./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product47.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_product47.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 303db4082dd8b7a60cb4b5043655f09159321046818373497160cd54b8948d04 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:50,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:50,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:50,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:50,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:50,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:50,414 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:50,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:50,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:50,422 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:50,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:50,423 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:50,424 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:50,426 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:50,427 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:50,428 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:50,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:50,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:50,432 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:50,438 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:50,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:50,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:50,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:50,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:50,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:50,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:50,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:50,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:50,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:50,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:50,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:50,460 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:50,461 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:50,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:50,463 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:50,463 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:50,464 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:50,464 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:50,464 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:50,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:50,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:50,465 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:50,508 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:50,508 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:50,509 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:50,515 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:50,516 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:50,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:50,517 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:50,517 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:50,517 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:50,518 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:50,518 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:50,518 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:50,519 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:50,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:50,519 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:50,519 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:50,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:50,519 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:50,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:50,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:50,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:50,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:50,520 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:50,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:50,520 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:50,521 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:50,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:50,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:50,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:50,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:50,521 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:50,522 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:50,522 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 303db4082dd8b7a60cb4b5043655f09159321046818373497160cd54b8948d04 [2022-02-21 04:18:50,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:50,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:50,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:50,743 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:50,743 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:50,744 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c [2022-02-21 04:18:50,791 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95674e4a9/5d8f8affd64e48e9b079bc2503683517/FLAG227b8c75a [2022-02-21 04:18:51,236 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:51,236 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c [2022-02-21 04:18:51,248 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95674e4a9/5d8f8affd64e48e9b079bc2503683517/FLAG227b8c75a [2022-02-21 04:18:51,562 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95674e4a9/5d8f8affd64e48e9b079bc2503683517 [2022-02-21 04:18:51,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:51,565 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:51,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:51,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:51,587 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:51,588 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:51" (1/1) ... [2022-02-21 04:18:51,589 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@783319c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:51, skipping insertion in model container [2022-02-21 04:18:51,590 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:51" (1/1) ... [2022-02-21 04:18:51,594 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:51,639 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:51,826 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_product47.cil.c[1605,1618] [2022-02-21 04:18:51,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:51,938 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:51,947 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_product47.cil.c[1605,1618] [2022-02-21 04:18:52,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:52,048 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:52,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:52 WrapperNode [2022-02-21 04:18:52,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:52,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:52,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:52,053 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:52,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:52" (1/1) ... [2022-02-21 04:18:52,081 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:52" (1/1) ... [2022-02-21 04:18:52,137 INFO L137 Inliner]: procedures = 57, calls = 160, calls flagged for inlining = 57, calls inlined = 104, statements flattened = 754 [2022-02-21 04:18:52,138 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:52,139 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:52,139 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:52,139 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:52,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:52" (1/1) ... [2022-02-21 04:18:52,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:52" (1/1) ... [2022-02-21 04:18:52,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:52" (1/1) ... [2022-02-21 04:18:52,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:52" (1/1) ... [2022-02-21 04:18:52,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:52" (1/1) ... [2022-02-21 04:18:52,162 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:52" (1/1) ... [2022-02-21 04:18:52,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:52" (1/1) ... [2022-02-21 