02-21 04:18:55,245 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:55,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:55,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:55,246 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:55,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:55,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:55,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:55,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:55,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:55,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:55,328 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 04:18:55,331 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 04:18:55,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:55,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:55,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:55,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:55,413 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:55,415 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:56,000 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:56,008 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:56,008 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:56,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:56 BoogieIcfgContainer [2022-02-21 04:18:56,009 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:56,010 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:56,010 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:56,016 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:56,018 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:56,018 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:54" (1/3) ... [2022-02-21 04:18:56,019 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a5cc1b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:56, skipping insertion in model container [2022-02-21 04:18:56,019 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:56,019 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (2/3) ... [2022-02-21 04:18:56,019 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a5cc1b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:56, skipping insertion in model container [2022-02-21 04:18:56,019 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:56,020 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:56" (3/3) ... [2022-02-21 04:18:56,021 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product53.cil.c [2022-02-21 04:18:56,052 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:56,052 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:56,052 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:56,052 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:56,052 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:56,052 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:56,053 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:56,053 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:56,083 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 280 states, 279 states have (on average 1.3691756272401434) internal successors, (382), 279 states have internal predecessors, (382), 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 04:18:56,170 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 182 [2022-02-21 04:18:56,171 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:56,171 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:56,175 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:56,176 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:56,176 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:56,178 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 280 states, 279 states have (on average 1.3691756272401434) internal successors, (382), 279 states have internal predecessors, (382), 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 04:18:56,202 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 182 [2022-02-21 04:18:56,203 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:56,203 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:56,204 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:56,204 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:56,211 INFO L791 eck$LassoCheckResult]: Stem: 266#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 169#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~10#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 248#L679true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 100#L672true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 53#L687true main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 30#L894true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 79#L870true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 11#L768true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 114#L705-2true [2022-02-21 04:18:56,212 INFO L793 eck$LassoCheckResult]: Loop: 114#L705-2true assume !false; 257#L706true assume test_~splverifierCounter~0#1 < 4; 212#L707true test_~tmp~8#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 18#L715true assume !(0 != test_~tmp~8#1); 136#L715-2true test_~tmp___0~2#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 12#L725true assume !(0 != test_~tmp___0~2#1); 22#L725-2true test_~tmp___2~0#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 274#L735true assume 0 != test_~tmp___2~0#1; 211#L741-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; 145#L575true __utac_acc__Specification5_spec__2_#t~ret46#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret46#1;havoc __utac_acc__Specification5_spec__2_#t~ret46#1; 146#L778true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 236#L438true assume !(0 != ~pumpRunning~0); 245#L438-2true assume !(0 != ~systemActive~0); 173#L445-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 198#L992true __utac_acc__Specification5_spec__3_#t~ret47#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret47#1;havoc __utac_acc__Specification5_spec__3_#t~ret47#1; 66#L789true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 186#L789-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 134#L455true assume { :end_inline_timeShift } true; 114#L705-2true [2022-02-21 04:18:56,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:56,219 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:18:56,225 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:56,226 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138636220] [2022-02-21 04:18:56,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:56,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:56,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:56,362 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:56,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:56,415 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:56,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:56,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1456241548, now seen corresponding path program 1 times [2022-02-21 04:18:56,418 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:56,419 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771094292] [2022-02-21 04:18:56,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:56,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:56,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:56,437 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:56,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:56,442 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:56,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:56,443 INFO L85 PathProgramCache]: Analyzing trace with hash 116889141, now seen corresponding path program 1 times [2022-02-21 04:18:56,443 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:56,443 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460323886] [2022-02-21 