./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product32.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product32.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 af36d03ba4a1f12ddb625aab4b3f9906d028707aefb4e7150e31be2b1be8c075 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:38,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:38,015 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:38,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:38,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:38,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:38,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:38,056 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:38,057 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:38,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:38,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:38,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:38,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:38,064 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:38,065 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:38,067 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:38,068 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:38,069 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:38,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:38,074 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:38,075 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:38,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:38,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:38,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:38,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:38,087 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:38,087 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:38,089 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:38,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:38,090 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:38,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:38,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:38,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:38,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:38,095 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:38,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:38,095 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:38,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:38,096 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:38,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:38,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:38,098 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:38,125 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:38,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:38,126 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:38,126 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:38,127 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:38,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:38,128 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:38,128 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:38,128 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:38,130 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:38,131 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:38,131 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:38,131 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:38,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:38,132 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:38,132 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:38,132 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:38,132 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:38,132 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:38,132 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:38,132 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:38,132 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:38,133 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:38,133 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:38,133 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:38,133 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:38,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:38,134 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:38,135 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:38,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:38,135 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:38,136 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:38,136 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af36d03ba4a1f12ddb625aab4b3f9906d028707aefb4e7150e31be2b1be8c075 [2022-02-21 04:18:38,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:38,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:38,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:38,322 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:38,322 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:38,323 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product32.cil.c [2022-02-21 04:18:38,370 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f882928ee/14c4c4a3a988458eb1b5a5220118d9b2/FLAG864af03c1 [2022-02-21 04:18:38,713 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:38,714 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product32.cil.c [2022-02-21 04:18:38,734 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f882928ee/14c4c4a3a988458eb1b5a5220118d9b2/FLAG864af03c1 [2022-02-21 04:18:39,130 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f882928ee/14c4c4a3a988458eb1b5a5220118d9b2 [2022-02-21 04:18:39,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:39,135 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:39,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:39,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:39,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:39,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:39" (1/1) ... [2022-02-21 04:18:39,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64e78832 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:39, skipping insertion in model container [2022-02-21 04:18:39,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:39" (1/1) ... [2022-02-21 04:18:39,167 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:39,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:39,484 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product32.cil.c[3438,3451] [2022-02-21 04:18:39,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:39,672 