./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product63.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 a80dbad4927e9382ff212f6acae971cadaba99bba92d1fbe50466813cfe135a1 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:17:22,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:17:22,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:17:22,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:17:22,737 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:17:22,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:17:22,739 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:17:22,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:17:22,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:17:22,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:17:22,752 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:17:22,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:17:22,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:17:22,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:17:22,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:17:22,763 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:17:22,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:17:22,769 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:17:22,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:17:22,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:17:22,780 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:17:22,781 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:17:22,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:17:22,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:17:22,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:17:22,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:17:22,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:17:22,793 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:17:22,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:17:22,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:17:22,795 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:17:22,796 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:17:22,797 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:17:22,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:17:22,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:17:22,799 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:17:22,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:17:22,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:17:22,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:17:22,801 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:17:22,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:17:22,802 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:17:22,829 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:17:22,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:17:22,830 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:17:22,830 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:17:22,831 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:17:22,831 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:17:22,831 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:17:22,831 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:17:22,832 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:17:22,832 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:17:22,832 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:17:22,833 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:17:22,833 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:17:22,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:17:22,833 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:17:22,833 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:17:22,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:17:22,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:17:22,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:17:22,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:17:22,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:17:22,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:17:22,834 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:17:22,834 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:17:22,834 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:17:22,834 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:17:22,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:17:22,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:17:22,835 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:17:22,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:17:22,835 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:17:22,836 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:17:22,836 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a80dbad4927e9382ff212f6acae971cadaba99bba92d1fbe50466813cfe135a1 [2022-02-21 04:17:23,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:17:23,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:17:23,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:17:23,064 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:17:23,064 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:17:23,065 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c [2022-02-21 04:17:23,114 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd1923ee2/22112008b2704ddda151f0752f816af9/FLAG32d6bf46e [2022-02-21 04:17:23,563 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:17:23,564 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c [2022-02-21 04:17:23,590 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd1923ee2/22112008b2704ddda151f0752f816af9/FLAG32d6bf46e [2022-02-21 04:17:24,102 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd1923ee2/22112008b2704ddda151f0752f816af9 [2022-02-21 04:17:24,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:17:24,106 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:17:24,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:24,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:17:24,110 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:17:24,111 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:24" (1/1) ... [2022-02-21 04:17:24,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a1d3d90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:24, skipping insertion in model container [2022-02-21 04:17:24,112 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:24" (1/1) ... [2022-02-21 04:17:24,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:17:24,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:17:24,269 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c[9205,9218] [2022-02-21 04:17:24,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:24,316 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:17:24,342 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c[9205,9218] [2022-02-21 04:17:24,363 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:24,375 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:17:24,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:24 WrapperNode [2022-02-21 04:17:24,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:24,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:24,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:17:24,377 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:17:24,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:24" (1/1) ... [2022-02-21 04:17:24,389 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:24" (1/1) ... [2022-02-21 04:17:24,433 INFO L137 Inliner]: procedures = 58, calls = 163, calls flagged for inlining = 60, calls inlined = 178, statements flattened = 1293 [2022-02-21 04:17:24,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:24,434 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:17:24,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:17:24,435 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:17:24,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:24" (1/1) ... [2022-02-21 04:17:24,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:24" (1/1) ... [2022-02-21 04:17:24,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:24" (1/1) ... [2022-02-21 04:17:24,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:24" (1/1) ... [2022-02-21 04:17:24,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:24" (1/1) ... [2022-02-21 04:17:24,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:24" (1/1) ... [2022-02-21 04:17:24,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:24" (1/1) ... [2022-02-21 04:17:24,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:17:24,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:17:24,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:17:24,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:17:24,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:24" (1/1) ... [2022-02-21 04:17:24,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:17:24,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:17:24,532 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:17:24,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:17:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:17:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:17:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:17:24,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:17:24,651 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:17:24,652 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:17:25,290 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:17:25,300 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:17:25,301 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:17:25,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:25 BoogieIcfgContainer [2022-02-21 04:17:25,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:17:25,303 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:17:25,303 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:17:25,305 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:17:25,306 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:25,306 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:17:24" (1/3) ... [2022-02-21 04:17:25,307 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68855db3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:25, skipping