04:18:56,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:56,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:56,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:56,544 INFO L290 TraceCheckUtils]: 0: Hoare triple {288#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {290#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:56,547 INFO L290 TraceCheckUtils]: 1: Hoare triple {290#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~10#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; {290#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:56,548 INFO L290 TraceCheckUtils]: 2: Hoare triple {290#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {290#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:56,548 INFO L290 TraceCheckUtils]: 3: Hoare triple {290#(= 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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; {291#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:18:56,549 INFO L290 TraceCheckUtils]: 4: Hoare triple {291#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret49#1;havoc main_#t~ret49#1; {292#(= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0)} is VALID [2022-02-21 04:18:56,549 INFO L290 TraceCheckUtils]: 5: Hoare triple {292#(= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0)} assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; {293#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,549 INFO L290 TraceCheckUtils]: 6: Hoare triple {293#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; {293#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,550 INFO L290 TraceCheckUtils]: 7: Hoare triple {293#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {293#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,551 INFO L290 TraceCheckUtils]: 8: Hoare triple {293#(not (= 0 ~systemActive~0))} assume !false; {293#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,551 INFO L290 TraceCheckUtils]: 9: Hoare triple {293#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {293#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,552 INFO L290 TraceCheckUtils]: 10: Hoare triple {293#(not (= 0 ~systemActive~0))} test_~tmp~8#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; {293#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,552 INFO L290 TraceCheckUtils]: 11: Hoare triple {293#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~8#1); {293#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,553 INFO L290 TraceCheckUtils]: 12: Hoare triple {293#(not (= 0 ~systemActive~0))} test_~tmp___0~2#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; {293#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,553 INFO L290 TraceCheckUtils]: 13: Hoare triple {293#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~2#1); {293#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,554 INFO L290 TraceCheckUtils]: 14: Hoare triple {293#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; {293#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,556 INFO L290 TraceCheckUtils]: 15: Hoare triple {293#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {293#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,560 INFO L290 TraceCheckUtils]: 16: Hoare triple {293#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; {293#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,560 INFO L290 TraceCheckUtils]: 17: Hoare triple {293#(not (= 0 ~systemActive~0))} __utac_acc__Specification5_spec__2_#t~ret46#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret46#1;havoc __utac_acc__Specification5_spec__2_#t~ret46#1; {293#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,560 INFO L290 TraceCheckUtils]: 18: Hoare triple {293#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {293#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,561 INFO L290 TraceCheckUtils]: 19: Hoare triple {293#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {293#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:56,562 INFO L290 TraceCheckUtils]: 20: Hoare triple {293#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {289#false} is VALID [2022-02-21 04:18:56,562 INFO L290 TraceCheckUtils]: 21: Hoare triple {289#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; {289#false} is VALID [2022-02-21 04:18:56,562 INFO L290 TraceCheckUtils]: 22: Hoare triple {289#false} __utac_acc__Specification5_spec__3_#t~ret47#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret47#1;havoc __utac_acc__Specification5_spec__3_#t~ret47#1; {289#false} is VALID [2022-02-21 04:18:56,562 INFO L290 TraceCheckUtils]: 23: Hoare triple {289#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); {289#false} is VALID [2022-02-21 04:18:56,562 INFO L290 TraceCheckUtils]: 24: Hoare triple {289#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {289#false} is VALID [2022-02-21 04:18:56,562 INFO L290 TraceCheckUtils]: 25: Hoare triple {289#false} assume { :end_inline_timeShift } true; {289#false} is VALID [2022-02-21 04:18:56,563 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 04:18:56,564 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:56,564 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460323886] [2022-02-21 04:18:56,565 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460323886] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:56,565 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:56,565 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:56,565 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083354295] [2022-02-21 04:18:56,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:56,703 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:56,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:18:56,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:18:56,722 INFO L87 Difference]: Start difference. First operand has 280 states, 279 states have (on average 1.3691756272401434) internal successors, (382), 279 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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 04:18:57,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:57,251 INFO L93 Difference]: Finished difference Result 277 states and 368 transitions. [2022-02-21 04:18:57,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:18:57,252 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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 04:18:57,277 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:57,283 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 277 states and 368 transitions. [2022-02-21 04:18:57,293 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 178 [2022-02-21 04:18:57,305 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 277 states to 267 states and 358 transitions. [2022-02-21 04:18:57,305 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 267 [2022-02-21 04:18:57,306 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 267 [2022-02-21 04:18:57,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 267 states and 358 transitions. [2022-02-21 04:18:57,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:57,308 INFO L681 BuchiCegarLoop]: Abstraction has 267 states and 358 transitions. [2022-02-21 04:18:57,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states and 358 transitions. [2022-02-21 04:18:57,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2022-02-21 04:18:57,332 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:57,333 INFO L82 GeneralOperation]: Start isEquivalent. First operand 267 states and 358 transitions. Second operand has 267 states, 267 states have (on average 1.3408239700374531) internal successors, (358), 266 states have internal predecessors, (358), 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 04:18:57,334 INFO L74 IsIncluded]: Start isIncluded. First operand 267 states and 358 transitions. Second operand has 267 states, 267 states have (on average 1.3408239700374531) internal