./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product31.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_product31.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 929dace20230ddc06ca4ae48df9d26fbf35d81f20edb15688ea1cc72e971ff98 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:38,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:38,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:38,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:38,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:38,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:38,106 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:38,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:38,109 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:38,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:38,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:38,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:38,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:38,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:38,116 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:38,119 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:38,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:38,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:38,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:38,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:38,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:38,127 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:38,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:38,128 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:38,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:38,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:38,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:38,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:38,135 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:38,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:38,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:38,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:38,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:38,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:38,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:38,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:38,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:38,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:38,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:38,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:38,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:38,142 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:38,163 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:38,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:38,164 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:38,164 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:38,165 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:38,165 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:38,165 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:38,165 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:38,165 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:38,166 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:38,166 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:38,166 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:38,166 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:38,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:38,167 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:38,167 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:38,167 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:38,167 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:38,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:38,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:38,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:38,168 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:38,168 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:38,168 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:38,168 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:38,168 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:38,169 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:38,169 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:38,169 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:38,169 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:38,169 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:38,170 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:38,170 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 929dace20230ddc06ca4ae48df9d26fbf35d81f20edb15688ea1cc72e971ff98 [2022-02-21 04:18:38,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:38,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:38,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:38,403 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:38,404 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:38,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product31.cil.c [2022-02-21 04:18:38,476 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6c2a652f/c9670855b97544f1b79bac5cdf087c96/FLAGd00ee9ddc [2022-02-21 04:18:38,907 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:38,908 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product31.cil.c [2022-02-21 04:18:38,917 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6c2a652f/c9670855b97544f1b79bac5cdf087c96/FLAGd00ee9ddc [2022-02-21 04:18:38,929 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6c2a652f/c9670855b97544f1b79bac5cdf087c96 [2022-02-21 04:18:38,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:38,931 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:38,932 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:38,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:38,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:38,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:38" (1/1) ... [2022-02-21 04:18:38,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@337c90f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:38, skipping insertion in model container [2022-02-21 04:18:38,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:38" (1/1) ... [2022-02-21 04:18:38,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:38,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:39,081 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_product31.cil.c[1605,1618] [2022-02-21 04:18:39,165 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:39,173 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:39,182 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_product31.cil.c[1605,1618] [2022-02-21 04:18:39,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:39,236 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:39,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:39 WrapperNode [2022-02-21 04:18:39,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:39,238 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:39,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:39,238 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:39,243 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 04:18:39,252 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 04:18:39,301 INFO L137 Inliner]: procedures = 57, calls = 160, calls flagged for inlining = 57, calls inlined = 86, statements flattened = 604 [2022-02-21 04:18:39,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:39,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:39,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:39,306 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:39,312 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 04:18:39,313 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 04:18:39,324 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 04:18:39,324 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 04:18:39,334 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 04:18:39,347 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 04:18:39,350 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 04:18:39,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:39,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:39,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:39,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:39,356 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 04:18:39,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:39,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:39,453 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 04:18:39,471 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 04:18:39,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:39,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:39,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:39,580 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:39,581 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:39,968 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:39,973 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:39,973 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:39,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:39 