04:18:52,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:52,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:52,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:52,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:52,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:52" (1/1) ... [2022-02-21 04:18:52,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:52,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:52,211 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 04:18:52,219 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 04:18:52,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:52,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:52,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:52,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:52,292 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:52,293 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:52,769 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:52,777 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:52,780 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:52,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:52 BoogieIcfgContainer [2022-02-21 04:18:52,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:52,784 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:52,784 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:52,787 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:52,788 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:52,788 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:51" (1/3) ... [2022-02-21 04:18:52,789 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3165c7aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:52, skipping insertion in model container [2022-02-21 04:18:52,789 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:52,789 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:52" (2/3) ... [2022-02-21 04:18:52,790 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3165c7aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:52, skipping insertion in model container [2022-02-21 04:18:52,790 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:52,790 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:52" (3/3) ... [2022-02-21 04:18:52,791 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product47.cil.c [2022-02-21 04:18:52,830 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:52,831 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:52,831 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:52,831 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:52,831 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:52,831 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:52,831 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:52,831 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:52,854 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 194 states, 193 states have (on average 1.3523316062176165) internal successors, (261), 193 states have internal predecessors, (261), 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 04:18:52,900 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2022-02-21 04:18:52,901 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:52,901 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:52,906 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:52,906 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 04:18:52,906 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:52,910 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 194 states, 193 states have (on average 1.3523316062176165) internal successors, (261), 193 states have internal predecessors, (261), 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 04:18:52,931 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2022-02-21 04:18:52,931 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:52,931 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:52,932 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:52,932 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 04:18:52,936 INFO L791 eck$LassoCheckResult]: Stem: 186#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 122#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 55#L843true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 19#L836true 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; 154#L851true main_#t~ret21#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 29#L441true assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 79#L413true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 101#L863true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 119#L297-2true [2022-02-21 04:18:52,951 INFO L793 eck$LassoCheckResult]: Loop: 119#L297-2true assume !false; 109#L298true assume test_~splverifierCounter~0#1 < 4; 38#L299true test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 150#L307true assume !(0 != test_~tmp~4#1); 22#L307-2true test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 90#L317true assume !(0 != test_~tmp___0~1#1); 43#L317-2true test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 100#L327true assume 0 != test_~tmp___2~0#1; 144#L333-2true 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~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 179#L209true __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; 39#L873true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 188#L81true assume !(0 != ~pumpRunning~0); 164#L81-2true assume !(0 != ~systemActive~0); 74#L88-1true 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___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 93#L981true __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; 105#L884true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 51#L884-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 170#L98true assume { :end_inline_timeShift } true; 119#L297-2true [2022-02-21 04:18:52,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:52,956 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:18:52,963 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:52,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140755614] [2022-02-21 04:18:52,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:52,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:53,086 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:53,139 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:53,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:53,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1358986284, now seen corresponding path program 1 times [2022-02-21 04:18:53,142 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:53,143 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086184970] [2022-02-21 04:18:53,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:53,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:53,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:53,164 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:53,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:53,173 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:53,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:53,175 INFO L85 PathProgramCache]: Analyzing trace with hash 19633877, now seen corresponding path program 1 times [2022-02-21 04:18:53,175 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:53,176 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062603215] [2022-02-21 04:18:53,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:53,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:53,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:53,312 INFO L290 TraceCheckUtils]: 0: Hoare triple {202#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {204#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:53,313 INFO L290 TraceCheckUtils]: 1: Hoare triple {204#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; {204#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:53,314 INFO L290 TraceCheckUtils]: 2: Hoare triple {204#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {204#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:53,315 INFO L290 TraceCheckUtils]: 3: Hoare triple {204#(= 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; {205#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:18:53,315 INFO L290 TraceCheckUtils]: 4: Hoare triple {205#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret21#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret21#1;havoc main_#t~ret21#1; {206#(= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0)} is VALID [2022-02-21 04:18:53,316 