successors, (358), 266 states have internal predecessors, (358), 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 04:18:57,335 INFO L87 Difference]: Start difference. First operand 267 states and 358 transitions. Second operand has 267 states, 267 states have (on average 1.3408239700374531) internal successors, (358), 266 states have internal predecessors, (358), 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 04:18:57,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:57,350 INFO L93 Difference]: Finished difference Result 267 states and 358 transitions. [2022-02-21 04:18:57,351 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 358 transitions. [2022-02-21 04:18:57,352 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:57,352 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:57,353 INFO L74 IsIncluded]: Start isIncluded. First operand has 267 states, 267 states have (on average 1.3408239700374531) internal successors, (358), 266 states have internal predecessors, (358), 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 267 states and 358 transitions. [2022-02-21 04:18:57,354 INFO L87 Difference]: Start difference. First operand has 267 states, 267 states have (on average 1.3408239700374531) internal successors, (358), 266 states have internal predecessors, (358), 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 267 states and 358 transitions. [2022-02-21 04:18:57,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:57,365 INFO L93 Difference]: Finished difference Result 267 states and 358 transitions. [2022-02-21 04:18:57,366 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 358 transitions. [2022-02-21 04:18:57,367 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:57,367 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:57,367 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:57,367 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:57,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 267 states have (on average 1.3408239700374531) internal successors, (358), 266 states have internal predecessors, (358), 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 04:18:57,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 358 transitions. [2022-02-21 04:18:57,374 INFO L704 BuchiCegarLoop]: Abstraction has 267 states and 358 transitions. [2022-02-21 04:18:57,374 INFO L587 BuchiCegarLoop]: Abstraction has 267 states and 358 transitions. [2022-02-21 04:18:57,374 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:57,374 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 267 states and 358 transitions. [2022-02-21 04:18:57,375 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 178 [2022-02-21 04:18:57,375 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:57,375 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:57,376 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:57,376 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] [2022-02-21 04:18:57,376 INFO L791 eck$LassoCheckResult]: Stem: 839#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 799#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~10#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 800#L679 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 732#L672 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 674#L687 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 630#L894 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 631#L870 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 593#L768 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 594#L705-2 [2022-02-21 04:18:57,376 INFO L793 eck$LassoCheckResult]: Loop: 594#L705-2 assume !false; 748#L706 assume test_~splverifierCounter~0#1 < 4; 826#L707 test_~tmp~8#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 607#L715 assume !(0 != test_~tmp~8#1); 609#L715-2 test_~tmp___0~2#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 595#L725 assume !(0 != test_~tmp___0~2#1); 597#L725-2 test_~tmp___2~0#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 616#L735 assume 0 != test_~tmp___2~0#1; 752#L741-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; 779#L575 __utac_acc__Specification5_spec__2_#t~ret46#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret46#1;havoc __utac_acc__Specification5_spec__2_#t~ret46#1; 780#L778 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 781#L438 assume !(0 != ~pumpRunning~0); 691#L438-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 835#L522 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret30#1, isMethaneAlarm_~retValue_acc~3#1;havoc isMethaneAlarm_~retValue_acc~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 587#L960 isMethaneAlarm_#t~ret30#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~3#1 := isMethaneAlarm_#t~ret30#1;havoc isMethaneAlarm_#t~ret30#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~3#1; 588#L566 processEnvironment_#t~ret29#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret29#1;havoc processEnvironment_#t~ret29#1; 736#L526 assume 0 != processEnvironment_~tmp~5#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 834#L556 assume { :end_inline_deactivatePump } true; 614#L522-1 assume { :end_inline_processEnvironment } true; 615#L445-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 803#L992 __utac_acc__Specification5_spec__3_#t~ret47#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret47#1;havoc __utac_acc__Specification5_spec__3_#t~ret47#1; 695#L789 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 696#L789-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 768#L455 assume { :end_inline_timeShift } true; 594#L705-2 [2022-02-21 04:18:57,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:57,377 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:18:57,377 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:57,377 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908601667] [2022-02-21 04:18:57,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:57,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:57,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:57,388 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:57,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:57,406 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:57,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:57,407 INFO L85 PathProgramCache]: Analyzing trace with hash -803845163, now seen corresponding path program 1 times [2022-02-21 04:18:57,407 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:57,407 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834857929] [2022-02-21 04:18:57,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:57,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:57,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:57,443 INFO L290 TraceCheckUtils]: 0: Hoare triple {1381#true} assume !false; {1381#true} is VALID [2022-02-21 04:18:57,443 INFO L290 TraceCheckUtils]: 1: Hoare triple {1381#true} assume test_~splverifierCounter~0#1 < 4; {1381#true} is VALID [2022-02-21 04:18:57,443 INFO L290 TraceCheckUtils]: 2: Hoare triple {1381#true} test_~tmp~8#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; {1381#true} is VALID [2022-02-21 04:18:57,443 INFO L290 TraceCheckUtils]: 3: Hoare triple {1381#true} assume !(0 != test_~tmp~8#1); {1381#true} is VALID [2022-02-21 04:18:57,443 INFO L290 TraceCheckUtils]: 4: Hoare triple {1381#true} test_~tmp___0~2#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; {1381#true} is VALID [2022-02-21 04:18:57,443 INFO L290 TraceCheckUtils]: 5: Hoare triple {1381#true} assume !