insertion in model container [2022-02-21 04:17:25,307 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:25,307 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:24" (2/3) ... [2022-02-21 04:17:25,307 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68855db3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:25, skipping insertion in model container [2022-02-21 04:17:25,307 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:25,308 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:25" (3/3) ... [2022-02-21 04:17:25,309 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product63.cil.c [2022-02-21 04:17:25,336 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:17:25,336 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:17:25,336 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:17:25,337 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:17:25,337 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:17:25,337 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:17:25,337 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:17:25,337 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:17:25,364 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 328 states, 327 states have (on average 1.3547400611620795) internal successors, (443), 327 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:25,436 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 216 [2022-02-21 04:17:25,436 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:25,436 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:25,442 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:25,442 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:25,442 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:17:25,445 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 328 states, 327 states have (on average 1.3547400611620795) internal successors, (443), 327 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:25,464 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 216 [2022-02-21 04:17:25,467 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:25,467 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:25,469 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:25,469 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:25,472 INFO L791 eck$LassoCheckResult]: Stem: 321#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 215#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 219#L176true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 234#L169true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 102#L184true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 66#L140true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 307#L113true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 197#L464-2true [2022-02-21 04:17:25,474 INFO L793 eck$LassoCheckResult]: Loop: 197#L464-2true assume !false; 155#L465true assume test_~splverifierCounter~0#1 < 4; 327#L466true test_~tmp~7#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 64#L474true assume !(0 != test_~tmp~7#1); 252#L474-2true test_~tmp___0~2#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 145#L484true assume !(0 != test_~tmp___0~2#1); 50#L484-2true test_~tmp___2~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 258#L494true assume 0 != test_~tmp___2~0#1; 323#L500-2true assume { :begin_inline_timeShift } true; 36#L206true assume !(0 != ~pumpRunning~0); 81#L206-2true assume !(0 != ~systemActive~0); 317#L213-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_#t~ret32#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 126#L565-5true __utac_acc__Specification3_spec__1_#t~ret30#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret30#1;havoc __utac_acc__Specification3_spec__1_#t~ret30#1; 37#L643true assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 84#L649-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 78#L223true assume { :end_inline_timeShift } true; 197#L464-2true [2022-02-21 04:17:25,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:25,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:17:25,485 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:25,486 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312761971] [2022-02-21 04:17:25,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:25,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:25,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:25,617 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:25,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:25,661 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:25,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:25,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1022346582, now seen corresponding path program 1 times [2022-02-21 04:17:25,664 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:25,665 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467588506] [2022-02-21 04:17:25,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:25,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:25,691 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:25,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:25,698 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:25,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:25,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1917201638, now seen corresponding path program 1 times [2022-02-21 04:17:25,699 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:25,700 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626035089] [2022-02-21 04:17:25,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:25,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:25,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:25,819 INFO L290 TraceCheckUtils]: 0: Hoare triple {336#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {338#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:25,820 INFO L290 TraceCheckUtils]: 1: Hoare triple {338#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; {338#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:25,821 INFO L290 TraceCheckUtils]: 2: Hoare triple {338#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {338#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:25,821 INFO L290 TraceCheckUtils]: 3: Hoare triple {338#(= 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~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; {339#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:17:25,823 INFO L290 TraceCheckUtils]: 4: Hoare triple {339#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; {340#(= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)} is VALID [2022-02-21 04:17:25,823 INFO L290 TraceCheckUtils]: 5: Hoare triple {340#(= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)} assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; {341#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:25,824 INFO L290 TraceCheckUtils]: 6: Hoare triple {341#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {341#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:25,825 INFO L290 TraceCheckUtils]: 7: Hoare triple {341#(not (= 0 ~systemActive~0))} assume !false; {341#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:25,826 INFO L290 TraceCheckUtils]: 8: Hoare triple {341#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {341#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:25,826 INFO L290 TraceCheckUtils]: 9: Hoare triple {341#(not (= 0 ~systemActive~0))} test_~tmp~7#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; {341#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:25,827 INFO L290 TraceCheckUtils]: 10: Hoare triple {341#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~7#1); {341#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:25,827 INFO L290 TraceCheckUtils]: 11: Hoare triple {341#(not (= 0 ~systemActive~0))} test_~tmp___0~2#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; {341#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:25,828 INFO L290 TraceCheckUtils]: 12: Hoare triple {341#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~2#1); {341#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:25,828 INFO L290 TraceCheckUtils]: 13: Hoare triple {341#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; {341#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:25,829 INFO L290 TraceCheckUtils]: 14: Hoare triple {341#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {341#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:25,829 INFO L290 TraceCheckUtils]: 15: Hoare triple {341#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {341#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:25,830 INFO L290 TraceCheckUtils]: 16: Hoare triple {341#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {341#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:25,830 INFO L290 TraceCheckUtils]: 17: Hoare triple {341#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {337#false} is VALID [2022-02-21 04:17:25,830 INFO L290 TraceCheckUtils]: 18: Hoare triple {337#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_#t~ret32#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; {337#false} is VALID [2022-02-21 04:17:25,831 INFO L290 TraceCheckUtils]: 19: Hoare triple {337#false} __utac_acc__Specification3_spec__1_#t~ret30#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret30#1;havoc __utac_acc__Specification3_spec__1_#t~ret30#1; {337#false} is VALID [2022-02-21 04:17:25,831 INFO L290 TraceCheckUtils]: 20: Hoare triple {337#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; {337#false} is VALID [2022-02-21 04:17:25,831 INFO L290 TraceCheckUtils]: 21: Hoare triple {337#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {337#false} is VALID [2022-02-21 04:17:25,831 INFO L290 TraceCheckUtils]: 22: Hoare triple {337#false} assume { :end_inline_timeShift } true; {337#false} is VALID [2022-02-21 04:17:25,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:17:25,832 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:25,833 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626035089] [2022-02-21 04:17:25,833 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626035089] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:25,833 