INFO L290 TraceCheckUtils]: 5: Hoare triple {206#(= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0)} assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; {207#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,316 INFO L290 TraceCheckUtils]: 6: Hoare triple {207#(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; {207#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,317 INFO L290 TraceCheckUtils]: 7: Hoare triple {207#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {207#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,317 INFO L290 TraceCheckUtils]: 8: Hoare triple {207#(not (= 0 ~systemActive~0))} assume !false; {207#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,318 INFO L290 TraceCheckUtils]: 9: Hoare triple {207#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {207#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,319 INFO L290 TraceCheckUtils]: 10: Hoare triple {207#(not (= 0 ~systemActive~0))} test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; {207#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,319 INFO L290 TraceCheckUtils]: 11: Hoare triple {207#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~4#1); {207#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,319 INFO L290 TraceCheckUtils]: 12: Hoare triple {207#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; {207#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,320 INFO L290 TraceCheckUtils]: 13: Hoare triple {207#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {207#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,321 INFO L290 TraceCheckUtils]: 14: Hoare triple {207#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {207#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,321 INFO L290 TraceCheckUtils]: 15: Hoare triple {207#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {207#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,321 INFO L290 TraceCheckUtils]: 16: Hoare triple {207#(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~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; {207#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,322 INFO L290 TraceCheckUtils]: 17: Hoare triple {207#(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; {207#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,323 INFO L290 TraceCheckUtils]: 18: Hoare triple {207#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {207#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,323 INFO L290 TraceCheckUtils]: 19: Hoare triple {207#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {207#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,324 INFO L290 TraceCheckUtils]: 20: Hoare triple {207#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {203#false} is VALID [2022-02-21 04:18:53,324 INFO L290 TraceCheckUtils]: 21: Hoare triple {203#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___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; {203#false} is VALID [2022-02-21 04:18:53,324 INFO L290 TraceCheckUtils]: 22: Hoare triple {203#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; {203#false} is VALID [2022-02-21 04:18:53,325 INFO L290 TraceCheckUtils]: 23: Hoare triple {203#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); {203#false} is VALID [2022-02-21 04:18:53,326 INFO L290 TraceCheckUtils]: 24: Hoare triple {203#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {203#false} is VALID [2022-02-21 04:18:53,326 INFO L290 TraceCheckUtils]: 25: Hoare triple {203#false} assume { :end_inline_timeShift } true; {203#false} is VALID [2022-02-21 04:18:53,327 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 04:18:53,327 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:53,328 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062603215] [2022-02-21 04:18:53,328 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062603215] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:53,329 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:53,329 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:53,329 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30615881] [2022-02-21 04:18:53,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:53,572 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:53,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:18:53,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:18:53,595 INFO L87 Difference]: Start difference. First operand has 194 states, 193 states have (on average 1.3523316062176165) internal successors, (261), 193 states have internal predecessors, (261), 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 04:18:54,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:54,487 INFO L93 Difference]: Finished difference Result 447 states and 582 transitions. [2022-02-21 04:18:54,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:54,488 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 04:18:54,510 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 04:18:54,513 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 447 states and 582 transitions. [2022-02-21 04:18:54,527 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 289 [2022-02-21 04:18:54,541 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 447 states to 417 states and 552 transitions. [2022-02-21 04:18:54,542 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 417 [2022-02-21 04:18:54,542 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 417 [2022-02-21 04:18:54,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 417 states and 552 transitions. [2022-02-21 04:18:54,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:54,544 INFO L681 BuchiCegarLoop]: Abstraction has 417 states and 552 transitions. [2022-02-21 04:18:54,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states and 552 transitions. [2022-02-21 04:18:54,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 242. [2022-02-21 04:18:54,567 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:54,568 INFO L82 GeneralOperation]: Start isEquivalent. First operand 417 states and 552 transitions. Second operand has 242 states, 242 states have (on average 1.322314049586777) internal successors, (320), 241 states have internal predecessors, (320), 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 04:18:54,569 INFO L74 IsIncluded]: Start isIncluded. First operand 417 states and 552 transitions. Second operand has 242 states, 242 states have (on average 1.322314049586777) internal successors, (320), 241 states have internal predecessors, (320), 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 04:18:54,570 INFO L87 Difference]: Start difference. First operand 417 states and 552 transitions. Second operand has 242 states, 242 states have (on average 1.322314049586777) internal successors, (320), 241 states have internal predecessors, (320), 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 04:18:54,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:54,587 INFO L93 Difference]: Finished difference Result 417 states and 552 transitions. [2022-02-21 04:18:54,588 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 552 transitions. [2022-02-21 04:18:54,594 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:54,594 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:54,595 INFO L74 IsIncluded]: Start isIncluded. First operand has 242 states, 242 states have (on average 1.322314049586777) internal successors, (320), 241 states have internal predecessors, (320), 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 417 states and 552 transitions. [2022-02-21 04:18:54,595 INFO L87 Difference]: Start difference. First operand has 242 states, 242 states have (on average 1.322314049586777) internal successors, (320), 241 states have internal predecessors, (320), 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 417 states and 552 transitions. [2022-02-21 04:18:54,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:54,604 INFO L93 Difference]: Finished difference Result 417 states and 552 transitions. [2022-02-21 04:18:54,604 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 552 transitions. [2022-02-21 04:18:54,617 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:54,617 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:54,618 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:54,618 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:54,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 242 states have (on average 1.322314049586777) internal