(0 != test_~tmp___0~2#1); {1381#true} is VALID [2022-02-21 04:18:57,443 INFO L290 TraceCheckUtils]: 6: Hoare triple {1381#true} test_~tmp___2~0#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; {1381#true} is VALID [2022-02-21 04:18:57,444 INFO L290 TraceCheckUtils]: 7: Hoare triple {1381#true} assume 0 != test_~tmp___2~0#1; {1381#true} is VALID [2022-02-21 04:18:57,444 INFO L290 TraceCheckUtils]: 8: Hoare triple {1381#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; {1381#true} is VALID [2022-02-21 04:18:57,444 INFO L290 TraceCheckUtils]: 9: Hoare triple {1381#true} __utac_acc__Specification5_spec__2_#t~ret46#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret46#1;havoc __utac_acc__Specification5_spec__2_#t~ret46#1; {1381#true} is VALID [2022-02-21 04:18:57,444 INFO L290 TraceCheckUtils]: 10: Hoare triple {1381#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {1381#true} is VALID [2022-02-21 04:18:57,444 INFO L290 TraceCheckUtils]: 11: Hoare triple {1381#true} assume !(0 != ~pumpRunning~0); {1383#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:57,444 INFO L290 TraceCheckUtils]: 12: Hoare triple {1383#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; {1383#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:57,445 INFO L290 TraceCheckUtils]: 13: Hoare triple {1383#(= ~pumpRunning~0 0)} assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret30#1, isMethaneAlarm_~retValue_acc~3#1;havoc isMethaneAlarm_~retValue_acc~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; {1382#false} is VALID [2022-02-21 04:18:57,445 INFO L290 TraceCheckUtils]: 14: Hoare triple {1382#false} isMethaneAlarm_#t~ret30#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~3#1 := isMethaneAlarm_#t~ret30#1;havoc isMethaneAlarm_#t~ret30#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~3#1; {1382#false} is VALID [2022-02-21 04:18:57,445 INFO L290 TraceCheckUtils]: 15: Hoare triple {1382#false} processEnvironment_#t~ret29#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret29#1;havoc processEnvironment_#t~ret29#1; {1382#false} is VALID [2022-02-21 04:18:57,445 INFO L290 TraceCheckUtils]: 16: Hoare triple {1382#false} assume 0 != processEnvironment_~tmp~5#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; {1382#false} is VALID [2022-02-21 04:18:57,445 INFO L290 TraceCheckUtils]: 17: Hoare triple {1382#false} assume { :end_inline_deactivatePump } true; {1382#false} is VALID [2022-02-21 04:18:57,445 INFO L290 TraceCheckUtils]: 18: Hoare triple {1382#false} assume { :end_inline_processEnvironment } true; {1382#false} is VALID [2022-02-21 04:18:57,445 INFO L290 TraceCheckUtils]: 19: Hoare triple {1382#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; {1382#false} is VALID [2022-02-21 04:18:57,446 INFO L290 TraceCheckUtils]: 20: Hoare triple {1382#false} __utac_acc__Specification5_spec__3_#t~ret47#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret47#1;havoc __utac_acc__Specification5_spec__3_#t~ret47#1; {1382#false} is VALID [2022-02-21 04:18:57,446 INFO L290 TraceCheckUtils]: 21: Hoare triple {1382#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); {1382#false} is VALID [2022-02-21 04:18:57,446 INFO L290 TraceCheckUtils]: 22: Hoare triple {1382#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {1382#false} is VALID [2022-02-21 04:18:57,446 INFO L290 TraceCheckUtils]: 23: Hoare triple {1382#false} assume { :end_inline_timeShift } true; {1382#false} is VALID [2022-02-21 04:18:57,446 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 04:18:57,446 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:57,446 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834857929] [2022-02-21 04:18:57,446 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834857929] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:57,446 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:57,446 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:57,447 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899805402] [2022-02-21 04:18:57,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:57,447 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:57,447 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:57,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:57,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:57,448 INFO L87 Difference]: Start difference. First operand 267 states and 358 transitions. cyclomatic complexity: 93 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:57,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:57,678 INFO L93 Difference]: Finished difference Result 286 states and 363 transitions. [2022-02-21 04:18:57,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:57,678 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:57,691 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:57,692 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 286 states and 363 transitions. [2022-02-21 04:18:57,698 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 196 [2022-02-21 04:18:57,705 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 286 states to 286 states and 363 transitions. [2022-02-21 04:18:57,705 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 286 [2022-02-21 04:18:57,705 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 286 [2022-02-21 04:18:57,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 286 states and 363 transitions. [2022-02-21 04:18:57,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:57,706 INFO L681 BuchiCegarLoop]: Abstraction has 286 states and 363 transitions. [2022-02-21 04:18:57,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states and 363 transitions. [2022-02-21 04:18:57,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2022-02-21 04:18:57,713 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:57,714 INFO L82 GeneralOperation]: Start isEquivalent. First operand 286 states and 363 transitions. Second operand has 286 states, 286 states have (on average 1.2692307692307692) internal successors, (363), 285 states have internal predecessors, (363), 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 04:18:57,714 INFO L74 IsIncluded]: Start isIncluded. First operand 286 states and 363 transitions. Second operand has 286 states, 286 states have (on average 1.2692307692307692) internal successors, (363), 285 states have internal predecessors, (363), 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 04:18:57,715 INFO L87 Difference]: Start difference. First operand 286 states and 363 transitions. Second operand has 286 states, 286 states have (on average 1.2692307692307692) internal successors, (363), 285 states have internal predecessors, (363), 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 04:18:57,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:57,721 INFO L93 Difference]: Finished difference Result 286 states and 363 transitions. [2022-02-21 04:18:57,721 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 363 transitions. [2022-02-21 04:18:57,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:57,722 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:57,722 INFO L74 IsIncluded]: Start isIncluded. First operand has 286 states, 286 states have (on average 1.2692307692307692) internal successors, (363), 285 states have internal predecessors, (363), 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 286 states and 363 transitions. [2022-02-21 04:18:57,723 INFO L87 Difference]: Start difference. First operand has 286 states, 286 states have (on average 1.2692307692307692) internal successors, (363), 285 states have internal predecessors, (363), 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 286 states and 363 transitions. [2022-02-21 04:18:57,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:57,732 INFO L93 Difference]: Finished difference Result 286 states and 363 transitions. [2022-02-21 04:18:57,732 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 363 transitions. [2022-02-21 04:18:57,733 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:57,734 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:57,734 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:57,734 