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:39,713 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product32.cil.c[3438,3451] [2022-02-21 04:18:39,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:39,819 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:39,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:39 WrapperNode [2022-02-21 04:18:39,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:39,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:39,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:39,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:39,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:39" (1/1) ... [2022-02-21 04:18:39,844 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:39" (1/1) ... [2022-02-21 04:18:39,880 INFO L137 Inliner]: procedures = 58, calls = 161, calls flagged for inlining = 58, calls inlined = 87, statements flattened = 607 [2022-02-21 04:18:39,882 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:39,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:39,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:39,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:39,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:39" (1/1) ... [2022-02-21 04:18:39,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:39" (1/1) ... [2022-02-21 04:18:39,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:39" (1/1) ... [2022-02-21 04:18:39,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:39" (1/1) ... [2022-02-21 04:18:39,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:39" (1/1) ... [2022-02-21 04:18:39,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:39" (1/1) ... [2022-02-21 04:18:39,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:39" (1/1) ... [2022-02-21 04:18:39,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:39,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:39,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:39,911 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:39,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:39" (1/1) ... [2022-02-21 04:18:39,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:39,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:39,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:18:39,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:18:40,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:40,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:40,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:40,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:40,065 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:40,067 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:40,483 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:40,497 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:40,497 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:40,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:40 BoogieIcfgContainer [2022-02-21 04:18:40,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:40,500 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:40,500 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:40,502 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:40,503 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:40,503 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:39" (1/3) ... [2022-02-21 04:18:40,504 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1fd91e9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:40, skipping insertion in model container [2022-02-21 04:18:40,504 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:40,505 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:39" (2/3) ... [2022-02-21 04:18:40,505 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1fd91e9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:40, skipping insertion in model container [2022-02-21 04:18:40,505 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:40,505 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:40" (3/3) ... [2022-02-21 04:18:40,506 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product32.cil.c [2022-02-21 04:18:40,546 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:40,546 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:40,546 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:40,547 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:40,547 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:40,547 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:40,547 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:40,547 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:40,569 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 165 states, 164 states have (on average 1.3414634146341464) internal successors, (220), 164 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:40,615 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 107 [2022-02-21 04:18:40,616 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:40,616 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:40,620 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:40,620 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:40,620 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:40,624 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 165 states, 164 states have (on average 1.3414634146341464) internal successors, (220), 164 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:40,645 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 107 [2022-02-21 04:18:40,646 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:40,646 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:40,647 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:40,647 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:40,654 INFO L791 eck$LassoCheckResult]: Stem: 143#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 41#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 72#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 153#L68true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 22#L83true main_#t~ret5#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1; 60#L177true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 96#L151true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 30#L508true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 121#L442-2true [2022-02-21 04:18:40,654 INFO L793 eck$LassoCheckResult]: Loop: 121#L442-2true assume !false; 71#L443true assume test_~splverifierCounter~0#1 < 4; 118#L444true test_~tmp~5#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 89#L452true assume !(0 != test_~tmp~5#1); 59#L452-2true test_~tmp___0~1#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 93#L462true assume !