successors, (320), 241 states have internal predecessors, (320), 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 04:18:54,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 320 transitions. [2022-02-21 04:18:54,624 INFO L704 BuchiCegarLoop]: Abstraction has 242 states and 320 transitions. [2022-02-21 04:18:54,624 INFO L587 BuchiCegarLoop]: Abstraction has 242 states and 320 transitions. [2022-02-21 04:18:54,624 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:54,625 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 242 states and 320 transitions. [2022-02-21 04:18:54,626 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 168 [2022-02-21 04:18:54,626 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:54,627 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:54,628 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:54,628 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:54,628 INFO L791 eck$LassoCheckResult]: Stem: 838#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 781#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 782#L843 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 712#L836 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; 713#L851 main_#t~ret21#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 735#L441 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 736#L413 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 737#L863 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 738#L297-2 [2022-02-21 04:18:54,628 INFO L793 eck$LassoCheckResult]: Loop: 738#L297-2 assume !false; 755#L298 assume test_~splverifierCounter~0#1 < 4; 756#L299 test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 778#L307 assume !(0 != test_~tmp~4#1); 692#L307-2 test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 676#L317 assume !(0 != test_~tmp___0~1#1); 678#L317-2 test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 728#L327 assume 0 != test_~tmp___2~0#1; 729#L333-2 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~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 812#L209 __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; 784#L873 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 785#L81 assume !(0 != ~pumpRunning~0); 814#L81-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 752#L139 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret4#1, processEnvironment__wrappee__methaneQuery_~tmp~0#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~0#1; 753#L113-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 792#L105-3 assume { :end_inline_processEnvironment__wrappee__base } true; 786#L113-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 695#L139-1 assume { :end_inline_processEnvironment } true; 696#L88-1 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___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 699#L981 __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; 700#L884 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 702#L884-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 807#L98 assume { :end_inline_timeShift } true; 738#L297-2 [2022-02-21 04:18:54,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:54,629 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:18:54,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:54,629 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9215165] [2022-02-21 04:18:54,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:54,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:54,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:54,653 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:54,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:54,661 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:54,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:54,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1571204004, now seen corresponding path program 1 times [2022-02-21 04:18:54,662 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:54,662 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164390149] [2022-02-21 04:18:54,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:54,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:54,695 INFO L290 TraceCheckUtils]: 0: Hoare triple {1740#true} assume !false; {1740#true} is VALID [2022-02-21 04:18:54,695 INFO L290 TraceCheckUtils]: 1: Hoare triple {1740#true} assume test_~splverifierCounter~0#1 < 4; {1740#true} is VALID [2022-02-21 04:18:54,695 INFO L290 TraceCheckUtils]: 2: Hoare triple {1740#true} test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; {1740#true} is VALID [2022-02-21 04:18:54,695 INFO L290 TraceCheckUtils]: 3: Hoare triple {1740#true} assume !(0 != test_~tmp~4#1); {1740#true} is VALID [2022-02-21 04:18:54,696 INFO L290 TraceCheckUtils]: 4: Hoare triple {1740#true} test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; {1740#true} is VALID [2022-02-21 04:18:54,696 INFO L290 TraceCheckUtils]: 5: Hoare triple {1740#true} assume !(0 != test_~tmp___0~1#1); {1740#true} is VALID [2022-02-21 04:18:54,696 INFO L290 TraceCheckUtils]: 6: Hoare triple {1740#true} test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {1740#true} is VALID [2022-02-21 04:18:54,696 INFO L290 TraceCheckUtils]: 7: Hoare triple {1740#true} assume 0 != test_~tmp___2~0#1; {1740#true} is VALID [2022-02-21 04:18:54,696 INFO L290 TraceCheckUtils]: 8: Hoare triple {1740#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~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; {1740#true} is VALID [2022-02-21 04:18:54,696 INFO L290 TraceCheckUtils]: 9: Hoare triple {1740#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; {1740#true} is VALID [2022-02-21 04:18:54,696 INFO L290 TraceCheckUtils]: 10: Hoare triple {1740#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {1740#true} is VALID [2022-02-21 04:18:54,697 INFO L290 TraceCheckUtils]: 11: Hoare triple {1740#true} assume !(0 != ~pumpRunning~0); {1742#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:54,697 INFO L290 TraceCheckUtils]: 12: Hoare triple {1742#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; {1742#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:54,698 INFO L290 TraceCheckUtils]: 13: Hoare triple {1742#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret4#1, processEnvironment__wrappee__methaneQuery_~tmp~0#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~0#1; {1742#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:54,698 INFO L290 TraceCheckUtils]: 14: Hoare triple {1742#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1741#false} is VALID [2022-02-21 04:18:54,698 INFO L290 TraceCheckUtils]: 15: Hoare triple {1741#false} assume { :end_inline_processEnvironment__wrappee__base } true; {1741#false} is VALID [2022-02-21 04:18:54,698 INFO L290 TraceCheckUtils]: 16: Hoare triple {1741#false} assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; {1741#false} is VALID [2022-02-21 04:18:54,699 INFO L290 TraceCheckUtils]: 17: Hoare triple {1741#false} assume { :end_inline_processEnvironment } true; {1741#false} is VALID [2022-02-21 04:18:54,699 INFO L290 TraceCheckUtils]: 18: Hoare triple {1741#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___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; {1741#false} is VALID [2022-02-21 04:18:54,700 INFO L290 TraceCheckUtils]: 19: Hoare triple {1741#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; {1741#false} is VALID [2022-02-21 04:18:54,700 INFO L290 TraceCheckUtils]: 20: Hoare triple {1741#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); {1741#false} is VALID [2022-02-21 04:18:54,700 INFO L290 TraceCheckUtils]: 21: Hoare triple {1741#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {1741#false} is VALID [2022-02-21 04:18:54,700 INFO L290 TraceCheckUtils]: 22: Hoare triple {1741#false} assume { :end_inline_timeShift } true; {1741#false} is VALID [2022-02-21 04:18:54,701 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 04:18:54,701 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:54,701 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164390149] [2022-02-21 04:18:54,701 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164390149] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:54,701 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:54,701 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:54,701 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440175187] [2022-02-21 04:18:54,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:54,702 