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:57,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 286 states have (on average 1.2692307692307692) internal successors, (363), 285 states have internal predecessors, (363), 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 04:18:57,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 363 transitions. [2022-02-21 04:18:57,743 INFO L704 BuchiCegarLoop]: Abstraction has 286 states and 363 transitions. [2022-02-21 04:18:57,743 INFO L587 BuchiCegarLoop]: Abstraction has 286 states and 363 transitions. [2022-02-21 04:18:57,743 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:57,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 286 states and 363 transitions. [2022-02-21 04:18:57,745 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 196 [2022-02-21 04:18:57,745 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:57,745 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:57,746 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:57,746 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:57,751 INFO L791 eck$LassoCheckResult]: Stem: 1890#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1845#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~10#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 1846#L679 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1792#L672 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 1746#L687 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 1709#L894 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1710#L870 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1685#L768 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1686#L705-2 [2022-02-21 04:18:57,751 INFO L793 eck$LassoCheckResult]: Loop: 1686#L705-2 assume !false; 1802#L706 assume test_~splverifierCounter~0#1 < 4; 1876#L707 test_~tmp~8#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 1694#L715 assume !(0 != test_~tmp~8#1); 1696#L715-2 test_~tmp___0~2#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 1687#L725 assume !(0 != test_~tmp___0~2#1); 1689#L725-2 test_~tmp___2~0#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 1703#L735 assume 0 != test_~tmp___2~0#1; 1806#L741-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; 1828#L575 __utac_acc__Specification5_spec__2_#t~ret46#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret46#1;havoc __utac_acc__Specification5_spec__2_#t~ret46#1; 1829#L778 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1830#L438 assume !(0 != ~pumpRunning~0); 1882#L438-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1884#L522 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret28#1, processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4#1; 1777#L496-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret27#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1; 1778#L470-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret39#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1; 1864#L1000-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; 1865#L1005-3 isHighWaterLevel_#t~ret39#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret39#1;havoc isHighWaterLevel_#t~ret39#1; 1812#L624-9 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1813#L624-11 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 1868#L630-3 processEnvironment__wrappee__highWaterSensor_#t~ret27#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~3#1 := processEnvironment__wrappee__highWaterSensor_#t~ret27#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret27#1; 1809#L474-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1787#L462-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1788#L470-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1819#L496-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1701#L522-1 assume { :end_inline_processEnvironment } true; 1702#L445-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 1848#L992 __utac_acc__Specification5_spec__3_#t~ret47#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret47#1;havoc __utac_acc__Specification5_spec__3_#t~ret47#1; 1761#L789 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 1762#L789-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1820#L455 assume { :end_inline_timeShift } true; 1686#L705-2 [2022-02-21 04:18:57,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:57,752 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:18:57,753 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:57,753 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805780558] [2022-02-21 04:18:57,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:57,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:57,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:57,776 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:57,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:57,784 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:57,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:57,785 INFO L85 PathProgramCache]: Analyzing trace with hash 778017780, now seen corresponding path program 1 times [2022-02-21 04:18:57,785 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:57,785 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604218392] [2022-02-21 04:18:57,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:57,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:57,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:57,816 INFO L290 TraceCheckUtils]: 0: Hoare triple {2533#true} assume !false; {2533#true} is VALID [2022-02-21 04:18:57,817 INFO L290 TraceCheckUtils]: 1: Hoare triple {2533#true} assume test_~splverifierCounter~0#1 < 4; {2533#true} is VALID [2022-02-21 04:18:57,817 INFO L290 TraceCheckUtils]: 2: Hoare triple {2533#true} test_~tmp~8#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; {2533#true} is VALID [2022-02-21 04:18:57,817 INFO L290 TraceCheckUtils]: 3: Hoare triple {2533#true} assume !(0 != test_~tmp~8#1); {2533#true} is VALID [2022-02-21 04:18:57,817 INFO L290 TraceCheckUtils]: 4: Hoare triple {2533#true} test_~tmp___0~2#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; {2533#true} is VALID [2022-02-21 04:18:57,817 INFO L290 TraceCheckUtils]: 5: Hoare triple {2533#true} assume !(0 != test_~tmp___0~2#1); {2533#true} is VALID [2022-02-21 04:18:57,817 INFO L290 TraceCheckUtils]: 6: Hoare triple {2533#true} test_~tmp___2~0#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; {2533#true} is VALID [2022-02-21 04:18:57,817 INFO L290 TraceCheckUtils]: 7: Hoare triple {2533#true} assume 0 != test_~tmp___2~0#1; {2533#true} is VALID [2022-02-21 04:18:57,817 INFO L290 TraceCheckUtils]: 8: Hoare triple {2533#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; {2533#true} is VALID [2022-02-21 04:18:57,817 INFO L290 TraceCheckUtils]: 9: Hoare triple {2533#true} __utac_acc__Specification5_spec__2_#t~ret46#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret46#1;havoc __utac_acc__Specification5_spec__2_#t~ret46#1; {2533#true} is VALID [2022-02-21 04:18:57,818 INFO L290 TraceCheckUtils]: 10: Hoare triple {2533#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {2533#true} is VALID [2022-02-21 04:18:57,818 INFO L290 TraceCheckUtils]: 11: Hoare triple {2533#true} assume !