./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product57.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_spec1_product57.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 d0f26fc8ab0bdaf05de905c05e583bc491c727ef99c3d3df87bba160b541b55a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:15:41,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:15:41,587 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:15:41,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:15:41,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:15:41,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:15:41,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:15:41,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:15:41,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:15:41,632 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:15:41,633 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:15:41,634 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:15:41,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:15:41,636 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:15:41,637 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:15:41,639 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:15:41,640 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:15:41,641 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:15:41,642 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:15:41,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:15:41,648 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:15:41,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:15:41,650 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:15:41,650 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:15:41,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:15:41,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:15:41,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:15:41,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:15:41,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:15:41,658 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:15:41,658 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:15:41,659 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:15:41,660 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:15:41,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:15:41,663 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:15:41,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:15:41,664 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:15:41,664 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:15:41,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:15:41,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:15:41,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:15:41,666 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:15:41,689 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:15:41,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:15:41,690 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:15:41,690 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:15:41,691 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:15:41,691 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:15:41,691 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:15:41,692 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:15:41,692 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:15:41,692 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:15:41,692 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:15:41,693 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:15:41,693 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:15:41,693 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:15:41,693 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:15:41,693 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:15:41,693 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:15:41,694 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:15:41,694 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:15:41,694 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:15:41,694 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:15:41,694 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:15:41,694 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:15:41,694 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:15:41,695 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:15:41,695 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:15:41,695 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:15:41,695 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:15:41,695 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:15:41,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:15:41,696 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:15:41,697 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:15:41,697 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0f26fc8ab0bdaf05de905c05e583bc491c727ef99c3d3df87bba160b541b55a [2022-02-21 04:15:41,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:15:41,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:15:41,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:15:41,935 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:15:41,936 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:15:41,937 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product57.cil.c [2022-02-21 04:15:42,008 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b01c6179e/5da9bd5036d8483da6d9ea9d21ee4a68/FLAGe6945fc31 [2022-02-21 04:15:42,406 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:15:42,407 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product57.cil.c [2022-02-21 04:15:42,422 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b01c6179e/5da9bd5036d8483da6d9ea9d21ee4a68/FLAGe6945fc31 [2022-02-21 04:15:42,764 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b01c6179e/5da9bd5036d8483da6d9ea9d21ee4a68 [2022-02-21 04:15:42,766 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:15:42,767 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:15:42,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:42,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:15:42,775 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:15:42,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:42" (1/1) ... [2022-02-21 04:15:42,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2995fe5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:42, skipping insertion in model container [2022-02-21 04:15:42,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:42" (1/1) ... [2022-02-21 04:15:42,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:15:42,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:15:43,059 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_spec1_product57.cil.c[18661,18674] [2022-02-21 04:15:43,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:43,073 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:15:43,165 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_spec1_product57.cil.c[18661,18674] [2022-02-21 04:15:43,165 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:43,176 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:15:43,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:43 WrapperNode [2022-02-21 04:15:43,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:43,184 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:43,184 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:15:43,184 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:15:43,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:43" (1/1) ... [2022-02-21 04:15:43,206 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:43" (1/1) ... [2022-02-21 04:15:43,247 INFO L137 Inliner]: procedures = 56, calls = 156, calls flagged for inlining = 53, calls inlined = 95, statements flattened = 725 [2022-02-21 04:15:43,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:43,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:15:43,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:15:43,249 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:15:43,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:43" (1/1) ... [2022-02-21 04:15:43,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:43" (1/1) ... [2022-02-21 04:15:43,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:43" (1/1) ... [2022-02-21 04:15:43,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:43" (1/1) ... [2022-02-21 04:15:43,277 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:43" (1/1) ... [2022-02-21 04:15:43,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:43" (1/1) ... [2022-02-21 04:15:43,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:43" (1/1) ... [2022-02-21 04:15:43,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:15:43,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:15:43,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:15:43,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:15:43,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:43" (1/1) ... [2022-02-21 04:15:43,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:15:43,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:15:43,310 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 04:15:43,320 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 04:15:43,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:15:43,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:15:43,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:15:43,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:15:43,426 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:15:43,427 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:15:43,942 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:15:43,954 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:15:43,954 