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:54,702 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:54,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:54,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:54,704 INFO L87 Difference]: Start difference. First operand 242 states and 320 transitions. cyclomatic complexity: 81 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:54,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:54,898 INFO L93 Difference]: Finished difference Result 307 states and 389 transitions. [2022-02-21 04:18:54,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:54,899 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:54,912 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:54,913 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 307 states and 389 transitions. [2022-02-21 04:18:54,919 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 217 [2022-02-21 04:18:54,924 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 307 states to 307 states and 389 transitions. [2022-02-21 04:18:54,924 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 307 [2022-02-21 04:18:54,925 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 307 [2022-02-21 04:18:54,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 307 states and 389 transitions. [2022-02-21 04:18:54,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:54,925 INFO L681 BuchiCegarLoop]: Abstraction has 307 states and 389 transitions. [2022-02-21 04:18:54,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states and 389 transitions. [2022-02-21 04:18:54,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 307. [2022-02-21 04:18:54,931 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:54,932 INFO L82 GeneralOperation]: Start isEquivalent. First operand 307 states and 389 transitions. Second operand has 307 states, 307 states have (on average 1.267100977198697) internal successors, (389), 306 states have internal predecessors, (389), 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 04:18:54,932 INFO L74 IsIncluded]: Start isIncluded. First operand 307 states and 389 transitions. Second operand has 307 states, 307 states have (on average 1.267100977198697) internal successors, (389), 306 states have internal predecessors, (389), 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 04:18:54,933 INFO L87 Difference]: Start difference. First operand 307 states and 389 transitions. Second operand has 307 states, 307 states have (on average 1.267100977198697) internal successors, (389), 306 states have internal predecessors, (389), 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 04:18:54,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:54,937 INFO L93 Difference]: Finished difference Result 307 states and 389 transitions. [2022-02-21 04:18:54,938 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 389 transitions. [2022-02-21 04:18:54,938 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:54,938 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:54,938 INFO L74 IsIncluded]: Start isIncluded. First operand has 307 states, 307 states have (on average 1.267100977198697) internal successors, (389), 306 states have internal predecessors, (389), 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 307 states and 389 transitions. [2022-02-21 04:18:54,939 INFO L87 Difference]: Start difference. First operand has 307 states, 307 states have (on average 1.267100977198697) internal successors, (389), 306 states have internal predecessors, (389), 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 307 states and 389 transitions. [2022-02-21 04:18:54,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:54,944 INFO L93 Difference]: Finished difference Result 307 states and 389 transitions. [2022-02-21 04:18:54,944 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 389 transitions. [2022-02-21 04:18:54,944 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:54,944 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:54,944 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:54,944 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:54,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 307 states have (on average 1.267100977198697) internal successors, (389), 306 states have internal predecessors, (389), 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 04:18:54,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 389 transitions. [2022-02-21 04:18:54,950 INFO L704 BuchiCegarLoop]: Abstraction has 307 states and 389 transitions. [2022-02-21 04:18:54,950 INFO L587 BuchiCegarLoop]: Abstraction has 307 states and 389 transitions. [2022-02-21 04:18:54,950 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:54,950 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 307 states and 389 transitions. [2022-02-21 04:18:54,951 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 217 [2022-02-21 04:18:54,951 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:54,951 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:54,951 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:54,952 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:54,952 INFO L791 eck$LassoCheckResult]: Stem: 2244#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2176#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 2177#L843 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2104#L836 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; 2105#L851 main_#t~ret21#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 2127#L441 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 2128#L413 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2129#L863 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2130#L297-2 [2022-02-21 04:18:54,954 INFO L793 eck$LassoCheckResult]: Loop: 2130#L297-2 assume !false; 2345#L298 assume test_~splverifierCounter~0#1 < 4; 2344#L299 test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 2342#L307 assume !(0 != test_~tmp~4#1); 2340#L307-2 test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 2338#L317 assume !(0 != test_~tmp___0~1#1); 2336#L317-2 test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 2334#L327 assume 0 != test_~tmp___2~0#1; 2333#L333-2 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~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 2236#L209 __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; 2180#L873 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2181#L81 assume !(0 != ~pumpRunning~0); 2224#L81-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 2145#L139 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret4#1, processEnvironment__wrappee__methaneQuery_~tmp~0#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~0#1; 2146#L113-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 2070#L989-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 2071#L994-1 isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1; 2196#L258-3 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~0#1 := 0; 2197#L258-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 2218#L264-1 processEnvironment__wrappee__methaneQuery_#t~ret4#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~0#1 := processEnvironment__wrappee__methaneQuery_#t~ret4#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret4#1; 2057#L117-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2059#L105-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2182#L113-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2086#L139-1 assume { :end_inline_processEnvironment } true; 2087#L88-1 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___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 2352#L981 __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; 2350#L884 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 2347#L884-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2346#L98 assume { :end_inline_timeShift } true; 2130#L297-2 [2022-02-21 04:18:54,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:54,954 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:18:54,954 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:54,954 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686994616] [2022-02-21 04:18:54,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:54,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:54,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:54,962 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:54,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:54,969 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:54,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:54,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1993864476, now seen corresponding path program 1 times [2022-02-21 04:18:54,969 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:54,969 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460133130] [2022-02-21 04:18:54,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:54,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:54,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:55,001 INFO L290 TraceCheckUtils]: 0: Hoare triple {2976#true} assume !false; {2976#true} is VALID [2022-02-21 04:18:55,001 INFO L290 TraceCheckUtils]: 1: Hoare triple {2976#true} assume test_~splverifierCounter~0#1 < 4; {2976#true} is VALID [2022-02-21 04:18:55,001 INFO L290 TraceCheckUtils]: 2: Hoare triple {2976#true} test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; {2976#true} is VALID [2022-02-21 04:18:55,001 INFO L290 TraceCheckUtils]: 3: Hoare triple {2976#true} assume !