(0 != ~pumpRunning~0); {2533#true} is VALID [2022-02-21 04:18:57,818 INFO L290 TraceCheckUtils]: 12: Hoare triple {2533#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; {2533#true} is VALID [2022-02-21 04:18:57,818 INFO L290 TraceCheckUtils]: 13: Hoare triple {2533#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret28#1, processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4#1; {2533#true} is VALID [2022-02-21 04:18:57,818 INFO L290 TraceCheckUtils]: 14: Hoare triple {2533#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret27#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1; {2533#true} is VALID [2022-02-21 04:18:57,818 INFO L290 TraceCheckUtils]: 15: Hoare triple {2533#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret39#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1; {2533#true} is VALID [2022-02-21 04:18:57,819 INFO L290 TraceCheckUtils]: 16: Hoare triple {2533#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; {2535#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:57,819 INFO L290 TraceCheckUtils]: 17: Hoare triple {2535#(<= ~waterLevel~0 1)} isHighWaterLevel_#t~ret39#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret39#1;havoc isHighWaterLevel_#t~ret39#1; {2535#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:57,819 INFO L290 TraceCheckUtils]: 18: Hoare triple {2535#(<= ~waterLevel~0 1)} assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~0#1 := 0; {2535#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:57,820 INFO L290 TraceCheckUtils]: 19: Hoare triple {2535#(<= ~waterLevel~0 1)} isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; {2535#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:57,820 INFO L290 TraceCheckUtils]: 20: Hoare triple {2535#(<= ~waterLevel~0 1)} processEnvironment__wrappee__highWaterSensor_#t~ret27#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~3#1 := processEnvironment__wrappee__highWaterSensor_#t~ret27#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret27#1; {2535#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:57,820 INFO L290 TraceCheckUtils]: 21: Hoare triple {2535#(<= ~waterLevel~0 1)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {2535#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:57,820 INFO L290 TraceCheckUtils]: 22: Hoare triple {2535#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__base } true; {2535#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:57,821 INFO L290 TraceCheckUtils]: 23: Hoare triple {2535#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {2535#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:57,821 INFO L290 TraceCheckUtils]: 24: Hoare triple {2535#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; {2535#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:57,821 INFO L290 TraceCheckUtils]: 25: Hoare triple {2535#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment } true; {2535#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:57,822 INFO L290 TraceCheckUtils]: 26: Hoare triple {2535#(<= ~waterLevel~0 1)} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; {2536#(<= |ULTIMATE.start_getWaterLevel_#res#1| 1)} is VALID [2022-02-21 04:18:57,822 INFO L290 TraceCheckUtils]: 27: Hoare triple {2536#(<= |ULTIMATE.start_getWaterLevel_#res#1| 1)} __utac_acc__Specification5_spec__3_#t~ret47#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret47#1;havoc __utac_acc__Specification5_spec__3_#t~ret47#1; {2537#(<= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~9#1| 1)} is VALID [2022-02-21 04:18:57,822 INFO L290 TraceCheckUtils]: 28: Hoare triple {2537#(<= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~9#1| 1)} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); {2534#false} is VALID [2022-02-21 04:18:57,823 INFO L290 TraceCheckUtils]: 29: Hoare triple {2534#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {2534#false} is VALID [2022-02-21 04:18:57,823 INFO L290 TraceCheckUtils]: 30: Hoare triple {2534#false} assume { :end_inline_timeShift } true; {2534#false} is VALID [2022-02-21 04:18:57,823 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 04:18:57,823 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:57,823 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604218392] [2022-02-21 04:18:57,823 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604218392] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:57,823 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:57,823 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:57,823 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85084377] [2022-02-21 04:18:57,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:57,824 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:57,824 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:57,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:57,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:57,824 INFO L87 Difference]: Start difference. First operand 286 states and 363 transitions. cyclomatic complexity: 79 Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:58,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:58,787 INFO L93 Difference]: Finished difference Result 841 states and 1045 transitions. [2022-02-21 04:18:58,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:58,787 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:58,805 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:58,807 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 841 states and 1045 transitions. [2022-02-21 04:18:58,843 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 531 [2022-02-21 04:18:58,864 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 841 states to 841 states and 1045 transitions. [2022-02-21 04:18:58,864 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 841 [2022-02-21 04:18:58,864 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 841 [2022-02-21 04:18:58,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 841 states and 1045 transitions. [2022-02-21 04:18:58,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:58,865 INFO L681 BuchiCegarLoop]: Abstraction has 841 states and 1045 transitions. [2022-02-21 04:18:58,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states and 1045 transitions. [2022-02-21 04:18:58,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 562. [2022-02-21 04:18:58,875 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:58,876 INFO L82 GeneralOperation]: Start isEquivalent. First operand 841 states and 1045 transitions. Second operand has 562 states, 562 states have (on average 1.2437722419928825) internal successors, (699), 561 states have internal predecessors, (699), 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 04:18:58,877 INFO L74 IsIncluded]: Start isIncluded. First operand 841 states and 1045 transitions. Second operand has 562 states, 562 states have (on average 1.2437722419928825) internal successors, (699), 561 states have internal predecessors, (699), 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 04:18:58,877 INFO L87 Difference]: Start difference. First operand 841 states and 1045 transitions. Second operand has 562 states, 562 states have (on average 1.2437722419928825) internal successors, (699), 561 states have internal predecessors, (699), 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 04:18:58,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:58,896 INFO L93 Difference]: Finished difference Result 841 states and 1045 transitions. [2022-02-21 04:18:58,896 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1045 transitions. [2022-02-21 04:18:58,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:58,897 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:58,898 INFO L74 IsIncluded]: Start isIncluded. First operand has 562 states, 562 states have (on average 1.2437722419928825) internal successors, (699), 561 states have internal predecessors, (699), 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 841 states and 1045 transitions. [2022-02-21 04:18:58,899 INFO L87 Difference]: Start difference. First operand has 562 states, 562 states have (on average 1.2437722419928825) internal successors, (699), 561 states have internal predecessors, (699), 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 841 states and 1045 transitions. [2022-02-21 04:18:58,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:58,919 INFO L93 Difference]: Finished difference Result 841 states and 1045 transitions. [2022-02-21 04:18:58,919 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1045 transitions. [2022-02-21 