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:15:43,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:43 BoogieIcfgContainer [2022-02-21 04:15:43,958 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:15:43,959 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:15:43,959 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:15:43,961 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:15:43,962 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:43,962 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:15:42" (1/3) ... [2022-02-21 04:15:43,963 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@232ef18c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:43, skipping insertion in model container [2022-02-21 04:15:43,963 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:43,963 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:43" (2/3) ... [2022-02-21 04:15:43,963 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@232ef18c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:43, skipping insertion in model container [2022-02-21 04:15:43,963 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:43,963 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:43" (3/3) ... [2022-02-21 04:15:43,964 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product57.cil.c [2022-02-21 04:15:44,002 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:15:44,002 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:15:44,002 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:15:44,002 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:15:44,002 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:15:44,003 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:15:44,003 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:15:44,003 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:15:44,024 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 186 states, 185 states have (on average 1.3621621621621622) internal successors, (252), 185 states have internal predecessors, (252), 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 04:15:44,067 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2022-02-21 04:15:44,069 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:44,069 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:44,073 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:44,073 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:44,073 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:15:44,075 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 186 states, 185 states have (on average 1.3621621621621622) internal successors, (252), 185 states have internal predecessors, (252), 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 04:15:44,085 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2022-02-21 04:15:44,085 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:44,085 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:44,086 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:44,086 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:44,094 INFO L791 eck$LassoCheckResult]: Stem: 169#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 46#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~9#1, main_~tmp~10#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 22#L104true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 109#L97true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 75#L112true main_#t~ret48#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret48#1;havoc main_#t~ret48#1; 183#L856true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 61#L833true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_#t~nondet33#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; 34#L497-2true [2022-02-21 04:15:44,094 INFO L793 eck$LassoCheckResult]: Loop: 34#L497-2true assume !false; 127#L498true assume test_~splverifierCounter~0#1 < 4; 54#L499true test_~tmp~4#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 24#L507true assume !(0 != test_~tmp~4#1); 32#L507-2true test_~tmp___0~1#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 121#L517true assume !(0 != test_~tmp___0~1#1); 50#L517-2true test_~tmp___2~0#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 133#L527true assume 0 != test_~tmp___2~0#1; 20#L533-2true assume { :begin_inline_timeShift } true; 156#L566true assume !(0 != ~pumpRunning~0); 63#L566-2true assume !(0 != ~systemActive~0); 81#L573-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 142#L914-2true __utac_acc__Specification1_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret4#1;havoc __utac_acc__Specification1_spec__1_#t~ret4#1; 100#L61true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 161#L61-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 135#L583true assume { :end_inline_timeShift } true; 34#L497-2true [2022-02-21 04:15:44,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:44,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:15:44,103 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:44,104 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24291284] [2022-02-21 04:15:44,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:44,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:44,243 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:44,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:44,290 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:44,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:44,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1892791780, now seen corresponding path program 1 times [2022-02-21 04:15:44,293 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:44,294 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194231056] [2022-02-21 04:15:44,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:44,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:44,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:44,316 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:44,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:44,324 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:44,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:44,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1046756440, now seen corresponding path program 1 times [2022-02-21 04:15:44,327 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:44,327 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208407335] [2022-02-21 04:15:44,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:44,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:44,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:44,444 INFO L290 TraceCheckUtils]: 0: Hoare triple {194#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {196#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:44,444 INFO L290 TraceCheckUtils]: 1: Hoare triple {196#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~9#1, main_~tmp~10#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; {196#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:44,445 INFO L290 TraceCheckUtils]: 2: Hoare triple {196#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {196#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:44,445 INFO L290 TraceCheckUtils]: 3: Hoare triple {196#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; {197#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:15:44,446 INFO L290 TraceCheckUtils]: 4: Hoare triple {197#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret48#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret48#1;havoc main_#t~ret48#1; {198#(= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0)} is VALID [2022-02-21 04:15:44,446 INFO L290 TraceCheckUtils]: 5: Hoare triple {198#(= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0)} assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:44,447 INFO L290 TraceCheckUtils]: 6: Hoare triple {199#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_#t~nondet33#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; {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:44,447 INFO L290 TraceCheckUtils]: 7: Hoare triple {199#(not (= 0 ~systemActive~0))} assume !false; {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:44,448 INFO L290 TraceCheckUtils]: 8: Hoare triple {199#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:44,448 INFO L290 TraceCheckUtils]: 9: Hoare triple {199#(not (= 0 ~systemActive~0))} test_~tmp~4#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:44,448 INFO L290 TraceCheckUtils]: 10: Hoare triple {199#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~4#1); {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:44,449 INFO L290 TraceCheckUtils]: 11: Hoare triple {199#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:44,449 INFO L290 TraceCheckUtils]: 12: Hoare triple {199#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:44,450 INFO L290 TraceCheckUtils]: 13: Hoare triple {199#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:44,450 INFO L290 TraceCheckUtils]: 14: Hoare triple {199#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:44,451 INFO L290 TraceCheckUtils]: 15: Hoare triple {199#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:44,451 INFO L290 TraceCheckUtils]: 16: Hoare triple {199#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:44,451 INFO L290 TraceCheckUtils]: 17: Hoare triple {199#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {195#false} is VALID [2022-02-21 04:15:44,452 INFO L290 TraceCheckUtils]: 18: Hoare triple {195#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; {195#false} is VALID [2022-02-21 04:15:44,452 INFO L290 TraceCheckUtils]: 19: Hoare triple {195#false} __utac_acc__Specification1_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret4#1;havoc __utac_acc__Specification1_spec__1_#t~ret4#1; {195#false} is VALID [2022-02-21 04:15:44,452 INFO L290 TraceCheckUtils]: 20: Hoare triple {195#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); {195#false} is VALID [2022-02-21 04:15:44,453 INFO L290 TraceCheckUtils]: 21: Hoare triple {195#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {195#false} is VALID [2022-02-21 04:15:44,453 INFO L290 TraceCheckUtils]: 22: Hoare triple {195#false} assume { :end_inline_timeShift } true; {195#false} is VALID [2022-02-21 04:15:44,455 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 04:15:44,455 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:44,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208407335] [2022-02-21 04:15:44,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208407335] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:44,455 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:44,456 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:15:44,456 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900320985] [2022-02-21 04:15:44,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:44,544 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:44,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:15:44,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:15:44,564 INFO L87 Difference]: Start difference. First operand has 186 states, 185 states have (on average 1.3621621621621622) internal successors, (252), 185 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:44,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:44,927 INFO L93 Difference]: Finished difference Result 183 states and 238 transitions. [2022-02-21 04:15:44,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:15:44,929 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:44,947 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 04:15:44,951 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 238 transitions. [2022-02-21 04:15:44,957 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 116 [2022-02-21 04:15:44,963 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 173 states and 228 transitions. [2022-02-21 04:15:44,964 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 173 [2022-02-21 04:15:44,964 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 173 [2022-02-21 04:15:44,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 173 states and 228 transitions. [2022-02-21 04:15:44,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:44,965 INFO L681 BuchiCegarLoop]: Abstraction has 173 states and 228 transitions. [2022-02-21 04:15:44,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states and 228 transitions. [2022-02-21 04:15:44,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2022-02-21 04:15:44,986 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:44,987 INFO L82 GeneralOperation]: Start isEquivalent. First operand 173 states and 228 transitions. Second operand has 173 states, 173 states have (on average 1.3179190751445087) internal successors, (228), 172 states have internal predecessors, (228), 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 04:15:44,988 INFO L74 IsIncluded]: Start isIncluded. First operand 173 states and 228 transitions. Second operand has 173 states, 173 states have (on average 1.3179190751445087) internal successors, (228), 172 states have internal predecessors, (228), 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 04:15:44,990 INFO L87 Difference]: Start difference. First operand 173 states and 228 transitions. Second operand has 173 states, 173 states have (on average 1.3179190751445087) internal successors, (228), 172 states have internal predecessors, (228), 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 04:15:44,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:44,995 INFO L93 Difference]: Finished difference Result 173 states and 228 transitions. [2022-02-21 04:15:44,995 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 228 transitions. [2022-02-21 04:15:44,996 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:44,997 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:44,997 INFO L74 IsIncluded]: Start isIncluded. First operand has 173 states, 173 states have (on average 1.3179190751445087) internal successors, (228), 172 states have internal predecessors, (228), 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 173 states and 228 transitions. [2022-02-21 04:15:44,998 INFO L87 Difference]: Start difference. First operand has 173 states, 173 states have (on average 1.3179190751445087) internal successors, (228), 172 states have internal predecessors, (228), 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 173 states and 228 transitions. [2022-02-21 04:15:45,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:45,002 INFO L93 Difference]: Finished difference Result 173 states and 228 transitions. [2022-02-21 04:15:45,002 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 228 transitions. [2022-02-21 04:15:45,003 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:45,003 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:45,031 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:45,031 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:45,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 173 states have (on average 1.3179190751445087) internal successors, (228), 172 states have internal predecessors, (228), 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 04:15:45,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 228 transitions. [2022-02-21 04:15:45,037 INFO L704 BuchiCegarLoop]: Abstraction has 173 states and 228 transitions. [2022-02-21 04:15:45,037 INFO L587 BuchiCegarLoop]: Abstraction has 173 states and 228 transitions. [2022-02-21 04:15:45,037 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:15:45,037 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 173 states and 228 transitions. [2022-02-21 04:15:45,040 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 116 [2022-02-21 04:15:45,040 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:45,040 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:45,041 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:45,041 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] [2022-02-21 04:15:45,041 INFO L791 eck$LassoCheckResult]: Stem: 557#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 464#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~9#1, main_~tmp~10#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 421#L104 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 422#L97 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 501#L112 main_#t~ret48#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret48#1;havoc main_#t~ret48#1; 502#L856 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 483#L833 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_#t~nondet33#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; 442#L497-2 [2022-02-21 04:15:45,042 INFO L793 eck$LassoCheckResult]: Loop: 442#L497-2 assume !false; 443#L498 assume test_~splverifierCounter~0#1 < 4; 472#L499 test_~tmp~4#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 425#L507 assume !(0 != test_~tmp~4#1); 426#L507-2 test_~tmp___0~1#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 439#L517 assume !(0 != test_~tmp___0~1#1); 467#L517-2 test_~tmp___2~0#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 468#L527 assume 0 != test_~tmp___2~0#1; 417#L533-2 assume { :begin_inline_timeShift } true; 418#L566 assume !(0 != ~pumpRunning~0); 487#L566-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret35#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 469#L624 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 470#L598-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 505#L590-3 assume { :end_inline_processEnvironment__wrappee__base } true; 473#L598-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 517#L624-1 assume { :end_inline_processEnvironment } true; 509#L573-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 510#L914-2 __utac_acc__Specification1_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret4#1;havoc __utac_acc__Specification1_spec__1_#t~ret4#1; 522#L61 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 523#L61-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 546#L583 assume { :end_inline_timeShift } true; 442#L497-2 [2022-02-21 04:15:45,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:45,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:15:45,043 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:45,043 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991861026] [2022-02-21 04:15:45,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:45,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:45,076 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:45,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:45,090 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:45,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:45,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1698451121, now seen corresponding path program 1 times [2022-02-21 04:15:45,093 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:45,093 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508955051] [2022-02-21 04:15:45,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:45,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:45,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:45,117 INFO L290 TraceCheckUtils]: 0: Hoare triple {911#true} assume !false; {911#true} is VALID [2022-02-21 04:15:45,118 INFO L290 TraceCheckUtils]: 1: Hoare triple {911#true} assume test_~splverifierCounter~0#1 < 4; {911#true} is VALID [2022-02-21 04:15:45,118 INFO L290 TraceCheckUtils]: 2: Hoare triple {911#true} test_~tmp~4#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; {911#true} is VALID [2022-02-21 04:15:45,118 INFO L290 TraceCheckUtils]: 3: Hoare triple {911#true} assume !