(0 != test_~tmp___0~1#1); 16#L462-2true test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 36#L472true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 132#L428true assume { :end_inline_startSystem } true; 54#L480-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret23#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; 104#L349true __utac_acc__Specification5_spec__2_#t~ret23#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret23#1;havoc __utac_acc__Specification5_spec__2_#t~ret23#1; 10#L518true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 100#L221true assume !(0 != ~pumpRunning~0); 73#L221-2true assume !(0 != ~systemActive~0); 66#L228-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_#t~ret25#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 78#L992true __utac_acc__Specification5_spec__3_#t~ret24#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret24#1;havoc __utac_acc__Specification5_spec__3_#t~ret24#1; 110#L529true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); 164#L529-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 27#L238true assume { :end_inline_timeShift } true; 121#L442-2true [2022-02-21 04:18:40,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:40,662 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:18:40,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:40,671 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514753093] [2022-02-21 04:18:40,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:40,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:40,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:40,795 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:40,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:40,836 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:40,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:40,839 INFO L85 PathProgramCache]: Analyzing trace with hash -664512405, now seen corresponding path program 1 times [2022-02-21 04:18:40,840 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:40,841 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12458639] [2022-02-21 04:18:40,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:40,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:40,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:40,946 INFO L290 TraceCheckUtils]: 0: Hoare triple {171#true} assume !false; {171#true} is VALID [2022-02-21 04:18:40,946 INFO L290 TraceCheckUtils]: 1: Hoare triple {171#true} assume test_~splverifierCounter~0#1 < 4; {171#true} is VALID [2022-02-21 04:18:40,947 INFO L290 TraceCheckUtils]: 2: Hoare triple {171#true} test_~tmp~5#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {171#true} is VALID [2022-02-21 04:18:40,947 INFO L290 TraceCheckUtils]: 3: Hoare triple {171#true} assume !(0 != test_~tmp~5#1); {171#true} is VALID [2022-02-21 04:18:40,947 INFO L290 TraceCheckUtils]: 4: Hoare triple {171#true} test_~tmp___0~1#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; {171#true} is VALID [2022-02-21 04:18:40,947 INFO L290 TraceCheckUtils]: 5: Hoare triple {171#true} assume !(0 != test_~tmp___0~1#1); {171#true} is VALID [2022-02-21 04:18:40,947 INFO L290 TraceCheckUtils]: 6: Hoare triple {171#true} test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; {171#true} is VALID [2022-02-21 04:18:40,948 INFO L290 TraceCheckUtils]: 7: Hoare triple {171#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {173#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:40,949 INFO L290 TraceCheckUtils]: 8: Hoare triple {173#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {173#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:40,949 INFO L290 TraceCheckUtils]: 9: Hoare triple {173#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret23#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; {173#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:40,950 INFO L290 TraceCheckUtils]: 10: Hoare triple {173#(<= 1 ~systemActive~0)} __utac_acc__Specification5_spec__2_#t~ret23#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret23#1;havoc __utac_acc__Specification5_spec__2_#t~ret23#1; {173#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:40,950 INFO L290 TraceCheckUtils]: 11: Hoare triple {173#(<= 1 ~systemActive~0)} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {173#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:40,951 INFO L290 TraceCheckUtils]: 12: Hoare triple {173#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {173#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:40,951 INFO L290 TraceCheckUtils]: 13: Hoare triple {173#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {172#false} is VALID [2022-02-21 04:18:40,951 INFO L290 TraceCheckUtils]: 14: Hoare triple {172#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_#t~ret25#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; {172#false} is VALID [2022-02-21 04:18:40,952 INFO L290 TraceCheckUtils]: 15: Hoare triple {172#false} __utac_acc__Specification5_spec__3_#t~ret24#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret24#1;havoc __utac_acc__Specification5_spec__3_#t~ret24#1; {172#false} is VALID [2022-02-21 04:18:40,952 INFO L290 TraceCheckUtils]: 16: Hoare triple {172#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); {172#false} is VALID [2022-02-21 04:18:40,952 INFO L290 TraceCheckUtils]: 17: Hoare triple {172#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {172#false} is VALID [2022-02-21 04:18:40,952 INFO L290 TraceCheckUtils]: 18: Hoare triple {172#false} assume { :end_inline_timeShift } true; {172#false} is VALID [2022-02-21 04:18:40,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:40,954 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:40,954 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12458639] [2022-02-21 04:18:40,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12458639] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:40,955 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:40,955 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:40,956 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436470917] [2022-02-21 04:18:40,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:40,960 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:40,961 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:40,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:41,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:41,026 INFO L87 Difference]: Start difference. First operand has 165 states, 164 states have (on average 1.3414634146341464) internal successors, (220), 164 states have internal