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:25,833 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:17:25,834 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723502930] [2022-02-21 04:17:25,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:25,944 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:25,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:17:25,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:17:25,994 INFO L87 Difference]: Start difference. First operand has 328 states, 327 states have (on average 1.3547400611620795) internal successors, (443), 327 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:27,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:27,894 INFO L93 Difference]: Finished difference Result 713 states and 944 transitions. [2022-02-21 04:17:27,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:17:27,895 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:27,912 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:27,921 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 713 states and 944 transitions. [2022-02-21 04:17:27,944 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 467 [2022-02-21 04:17:27,973 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 713 states to 683 states and 914 transitions. [2022-02-21 04:17:27,975 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 683 [2022-02-21 04:17:27,977 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 683 [2022-02-21 04:17:27,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 683 states and 914 transitions. [2022-02-21 04:17:27,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:27,984 INFO L681 BuchiCegarLoop]: Abstraction has 683 states and 914 transitions. [2022-02-21 04:17:27,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states and 914 transitions. [2022-02-21 04:17:28,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 373. [2022-02-21 04:17:28,037 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:28,041 INFO L82 GeneralOperation]: Start isEquivalent. First operand 683 states and 914 transitions. Second operand has 373 states, 373 states have (on average 1.3378016085790885) internal successors, (499), 372 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:28,042 INFO L74 IsIncluded]: Start isIncluded. First operand 683 states and 914 transitions. Second operand has 373 states, 373 states have (on average 1.3378016085790885) internal successors, (499), 372 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:28,045 INFO L87 Difference]: Start difference. First operand 683 states and 914 transitions. Second operand has 373 states, 373 states have (on average 1.3378016085790885) internal successors, (499), 372 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:28,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:28,074 INFO L93 Difference]: Finished difference Result 683 states and 914 transitions. [2022-02-21 04:17:28,074 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 914 transitions. [2022-02-21 04:17:28,083 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:28,083 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:28,084 INFO L74 IsIncluded]: Start isIncluded. First operand has 373 states, 373 states have (on average 1.3378016085790885) internal successors, (499), 372 states have internal predecessors, (499), 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 683 states and 914 transitions. [2022-02-21 04:17:28,085 INFO L87 Difference]: Start difference. First operand has 373 states, 373 states have (on average 1.3378016085790885) internal successors, (499), 372 states have internal predecessors, (499), 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 683 states and 914 transitions. [2022-02-21 04:17:28,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:28,103 INFO L93 Difference]: Finished difference Result 683 states and 914 transitions. [2022-02-21 04:17:28,103 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 914 transitions. [2022-02-21 04:17:28,104 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:28,104 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:28,104 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:28,104 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:28,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 373 states have (on average 1.3378016085790885) internal successors, (499), 372 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:28,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 499 transitions. [2022-02-21 04:17:28,113 INFO L704 BuchiCegarLoop]: Abstraction has 373 states and 499 transitions. [2022-02-21 04:17:28,113 INFO L587 BuchiCegarLoop]: Abstraction has 373 states and 499 transitions. [2022-02-21 04:17:28,114 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:17:28,114 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 373 states and 499 transitions. [2022-02-21 04:17:28,115 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 256 [2022-02-21 04:17:28,115 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:28,115 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:28,117 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:28,117 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:28,117 INFO L791 eck$LassoCheckResult]: Stem: 1374#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1340#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1341#L176 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1342#L169 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 1223#L184 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 1178#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1179#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1195#L464-2 [2022-02-21 04:17:28,118 INFO L793 eck$LassoCheckResult]: Loop: 1195#L464-2 assume !false; 1284#L465 assume test_~splverifierCounter~0#1 < 4; 1285#L466 test_~tmp~7#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 1175#L474 assume !(0 != test_~tmp~7#1); 1177#L474-2 test_~tmp___0~2#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 1273#L484 assume !(0 != test_~tmp___0~2#1); 1152#L484-2 test_~tmp___2~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 1153#L494 assume 0 != test_~tmp___2~0#1; 1357#L500-2 assume { :begin_inline_timeShift } true; 1126#L206 assume !(0 != ~pumpRunning~0); 1127#L206-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1200#L290 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret10#1, isMethaneAlarm_~retValue_acc~3#1;havoc isMethaneAlarm_~retValue_acc~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 1283#L565 isMethaneAlarm_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~3#1 := isMethaneAlarm_#t~ret10#1;havoc isMethaneAlarm_#t~ret10#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~3#1; 1201#L351 processEnvironment_#t~ret8#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret8#1;havoc processEnvironment_#t~ret8#1; 1202#L294 assume 0 != processEnvironment_~tmp~3#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1263#L341-1 assume { :end_inline_deactivatePump } true; 1244#L290-1 assume { :end_inline_processEnvironment } true; 1269#L213-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_#t~ret32#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 1256#L565-5 __utac_acc__Specification3_spec__1_#t~ret30#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret30#1;havoc __utac_acc__Specification3_spec__1_#t~ret30#1; 1129#L643 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 1130#L649-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1194#L223 assume { :end_inline_timeShift } true; 1195#L464-2 [2022-02-21 04:17:28,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:28,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:17:28,118 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:28,119 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428284712] [2022-02-21 04:17:28,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:28,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:28,155 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:28,175 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:28,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:28,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1369368321, now seen corresponding path program 1 times [2022-02-21 04:17:28,178 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:28,178 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422563712] [2022-02-21 04:17:28,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:28,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:28,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:28,192 INFO L290 TraceCheckUtils]: 0: Hoare triple {2803#true} assume !false; {2803#true} is VALID [2022-02-21 04:17:28,192 INFO L290 TraceCheckUtils]: 1: Hoare triple {2803#true} assume test_~splverifierCounter~0#1 < 4; {2803#true} is VALID [2022-02-21 04:17:28,192 INFO L290 TraceCheckUtils]: 2: Hoare triple {2803#true} test_~tmp~7#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; {2803#true} is VALID [2022-02-21 04:17:28,193 INFO L290 TraceCheckUtils]: 3: Hoare triple {2803#true} assume !(0 != test_~tmp~7#1); {2803#true} is VALID [2022-02-21 04:17:28,193 INFO L290 TraceCheckUtils]: 4: Hoare triple {2803#true} test_~tmp___0~2#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; {2803#true} is VALID [2022-02-21 04:17:28,193 INFO L290 TraceCheckUtils]: 5: Hoare triple {2803#true} assume !(0 != test_~tmp___0~2#1); {2803#true} is VALID [2022-02-21 04:17:28,193 INFO L290 TraceCheckUtils]: 6: Hoare triple {2803#true} test_~tmp___2~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; {2803#true} is VALID [2022-02-21 04:17:28,193 INFO L290 TraceCheckUtils]: 7: Hoare triple {2803#true} assume 0 != test_~tmp___2~0#1; {2803#true} is VALID [2022-02-21 04:17:28,193 INFO L290 TraceCheckUtils]: 8: Hoare triple {2803#true} assume { :begin_inline_timeShift } true; {2803#true} is VALID [2022-02-21 04:17:28,194 INFO L290 TraceCheckUtils]: 9: Hoare triple {2803#true} assume !