(0 != test_~tmp~4#1); {911#true} is VALID [2022-02-21 04:15:45,118 INFO L290 TraceCheckUtils]: 4: Hoare triple {911#true} test_~tmp___0~1#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; {911#true} is VALID [2022-02-21 04:15:45,118 INFO L290 TraceCheckUtils]: 5: Hoare triple {911#true} assume !(0 != test_~tmp___0~1#1); {911#true} is VALID [2022-02-21 04:15:45,118 INFO L290 TraceCheckUtils]: 6: Hoare triple {911#true} test_~tmp___2~0#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; {911#true} is VALID [2022-02-21 04:15:45,119 INFO L290 TraceCheckUtils]: 7: Hoare triple {911#true} assume 0 != test_~tmp___2~0#1; {911#true} is VALID [2022-02-21 04:15:45,119 INFO L290 TraceCheckUtils]: 8: Hoare triple {911#true} assume { :begin_inline_timeShift } true; {911#true} is VALID [2022-02-21 04:15:45,119 INFO L290 TraceCheckUtils]: 9: Hoare triple {911#true} assume !(0 != ~pumpRunning~0); {913#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:45,120 INFO L290 TraceCheckUtils]: 10: Hoare triple {913#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret35#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; {913#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:45,120 INFO L290 TraceCheckUtils]: 11: Hoare triple {913#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; {913#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:45,120 INFO L290 TraceCheckUtils]: 12: Hoare triple {913#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {912#false} is VALID [2022-02-21 04:15:45,121 INFO L290 TraceCheckUtils]: 13: Hoare triple {912#false} assume { :end_inline_processEnvironment__wrappee__base } true; {912#false} is VALID [2022-02-21 04:15:45,121 INFO L290 TraceCheckUtils]: 14: Hoare triple {912#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {912#false} is VALID [2022-02-21 04:15:45,121 INFO L290 TraceCheckUtils]: 15: Hoare triple {912#false} assume { :end_inline_processEnvironment } true; {912#false} is VALID [2022-02-21 04:15:45,121 INFO L290 TraceCheckUtils]: 16: Hoare triple {912#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; {912#false} is VALID [2022-02-21 04:15:45,122 INFO L290 TraceCheckUtils]: 17: Hoare triple {912#false} __utac_acc__Specification1_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret4#1;havoc __utac_acc__Specification1_spec__1_#t~ret4#1; {912#false} is VALID [2022-02-21 04:15:45,122 INFO L290 TraceCheckUtils]: 18: Hoare triple {912#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); {912#false} is VALID [2022-02-21 04:15:45,122 INFO L290 TraceCheckUtils]: 19: Hoare triple {912#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {912#false} is VALID [2022-02-21 04:15:45,123 INFO L290 TraceCheckUtils]: 20: Hoare triple {912#false} assume { :end_inline_timeShift } true; {912#false} is VALID [2022-02-21 04:15:45,123 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 04:15:45,124 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:45,124 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508955051] [2022-02-21 04:15:45,124 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508955051] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:45,124 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:45,124 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:15:45,124 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155488795] [2022-02-21 04:15:45,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:45,125 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:45,125 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:45,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:15:45,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:15:45,126 INFO L87 Difference]: Start difference. First operand 173 states and 228 transitions. cyclomatic complexity: 57 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 04:15:45,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:45,323 INFO L93 Difference]: Finished difference Result 234 states and 296 transitions. [2022-02-21 04:15:45,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:15:45,323 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 04:15:45,338 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:45,338 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 234 states and 296 transitions. [2022-02-21 04:15:45,345 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 162 [2022-02-21 04:15:45,352 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 234 states to 234 states and 296 transitions. [2022-02-21 04:15:45,352 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 234 [2022-02-21 04:15:45,353 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 234 [2022-02-21 04:15:45,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 234 states and 296 transitions. [2022-02-21 04:15:45,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:45,356 INFO L681 BuchiCegarLoop]: Abstraction has 234 states and 296 transitions. [2022-02-21 04:15:45,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states and 296 transitions. [2022-02-21 04:15:45,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2022-02-21 04:15:45,363 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:45,364 INFO L82 GeneralOperation]: Start isEquivalent. First operand 234 states and 296 transitions. Second operand has 234 states, 234 states have (on average 1.264957264957265) internal successors, (296), 233 states have internal predecessors, (296), 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 04:15:45,364 INFO L74 IsIncluded]: Start isIncluded. First operand 234 states and 296 transitions. Second operand has 234 states, 234 states have (on average 1.264957264957265) internal successors, (296), 233 states have internal predecessors, (296), 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 04:15:45,365 INFO L87 Difference]: Start difference. First operand 234 states and 296 transitions. Second operand has 234 states, 234 states have (on average 1.264957264957265) internal successors, (296), 233 states have internal predecessors, (296), 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 04:15:45,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:45,370 INFO L93 Difference]: Finished difference Result 234 states and 296 transitions. [2022-02-21 04:15:45,370 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 296 transitions. [2022-02-21 04:15:45,371 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:45,371 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:45,372 INFO L74 IsIncluded]: Start isIncluded. First operand has 234 states, 234 states have (on average 1.264957264957265) internal successors, (296), 233 states have internal predecessors, (296), 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 234 states and 296 transitions. [2022-02-21 04:15:45,372 INFO L87 Difference]: Start difference. First operand has 234 states, 234 states have (on average 1.264957264957265) internal successors, (296), 233 states have internal predecessors, (296), 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 234 states and 296 transitions. [2022-02-21 04:15:45,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:45,378 INFO L93 Difference]: Finished difference Result 234 states and 296 transitions. [2022-02-21 04:15:45,378 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 296 transitions. [2022-02-21 04:15:45,378 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:45,378 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:45,379 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:45,379 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:45,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 234 states have (on average 1.264957264957265) internal successors, (296), 233 states have internal predecessors, (296), 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 04:15:45,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 296 transitions. [2022-02-21 04:15:45,384 INFO L704 BuchiCegarLoop]: Abstraction has 234 states and 296 transitions. [2022-02-21 04:15:45,384 INFO L587 BuchiCegarLoop]: Abstraction has 234 states and 296 transitions. [2022-02-21 04:15:45,385 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:15:45,385 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 234 states and 296 transitions. [2022-02-21 04:15:45,386 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 162 [2022-02-21 04:15:45,386 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:45,386 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:45,386 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:45,386 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:45,387 INFO L791 eck$LassoCheckResult]: Stem: 1328#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1225#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~9#1, main_~tmp~10#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 1181#L104 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1182#L97 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1264#L112 main_#t~ret48#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret48#1;havoc main_#t~ret48#1; 1265#L856 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1245#L833 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_#t~nondet33#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; 1200#L497-2 [2022-02-21 04:15:45,387 INFO L793 eck$LassoCheckResult]: Loop: 1200#L497-2 assume !false; 1201#L498 assume test_~splverifierCounter~0#1 < 4; 1233#L499 test_~tmp~4#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 1183#L507 assume !(0 != test_~tmp~4#1); 1184#L507-2 test_~tmp___0~1#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 1197#L517 assume !(0 != test_~tmp___0~1#1); 1228#L517-2 test_~tmp___2~0#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 1229#L527 assume 0 != test_~tmp___2~0#1; 1175#L533-2 assume { :begin_inline_timeShift } true; 1176#L566 assume !