predecessors, (220), 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 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:41,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:41,416 INFO L93 Difference]: Finished difference Result 314 states and 406 transitions. [2022-02-21 04:18:41,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:41,417 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:41,435 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:41,451 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 314 states and 406 transitions. [2022-02-21 04:18:41,477 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 204 [2022-02-21 04:18:41,491 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 314 states to 294 states and 385 transitions. [2022-02-21 04:18:41,492 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 294 [2022-02-21 04:18:41,493 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 294 [2022-02-21 04:18:41,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 294 states and 385 transitions. [2022-02-21 04:18:41,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:41,511 INFO L681 BuchiCegarLoop]: Abstraction has 294 states and 385 transitions. [2022-02-21 04:18:41,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states and 385 transitions. [2022-02-21 04:18:41,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 291. [2022-02-21 04:18:41,555 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:41,563 INFO L82 GeneralOperation]: Start isEquivalent. First operand 294 states and 385 transitions. Second operand has 291 states, 291 states have (on average 1.309278350515464) internal successors, (381), 290 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:41,564 INFO L74 IsIncluded]: Start isIncluded. First operand 294 states and 385 transitions. Second operand has 291 states, 291 states have (on average 1.309278350515464) internal successors, (381), 290 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:41,581 INFO L87 Difference]: Start difference. First operand 294 states and 385 transitions. Second operand has 291 states, 291 states have (on average 1.309278350515464) internal successors, (381), 290 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:41,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:41,597 INFO L93 Difference]: Finished difference Result 294 states and 385 transitions. [2022-02-21 04:18:41,598 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 385 transitions. [2022-02-21 04:18:41,605 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:41,607 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:41,608 INFO L74 IsIncluded]: Start isIncluded. First operand has 291 states, 291 states have (on average 1.309278350515464) internal successors, (381), 290 states have internal predecessors, (381), 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 294 states and 385 transitions. [2022-02-21 04:18:41,609 INFO L87 Difference]: Start difference. First operand has 291 states, 291 states have (on average 1.309278350515464) internal successors, (381), 290 states have internal predecessors, (381), 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 294 states and 385 transitions. [2022-02-21 04:18:41,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:41,630 INFO L93 Difference]: Finished difference Result 294 states and 385 transitions. [2022-02-21 04:18:41,631 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 385 transitions. [2022-02-21 04:18:41,632 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:41,632 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:41,632 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:41,636 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:41,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 291 states have (on average 1.309278350515464) internal successors, (381), 290 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:41,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 381 transitions. [2022-02-21 04:18:41,665 INFO L704 BuchiCegarLoop]: Abstraction has 291 states and 381 transitions. [2022-02-21 04:18:41,665 INFO L587 BuchiCegarLoop]: Abstraction has 291 states and 381 transitions. [2022-02-21 04:18:41,665 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:41,665 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 291 states and 381 transitions. [2022-02-21 04:18:41,667 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 201 [2022-02-21 04:18:41,667 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:41,668 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:41,668 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:41,668 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:41,669 INFO L791 eck$LassoCheckResult]: Stem: 650#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 561#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 562#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 601#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 525#L83 main_#t~ret5#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1; 526#L177 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 584#L151 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 539#L508 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 540#L442-2 [2022-02-21 04:18:41,669 INFO L793 eck$LassoCheckResult]: Loop: 540#L442-2 assume !false; 669#L443 assume test_~splverifierCounter~0#1 < 4; 634#L444 test_~tmp~5#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 614#L452 assume !(0 != test_~tmp~5#1); 567#L452-2 test_~tmp___0~1#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 583#L462 assume !(0 != test_~tmp___0~1#1); 513#L462-2 test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 514#L472 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 552#L428 assume { :end_inline_startSystem } true; 641#L480-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret23#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; 701#L349 __utac_acc__Specification5_spec__2_#t~ret23#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret23#1;havoc __utac_acc__Specification5_spec__2_#t~ret23#1; 700#L518 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 698#L221 assume !