04:18:58,920 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:58,920 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:58,920 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:58,920 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:58,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 562 states have (on average 1.2437722419928825) internal successors, (699), 561 states have internal predecessors, (699), 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 04:18:58,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 699 transitions. [2022-02-21 04:18:58,931 INFO L704 BuchiCegarLoop]: Abstraction has 562 states and 699 transitions. [2022-02-21 04:18:58,931 INFO L587 BuchiCegarLoop]: Abstraction has 562 states and 699 transitions. [2022-02-21 04:18:58,931 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:18:58,931 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 562 states and 699 transitions. [2022-02-21 04:18:58,933 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 390 [2022-02-21 04:18:58,933 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:58,933 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:58,933 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:58,933 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:58,934 INFO L791 eck$LassoCheckResult]: Stem: 3617#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 3565#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~10#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 3566#L679 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3511#L672 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 3464#L687 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 3426#L894 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 3427#L870 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 3402#L768 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3403#L705-2 [2022-02-21 04:18:58,934 INFO L793 eck$LassoCheckResult]: Loop: 3403#L705-2 assume !false; 3521#L706 assume test_~splverifierCounter~0#1 < 4; 3600#L707 test_~tmp~8#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 3411#L715 assume !(0 != test_~tmp~8#1); 3413#L715-2 test_~tmp___0~2#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 3404#L725 assume !(0 != test_~tmp___0~2#1); 3406#L725-2 test_~tmp___2~0#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 3420#L735 assume 0 != test_~tmp___2~0#1; 3525#L741-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; 3547#L575 __utac_acc__Specification5_spec__2_#t~ret46#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret46#1;havoc __utac_acc__Specification5_spec__2_#t~ret46#1; 3548#L778 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 3549#L438 assume !(0 != ~pumpRunning~0); 3609#L438-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 3612#L522 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret28#1, processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4#1; 3495#L496-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret27#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1; 3496#L470-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret39#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1; 3588#L1000-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; 3589#L1005-3 isHighWaterLevel_#t~ret39#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret39#1;havoc isHighWaterLevel_#t~ret39#1; 3529#L624-9 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~0#1 := 0; 3530#L624-11 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 3594#L630-3 processEnvironment__wrappee__highWaterSensor_#t~ret27#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~3#1 := processEnvironment__wrappee__highWaterSensor_#t~ret27#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret27#1; 3527#L474-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3506#L462-6 assume { :end_inline_processEnvironment__wrappee__base } true; 3507#L470-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3945#L496-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 3619#L522-1 assume { :end_inline_processEnvironment } true; 3569#L445-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 3570#L992 __utac_acc__Specification5_spec__3_#t~ret47#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret47#1;havoc __utac_acc__Specification5_spec__3_#t~ret47#1; 3479#L789 assume 2 != __utac_acc__Specification5_spec__3_~tmp~9#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; 3432#L575-1 __utac_acc__Specification5_spec__3_#t~ret48#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~3#1 := __utac_acc__Specification5_spec__3_#t~ret48#1;havoc __utac_acc__Specification5_spec__3_#t~ret48#1; 3433#L793 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3#1); 3567#L789-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 3539#L455 assume { :end_inline_timeShift } true; 3403#L705-2 [2022-02-21 04:18:58,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:58,934 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-02-21 04:18:58,935 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:58,935 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619469519] [2022-02-21 04:18:58,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:58,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:58,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:58,942 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:58,949 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:58,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:58,949 INFO L85 PathProgramCache]: Analyzing trace with hash 331684399, now seen corresponding path program 1 times [2022-02-21 04:18:58,949 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:58,949 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308847761] [2022-02-21 04:18:58,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:58,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:58,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:58,956 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:58,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:58,962 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:58,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:58,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1645099110, now seen corresponding path program 1 times [2022-02-21 04:18:58,963 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:58,963 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727553808] [2022-02-21 04:18:58,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:58,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:58,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:58,973 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:58,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:58,985 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:01,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:19:01 BoogieIcfgContainer [2022-02-21 04:19:01,534 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:19:01,534 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:19:01,534 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:19:01,534 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:19:01,535 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:56" (3/4) ... [2022-02-21 04:19:01,536 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:19:01,577 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:19:01,585 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:19:01,586 INFO L158 Benchmark]: Toolchain (without parser) took 6755.35ms. Allocated memory was 104.9MB in the beginning and 186.6MB in the end (delta: 81.8MB). Free memory was 73.9MB in the beginning and 107.5MB in the end (delta: -33.7MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. [2022-02-21 04:19:01,586 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 104.9MB. Free memory was 60.7MB in the beginning and 60.6MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:19:01,586 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.83ms. Allocated memory is still 104.9MB. Free memory was 73.7MB in the beginning and 70.3MB in the end (delta: 3.