(0 != ~pumpRunning~0); {2805#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:28,194 INFO L290 TraceCheckUtils]: 10: Hoare triple {2805#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; {2805#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:28,194 INFO L290 TraceCheckUtils]: 11: Hoare triple {2805#(= ~pumpRunning~0 0)} assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret10#1, isMethaneAlarm_~retValue_acc~3#1;havoc isMethaneAlarm_~retValue_acc~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; {2804#false} is VALID [2022-02-21 04:17:28,195 INFO L290 TraceCheckUtils]: 12: Hoare triple {2804#false} isMethaneAlarm_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~3#1 := isMethaneAlarm_#t~ret10#1;havoc isMethaneAlarm_#t~ret10#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~3#1; {2804#false} is VALID [2022-02-21 04:17:28,195 INFO L290 TraceCheckUtils]: 13: Hoare triple {2804#false} processEnvironment_#t~ret8#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret8#1;havoc processEnvironment_#t~ret8#1; {2804#false} is VALID [2022-02-21 04:17:28,195 INFO L290 TraceCheckUtils]: 14: Hoare triple {2804#false} assume 0 != processEnvironment_~tmp~3#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; {2804#false} is VALID [2022-02-21 04:17:28,195 INFO L290 TraceCheckUtils]: 15: Hoare triple {2804#false} assume { :end_inline_deactivatePump } true; {2804#false} is VALID [2022-02-21 04:17:28,195 INFO L290 TraceCheckUtils]: 16: Hoare triple {2804#false} assume { :end_inline_processEnvironment } true; {2804#false} is VALID [2022-02-21 04:17:28,195 INFO L290 TraceCheckUtils]: 17: Hoare triple {2804#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_#t~ret32#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; {2804#false} is VALID [2022-02-21 04:17:28,196 INFO L290 TraceCheckUtils]: 18: Hoare triple {2804#false} __utac_acc__Specification3_spec__1_#t~ret30#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret30#1;havoc __utac_acc__Specification3_spec__1_#t~ret30#1; {2804#false} is VALID [2022-02-21 04:17:28,196 INFO L290 TraceCheckUtils]: 19: Hoare triple {2804#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; {2804#false} is VALID [2022-02-21 04:17:28,196 INFO L290 TraceCheckUtils]: 20: Hoare triple {2804#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {2804#false} is VALID [2022-02-21 04:17:28,196 INFO L290 TraceCheckUtils]: 21: Hoare triple {2804#false} assume { :end_inline_timeShift } true; {2804#false} is VALID [2022-02-21 04:17:28,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:17:28,196 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:28,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422563712] [2022-02-21 04:17:28,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422563712] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:28,197 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:28,197 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:17:28,197 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158474785] [2022-02-21 04:17:28,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:28,198 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:28,198 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:28,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:17:28,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:17:28,199 INFO L87 Difference]: Start difference. First operand 373 states and 499 transitions. cyclomatic complexity: 129 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:28,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:28,517 INFO L93 Difference]: Finished difference Result 381 states and 484 transitions. [2022-02-21 04:17:28,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:17:28,518 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:28,532 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:28,533 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 381 states and 484 transitions. [2022-02-21 04:17:28,541 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 267 [2022-02-21 04:17:28,548 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 381 states to 381 states and 484 transitions. [2022-02-21 04:17:28,549 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 381 [2022-02-21 04:17:28,549 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 381 [2022-02-21 04:17:28,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 381 states and 484 transitions. [2022-02-21 04:17:28,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:28,550 INFO L681 BuchiCegarLoop]: Abstraction has 381 states and 484 transitions. [2022-02-21 04:17:28,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states and 484 transitions. [2022-02-21 04:17:28,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2022-02-21 04:17:28,556 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:28,557 INFO L82 GeneralOperation]: Start isEquivalent. First operand 381 states and 484 transitions. Second operand has 381 states, 381 states have (on average 1.2703412073490814) internal successors, (484), 380 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:28,558 INFO L74 IsIncluded]: Start isIncluded. First operand 381 states and 484 transitions. Second operand has 381 states, 381 states have (on average 1.2703412073490814) internal successors, (484), 380 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:28,559 INFO L87 Difference]: Start difference. First operand 381 states and 484 transitions. Second operand has 381 states, 381 states have (on average 1.2703412073490814) internal successors, (484), 380 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:28,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:28,566 INFO L93 Difference]: Finished difference Result 381 states and 484 transitions. [2022-02-21 04:17:28,566 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 484 transitions. [2022-02-21 04:17:28,566 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:28,567 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:28,567 INFO L74 IsIncluded]: Start isIncluded. First operand has 381 states, 381 states have (on average 1.2703412073490814) internal successors, (484), 380 states have internal predecessors, (484), 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 381 states and 484 transitions. [2022-02-21 04:17:28,568 INFO L87 Difference]: Start difference. First operand has 381 states, 381 states have (on average 1.2703412073490814) internal successors, (484), 380 states have internal predecessors, (484), 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 381 states and 484 transitions. [2022-02-21 04:17:28,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:28,575 INFO L93 Difference]: Finished difference Result 381 states and 484 transitions. [2022-02-21 04:17:28,575 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 484 transitions. [2022-02-21 04:17:28,575 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:28,575 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:28,575 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:28,576 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:28,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 381 states have (on average 1.2703412073490814) internal successors, (484), 380 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:28,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 484 transitions. [2022-02-21 04:17:28,582 INFO L704 BuchiCegarLoop]: Abstraction has 381 states and 484 transitions. [2022-02-21 04:17:28,583 INFO L587 BuchiCegarLoop]: Abstraction has 381 states and 484 transitions. [2022-02-21 04:17:28,583 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:17:28,583 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 381 states and 484 transitions. [2022-02-21 04:17:28,584 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 267 [2022-02-21 04:17:28,584 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:28,584 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:28,585 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:28,585 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:28,585 INFO L791 eck$LassoCheckResult]: Stem: 3462#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 3423#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 3424#L176 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3428#L169 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 3318#L184 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 3282#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 3283#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3409#L464-2 [2022-02-21 04:17:28,586 INFO L793 eck$LassoCheckResult]: Loop: 3409#L464-2 assume !false; 3375#L465 assume test_~splverifierCounter~0#1 < 4; 3376#L466 test_~tmp~7#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 3463#L474 assume !(0 != test_~tmp~7#1); 3537#L474-2 test_~tmp___0~2#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 3536#L484 assume !(0 != test_~tmp___0~2#1); 3535#L484-2 test_~tmp___2~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 3443#L494 assume 0 != test_~tmp___2~0#1; 3445#L500-2 assume { :begin_inline_timeShift } true; 3239#L206 assume !