(0 != ~pumpRunning~0); 1249#L566-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret35#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 1230#L624 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 1231#L598-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1; 1278#L954-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; 1255#L959-1 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 1156#L744-3 assume !(0 != isHighWaterLevel_~tmp~8#1);isHighWaterLevel_~tmp___0~2#1 := 1; 1157#L744-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 1325#L750-1 processEnvironment__wrappee__highWaterSensor_#t~ret34#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret34#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1; 1217#L602-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1219#L590-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1235#L598-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1280#L624-1 assume { :end_inline_processEnvironment } true; 1273#L573-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 1274#L914-2 __utac_acc__Specification1_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret4#1;havoc __utac_acc__Specification1_spec__1_#t~ret4#1; 1288#L61 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 1289#L61-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1312#L583 assume { :end_inline_timeShift } true; 1200#L497-2 [2022-02-21 04:15:45,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:45,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:15:45,388 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:45,388 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710894777] [2022-02-21 04:15:45,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:45,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:45,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:45,411 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:45,419 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:45,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:45,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1557202683, now seen corresponding path program 1 times [2022-02-21 04:15:45,420 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:45,420 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998897175] [2022-02-21 04:15:45,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:45,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:45,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:45,465 INFO L290 TraceCheckUtils]: 0: Hoare triple {1855#true} assume !false; {1855#true} is VALID [2022-02-21 04:15:45,466 INFO L290 TraceCheckUtils]: 1: Hoare triple {1855#true} assume test_~splverifierCounter~0#1 < 4; {1855#true} is VALID [2022-02-21 04:15:45,466 INFO L290 TraceCheckUtils]: 2: Hoare triple {1855#true} test_~tmp~4#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; {1855#true} is VALID [2022-02-21 04:15:45,466 INFO L290 TraceCheckUtils]: 3: Hoare triple {1855#true} assume !(0 != test_~tmp~4#1); {1855#true} is VALID [2022-02-21 04:15:45,466 INFO L290 TraceCheckUtils]: 4: Hoare triple {1855#true} test_~tmp___0~1#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; {1855#true} is VALID [2022-02-21 04:15:45,466 INFO L290 TraceCheckUtils]: 5: Hoare triple {1855#true} assume !(0 != test_~tmp___0~1#1); {1855#true} is VALID [2022-02-21 04:15:45,466 INFO L290 TraceCheckUtils]: 6: Hoare triple {1855#true} test_~tmp___2~0#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; {1855#true} is VALID [2022-02-21 04:15:45,467 INFO L290 TraceCheckUtils]: 7: Hoare triple {1855#true} assume 0 != test_~tmp___2~0#1; {1855#true} is VALID [2022-02-21 04:15:45,467 INFO L290 TraceCheckUtils]: 8: Hoare triple {1855#true} assume { :begin_inline_timeShift } true; {1855#true} is VALID [2022-02-21 04:15:45,467 INFO L290 TraceCheckUtils]: 9: Hoare triple {1855#true} assume !(0 != ~pumpRunning~0); {1855#true} is VALID [2022-02-21 04:15:45,467 INFO L290 TraceCheckUtils]: 10: Hoare triple {1855#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret35#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; {1855#true} is VALID [2022-02-21 04:15:45,467 INFO L290 TraceCheckUtils]: 11: Hoare triple {1855#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; {1855#true} is VALID [2022-02-21 04:15:45,468 INFO L290 TraceCheckUtils]: 12: Hoare triple {1855#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1; {1855#true} is VALID [2022-02-21 04:15:45,468 INFO L290 TraceCheckUtils]: 13: Hoare triple {1855#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; {1857#(<= 1 |ULTIMATE.start_isHighWaterSensorDry_#res#1|)} is VALID [2022-02-21 04:15:45,469 INFO L290 TraceCheckUtils]: 14: Hoare triple {1857#(<= 1 |ULTIMATE.start_isHighWaterSensorDry_#res#1|)} isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; {1858#(<= 1 |ULTIMATE.start_isHighWaterLevel_~tmp~8#1|)} is VALID [2022-02-21 04:15:45,469 INFO L290 TraceCheckUtils]: 15: Hoare triple {1858#(<= 1 |ULTIMATE.start_isHighWaterLevel_~tmp~8#1|)} assume !(0 != isHighWaterLevel_~tmp~8#1);isHighWaterLevel_~tmp___0~2#1 := 1; {1856#false} is VALID [2022-02-21 04:15:45,469 INFO L290 TraceCheckUtils]: 16: Hoare triple {1856#false} isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; {1856#false} is VALID [2022-02-21 04:15:45,476 INFO L290 TraceCheckUtils]: 17: Hoare triple {1856#false} processEnvironment__wrappee__highWaterSensor_#t~ret34#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret34#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1; {1856#false} is VALID [2022-02-21 04:15:45,476 INFO L290 TraceCheckUtils]: 18: Hoare triple {1856#false} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {1856#false} is VALID [2022-02-21 04:15:45,476 INFO L290 TraceCheckUtils]: 19: Hoare triple {1856#false} assume { :end_inline_processEnvironment__wrappee__base } true; {1856#false} is VALID [2022-02-21 04:15:45,477 INFO L290 TraceCheckUtils]: 20: Hoare triple {1856#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {1856#false} is VALID [2022-02-21 04:15:45,477 INFO L290 TraceCheckUtils]: 21: Hoare triple {1856#false} assume { :end_inline_processEnvironment } true; {1856#false} is VALID [2022-02-21 04:15:45,477 INFO L290 TraceCheckUtils]: 22: Hoare triple {1856#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; {1856#false} is VALID [2022-02-21 04:15:45,477 INFO L290 TraceCheckUtils]: 23: Hoare triple {1856#false} __utac_acc__Specification1_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret4#1;havoc __utac_acc__Specification1_spec__1_#t~ret4#1; {1856#false} is VALID [2022-02-21 04:15:45,477 INFO L290 TraceCheckUtils]: 24: Hoare triple {1856#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); {1856#false} is VALID [2022-02-21 04:15:45,477 INFO L290 TraceCheckUtils]: 25: Hoare triple {1856#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {1856#false} is VALID [2022-02-21 04:15:45,478 INFO L290 TraceCheckUtils]: 26: Hoare triple {1856#false} assume { :end_inline_timeShift } true; {1856#false} is VALID [2022-02-21 04:15:45,478 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 04:15:45,478 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:45,478 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998897175] [2022-02-21 04:15:45,478 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998897175] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:45,479 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:45,479 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:15:45,479 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138428295] [2022-02-21 04:15:45,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:45,479 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:45,479 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:45,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-21 04:15:45,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-21 04:15:45,480 INFO L87 Difference]: Start difference. First operand 234 states and 296 transitions. cyclomatic complexity: 64 Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 04:15:45,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:45,858 INFO L93 Difference]: Finished difference Result 455 states and 567 transitions. [2022-02-21 04:15:45,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-21 04:15:45,859 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 04:15:45,873 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:45,874 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 455 states and 567 transitions. [2022-02-21 04:15:45,885 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 320 [2022-02-21 04:15:45,896 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 455 states to 455 states and 567 transitions. [2022-02-21 04:15:45,896 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 455 [2022-02-21 04:15:45,897 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 455 [2022-02-21 04:15:45,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 455 states and 567 transitions. [2022-02-21 04:15:45,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:45,897 INFO L681 BuchiCegarLoop]: Abstraction has 455 states and 567 transitions. [2022-02-21 04:15:45,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states and 567 transitions. [2022-02-21 04:15:45,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 246. [2022-02-21 04:15:45,903 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:45,904 INFO L82 GeneralOperation]: Start isEquivalent. First operand 455 states and 567 transitions. Second operand has 246 states, 246 states have (on average 1.2520325203252032) internal successors, (308), 245 states have internal predecessors, (308), 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 04:15:45,904 INFO L74 IsIncluded]: Start isIncluded. First operand 455 states and 567 transitions. Second operand has 246 states, 246 states have (on average 1.2520325203252032) internal successors, (308), 245 states