(0 != test_~tmp~4#1); {2976#true} is VALID [2022-02-21 04:18:55,001 INFO L290 TraceCheckUtils]: 4: Hoare triple {2976#true} test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; {2976#true} is VALID [2022-02-21 04:18:55,001 INFO L290 TraceCheckUtils]: 5: Hoare triple {2976#true} assume !(0 != test_~tmp___0~1#1); {2976#true} is VALID [2022-02-21 04:18:55,001 INFO L290 TraceCheckUtils]: 6: Hoare triple {2976#true} test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {2976#true} is VALID [2022-02-21 04:18:55,002 INFO L290 TraceCheckUtils]: 7: Hoare triple {2976#true} assume 0 != test_~tmp___2~0#1; {2976#true} is VALID [2022-02-21 04:18:55,002 INFO L290 TraceCheckUtils]: 8: Hoare triple {2976#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~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; {2976#true} is VALID [2022-02-21 04:18:55,002 INFO L290 TraceCheckUtils]: 9: Hoare triple {2976#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; {2976#true} is VALID [2022-02-21 04:18:55,002 INFO L290 TraceCheckUtils]: 10: Hoare triple {2976#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {2976#true} is VALID [2022-02-21 04:18:55,002 INFO L290 TraceCheckUtils]: 11: Hoare triple {2976#true} assume !(0 != ~pumpRunning~0); {2976#true} is VALID [2022-02-21 04:18:55,002 INFO L290 TraceCheckUtils]: 12: Hoare triple {2976#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; {2976#true} is VALID [2022-02-21 04:18:55,002 INFO L290 TraceCheckUtils]: 13: Hoare triple {2976#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret4#1, processEnvironment__wrappee__methaneQuery_~tmp~0#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~0#1; {2976#true} is VALID [2022-02-21 04:18:55,002 INFO L290 TraceCheckUtils]: 14: Hoare triple {2976#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; {2976#true} is VALID [2022-02-21 04:18:55,003 INFO L290 TraceCheckUtils]: 15: Hoare triple {2976#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; {2978#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:55,003 INFO L290 TraceCheckUtils]: 16: Hoare triple {2978#(not (= 2 ~waterLevel~0))} isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1; {2978#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:55,004 INFO L290 TraceCheckUtils]: 17: Hoare triple {2978#(not (= 2 ~waterLevel~0))} assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~0#1 := 0; {2978#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:55,004 INFO L290 TraceCheckUtils]: 18: Hoare triple {2978#(not (= 2 ~waterLevel~0))} isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; {2978#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:55,004 INFO L290 TraceCheckUtils]: 19: Hoare triple {2978#(not (= 2 ~waterLevel~0))} processEnvironment__wrappee__methaneQuery_#t~ret4#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~0#1 := processEnvironment__wrappee__methaneQuery_#t~ret4#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret4#1; {2978#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:55,005 INFO L290 TraceCheckUtils]: 20: Hoare triple {2978#(not (= 2 ~waterLevel~0))} assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {2978#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:55,005 INFO L290 TraceCheckUtils]: 21: Hoare triple {2978#(not (= 2 ~waterLevel~0))} assume { :end_inline_processEnvironment__wrappee__base } true; {2978#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:55,005 INFO L290 TraceCheckUtils]: 22: Hoare triple {2978#(not (= 2 ~waterLevel~0))} assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; {2978#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:55,006 INFO L290 TraceCheckUtils]: 23: Hoare triple {2978#(not (= 2 ~waterLevel~0))} assume { :end_inline_processEnvironment } true; {2978#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:55,006 INFO L290 TraceCheckUtils]: 24: Hoare triple {2978#(not (= 2 ~waterLevel~0))} 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___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; {2979#(not (= |ULTIMATE.start_getWaterLevel_#res#1| 2))} is VALID [2022-02-21 04:18:55,006 INFO L290 TraceCheckUtils]: 25: Hoare triple {2979#(not (= |ULTIMATE.start_getWaterLevel_#res#1| 2))} __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; {2980#(not (= 2 |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~9#1|))} is VALID [2022-02-21 04:18:55,007 INFO L290 TraceCheckUtils]: 26: Hoare triple {2980#(not (= 2 |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~9#1|))} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); {2977#false} is VALID [2022-02-21 04:18:55,007 INFO L290 TraceCheckUtils]: 27: Hoare triple {2977#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {2977#false} is VALID [2022-02-21 04:18:55,007 INFO L290 TraceCheckUtils]: 28: Hoare triple {2977#false} assume { :end_inline_timeShift } true; {2977#false} is VALID [2022-02-21 04:18:55,007 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 04:18:55,007 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:55,008 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460133130] [2022-02-21 04:18:55,008 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460133130] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:55,008 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:55,008 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:55,008 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471008661] [2022-02-21 04:18:55,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:55,008 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:55,008 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:55,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:55,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:55,009 INFO L87 Difference]: Start difference. First operand 307 states and 389 transitions. cyclomatic complexity: 85 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:55,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:55,776 INFO L93 Difference]: Finished difference Result 1336 states and 1678 transitions. [2022-02-21 04:18:55,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:18:55,776 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:55,790 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:55,792 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1336 states and 1678 transitions. [2022-02-21 04:18:55,848 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 931 [2022-02-21 04:18:55,891 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1336 states to 1336 states and 1678 transitions. [2022-02-21 04:18:55,891 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1336 [2022-02-21 04:18:55,892 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1336 [2022-02-21 04:18:55,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1336 states and 1678 transitions. [2022-02-21 04:18:55,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:55,893 INFO L681 BuchiCegarLoop]: Abstraction has 1336 states and 1678 transitions. [2022-02-21 04:18:55,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1336 states and 1678 transitions. [2022-02-21 04:18:55,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1336 to 603. [2022-02-21 04:18:55,912 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:55,914 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1336 states and 1678 transitions. Second operand has 603 states, 603 states