(0 != ~pumpRunning~0); 3240#L206-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 3302#L290 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret7#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~2#1; 3372#L264-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret6#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 3395#L238-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1; 3396#L605-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~9#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; 3194#L610-3 isHighWaterLevel_#t~ret19#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret19#1;havoc isHighWaterLevel_#t~ret19#1; 3195#L409-9 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~0#1 := 0; 3390#L409-11 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 3214#L415-3 processEnvironment__wrappee__highWaterSensor_#t~ret6#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret6#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret6#1; 3215#L242-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3334#L230-6 assume { :end_inline_processEnvironment__wrappee__base } true; 3255#L238-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3317#L264-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 3338#L290-1 assume { :end_inline_processEnvironment } true; 3360#L213-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_#t~ret32#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 3545#L565-5 __utac_acc__Specification3_spec__1_#t~ret30#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret30#1;havoc __utac_acc__Specification3_spec__1_#t~ret30#1; 3241#L643 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 3242#L649-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3540#L223 assume { :end_inline_timeShift } true; 3409#L464-2 [2022-02-21 04:17:28,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:28,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:17:28,586 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:28,587 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019437467] [2022-02-21 04:17:28,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:28,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:28,595 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:28,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:28,603 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:28,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:28,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1645259349, now seen corresponding path program 1 times [2022-02-21 04:17:28,604 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:28,604 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636770677] [2022-02-21 04:17:28,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:28,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:28,625 INFO L290 TraceCheckUtils]: 0: Hoare triple {4335#true} assume !false; {4335#true} is VALID [2022-02-21 04:17:28,625 INFO L290 TraceCheckUtils]: 1: Hoare triple {4335#true} assume test_~splverifierCounter~0#1 < 4; {4335#true} is VALID [2022-02-21 04:17:28,625 INFO L290 TraceCheckUtils]: 2: Hoare triple {4335#true} test_~tmp~7#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; {4335#true} is VALID [2022-02-21 04:17:28,626 INFO L290 TraceCheckUtils]: 3: Hoare triple {4335#true} assume !(0 != test_~tmp~7#1); {4335#true} is VALID [2022-02-21 04:17:28,626 INFO L290 TraceCheckUtils]: 4: Hoare triple {4335#true} test_~tmp___0~2#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; {4335#true} is VALID [2022-02-21 04:17:28,626 INFO L290 TraceCheckUtils]: 5: Hoare triple {4335#true} assume !(0 != test_~tmp___0~2#1); {4335#true} is VALID [2022-02-21 04:17:28,626 INFO L290 TraceCheckUtils]: 6: Hoare triple {4335#true} test_~tmp___2~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; {4335#true} is VALID [2022-02-21 04:17:28,626 INFO L290 TraceCheckUtils]: 7: Hoare triple {4335#true} assume 0 != test_~tmp___2~0#1; {4335#true} is VALID [2022-02-21 04:17:28,626 INFO L290 TraceCheckUtils]: 8: Hoare triple {4335#true} assume { :begin_inline_timeShift } true; {4335#true} is VALID [2022-02-21 04:17:28,627 INFO L290 TraceCheckUtils]: 9: Hoare triple {4335#true} assume !(0 != ~pumpRunning~0); {4335#true} is VALID [2022-02-21 04:17:28,627 INFO L290 TraceCheckUtils]: 10: Hoare triple {4335#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; {4335#true} is VALID [2022-02-21 04:17:28,627 INFO L290 TraceCheckUtils]: 11: Hoare triple {4335#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret7#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~2#1; {4335#true} is VALID [2022-02-21 04:17:28,627 INFO L290 TraceCheckUtils]: 12: Hoare triple {4335#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret6#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; {4335#true} is VALID [2022-02-21 04:17:28,627 INFO L290 TraceCheckUtils]: 13: Hoare triple {4335#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1; {4335#true} is VALID [2022-02-21 04:17:28,628 INFO L290 TraceCheckUtils]: 14: Hoare triple {4335#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~9#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; {4337#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 0)} is VALID [2022-02-21 04:17:28,628 INFO L290 TraceCheckUtils]: 15: Hoare triple {4337#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 0)} isHighWaterLevel_#t~ret19#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret19#1;havoc isHighWaterLevel_#t~ret19#1; {4338#(= |ULTIMATE.start_isHighWaterLevel_~tmp~5#1| 0)} is VALID [2022-02-21 04:17:28,628 INFO L290 TraceCheckUtils]: 16: Hoare triple {4338#(= |ULTIMATE.start_isHighWaterLevel_~tmp~5#1| 0)} assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~0#1 := 0; {4336#false} is VALID [2022-02-21 04:17:28,628 INFO L290 TraceCheckUtils]: 17: Hoare triple {4336#false} isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; {4336#false} is VALID [2022-02-21 04:17:28,629 INFO L290 TraceCheckUtils]: 18: Hoare triple {4336#false} processEnvironment__wrappee__highWaterSensor_#t~ret6#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret6#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret6#1; {4336#false} is VALID [2022-02-21 04:17:28,629 INFO L290 TraceCheckUtils]: 19: Hoare triple {4336#false} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {4336#false} is VALID [2022-02-21 04:17:28,629 INFO L290 TraceCheckUtils]: 20: Hoare triple {4336#false} assume { :end_inline_processEnvironment__wrappee__base } true; {4336#false} is VALID [2022-02-21 04:17:28,629 INFO L290 TraceCheckUtils]: 21: Hoare triple {4336#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {4336#false} is VALID [2022-02-21 04:17:28,629 INFO L290 TraceCheckUtils]: 22: Hoare triple {4336#false} assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; {4336#false} is VALID [2022-02-21 04:17:28,629 INFO L290 TraceCheckUtils]: 23: Hoare triple {4336#false} assume { :end_inline_processEnvironment } true; {4336#false} is VALID [2022-02-21 04:17:28,629 INFO L290 TraceCheckUtils]: 24: Hoare triple {4336#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_#t~ret32#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; {4336#false} is VALID [2022-02-21 04:17:28,630 INFO L290 TraceCheckUtils]: 25: Hoare triple {4336#false} __utac_acc__Specification3_spec__1_#t~ret30#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret30#1;havoc __utac_acc__Specification3_spec__1_#t~ret30#1; {4336#false} is VALID [2022-02-21 04:17:28,630 INFO L290 TraceCheckUtils]: 26: Hoare triple {4336#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; {4336#false} is VALID [2022-02-21 04:17:28,630 INFO L290 TraceCheckUtils]: 27: Hoare triple {4336#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {4336#false} is VALID [2022-02-21 04:17:28,630 INFO L290 TraceCheckUtils]: 28: Hoare triple {4336#false} assume { :end_inline_timeShift } true; {4336#false} is VALID [2022-02-21 04:17:28,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:17:28,630 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:28,631 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636770677] [2022-02-21 04:17:28,631 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636770677] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:28,631 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:28,631 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:17:28,631 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758200817] [2022-02-21 04:17:28,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:28,631 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:28,632 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:28,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-21 04:17:28,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-21 04:17:28,632 INFO L87 Difference]: Start difference. First operand 381 states and 484 transitions. cyclomatic complexity: 106 Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:29,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:29,455 INFO L93 Difference]: Finished difference Result 1093 states and 1366 transitions. [2022-02-21 04:17:29,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:17:29,455 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:29,471 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:29,472 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1093 states and 1366 transitions. [2022-02-21 04:17:29,538 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 777 [2022-02-21 04:17:29,585 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1093 states to 1093 states and 1366 transitions. [2022-02-21 04:17:29,599 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1093 [2022-02-21 04:17:29,600 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1093 [2022-02-21 04:17:29,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1093 states and 1366 transitions. [2022-02-21 04:17:29,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:29,601 INFO L681 BuchiCegarLoop]: Abstraction has 1093 states and 1366 transitions. [2022-02-21 04:17:29,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states and 1366 transitions. [2022-02-21 04:17:29,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 399. [2022-02-21 04:17:29,610 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:29,611 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1093 states and 1366 transitions. Second operand has 399 states, 399 states have (on average 1.2581453634085213) internal successors, (502), 398 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:29,625 INFO L74 IsIncluded]: Start isIncluded. First operand 1093 states and 1366 transitions. Second operand has 399 states, 399 states have (on average 1.2581453634085213) internal successors, (502), 398 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:29,626 INFO L87 Difference]: Start difference. First operand 1093 states and 1366 transitions. Second operand has 399 states, 399 states have (on average 1.2581453634085213) internal successors, (502), 398 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:29,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:29,675 INFO L93 Difference]: Finished difference Result 1093 states and 1366 transitions. [2022-02-21 04:17:29,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 1366 transitions. [2022-02-21 04:17:29,677 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:29,691 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:29,692 INFO L74 IsIncluded]: Start isIncluded. First operand has 399 states, 399 states have (on average 1.2581453634085213) internal successors, (502), 398 states have internal predecessors, (502), 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 