have internal predecessors, (308), 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 04:15:45,905 INFO L87 Difference]: Start difference. First operand 455 states and 567 transitions. Second operand has 246 states, 246 states have (on average 1.2520325203252032) internal successors, (308), 245 states have internal predecessors, (308), 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 04:15:45,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:45,915 INFO L93 Difference]: Finished difference Result 455 states and 567 transitions. [2022-02-21 04:15:45,915 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 567 transitions. [2022-02-21 04:15:45,916 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:45,916 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:45,917 INFO L74 IsIncluded]: Start isIncluded. First operand has 246 states, 246 states have (on average 1.2520325203252032) internal successors, (308), 245 states have internal predecessors, (308), 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 455 states and 567 transitions. [2022-02-21 04:15:45,917 INFO L87 Difference]: Start difference. First operand has 246 states, 246 states have (on average 1.2520325203252032) internal successors, (308), 245 states have internal predecessors, (308), 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 455 states and 567 transitions. [2022-02-21 04:15:45,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:45,928 INFO L93 Difference]: Finished difference Result 455 states and 567 transitions. [2022-02-21 04:15:45,928 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 567 transitions. [2022-02-21 04:15:45,928 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:45,929 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:45,929 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:45,929 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:45,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 246 states have (on average 1.2520325203252032) internal successors, (308), 245 states have internal predecessors, (308), 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 04:15:45,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 308 transitions. [2022-02-21 04:15:45,934 INFO L704 BuchiCegarLoop]: Abstraction has 246 states and 308 transitions. [2022-02-21 04:15:45,934 INFO L587 BuchiCegarLoop]: Abstraction has 246 states and 308 transitions. [2022-02-21 04:15:45,935 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:15:45,935 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 246 states and 308 transitions. [2022-02-21 04:15:45,936 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 170 [2022-02-21 04:15:45,936 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:45,936 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:45,936 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:45,937 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:45,937 INFO L791 eck$LassoCheckResult]: Stem: 2505#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2393#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~9#1, main_~tmp~10#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 2350#L104 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2351#L97 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 2433#L112 main_#t~ret48#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret48#1;havoc main_#t~ret48#1; 2434#L856 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 2412#L833 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_#t~nondet33#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; 2413#L497-2 [2022-02-21 04:15:45,937 INFO L793 eck$LassoCheckResult]: Loop: 2413#L497-2 assume !false; 2532#L498 assume test_~splverifierCounter~0#1 < 4; 2531#L499 test_~tmp~4#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 2528#L507 assume !(0 != test_~tmp~4#1); 2525#L507-2 test_~tmp___0~1#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 2521#L517 assume !(0 != test_~tmp___0~1#1); 2518#L517-2 test_~tmp___2~0#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 2515#L527 assume 0 != test_~tmp___2~0#1; 2513#L533-2 assume { :begin_inline_timeShift } true; 2499#L566 assume !(0 != ~pumpRunning~0); 2417#L566-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret35#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 2397#L624 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 2398#L598-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1; 2447#L954-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~12#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; 2448#L959-1 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 2523#L744-3 assume !(0 != isHighWaterLevel_~tmp~8#1);isHighWaterLevel_~tmp___0~2#1 := 1; 2326#L744-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 2502#L750-1 processEnvironment__wrappee__highWaterSensor_#t~ret34#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret34#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1; 2385#L602-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2387#L590-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2506#L598-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2450#L624-1 assume { :end_inline_processEnvironment } true; 2548#L573-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 2546#L914-2 __utac_acc__Specification1_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret4#1;havoc __utac_acc__Specification1_spec__1_#t~ret4#1; 2543#L61 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 2540#L61-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 2536#L583 assume { :end_inline_timeShift } true; 2413#L497-2 [2022-02-21 04:15:45,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:45,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-02-21 04:15:45,938 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:45,938 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490517000] [2022-02-21 04:15:45,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:45,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:45,946 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:45,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:45,953 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:45,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:45,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1726647363, now seen corresponding path program 1 times [2022-02-21 04:15:45,954 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:45,954 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000524982] [2022-02-21 04:15:45,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:45,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:45,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:45,998 INFO L290 TraceCheckUtils]: 0: Hoare triple {3478#true} assume !false; {3478#true} is VALID [2022-02-21 04:15:45,999 INFO L290 TraceCheckUtils]: 1: Hoare triple {3478#true} assume test_~splverifierCounter~0#1 < 4; {3478#true} is VALID [2022-02-21 04:15:45,999 INFO L290 TraceCheckUtils]: 2: Hoare triple {3478#true} test_~tmp~4#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; {3478#true} is VALID [2022-02-21 04:15:45,999 INFO L290 TraceCheckUtils]: 3: Hoare triple {3478#true} assume !(0 != test_~tmp~4#1); {3478#true} is VALID [2022-02-21 04:15:45,999 INFO L290 TraceCheckUtils]: 4: Hoare triple {3478#true} test_~tmp___0~1#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; {3478#true} is VALID [2022-02-21 04:15:45,999 INFO L290 TraceCheckUtils]: 5: Hoare triple {3478#true} assume !(0 != test_~tmp___0~1#1); {3478#true} is VALID [2022-02-21 04:15:45,999 INFO L290 TraceCheckUtils]: 6: Hoare triple {3478#true} test_~tmp___2~0#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; {3478#true} is VALID [2022-02-21 04:15:45,999 INFO L290 TraceCheckUtils]: 7: Hoare triple {3478#true} assume 0 != test_~tmp___2~0#1; {3478#true} is VALID [2022-02-21 04:15:45,999 INFO L290 TraceCheckUtils]: 8: Hoare triple {3478#true} assume { :begin_inline_timeShift } true; {3478#true} is VALID [2022-02-21 04:15:46,000 INFO L290 TraceCheckUtils]: 9: Hoare triple {3478#true} assume !(0 != ~pumpRunning~0); {3478#true} is VALID [2022-02-21 04:15:46,000 INFO L290 TraceCheckUtils]: 10: Hoare triple {3478#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret35#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; {3478#true} is VALID [2022-02-21 04:15:46,000 INFO L290 TraceCheckUtils]: 11: Hoare triple {3478#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; {3478#true} is VALID [2022-02-21 04:15:46,000 INFO L290 TraceCheckUtils]: 12: Hoare triple {3478#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1; {3478#true} is VALID [2022-02-21 04:15:46,000 INFO L290 TraceCheckUtils]: 13: Hoare triple {3478#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~12#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; {3478#true} is VALID [2022-02-21 04:15:46,000 INFO L290 TraceCheckUtils]: 14: Hoare triple {3478#true} isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; {3478#true} is VALID [2022-02-21 04:15:46,001 INFO L290 TraceCheckUtils]: 15: Hoare triple {3478#true} assume !