have (on average 1.252072968490879) internal successors, (755), 602 states have internal predecessors, (755), 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 04:18:55,914 INFO L74 IsIncluded]: Start isIncluded. First operand 1336 states and 1678 transitions. Second operand has 603 states, 603 states have (on average 1.252072968490879) internal successors, (755), 602 states have internal predecessors, (755), 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 04:18:55,915 INFO L87 Difference]: Start difference. First operand 1336 states and 1678 transitions. Second operand has 603 states, 603 states have (on average 1.252072968490879) internal successors, (755), 602 states have internal predecessors, (755), 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 04:18:55,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:55,962 INFO L93 Difference]: Finished difference Result 1336 states and 1678 transitions. [2022-02-21 04:18:55,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1678 transitions. [2022-02-21 04:18:55,963 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:55,964 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:55,965 INFO L74 IsIncluded]: Start isIncluded. First operand has 603 states, 603 states have (on average 1.252072968490879) internal successors, (755), 602 states have internal predecessors, (755), 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 1336 states and 1678 transitions. [2022-02-21 04:18:55,966 INFO L87 Difference]: Start difference. First operand has 603 states, 603 states have (on average 1.252072968490879) internal successors, (755), 602 states have internal predecessors, (755), 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 1336 states and 1678 transitions. [2022-02-21 04:18:56,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:56,010 INFO L93 Difference]: Finished difference Result 1336 states and 1678 transitions. [2022-02-21 04:18:56,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1678 transitions. [2022-02-21 04:18:56,012 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:56,012 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:56,012 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:56,012 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:56,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 603 states have (on average 1.252072968490879) internal successors, (755), 602 states have internal predecessors, (755), 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 04:18:56,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 755 transitions. [2022-02-21 04:18:56,024 INFO L704 BuchiCegarLoop]: Abstraction has 603 states and 755 transitions. [2022-02-21 04:18:56,024 INFO L587 BuchiCegarLoop]: Abstraction has 603 states and 755 transitions. [2022-02-21 04:18:56,024 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:18:56,024 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 603 states and 755 transitions. [2022-02-21 04:18:56,026 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 432 [2022-02-21 04:18:56,026 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:56,026 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:56,027 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:56,027 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 04:18:56,027 INFO L791 eck$LassoCheckResult]: Stem: 4555#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 4462#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 4463#L843 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 4384#L836 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; 4385#L851 main_#t~ret21#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 4410#L441 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 4411#L413 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 4412#L863 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 4413#L297-2 [2022-02-21 04:18:56,027 INFO L793 eck$LassoCheckResult]: Loop: 4413#L297-2 assume !false; 4811#L298 assume test_~splverifierCounter~0#1 < 4; 4812#L299 test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 4904#L307 assume !(0 != test_~tmp~4#1); 4902#L307-2 test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 4900#L317 assume !(0 != test_~tmp___0~1#1); 4898#L317-2 test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 4897#L327 assume 0 != test_~tmp___2~0#1; 4896#L333-2 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~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 4913#L209 __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; 4912#L873 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 4908#L81 assume !(0 != ~pumpRunning~0); 4526#L81-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 4428#L139 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret4#1, processEnvironment__wrappee__methaneQuery_~tmp~0#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~0#1; 4429#L113-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 4350#L989-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 4351#L994-1 isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1; 4488#L258-3 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~0#1 := 0; 4489#L258-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 4519#L264-1 processEnvironment__wrappee__methaneQuery_#t~ret4#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~0#1 := processEnvironment__wrappee__methaneQuery_#t~ret4#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret4#1; 4335#L117-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 4337#L105-2 assume { :end_inline_processEnvironment__wrappee__base } true; 4847#L113-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 4846#L139-1 assume { :end_inline_processEnvironment } true; 4843#L88-1 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___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 4841#L981 __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; 4839#L884 assume 2 != __utac_acc__Specification5_spec__3_~tmp~9#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 4837#L209-1 __utac_acc__Specification5_spec__3_#t~ret48#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret48#1;havoc __utac_acc__Specification5_spec__3_#t~ret48#1; 4818#L888 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1); 4817#L884-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 4813#L98 assume { :end_inline_timeShift } true; 4413#L297-2 [2022-02-21 04:18:56,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:56,028 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-02-21 04:18:56,028 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:56,028 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045823226] [2022-02-21 04:18:56,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:56,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:56,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:56,036 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:56,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:56,042 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:56,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:56,043 INFO L85 PathProgramCache]: Analyzing trace with hash 529251831, now seen corresponding path program 1 times [2022-02-21 04:18:56,043 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:56,043 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797863009] [2022-02-21 04:18:56,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:56,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:56,048 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:56,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:56,053 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:56,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:56,054 INFO L85 PathProgramCache]: Analyzing trace with hash -282788370, now seen corresponding path program 1 times [2022-02-21 04:18:56,054 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:56,054 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446741740] [2022-02-21 04:18:56,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:56,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:56,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:56,064 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:56,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:56,074 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:58,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:58 BoogieIcfgContainer [2022-02-21 04:18:58,856 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:58,856 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:58,856 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:58,856 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:58,857 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:52" (3/4) ... [2022-02-21 04:18:58,860 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:58,934 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:58,934 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:58,935 INFO L158 Benchmark]: Toolchain (without parser) took 7370.22ms. Allocated memory was 81.8MB in the beginning and 167.8MB in the end (delta: 86.0MB). Free memory was 60.4MB in the beginning and 65.1MB in the end (delta: -4.7MB). Peak memory consumption was 82.