1093 states and 1366 transitions. [2022-02-21 04:17:29,692 INFO L87 Difference]: Start difference. First operand has 399 states, 399 states have (on average 1.2581453634085213) internal successors, (502), 398 states have internal predecessors, (502), 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 1093 states and 1366 transitions. [2022-02-21 04:17:29,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:29,751 INFO L93 Difference]: Finished difference Result 1093 states and 1366 transitions. [2022-02-21 04:17:29,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 1366 transitions. [2022-02-21 04:17:29,753 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:29,753 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:29,753 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:29,753 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:29,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 399 states have (on average 1.2581453634085213) internal successors, (502), 398 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:29,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 502 transitions. [2022-02-21 04:17:29,760 INFO L704 BuchiCegarLoop]: Abstraction has 399 states and 502 transitions. [2022-02-21 04:17:29,760 INFO L587 BuchiCegarLoop]: Abstraction has 399 states and 502 transitions. [2022-02-21 04:17:29,760 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:17:29,760 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 399 states and 502 transitions. [2022-02-21 04:17:29,761 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 279 [2022-02-21 04:17:29,761 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:29,761 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:29,762 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:29,762 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:29,762 INFO L791 eck$LassoCheckResult]: Stem: 5732#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 5680#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 5681#L176 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 5683#L169 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 5570#L184 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 5532#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 5533#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 5725#L464-2 [2022-02-21 04:17:29,765 INFO L793 eck$LassoCheckResult]: Loop: 5725#L464-2 assume !false; 5820#L465 assume test_~splverifierCounter~0#1 < 4; 5735#L466 test_~tmp~7#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 5526#L474 assume !(0 != test_~tmp~7#1); 5528#L474-2 test_~tmp___0~2#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 5617#L484 assume !(0 != test_~tmp___0~2#1); 5507#L484-2 test_~tmp___2~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 5508#L494 assume 0 != test_~tmp___2~0#1; 5708#L500-2 assume { :begin_inline_timeShift } true; 5487#L206 assume !(0 != ~pumpRunning~0); 5488#L206-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 5627#L290 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret7#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~2#1; 5628#L264-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret6#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 5653#L238-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1; 5654#L605-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; 5442#L610-3 isHighWaterLevel_#t~ret19#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret19#1;havoc isHighWaterLevel_#t~ret19#1; 5443#L409-9 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~0#1 := 0; 5648#L409-11 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 5460#L415-3 processEnvironment__wrappee__highWaterSensor_#t~ret6#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret6#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret6#1; 5461#L242-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 5588#L230-6 assume { :end_inline_processEnvironment__wrappee__base } true; 5504#L238-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 5567#L264-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 5591#L290-1 assume { :end_inline_processEnvironment } true; 5615#L213-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_#t~ret32#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 5822#L565-5 __utac_acc__Specification3_spec__1_#t~ret30#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret30#1;havoc __utac_acc__Specification3_spec__1_#t~ret30#1; 5489#L643 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 5490#L649-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 5821#L223 assume { :end_inline_timeShift } true; 5725#L464-2 [2022-02-21 04:17:29,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:29,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-02-21 04:17:29,775 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:29,775 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455293357] [2022-02-21 04:17:29,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:29,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:29,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:29,785 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:29,824 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:29,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:29,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1369844269, now seen corresponding path program 1 times [2022-02-21 04:17:29,826 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:29,826 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361473591] [2022-02-21 04:17:29,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:29,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:29,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:29,849 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:29,863 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:29,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:29,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1495578993, now seen corresponding path program 1 times [2022-02-21 04:17:29,865 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:29,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251683871] [2022-02-21 04:17:29,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:29,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:29,919 INFO L290 TraceCheckUtils]: 0: Hoare triple {8027#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,923 INFO L290 TraceCheckUtils]: 1: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,924 INFO L290 TraceCheckUtils]: 2: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,924 INFO L290 TraceCheckUtils]: 3: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,924 INFO L290 TraceCheckUtils]: 4: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,924 INFO L290 TraceCheckUtils]: 5: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,925 INFO L290 TraceCheckUtils]: 6: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,925 INFO L290 TraceCheckUtils]: 7: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} assume !false; {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,926 INFO L290 TraceCheckUtils]: 8: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} assume test_~splverifierCounter~0#1 < 4; {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,926 INFO L290 TraceCheckUtils]: 9: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} test_~tmp~7#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,928 INFO L290 TraceCheckUtils]: 10: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp~7#1); {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,928 INFO L290 TraceCheckUtils]: 11: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} test_~tmp___0~2#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,928 INFO L290 TraceCheckUtils]: 12: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___0~2#1); {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,929 INFO L290 TraceCheckUtils]: 13: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} test_~tmp___2~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,929 INFO L290 TraceCheckUtils]: 14: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} assume 0 != test_~tmp___2~0#1; {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,929 INFO L290 TraceCheckUtils]: 15: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} assume { :begin_inline_timeShift } true; {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,930 INFO L290 TraceCheckUtils]: 16: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0); {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,930 INFO L290 TraceCheckUtils]: 17: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,930 INFO L290 TraceCheckUtils]: 18: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret7#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~2#1; {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,931 INFO L290 TraceCheckUtils]: 19: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret6#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,931 INFO L290 TraceCheckUtils]: 20: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1; {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,931 INFO L290 TraceCheckUtils]: 21: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,932 INFO L290 TraceCheckUtils]: 22: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_#t~ret19#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret19#1;havoc isHighWaterLevel_#t~ret19#1; {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,932 INFO L290 TraceCheckUtils]: 23: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~0#1 := 0; {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,932 INFO L290 TraceCheckUtils]: 24: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,933 INFO L290 TraceCheckUtils]: 25: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} processEnvironment__wrappee__highWaterSensor_#t~ret6#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret6#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret6#1; {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,933 INFO L290 TraceCheckUtils]: 26: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,933 INFO L290 TraceCheckUtils]: 27: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__base } true; {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,934 