(0 != isHighWaterLevel_~tmp~8#1);isHighWaterLevel_~tmp___0~2#1 := 1; {3480#(<= 1 |ULTIMATE.start_isHighWaterLevel_~tmp___0~2#1|)} is VALID [2022-02-21 04:15:46,002 INFO L290 TraceCheckUtils]: 16: Hoare triple {3480#(<= 1 |ULTIMATE.start_isHighWaterLevel_~tmp___0~2#1|)} isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; {3481#(<= 1 |ULTIMATE.start_isHighWaterLevel_#res#1|)} is VALID [2022-02-21 04:15:46,002 INFO L290 TraceCheckUtils]: 17: Hoare triple {3481#(<= 1 |ULTIMATE.start_isHighWaterLevel_#res#1|)} processEnvironment__wrappee__highWaterSensor_#t~ret34#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret34#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1; {3482#(<= 1 |ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5#1|)} is VALID [2022-02-21 04:15:46,002 INFO L290 TraceCheckUtils]: 18: Hoare triple {3482#(<= 1 |ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5#1|)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {3479#false} is VALID [2022-02-21 04:15:46,003 INFO L290 TraceCheckUtils]: 19: Hoare triple {3479#false} assume { :end_inline_processEnvironment__wrappee__base } true; {3479#false} is VALID [2022-02-21 04:15:46,003 INFO L290 TraceCheckUtils]: 20: Hoare triple {3479#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {3479#false} is VALID [2022-02-21 04:15:46,003 INFO L290 TraceCheckUtils]: 21: Hoare triple {3479#false} assume { :end_inline_processEnvironment } true; {3479#false} is VALID [2022-02-21 04:15:46,003 INFO L290 TraceCheckUtils]: 22: Hoare triple {3479#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; {3479#false} is VALID [2022-02-21 04:15:46,003 INFO L290 TraceCheckUtils]: 23: Hoare triple {3479#false} __utac_acc__Specification1_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret4#1;havoc __utac_acc__Specification1_spec__1_#t~ret4#1; {3479#false} is VALID [2022-02-21 04:15:46,003 INFO L290 TraceCheckUtils]: 24: Hoare triple {3479#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); {3479#false} is VALID [2022-02-21 04:15:46,003 INFO L290 TraceCheckUtils]: 25: Hoare triple {3479#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {3479#false} is VALID [2022-02-21 04:15:46,003 INFO L290 TraceCheckUtils]: 26: Hoare triple {3479#false} assume { :end_inline_timeShift } true; {3479#false} is VALID [2022-02-21 04:15:46,004 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 04:15:46,004 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:46,004 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000524982] [2022-02-21 04:15:46,004 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000524982] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:46,004 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:46,004 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:15:46,004 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661535344] [2022-02-21 04:15:46,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:46,005 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:46,005 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:46,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:15:46,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:15:46,005 INFO L87 Difference]: Start difference. First operand 246 states and 308 transitions. cyclomatic complexity: 64 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 04:15:46,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:46,653 INFO L93 Difference]: Finished difference Result 580 states and 721 transitions. [2022-02-21 04:15:46,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:15:46,654 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 04:15:46,670 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:46,671 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 580 states and 721 transitions. [2022-02-21 04:15:46,684 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 414 [2022-02-21 04:15:46,696 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 580 states to 580 states and 721 transitions. [2022-02-21 04:15:46,696 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 580 [2022-02-21 04:15:46,696 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 580 [2022-02-21 04:15:46,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 580 states and 721 transitions. [2022-02-21 04:15:46,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:46,697 INFO L681 BuchiCegarLoop]: Abstraction has 580 states and 721 transitions. [2022-02-21 04:15:46,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states and 721 transitions. [2022-02-21 04:15:46,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 264. [2022-02-21 04:15:46,702 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:46,702 INFO L82 GeneralOperation]: Start isEquivalent. First operand 580 states and 721 transitions. Second operand has 264 states, 264 states have (on average 1.2348484848484849) internal successors, (326), 263 states have internal predecessors, (326), 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 04:15:46,703 INFO L74 IsIncluded]: Start isIncluded. First operand 580 states and 721 transitions. Second operand has 264 states, 264 states have (on average 1.2348484848484849) internal successors, (326), 263 states have internal predecessors, (326), 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 04:15:46,703 INFO L87 Difference]: Start difference. First operand 580 states and 721 transitions. Second operand has 264 states, 264 states have (on average 1.2348484848484849) internal successors, (326), 263 states have internal predecessors, (326), 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 04:15:46,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:46,714 INFO L93 Difference]: Finished difference Result 580 states and 721 transitions. [2022-02-21 04:15:46,714 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 721 transitions. [2022-02-21 04:15:46,715 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:46,715 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:46,715 INFO L74 IsIncluded]: Start isIncluded. First operand has 264 states, 264 states have (on average 1.2348484848484849) internal successors, (326), 263 states have internal predecessors, (326), 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 580 states and 721 transitions. [2022-02-21 04:15:46,716 INFO L87 Difference]: Start difference. First operand has 264 states, 264 states have (on average 1.2348484848484849) internal successors, (326), 263 states have internal predecessors, (326), 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 580 states and 721 transitions. [2022-02-21 04:15:46,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:46,727 INFO L93 Difference]: Finished difference Result 580 states and 721 transitions. [2022-02-21 04:15:46,727 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 721 transitions. [2022-02-21 04:15:46,728 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:46,728 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:46,728 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:46,728 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:46,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 264 states have (on average 1.2348484848484849) internal successors, (326), 263 states have internal predecessors, (326), 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 04:15:46,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 326 transitions. [2022-02-21 04:15:46,732 INFO L704 BuchiCegarLoop]: Abstraction has 264 states and 326 transitions. [2022-02-21 04:15:46,732 INFO L587 BuchiCegarLoop]: Abstraction has 264 states and 326 transitions. [2022-02-21 04:15:46,732 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2022-02-21 04:15:46,732 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 264 states and 326 transitions. [2022-02-21 04:15:46,733 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 182 [2022-02-21 04:15:46,733 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:46,733 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:46,734 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:46,734 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:46,734 INFO L791 eck$LassoCheckResult]: Stem: 4263#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 4141#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~9#1, main_~tmp~10#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 4099#L104 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 4100#L97 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 4182#L112 main_#t~ret48#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret48#1;havoc main_#t~ret48#1; 4183#L856 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 4162#L833 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_#t~nondet33#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; 4119#L497-2 [2022-02-21 04:15:46,734 INFO L793 eck$LassoCheckResult]: Loop: 4119#L497-2 assume !false; 4120#L498 assume test_~splverifierCounter~0#1 < 4; 4152#L499 test_~tmp~4#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 4103#L507 assume !(0 != test_~tmp~4#1); 4104#L507-2 test_~tmp___0~1#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 4116#L517 assume !(0 != test_~tmp___0~1#1); 4147#L517-2 test_~tmp___2~0#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 4148#L527 assume 0 != test_~tmp___2~0#1; 4095#L533-2 assume { :begin_inline_timeShift } true; 4096#L566 assume !