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-21 04:19:01,586 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.38ms. Allocated memory is still 104.9MB. Free memory was 70.3MB in the beginning and 64.4MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:19:01,587 INFO L158 Benchmark]: Boogie Preprocessor took 44.97ms. Allocated memory is still 104.9MB. Free memory was 64.4MB in the beginning and 60.6MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:19:01,587 INFO L158 Benchmark]: RCFGBuilder took 718.35ms. Allocated memory was 104.9MB in the beginning and 127.9MB in the end (delta: 23.1MB). Free memory was 60.6MB in the beginning and 77.4MB in the end (delta: -16.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-02-21 04:19:01,587 INFO L158 Benchmark]: BuchiAutomizer took 5523.59ms. Allocated memory was 127.9MB in the beginning and 186.6MB in the end (delta: 58.7MB). Free memory was 77.4MB in the beginning and 110.6MB in the end (delta: -33.2MB). Peak memory consumption was 86.4MB. Max. memory is 16.1GB. [2022-02-21 04:19:01,587 INFO L158 Benchmark]: Witness Printer took 50.59ms. Allocated memory is still 186.6MB. Free memory was 110.6MB in the beginning and 107.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:19:01,589 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 0.10ms. Allocated memory is still 104.9MB. Free memory was 60.7MB in the beginning and 60.6MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 351.83ms. Allocated memory is still 104.9MB. Free memory was 73.7MB in the beginning and 70.3MB in the end (delta: 3.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.38ms. Allocated memory is still 104.9MB. Free memory was 70.3MB in the beginning and 64.4MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.97ms. Allocated memory is still 104.9MB. Free memory was 64.4MB in the beginning and 60.6MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 718.35ms. Allocated memory was 104.9MB in the beginning and 127.9MB in the end (delta: 23.1MB). Free memory was 60.6MB in the beginning and 77.4MB in the end (delta: -16.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 5523.59ms. Allocated memory was 127.9MB in the beginning and 186.6MB in the end (delta: 58.7MB). Free memory was 77.4MB in the beginning and 110.6MB in the end (delta: -33.2MB). Peak memory consumption was 86.4MB. Max. memory is 16.1GB. * Witness Printer took 50.59ms. Allocated memory is still 186.6MB. Free memory was 110.6MB in the beginning and 107.5MB in the end (delta: 3.0MB). 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 562 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. Construction of modules took 0.1s. Büchi inclusion checks took 1.6s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 279 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 562 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2233 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2233 mSDsluCounter, 2234 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1123 mSDsCounter, 80 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 169 IncrementalHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 80 mSolverCounterUnsat, 1111 mSDtfsCounter, 169 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 705]: 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, tmp___0=0, NULL=0, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16669c41=0, retValue_acc=0, NULL=1, methaneLevelCritical=0, retValue_acc=1, retValue_acc=1, tmp=1, retValue_acc=1, \result=1, \result=1, retValue_acc=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e21261b=0, tmp=1, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2decd27a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77247ab3=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5487ac97=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17572b69=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d84f6e3=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@734d1357=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e5fc23b=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38269145=0, tmp=0, head=0, retValue_acc=0, \result=1, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70c7c4f0=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@191f0bfd=0, tmp=0, tmp=0, \result=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 705]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L426] int pumpRunning = 0; [L427] int systemActive = 1; [L762] int switchedOnBeforeTS ; [L811] int cleanupTimeShifts = 4; [L917] int waterLevel = 1; [L918] int methaneLevelCritical = 0; [L885] int retValue_acc ; [L886] int tmp ; [L890] FCALL select_helpers() [L891] FCALL select_features() [L892] CALL, EXPR valid_product() [L683] int retValue_acc ; [L686] retValue_acc = 1 [L687] return (retValue_acc); [L892] RET, EXPR valid_product() [L892] tmp = valid_product() [L894] COND TRUE \read(tmp) [L896] FCALL setup() [L897] CALL runTest() [L878] CALL __utac_acc__Specification5_spec__1() [L767] switchedOnBeforeTS = 0 [L878] RET __utac_acc__Specification5_spec__1() [L879] CALL test() [L696] int splverifierCounter ; [L697] int tmp ; [L698] int tmp___0 ; [L699] int tmp___1 ; [L700] int tmp___2 ; [L703] splverifierCounter = 0 Loop: [L705] COND TRUE 1 [L707] COND TRUE splverifierCounter < 4 [L713] tmp = __VERIFIER_nondet_int() [L715] COND FALSE !(\read(tmp)) [L723] tmp___0 = __VERIFIER_nondet_int() [L725] COND FALSE !(\read(tmp___0)) [L733] tmp___2 = __VERIFIER_nondet_int() [L735] COND TRUE \read(tmp___2) [L748] CALL timeShift() [L436] CALL __utac_acc__Specification5_spec__2() [L776] CALL, EXPR isPumpRunning() [L571] int retValue_acc ; [L574] retValue_acc = pumpRunning [L575] return (retValue_acc); [L776] RET, EXPR isPumpRunning() [L776] switchedOnBeforeTS = isPumpRunning() [L436] RET __utac_acc__Specification5_spec__2() [L438] COND FALSE !(\read(pumpRunning)) [L445] COND TRUE \read(systemActive) [L447] CALL processEnvironment() [L519] int tmp ; [L522] COND FALSE !(\read(pumpRunning)) [L537] CALL processEnvironment__wrappee__lowWaterSensor() [L493] int tmp ; [L496] COND FALSE !(\read(pumpRunning)) [L511] CALL processEnvironment__wrappee__highWaterSensor() [L467] int tmp ; [L470] COND TRUE ! pumpRunning [L472] CALL, EXPR isHighWaterLevel() [L616] int retValue_acc ; [L617] int tmp ; [L618] int tmp___0 ; [L622] CALL, EXPR isHighWaterSensorDry() [L997] int retValue_acc ; [L1000] COND TRUE waterLevel < 2 [L1001] retValue_acc = 1 [L1002] return (retValue_acc); [L622] RET, EXPR isHighWaterSensorDry() [L622] tmp = isHighWaterSensorDry() [L624] COND TRUE \read(tmp) [L625] tmp___0 = 0 [L629] retValue_acc = tmp___0 [L630] return (retValue_acc); [L472] RET, EXPR isHighWaterLevel() [L472] tmp = isHighWaterLevel() [L474] COND FALSE !(\read(tmp)) [L480] FCALL processEnvironment__wrappee__base() [L511] RET processEnvironment__wrappee__highWaterSensor() [L537] RET processEnvironment__wrappee__lowWaterSensor() [L447] RET processEnvironment() [L453] CALL __utac_acc__Specification5_spec__3() [L782] int tmp ; [L783] int tmp___0 ; [L787] CALL, EXPR getWaterLevel() [L988] int retValue_acc ; [L991] retValue_acc = waterLevel [L992] return (retValue_acc); [L787] RET, EXPR getWaterLevel() [L787] tmp = getWaterLevel() [L789] COND TRUE tmp != 2 [L791] CALL, EXPR isPumpRunning() [L571] int retValue_acc ; [L574] retValue_acc = pumpRunning [L575] return (retValue_acc); [L791] RET, EXPR isPumpRunning() [L791] tmp___0 = isPumpRunning() [L793] COND FALSE !(\read(tmp___0)) [L453] RET __utac_acc__Specification5_spec__3() [L748] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:19:01,678 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)