INFO L290 TraceCheckUtils]: 28: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,934 INFO L290 TraceCheckUtils]: 29: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,934 INFO L290 TraceCheckUtils]: 30: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment } true; {8029#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:29,937 INFO L290 TraceCheckUtils]: 31: Hoare triple {8029#(= ~methaneLevelCritical~0 0)} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_#t~ret32#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; {8030#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} is VALID [2022-02-21 04:17:29,938 INFO L290 TraceCheckUtils]: 32: Hoare triple {8030#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} __utac_acc__Specification3_spec__1_#t~ret30#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret30#1;havoc __utac_acc__Specification3_spec__1_#t~ret30#1; {8031#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~8#1| 0)} is VALID [2022-02-21 04:17:29,938 INFO L290 TraceCheckUtils]: 33: Hoare triple {8031#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~8#1| 0)} assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; {8028#false} is VALID [2022-02-21 04:17:29,938 INFO L290 TraceCheckUtils]: 34: Hoare triple {8028#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {8028#false} is VALID [2022-02-21 04:17:29,938 INFO L290 TraceCheckUtils]: 35: Hoare triple {8028#false} assume { :end_inline_timeShift } true; {8028#false} is VALID [2022-02-21 04:17:29,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:17:29,939 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:29,939 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251683871] [2022-02-21 04:17:29,939 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251683871] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:29,939 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:29,939 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:17:29,940 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806666119] [2022-02-21 04:17:29,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:30,156 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:30,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:17:30,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:17:30,157 INFO L87 Difference]: Start difference. First operand 399 states and 502 transitions. cyclomatic complexity: 106 Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:31,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:31,321 INFO L93 Difference]: Finished difference Result 1370 states and 1713 transitions. [2022-02-21 04:17:31,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:17:31,322 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:31,339 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:31,339 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1370 states and 1713 transitions. [2022-02-21 04:17:31,441 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 1000 [2022-02-21 04:17:31,551 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1370 states to 1370 states and 1713 transitions. [2022-02-21 04:17:31,551 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1370 [2022-02-21 04:17:31,552 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1370 [2022-02-21 04:17:31,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1370 states and 1713 transitions. [2022-02-21 04:17:31,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:31,553 INFO L681 BuchiCegarLoop]: Abstraction has 1370 states and 1713 transitions. [2022-02-21 04:17:31,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1370 states and 1713 transitions. [2022-02-21 04:17:31,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1370 to 791. [2022-02-21 04:17:31,569 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:31,571 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1370 states and 1713 transitions. Second operand has 791 states, 791 states have (on average 1.245259165613148) internal successors, (985), 790 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:31,580 INFO L74 IsIncluded]: Start isIncluded. First operand 1370 states and 1713 transitions. Second operand has 791 states, 791 states have (on average 1.245259165613148) internal successors, (985), 790 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:31,581 INFO L87 Difference]: Start difference. First operand 1370 states and 1713 transitions. Second operand has 791 states, 791 states have (on average 1.245259165613148) internal successors, (985), 790 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:31,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:31,669 INFO L93 Difference]: Finished difference Result 1370 states and 1713 transitions. [2022-02-21 04:17:31,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 1713 transitions. [2022-02-21 04:17:31,672 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:31,678 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:31,681 INFO L74 IsIncluded]: Start isIncluded. First operand has 791 states, 791 states have (on average 1.245259165613148) internal successors, (985), 790 states have internal predecessors, (985), 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 1370 states and 1713 transitions. [2022-02-21 04:17:31,684 INFO L87 Difference]: Start difference. First operand has 791 states, 791 states have (on average 1.245259165613148) internal successors, (985), 790 states have internal predecessors, (985), 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 1370 states and 1713 transitions. [2022-02-21 04:17:31,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:31,729 INFO L93 Difference]: Finished difference Result 1370 states and 1713 transitions. [2022-02-21 04:17:31,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 1713 transitions. [2022-02-21 04:17:31,731 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:31,731 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:31,731 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:31,731 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:31,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 791 states, 791 states have (on average 1.245259165613148) internal successors, (985), 790 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:31,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 985 transitions. [2022-02-21 04:17:31,750 INFO L704 BuchiCegarLoop]: Abstraction has 791 states and 985 transitions. [2022-02-21 04:17:31,750 INFO L587 BuchiCegarLoop]: Abstraction has 791 states and 985 transitions. [2022-02-21 04:17:31,750 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2022-02-21 04:17:31,750 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 791 states and 985 transitions. [2022-02-21 04:17:31,752 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 558 [2022-02-21 04:17:31,752 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:31,752 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:31,754 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:31,754 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:31,754 INFO L791 eck$LassoCheckResult]: Stem: 9722#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 9661#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 9662#L176 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 9666#L169 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 9543#L184 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 9507#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 9508#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 9716#L464-2 [2022-02-21 04:17:31,754 INFO L793 eck$LassoCheckResult]: Loop: 9716#L464-2 assume !false; 10124#L465 assume test_~splverifierCounter~0#1 < 4; 10125#L466 test_~tmp~7#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 10185#L474 assume !(0 != test_~tmp~7#1); 9689#L474-2 test_~tmp___0~2#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 9594#L484 assume !(0 != test_~tmp___0~2#1); 9596#L484-2 test_~tmp___2~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 10189#L494 assume 0 != test_~tmp___2~0#1; 10187#L500-2 assume { :begin_inline_timeShift } true; 9463#L206 assume !(0 != ~pumpRunning~0); 9464#L206-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 9524#L290 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret7#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~2#1; 9823#L264-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret6#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 9822#L238-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1; 9821#L605-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; 9819#L610-3 isHighWaterLevel_#t~ret19#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret19#1;havoc isHighWaterLevel_#t~ret19#1; 9816#L409-9 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~0#1 := 0; 9815#L409-11 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 9814#L415-3 processEnvironment__wrappee__highWaterSensor_#t~ret6#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret6#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret6#1; 9667#L242-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 9560#L230-6 assume { :end_inline_processEnvironment__wrappee__base } true; 9479#L238-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 9540#L264-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 9563#L290-1 assume { :end_inline_processEnvironment } true; 9592#L213-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_#t~ret31#1, __utac_acc__Specification3_spec__1_#t~ret32#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 10133#L565-5 __utac_acc__Specification3_spec__1_#t~ret30#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret30#1;havoc __utac_acc__Specification3_spec__1_#t~ret30#1; 10132#L643 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; 10131#L597 __utac_acc__Specification3_spec__1_#t~ret31#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~3#1 := __utac_acc__Specification3_spec__1_#t~ret31#1;havoc __utac_acc__Specification3_spec__1_#t~ret31#1; 10129#L649 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3#1); 10127#L649-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 10126#L223 assume { :end_inline_timeShift } true; 9716#L464-2 [2022-02-21 