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:58,936 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory was 58.8MB in the beginning and 58.8MB in the end (delta: 45.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:58,936 INFO L158 Benchmark]: CACSL2BoogieTranslator took 478.95ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 60.1MB in the beginning and 71.1MB in the end (delta: -11.0MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:58,936 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.93ms. Allocated memory is still 107.0MB. Free memory was 71.1MB in the beginning and 66.1MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:58,936 INFO L158 Benchmark]: Boogie Preprocessor took 27.21ms. Allocated memory is still 107.0MB. Free memory was 66.1MB in the beginning and 63.4MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:58,936 INFO L158 Benchmark]: RCFGBuilder took 617.41ms. Allocated memory is still 107.0MB. Free memory was 63.4MB in the beginning and 76.0MB in the end (delta: -12.6MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2022-02-21 04:18:58,937 INFO L158 Benchmark]: BuchiAutomizer took 6071.23ms. Allocated memory was 107.0MB in the beginning and 167.8MB in the end (delta: 60.8MB). Free memory was 76.0MB in the beginning and 68.2MB in the end (delta: 7.7MB). Peak memory consumption was 95.7MB. Max. memory is 16.1GB. [2022-02-21 04:18:58,937 INFO L158 Benchmark]: Witness Printer took 78.48ms. Allocated memory is still 167.8MB. Free memory was 68.2MB in the beginning and 65.1MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:58,938 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 0.17ms. Allocated memory is still 81.8MB. Free memory was 58.8MB in the beginning and 58.8MB in the end (delta: 45.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 478.95ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 60.1MB in the beginning and 71.1MB in the end (delta: -11.0MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.93ms. Allocated memory is still 107.0MB. Free memory was 71.1MB in the beginning and 66.1MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.21ms. Allocated memory is still 107.0MB. Free memory was 66.1MB in the beginning and 63.4MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 617.41ms. Allocated memory is still 107.0MB. Free memory was 63.4MB in the beginning and 76.0MB in the end (delta: -12.6MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 6071.23ms. Allocated memory was 107.0MB in the beginning and 167.8MB in the end (delta: 60.8MB). Free memory was 76.0MB in the beginning and 68.2MB in the end (delta: 7.7MB). Peak memory consumption was 95.7MB. Max. memory is 16.1GB. * Witness Printer took 78.48ms. Allocated memory is still 167.8MB. Free memory was 68.2MB in the beginning and 65.1MB in the end (delta: 3.2MB). 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 603 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.5s. Construction of modules took 0.1s. Büchi inclusion checks took 1.7s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 908 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 603 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2610 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2610 mSDsluCounter, 2986 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2147 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 208 IncrementalHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 839 mSDtfsCounter, 208 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: 297]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c3b24f3=0, tmp___0=0, NULL=0, tmp=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, retValue_acc=0, methaneLevelCritical=0, retValue_acc=0, retValue_acc=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1502256c=0, retValue_acc=1, retValue_acc=1, \result=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bf69955=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71d6bd0b=29, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41a89d5a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@490093ed=0, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@286dad00=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24e680e5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10ca2153=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, tmp=1, \result=0, tmp=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@87890b6=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43ce9aec=0, tmp=0, \result=0, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 297]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L69] int pumpRunning = 0; [L70] int systemActive = 1; [L354] int cleanupTimeShifts = 4; [L624] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L857] int switchedOnBeforeTS ; [L906] int waterLevel = 1; [L907] int methaneLevelCritical = 0; [L432] int retValue_acc ; [L433] int tmp ; [L437] FCALL select_helpers() [L438] FCALL select_features() [L439] CALL, EXPR valid_product() [L847] int retValue_acc ; [L850] retValue_acc = 1 [L851] return (retValue_acc); [L439] RET, EXPR valid_product() [L439] tmp = valid_product() [L441] COND TRUE \read(tmp) [L443] FCALL setup() [L444] CALL runTest() [L422] CALL __utac_acc__Specification5_spec__1() [L862] switchedOnBeforeTS = 0 [L422] RET __utac_acc__Specification5_spec__1() [L423] CALL test() [L288] int splverifierCounter ; [L289] int tmp ; [L290] int tmp___0 ; [L291] int tmp___1 ; [L292] int tmp___2 ; [L295] splverifierCounter = 0 Loop: [L297] COND TRUE 1 [L299] COND TRUE splverifierCounter < 4 [L305] tmp = __VERIFIER_nondet_int() [L307] COND FALSE !(\read(tmp)) [L315] tmp___0 = __VERIFIER_nondet_int() [L317] COND FALSE !(\read(tmp___0)) [L325] tmp___2 = __VERIFIER_nondet_int() [L327] COND TRUE \read(tmp___2) [L342] CALL timeShift() [L79] CALL __utac_acc__Specification5_spec__2() [L871] CALL, EXPR isPumpRunning() [L205] int retValue_acc ; [L208] retValue_acc = pumpRunning [L209] return (retValue_acc); [L871] RET, EXPR isPumpRunning() [L871] switchedOnBeforeTS = isPumpRunning() [L79] RET __utac_acc__Specification5_spec__2() [L81] COND FALSE !(\read(pumpRunning)) [L88] COND TRUE \read(systemActive) [L90] CALL processEnvironment() [L136] int tmp ; [L139] COND FALSE !(\read(pumpRunning)) [L154] CALL processEnvironment__wrappee__methaneQuery() [L110] int tmp ; [L113] COND TRUE ! pumpRunning [L115] CALL, EXPR isHighWaterLevel() [L250] int retValue_acc ; [L251] int tmp ; [L252] int tmp___0 ; [L256] CALL, EXPR isHighWaterSensorDry() [L986] int retValue_acc ; [L989] COND TRUE waterLevel < 2 [L990] retValue_acc = 1 [L991] return (retValue_acc); [L256] RET, EXPR isHighWaterSensorDry() [L256] tmp = isHighWaterSensorDry() [L258] COND TRUE \read(tmp) [L259] tmp___0 = 0 [L263] retValue_acc = tmp___0 [L264] return (retValue_acc); [L115] RET, EXPR isHighWaterLevel() [L115] tmp = isHighWaterLevel() [L117] COND FALSE !(\read(tmp)) [L123] FCALL processEnvironment__wrappee__base() [L154] RET processEnvironment__wrappee__methaneQuery() [L90] RET processEnvironment() [L96] CALL __utac_acc__Specification5_spec__3() [L877] int tmp ; [L878] int tmp___0 ; [L882] CALL, EXPR getWaterLevel() [L977] int retValue_acc ; [L980] retValue_acc = waterLevel [L981] return (retValue_acc); [L882] RET, EXPR getWaterLevel() [L882] tmp = getWaterLevel() [L884] COND TRUE tmp != 2 [L886] CALL, EXPR isPumpRunning() [L205] int retValue_acc ; [L208] retValue_acc = pumpRunning [L209] return (retValue_acc); [L886] RET, EXPR isPumpRunning() [L886] tmp___0 = isPumpRunning() [L888] COND FALSE !(\read(tmp___0)) [L96] RET __utac_acc__Specification5_spec__3() [L342] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:59,005 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)