(0 != ~pumpRunning~0); 4164#L566-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret35#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 4149#L624 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 4150#L598-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1; 4198#L954-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; 4199#L959-1 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 4077#L744-3 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~2#1 := 0; 4078#L744-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 4259#L750-1 processEnvironment__wrappee__highWaterSensor_#t~ret34#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret34#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1; 4273#L602-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 4265#L590-2 assume { :end_inline_processEnvironment__wrappee__base } true; 4260#L598-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 4202#L624-1 assume { :end_inline_processEnvironment } true; 4227#L573-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 4325#L914-2 __utac_acc__Specification1_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret4#1;havoc __utac_acc__Specification1_spec__1_#t~ret4#1; 4210#L61 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 4211#L61-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 4240#L583 assume { :end_inline_timeShift } true; 4119#L497-2 [2022-02-21 04:15:46,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:46,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2022-02-21 04:15:46,735 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:46,735 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189849944] [2022-02-21 04:15:46,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:46,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:46,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:46,742 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:46,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:46,748 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:46,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:46,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1815368121, now seen corresponding path program 1 times [2022-02-21 04:15:46,748 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:46,748 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192518291] [2022-02-21 04:15:46,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:46,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:46,754 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:46,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:46,758 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:46,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:46,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1440080381, now seen corresponding path program 1 times [2022-02-21 04:15:46,759 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:46,759 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311240635] [2022-02-21 04:15:46,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:46,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:46,768 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:46,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:46,777 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:49,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:15:49 BoogieIcfgContainer [2022-02-21 04:15:49,290 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:15:49,291 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:15:49,291 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:15:49,291 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:15:49,291 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:43" (3/4) ... [2022-02-21 04:15:49,293 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:15:49,342 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:15:49,342 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:15:49,344 INFO L158 Benchmark]: Toolchain (without parser) took 6576.46ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 104.6MB in the beginning and 58.5MB in the end (delta: 46.1MB). Peak memory consumption was 93.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:49,344 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 81.8MB. Free memory was 37.4MB in the beginning and 37.3MB in the end (delta: 40.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:15:49,344 INFO L158 Benchmark]: CACSL2BoogieTranslator took 411.50ms. Allocated memory is still 138.4MB. Free memory was 104.6MB in the beginning and 102.5MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:15:49,344 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.06ms. Allocated memory is still 138.4MB. Free memory was 101.9MB in the beginning and 97.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:49,345 INFO L158 Benchmark]: Boogie Preprocessor took 37.38ms. Allocated memory is still 138.4MB. Free memory was 97.7MB in the beginning and 94.9MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:49,345 INFO L158 Benchmark]: RCFGBuilder took 671.13ms. Allocated memory is still 138.4MB. Free memory was 94.9MB in the beginning and 66.3MB in the end (delta: 28.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-02-21 04:15:49,345 INFO L158 Benchmark]: BuchiAutomizer took 5331.01ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 65.5MB in the beginning and 60.6MB in the end (delta: 4.9MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. [2022-02-21 04:15:49,345 INFO L158 Benchmark]: Witness Printer took 51.73ms. Allocated memory is still 186.6MB. Free memory was 60.6MB in the beginning and 58.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:49,347 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 0.19ms. Allocated memory is still 81.8MB. Free memory was 37.4MB in the beginning and 37.3MB in the end (delta: 40.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 411.50ms. Allocated memory is still 138.4MB. Free memory was 104.6MB in the beginning and 102.5MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.06ms. Allocated memory is still 138.4MB. Free memory was 101.9MB in the beginning and 97.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.38ms. Allocated memory is still 138.4MB. Free memory was 97.7MB in the beginning and 94.9MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 671.13ms. Allocated memory is still 138.4MB. Free memory was 94.9MB in the beginning and 66.3MB in the end (delta: 28.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 5331.01ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 65.5MB in the beginning and 60.6MB in the end (delta: 4.9MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. * Witness Printer took 51.73ms. Allocated memory is still 186.6MB. Free memory was 60.6MB in the beginning and 58.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 264 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.2s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. Construction of modules took 0.1s. Büchi inclusion checks took 1.5s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 525 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 264 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2137 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2137 mSDsluCounter, 2277 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1211 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 198 IncrementalHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 1066 mSDtfsCounter, 198 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 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: 497]: 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@797c3008=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@399386ae=0, head=0, tmp___0=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55b90e6e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6210723e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@590aa766=29, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6871bc8b=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f27326a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47867116=0, tmp___0=0, methaneLevelCritical=0, tmp=0, retValue_acc=1, \result=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75661993=0, tmp=1, retValue_acc=1, \result=1, \result=1, retValue_acc=0, tmp=1, tmp___2=29, cleanupTimeShifts=4, \result=0, head=0, tmp___1=0, retValue_acc=0, NULL=0, tmp=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@280b5ff3=0, tmp=0, \result=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 497]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L286] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L559] int pumpRunning = 0; [L560] int systemActive = 1; [L774] int cleanupTimeShifts = 4; [L871] int waterLevel = 1; [L872] int methaneLevelCritical = 0; [L847] int retValue_acc ; [L848] int tmp ; [L852] FCALL select_helpers() [L853] FCALL select_features() [L854] CALL, EXPR valid_product() [L108] int retValue_acc ; [L111] retValue_acc = 1 [L112] return (retValue_acc); [L854] RET, EXPR valid_product() [L854] tmp = valid_product() [L856] COND TRUE \read(tmp) [L858] FCALL setup() [L859] CALL runTest() [L841] CALL test() [L488] int splverifierCounter ; [L489] int tmp ; [L490] int tmp___0 ; [L491] int tmp___1 ; [L492] int tmp___2 ; [L495] splverifierCounter = 0 Loop: [L497] COND TRUE 1 [L499] COND TRUE splverifierCounter < 4 [L505] tmp = __VERIFIER_nondet_int() [L507] COND FALSE !(\read(tmp)) [L515] tmp___0 = __VERIFIER_nondet_int() [L517] COND FALSE !(\read(tmp___0)) [L525] tmp___2 = __VERIFIER_nondet_int() [L527] COND TRUE \read(tmp___2) [L540] CALL timeShift() [L566] COND FALSE !(\read(pumpRunning)) [L573] COND TRUE \read(systemActive) [L575] CALL processEnvironment() [L621] int tmp ; [L624] COND FALSE !(\read(pumpRunning)) [L639] CALL processEnvironment__wrappee__highWaterSensor() [L595] int tmp ; [L598] COND TRUE ! pumpRunning [L600] CALL, EXPR isHighWaterLevel() [L736] int retValue_acc ; [L737] int tmp ; [L738] int tmp___0 ; [L742] CALL, EXPR isHighWaterSensorDry() [L951] int retValue_acc ; [L954] COND TRUE waterLevel < 2 [L955] retValue_acc = 1 [L956] return (retValue_acc); [L742] RET, EXPR isHighWaterSensorDry() [L742] tmp = isHighWaterSensorDry() [L744] COND TRUE \read(tmp) [L745] tmp___0 = 0 [L749] retValue_acc = tmp___0 [L750] return (retValue_acc); [L600] RET, EXPR isHighWaterLevel() [L600] tmp = isHighWaterLevel() [L602] COND FALSE !(\read(tmp)) [L608] FCALL processEnvironment__wrappee__base() [L639] RET processEnvironment__wrappee__highWaterSensor() [L575] RET processEnvironment() [L581] CALL __utac_acc__Specification1_spec__1() [L54] int tmp ; [L55] int tmp___0 ; [L59] CALL, EXPR isMethaneLevelCritical() [L910] int retValue_acc ; [L913] retValue_acc = methaneLevelCritical [L914] return (retValue_acc); [L59] RET, EXPR isMethaneLevelCritical() [L59] tmp = isMethaneLevelCritical() [L61] COND FALSE !(\read(tmp)) [L581] RET __utac_acc__Specification1_spec__1() [L540] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:15:49,408 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)