04:17:31,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:31,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2022-02-21 04:17:31,764 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:31,765 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797896597] [2022-02-21 04:17:31,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:31,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:31,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:31,774 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:31,782 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:31,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:31,782 INFO L85 PathProgramCache]: Analyzing trace with hash 2135876550, now seen corresponding path program 1 times [2022-02-21 04:17:31,782 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:31,783 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402884765] [2022-02-21 04:17:31,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:31,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:31,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:31,788 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:31,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:31,792 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:31,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:31,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1563891074, now seen corresponding path program 1 times [2022-02-21 04:17:31,792 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:31,792 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980865121] [2022-02-21 04:17:31,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:31,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:31,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:31,800 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:31,809 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:33,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:17:33 BoogieIcfgContainer [2022-02-21 04:17:33,891 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:17:33,891 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:17:33,891 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:17:33,891 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:17:33,891 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:25" (3/4) ... [2022-02-21 04:17:33,893 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:17:33,943 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:17:33,944 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:17:33,945 INFO L158 Benchmark]: Toolchain (without parser) took 9838.81ms. Allocated memory was 90.2MB in the beginning and 163.6MB in the end (delta: 73.4MB). Free memory was 68.0MB in the beginning and 118.5MB in the end (delta: -50.4MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2022-02-21 04:17:33,945 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 69.2MB. Free memory was 39.8MB in the beginning and 39.7MB in the end (delta: 35.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:17:33,945 INFO L158 Benchmark]: CACSL2BoogieTranslator took 268.69ms. Allocated memory is still 90.2MB. Free memory was 67.8MB in the beginning and 45.6MB in the end (delta: 22.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-02-21 04:17:33,945 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.50ms. Allocated memory is still 90.2MB. Free memory was 45.5MB in the beginning and 66.7MB in the end (delta: -21.3MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2022-02-21 04:17:33,946 INFO L158 Benchmark]: Boogie Preprocessor took 34.00ms. Allocated memory is still 90.2MB. Free memory was 66.4MB in the beginning and 62.3MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:33,946 INFO L158 Benchmark]: RCFGBuilder took 833.52ms. Allocated memory is still 90.2MB. Free memory was 62.3MB in the beginning and 51.3MB in the end (delta: 11.0MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2022-02-21 04:17:33,946 INFO L158 Benchmark]: BuchiAutomizer took 8587.63ms. Allocated memory was 90.2MB in the beginning and 163.6MB in the end (delta: 73.4MB). Free memory was 51.3MB in the beginning and 120.5MB in the end (delta: -69.2MB). Peak memory consumption was 86.9MB. Max. memory is 16.1GB. [2022-02-21 04:17:33,946 INFO L158 Benchmark]: Witness Printer took 52.53ms. Allocated memory is still 163.6MB. Free memory was 120.5MB in the beginning and 118.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:33,947 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 69.2MB. Free memory was 39.8MB in the beginning and 39.7MB in the end (delta: 35.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 268.69ms. Allocated memory is still 90.2MB. Free memory was 67.8MB in the beginning and 45.6MB in the end (delta: 22.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.50ms. Allocated memory is still 90.2MB. Free memory was 45.5MB in the beginning and 66.7MB in the end (delta: -21.3MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.00ms. Allocated memory is still 90.2MB. Free memory was 66.4MB in the beginning and 62.3MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 833.52ms. Allocated memory is still 90.2MB. Free memory was 62.3MB in the beginning and 51.3MB in the end (delta: 11.0MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 8587.63ms. Allocated memory was 90.2MB in the beginning and 163.6MB in the end (delta: 73.4MB). Free memory was 51.3MB in the beginning and 120.5MB in the end (delta: -69.2MB). Peak memory consumption was 86.9MB. Max. memory is 16.1GB. * Witness Printer took 52.53ms. Allocated memory is still 163.6MB. Free memory was 120.5MB in the beginning and 118.5MB 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 791 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.5s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. Construction of modules took 0.3s. Büchi inclusion checks took 3.9s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 1583 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.4s Buchi closure took 0.0s. Biggest automaton had 791 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3899 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3899 mSDsluCounter, 6014 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4134 mSDsCounter, 130 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 338 IncrementalHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 130 mSolverCounterUnsat, 1880 mSDtfsCounter, 338 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 464]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, tmp=0, tmp___0=0, NULL=0, head=0, pumpRunning=0, tmp___0=0, retValue_acc=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5790197c=0, retValue_acc=1, methaneLevelCritical=0, retValue_acc=0, \result=0, retValue_acc=1, \result=1, retValue_acc=1, \result=1, tmp=0, tmp___0=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2807d934=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b79db28=0, tmp___2=29, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43fe0ce0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13a2c549=29, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ab983f9=0, tmp=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69d1fd58=0, tmp=0, head=0, retValue_acc=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b47117=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33f49c6b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4bc1772=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@370881b8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60748203=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 464]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L198] int pumpRunning = 0; [L199] int systemActive = 1; [L522] int waterLevel = 1; [L523] int methaneLevelCritical = 0; [L837] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L180] int retValue_acc ; [L183] retValue_acc = 1 [L184] return (retValue_acc); [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L455] int splverifierCounter ; [L456] int tmp ; [L457] int tmp___0 ; [L458] int tmp___1 ; [L459] int tmp___2 ; [L462] splverifierCounter = 0 Loop: [L464] COND TRUE 1 [L466] COND TRUE splverifierCounter < 4 [L472] tmp = __VERIFIER_nondet_int() [L474] COND FALSE !(\read(tmp)) [L482] tmp___0 = __VERIFIER_nondet_int() [L484] COND FALSE !(\read(tmp___0)) [L492] tmp___2 = __VERIFIER_nondet_int() [L494] COND TRUE \read(tmp___2) [L509] CALL timeShift() [L206] COND FALSE !(\read(pumpRunning)) [L213] COND TRUE \read(systemActive) [L215] CALL processEnvironment() [L287] int tmp ; [L290] COND FALSE !(\read(pumpRunning)) [L305] CALL processEnvironment__wrappee__methaneQuery() [L261] int tmp ; [L264] COND FALSE !(\read(pumpRunning)) [L279] CALL processEnvironment__wrappee__highWaterSensor() [L235] int tmp ; [L238] COND TRUE ! pumpRunning [L240] CALL, EXPR isHighWaterLevel() [L401] int retValue_acc ; [L402] int tmp ; [L403] int tmp___0 ; [L407] CALL, EXPR isHighWaterSensorDry() [L602] int retValue_acc ; [L605] COND TRUE waterLevel < 2 [L606] retValue_acc = 1 [L607] return (retValue_acc); [L407] RET, EXPR isHighWaterSensorDry() [L407] tmp = isHighWaterSensorDry() [L409] COND TRUE \read(tmp) [L410] tmp___0 = 0 [L414] retValue_acc = tmp___0 [L415] return (retValue_acc); [L240] RET, EXPR isHighWaterLevel() [L240] tmp = isHighWaterLevel() [L242] COND FALSE !(\read(tmp)) [L248] FCALL processEnvironment__wrappee__base() [L279] RET processEnvironment__wrappee__highWaterSensor() [L305] RET processEnvironment__wrappee__methaneQuery() [L215] RET processEnvironment() [L221] CALL __utac_acc__Specification3_spec__1() [L635] int tmp ; [L636] int tmp___0 ; [L637] int tmp___1 ; [L641] CALL, EXPR isMethaneLevelCritical() [L561] int retValue_acc ; [L564] retValue_acc = methaneLevelCritical [L565] return (retValue_acc); [L641] RET, EXPR isMethaneLevelCritical() [L641] tmp = isMethaneLevelCritical() [L643] COND FALSE !(\read(tmp)) [L647] CALL, EXPR getWaterLevel() [L593] int retValue_acc ; [L596] retValue_acc = waterLevel [L597] return (retValue_acc); [L647] RET, EXPR getWaterLevel() [L647] tmp___0 = getWaterLevel() [L649] COND FALSE !(tmp___0 == 2) [L221] RET __utac_acc__Specification3_spec__1() [L509] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:17:33,991 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)