(0 != ~pumpRunning~0); 695#L221-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 588#L279 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 589#L253-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 684#L245-3 assume { :end_inline_processEnvironment__wrappee__base } true; 648#L253-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 507#L279-1 assume { :end_inline_processEnvironment } true; 675#L228-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_#t~ret25#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 674#L992 __utac_acc__Specification5_spec__3_#t~ret24#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret24#1;havoc __utac_acc__Specification5_spec__3_#t~ret24#1; 673#L529 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); 671#L529-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 670#L238 assume { :end_inline_timeShift } true; 540#L442-2 [2022-02-21 04:18:41,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:41,671 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:18:41,671 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:41,671 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571990668] [2022-02-21 04:18:41,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:41,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:41,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:41,724 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:41,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:41,772 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:41,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:41,773 INFO L85 PathProgramCache]: Analyzing trace with hash -818157738, now seen corresponding path program 1 times [2022-02-21 04:18:41,773 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:41,773 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344356702] [2022-02-21 04:18:41,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:41,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:41,785 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:41,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:41,794 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:41,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:41,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1054302401, now seen corresponding path program 1 times [2022-02-21 04:18:41,798 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:41,799 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876671668] [2022-02-21 04:18:41,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:41,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:41,931 INFO L290 TraceCheckUtils]: 0: Hoare triple {1374#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {1376#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,931 INFO L290 TraceCheckUtils]: 1: Hoare triple {1376#(= ~waterLevel~0 1)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; {1376#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,932 INFO L290 TraceCheckUtils]: 2: Hoare triple {1376#(= ~waterLevel~0 1)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {1376#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,932 INFO L290 TraceCheckUtils]: 3: Hoare triple {1376#(= ~waterLevel~0 1)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; {1376#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,932 INFO L290 TraceCheckUtils]: 4: Hoare triple {1376#(= ~waterLevel~0 1)} main_#t~ret5#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1; {1376#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,933 INFO L290 TraceCheckUtils]: 5: Hoare triple {1376#(= ~waterLevel~0 1)} assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; {1376#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,933 INFO L290 TraceCheckUtils]: 6: Hoare triple {1376#(= ~waterLevel~0 1)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; {1376#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,934 INFO L290 TraceCheckUtils]: 7: Hoare triple {1376#(= ~waterLevel~0 1)} assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {1376#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,946 INFO L290 TraceCheckUtils]: 8: Hoare triple {1376#(= ~waterLevel~0 1)} assume !false; {1376#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,947 INFO L290 TraceCheckUtils]: 9: Hoare triple {1376#(= ~waterLevel~0 1)} assume test_~splverifierCounter~0#1 < 4; {1376#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,948 INFO L290 TraceCheckUtils]: 10: Hoare triple {1376#(= ~waterLevel~0 1)} test_~tmp~5#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {1376#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,948 INFO L290 TraceCheckUtils]: 11: Hoare triple {1376#(= ~waterLevel~0 1)} assume !(0 != test_~tmp~5#1); {1376#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,949 INFO L290 TraceCheckUtils]: 12: Hoare triple {1376#(= ~waterLevel~0 1)} test_~tmp___0~1#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; {1376#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,949 INFO L290 TraceCheckUtils]: 13: Hoare triple {1376#(= ~waterLevel~0 1)} assume !(0 != test_~tmp___0~1#1); {1376#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,949 INFO L290 TraceCheckUtils]: 14: Hoare triple {1376#(= ~waterLevel~0 1)} test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; {1376#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,950 INFO L290 TraceCheckUtils]: 15: Hoare triple {1376#(= ~waterLevel~0 1)} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {1376#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,950 INFO L290 TraceCheckUtils]: 16: Hoare triple {1376#(= ~waterLevel~0 1)} assume { :end_inline_startSystem } true; {1376#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,951 INFO L290 TraceCheckUtils]: 17: Hoare triple {1376#(= ~waterLevel~0 1)} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret23#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; {1376#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,951 INFO L290 TraceCheckUtils]: 18: Hoare triple {1376#(= ~waterLevel~0 1)} __utac_acc__Specification5_spec__2_#t~ret23#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret23#1;havoc __utac_acc__Specification5_spec__2_#t~ret23#1; {1376#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,951 INFO L290 TraceCheckUtils]: 19: Hoare triple {1376#(= ~waterLevel~0 1)} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {1376#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,952 INFO L290 TraceCheckUtils]: 20: Hoare triple {1376#(= ~waterLevel~0 1)} assume !(0 != ~pumpRunning~0); {1376#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,952 INFO L290 TraceCheckUtils]: 21: Hoare triple {1376#(= ~waterLevel~0 1)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {1376#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,953 INFO L290 TraceCheckUtils]: 22: Hoare triple {1376#(= ~waterLevel~0 1)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; {1376#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,953 INFO L290 TraceCheckUtils]: 23: Hoare triple {1376#(= ~waterLevel~0 1)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1376#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,953 INFO L290 TraceCheckUtils]: 24: Hoare triple {1376#(= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__base } true; {1376#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,954 INFO L290 TraceCheckUtils]: 25: Hoare triple {1376#(= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; {1376#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,954 INFO L290 TraceCheckUtils]: 26: Hoare triple {1376#(= ~waterLevel~0 1)} assume { :end_inline_processEnvironment } true; {1376#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,955 INFO L290 TraceCheckUtils]: 27: Hoare triple {1376#(= ~waterLevel~0 1)} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_#t~ret25#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; {1377#(= |ULTIMATE.start_getWaterLevel_#res#1| 1)} is VALID [2022-02-21 04:18:41,955 INFO L290 TraceCheckUtils]: 28: Hoare triple {1377#(= |ULTIMATE.start_getWaterLevel_#res#1| 1)} __utac_acc__Specification5_spec__3_#t~ret24#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret24#1;havoc __utac_acc__Specification5_spec__3_#t~ret24#1; {1378#(= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~6#1| 1)} is VALID [2022-02-21 04:18:41,956 INFO L290 TraceCheckUtils]: 29: Hoare triple {1378#(= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~6#1| 1)} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1); {1375#false} is VALID [2022-02-21 04:18:41,956 INFO L290 TraceCheckUtils]: 30: Hoare triple {1375#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {1375#false} is VALID [2022-02-21 04:18:41,956 INFO L290 TraceCheckUtils]: 31: Hoare triple {1375#false} assume { :end_inline_timeShift } true; {1375#false} is VALID [2022-02-21 04:18:41,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:41,957 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:41,957 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876671668] [2022-02-21 04:18:41,957 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876671668] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:41,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:41,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:18:41,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713798044] [2022-02-21 04:18:41,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:42,180 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:42,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:42,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:42,181 INFO L87 Difference]: Start difference. First operand 291 states and 381 transitions. cyclomatic complexity: 93 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:43,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:43,176 INFO L93 Difference]: Finished difference Result 887 states and 1152 transitions. [2022-02-21 04:18:43,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:43,177 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:43,207 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:43,208 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 887 states and 1152 transitions. [2022-02-21 04:18:43,238 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 390 [2022-02-21 04:18:43,267 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 887 states to 887 states and 1152 transitions. [2022-02-21 04:18:43,267 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 887 [2022-02-21 04:18:43,267 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 887 [2022-02-21 04:18:43,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 887 states and 1152 transitions. [2022-02-21 04:18:43,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:43,268 INFO L681 BuchiCegarLoop]: Abstraction has 887 states and 1152 transitions. [2022-02-21 04:18:43,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states and 1152 transitions. [2022-02-21 04:18:43,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 566. [2022-02-21 04:18:43,283 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:43,284 INFO L82 GeneralOperation]: Start isEquivalent. First operand 887 states and 1152 transitions. Second operand has 566 states, 566 states have (on average 1.2932862190812722) internal successors, (732), 565 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:43,284 INFO L74 IsIncluded]: Start isIncluded. First operand 887 states and 1152 transitions. Second operand has 566 states, 566 states have (on average 1.2932862190812722) internal successors, (732), 565 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:43,285 INFO L87 Difference]: Start difference. First operand 887 states and 1152 transitions. Second operand has 566 states, 566 states have (on average 1.2932862190812722) internal successors, (732), 565 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:43,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:43,315 INFO L93 Difference]: Finished difference Result 887 states and 1152 transitions. [2022-02-21 04:18:43,315 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1152 transitions. [2022-02-21 04:18:43,316 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:43,317 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:43,318 INFO L74 IsIncluded]: Start isIncluded. First operand has 566 states, 566 states have (on average 1.2932862190812722) internal successors, (732), 565 states have internal predecessors, (732), 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 887 states and 1152 transitions. [2022-02-21 04:18:43,319 INFO L87 Difference]: Start difference. First operand has 566 states, 566 states have (on average 1.2932862190812722) internal successors, (732), 565 states have internal predecessors, (732), 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 887 states and 1152 transitions. [2022-02-21 04:18:43,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:43,344 INFO L93 Difference]: Finished difference Result 887 states and 1152 transitions. [2022-02-21 04:18:43,344 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1152 transitions. [2022-02-21 04:18:43,345 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:43,345 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:43,345 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:43,345 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:43,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 566 states have (on average 1.2932862190812722) internal successors, (732), 565 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:43,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 732 transitions. [2022-02-21 04:18:43,358 INFO L704 BuchiCegarLoop]: Abstraction has 566 states and 732 transitions. [2022-02-21 04:18:43,358 INFO L587 BuchiCegarLoop]: Abstraction has 566 states and 732 transitions. [2022-02-21 04:18:43,358 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:43,358 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 566 states and 732 transitions. [2022-02-21 04:18:43,360 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 390 [2022-02-21 04:18:43,360 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:43,361 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:43,361 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:43,361 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] [2022-02-21 04:18:43,362 INFO L791 eck$LassoCheckResult]: Stem: 2460#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2344#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 2345#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2393#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 2309#L83 main_#t~ret5#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1; 2310#L177 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 2373#L151 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2323#L508 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2324#L442-2 [2022-02-21 04:18:43,362 INFO L793 eck$LassoCheckResult]: Loop: 2324#L442-2 assume !false; 2389#L443 assume test_~splverifierCounter~0#1 < 4; 2390#L444 test_~tmp~5#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 2409#L452 assume !(0 != test_~tmp~5#1); 2371#L452-2 test_~tmp___0~1#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 2372#L462 assume !(0 != test_~tmp___0~1#1); 2297#L462-2 test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 2298#L472 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 2336#L480 assume !(0 != test_~tmp___1~0#1); 2353#L480-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret23#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; 2367#L349 __utac_acc__Specification5_spec__2_#t~ret23#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret23#1;havoc __utac_acc__Specification5_spec__2_#t~ret23#1; 2284#L518 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2285#L221 assume !(0 != ~pumpRunning~0); 2422#L221-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 2563#L279 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 2561#L253-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 2556#L245-3 assume { :end_inline_processEnvironment__wrappee__base } true; 2528#L253-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2489#L279-1 assume { :end_inline_processEnvironment } true; 2490#L228-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_#t~ret25#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 2397#L992 __utac_acc__Specification5_spec__3_#t~ret24#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret24#1;havoc __utac_acc__Specification5_spec__3_#t~ret24#1; 2398#L529 assume 2 != __utac_acc__Specification5_spec__3_~tmp~6#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; 2431#L349-1 __utac_acc__Specification5_spec__3_#t~ret25#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret25#1;havoc __utac_acc__Specification5_spec__3_#t~ret25#1; 2593#L533 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1); 2591#L529-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2590#L238 assume { :end_inline_timeShift } true; 2324#L442-2 [2022-02-21 04:18:43,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:43,363 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:18:43,363 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:43,363 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19140181] [2022-02-21 04:18:43,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:43,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:43,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:43,393 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:43,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:43,400 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:43,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:43,401 INFO L85 PathProgramCache]: Analyzing trace with hash -140021021, now seen corresponding path program 1 times [2022-02-21 04:18:43,401 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:43,401 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135662790] [2022-02-21 04:18:43,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:43,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:43,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:43,405 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:43,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:43,409 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:43,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:43,424 INFO L85 PathProgramCache]: Analyzing trace with hash 558224524, now seen corresponding path program 1 times [2022-02-21 04:18:43,424 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:43,424 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262743891] [2022-02-21 04:18:43,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:43,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:43,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:43,433 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:43,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:43,456 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:46,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:46 BoogieIcfgContainer [2022-02-21 04:18:46,650 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:46,651 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:46,651 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:46,651 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:46,652 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:40" (3/4) ... [2022-02-21 04:18:46,658 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:46,734 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:46,735 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:46,736 INFO L158 Benchmark]: Toolchain (without parser) took 7600.76ms. Allocated memory was 73.4MB in the beginning and 161.5MB in the end (delta: 88.1MB). Free memory was 44.9MB in the beginning and 64.9MB in the end (delta: -20.0MB). Peak memory consumption was 70.8MB. Max. memory is 16.1GB. [2022-02-21 04:18:46,737 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 73.4MB. Free memory is still 46.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:46,737 INFO L158 Benchmark]: CACSL2BoogieTranslator took 672.87ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 44.6MB in the beginning and 65.4MB in the end (delta: -20.8MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2022-02-21 04:18:46,737 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.36ms. Allocated memory is still 88.1MB. Free memory was 65.4MB in the beginning and 61.4MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:46,738 INFO L158 Benchmark]: Boogie Preprocessor took 27.44ms. Allocated memory is still 88.1MB. Free memory was 61.4MB in the beginning and 58.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:46,738 INFO L158 Benchmark]: RCFGBuilder took 588.14ms. Allocated memory is still 88.1MB. Free memory was 58.5MB in the beginning and 59.6MB in the end (delta: -1.1MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2022-02-21 04:18:46,738 INFO L158 Benchmark]: BuchiAutomizer took 6150.18ms. Allocated memory was 88.1MB in the beginning and 161.5MB in the end (delta: 73.4MB). Free memory was 59.6MB in the beginning and 68.0MB in the end (delta: -8.4MB). Peak memory consumption was 68.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:46,738 INFO L158 Benchmark]: Witness Printer took 84.12ms. Allocated memory is still 161.5MB. Free memory was 68.0MB in the beginning and 64.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:46,752 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 73.4MB. Free memory is still 46.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 672.87ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 44.6MB in the beginning and 65.4MB in the end (delta: -20.8MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.36ms. Allocated memory is still 88.1MB. Free memory was 65.4MB in the beginning and 61.4MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.44ms. Allocated memory is still 88.1MB. Free memory was 61.4MB in the beginning and 58.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 588.14ms. Allocated memory is still 88.1MB. Free memory was 58.5MB in the beginning and 59.6MB in the end (delta: -1.1MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 6150.18ms. Allocated memory was 88.1MB in the beginning and 161.5MB in the end (delta: 73.4MB). Free memory was 59.6MB in the beginning and 68.0MB in the end (delta: -8.4MB). Peak memory consumption was 68.1MB. Max. memory is 16.1GB. * Witness Printer took 84.12ms. Allocated memory is still 161.5MB. Free memory was 68.0MB in the beginning and 64.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 566 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 4.0s. Construction of modules took 0.1s. Büchi inclusion checks took 1.3s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 324 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 566 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 969 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 969 mSDsluCounter, 1367 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 859 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 105 IncrementalHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 508 mSDtfsCounter, 105 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 442]: 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, NULL=0, head=0, tmp___0=0, pumpRunning=0, retValue_acc=0, NULL=1, retValue_acc=0, methaneLevelCritical=0, retValue_acc=1, retValue_acc=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1cdc270=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@135bd2c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@696a919d=0, tmp___2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5011d0ad=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15a0ba61=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e09118d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ac5fef6=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25004e0f=0, \result=0, tmp___0=0, tmp=0, head=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b4316f4=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f42b35=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 442]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L88] int cleanupTimeShifts = 4; [L209] int pumpRunning = 0; [L210] int systemActive = 1; [L502] int switchedOnBeforeTS ; [L720] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L917] int waterLevel = 1; [L918] int methaneLevelCritical = 0; [L168] int retValue_acc ; [L169] int tmp ; [L173] FCALL select_helpers() [L174] FCALL select_features() [L175] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L175] RET, EXPR valid_product() [L175] tmp = valid_product() [L177] COND TRUE \read(tmp) [L179] FCALL setup() [L180] CALL runTest() [L161] CALL __utac_acc__Specification5_spec__1() [L507] switchedOnBeforeTS = 0 [L161] RET __utac_acc__Specification5_spec__1() [L162] CALL test() [L433] int splverifierCounter ; [L434] int tmp ; [L435] int tmp___0 ; [L436] int tmp___1 ; [L437] int tmp___2 ; [L440] splverifierCounter = 0 Loop: [L442] COND TRUE 1 [L444] COND TRUE splverifierCounter < 4 [L450] tmp = __VERIFIER_nondet_int() [L452] COND FALSE !(\read(tmp)) [L460] tmp___0 = __VERIFIER_nondet_int() [L462] COND FALSE !(\read(tmp___0)) [L470] tmp___2 = __VERIFIER_nondet_int() [L472] COND FALSE !(\read(tmp___2)) [L478] tmp___1 = __VERIFIER_nondet_int() [L480] COND FALSE !(\read(tmp___1)) [L489] CALL timeShift() [L219] CALL __utac_acc__Specification5_spec__2() [L516] CALL, EXPR isPumpRunning() [L345] int retValue_acc ; [L348] retValue_acc = pumpRunning [L349] return (retValue_acc); [L516] RET, EXPR isPumpRunning() [L516] switchedOnBeforeTS = isPumpRunning() [L219] RET __utac_acc__Specification5_spec__2() [L221] COND FALSE !(\read(pumpRunning)) [L228] COND TRUE \read(systemActive) [L230] CALL processEnvironment() [L276] int tmp ; [L279] COND FALSE !(\read(pumpRunning)) [L294] CALL processEnvironment__wrappee__methaneQuery() [L250] int tmp ; [L253] COND FALSE !(\read(pumpRunning)) [L268] FCALL processEnvironment__wrappee__base() [L294] RET processEnvironment__wrappee__methaneQuery() [L230] RET processEnvironment() [L236] CALL __utac_acc__Specification5_spec__3() [L522] int tmp ; [L523] int tmp___0 ; [L527] CALL, EXPR getWaterLevel() [L988] int retValue_acc ; [L991] retValue_acc = waterLevel [L992] return (retValue_acc); [L527] RET, EXPR getWaterLevel() [L527] tmp = getWaterLevel() [L529] COND TRUE tmp != 2 [L531] CALL, EXPR isPumpRunning() [L345] int retValue_acc ; [L348] retValue_acc = pumpRunning [L349] return (retValue_acc); [L531] RET, EXPR isPumpRunning() [L531] tmp___0 = isPumpRunning() [L533] COND FALSE !(\read(tmp___0)) [L236] RET __utac_acc__Specification5_spec__3() [L489] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:46,807 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with 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)