BoogieIcfgContainer [2022-02-21 04:18:39,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:39,976 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:39,976 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:39,978 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:39,979 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:39,979 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:38" (1/3) ... [2022-02-21 04:18:39,979 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@750f37df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:39, skipping insertion in model container [2022-02-21 04:18:39,980 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:39,980 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 04:18:39,980 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@750f37df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:39, skipping insertion in model container [2022-02-21 04:18:39,980 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:39,980 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:39" (3/3) ... [2022-02-21 04:18:39,981 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product31.cil.c [2022-02-21 04:18:40,010 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:40,010 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:40,010 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:40,011 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:40,011 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:40,011 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:40,011 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:40,011 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:40,026 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 164 states, 163 states have (on average 1.343558282208589) internal successors, (219), 163 states have internal predecessors, (219), 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 04:18:40,057 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2022-02-21 04:18:40,057 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:40,057 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:40,062 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:40,062 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:40,062 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:40,064 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 164 states, 163 states have (on average 1.343558282208589) internal successors, (219), 163 states have internal predecessors, (219), 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 04:18:40,074 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2022-02-21 04:18:40,074 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:40,074 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:40,075 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:40,075 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:40,079 INFO L791 eck$LassoCheckResult]: Stem: 151#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 46#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~6#1, main_~tmp~5#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 7#L982true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 142#L975true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 115#L990true main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 47#L531true assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 83#L503true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 141#L917true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 132#L74-2true [2022-02-21 04:18:40,080 INFO L793 eck$LassoCheckResult]: Loop: 132#L74-2true assume !false; 77#L75true assume test_~splverifierCounter~0#1 < 4; 87#L76true test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 148#L84true assume !(0 != test_~tmp~0#1); 28#L84-2true test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 149#L94true assume !(0 != test_~tmp___0~0#1); 129#L94-2true test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 21#L104true assume 0 != test_~tmp___2~0#1; 49#L110-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 70#L279true __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 17#L927true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 106#L151true assume !(0 != ~pumpRunning~0); 23#L151-2true assume !(0 != ~systemActive~0); 111#L158-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 20#L430true __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 144#L938true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 78#L938-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 8#L168true assume { :end_inline_timeShift } true; 132#L74-2true [2022-02-21 04:18:40,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:40,085 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:18:40,091 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:40,091 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820891885] [2022-02-21 04:18:40,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:40,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:40,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:40,176 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:40,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:40,214 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:40,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:40,221 INFO L85 PathProgramCache]: Analyzing trace with hash 353148780, now seen corresponding path program 1 times [2022-02-21 04:18:40,221 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:40,222 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483110464] [2022-02-21 04:18:40,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:40,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:40,243 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:40,253 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:40,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:40,258 INFO L85 PathProgramCache]: Analyzing trace with hash -986203627, now seen corresponding path program 1 times [2022-02-21 04:18:40,259 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:40,259 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16806410] [2022-02-21 04:18:40,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:40,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:40,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:40,410 INFO L290 TraceCheckUtils]: 0: Hoare triple {172#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; {174#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:40,411 INFO L290 TraceCheckUtils]: 1: Hoare triple {174#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~6#1, main_~tmp~5#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; {174#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:40,411 INFO L290 TraceCheckUtils]: 2: Hoare triple {174#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {174#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:40,412 INFO L290 TraceCheckUtils]: 3: Hoare triple {174#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; {175#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:18:40,412 INFO L290 TraceCheckUtils]: 4: Hoare triple {175#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret26#1;havoc main_#t~ret26#1; {176#(= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0)} is VALID [2022-02-21 04:18:40,412 INFO L290 TraceCheckUtils]: 5: Hoare triple {176#(= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0)} assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:40,413 INFO L290 TraceCheckUtils]: 6: Hoare triple {177#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:40,413 INFO L290 TraceCheckUtils]: 7: Hoare triple {177#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:40,414 INFO L290 TraceCheckUtils]: 8: Hoare triple {177#(not (= 0 ~systemActive~0))} assume !false; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:40,415 INFO L290 TraceCheckUtils]: 9: Hoare triple {177#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:40,415 INFO L290 TraceCheckUtils]: 10: Hoare triple {177#(not (= 0 ~systemActive~0))} test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:40,416 INFO L290 TraceCheckUtils]: 11: Hoare triple {177#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~0#1); {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:40,416 INFO L290 TraceCheckUtils]: 12: Hoare triple {177#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:40,418 INFO L290 TraceCheckUtils]: 13: Hoare triple {177#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:40,419 INFO L290 TraceCheckUtils]: 14: Hoare triple {177#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:40,420 INFO L290 TraceCheckUtils]: 15: Hoare triple {177#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:40,420 INFO L290 TraceCheckUtils]: 16: Hoare triple {177#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:40,421 INFO L290 TraceCheckUtils]: 17: Hoare triple {177#(not (= 0 ~systemActive~0))} __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:40,421 INFO L290 TraceCheckUtils]: 18: Hoare triple {177#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:40,422 INFO L290 TraceCheckUtils]: 19: Hoare triple {177#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:40,423 INFO L290 TraceCheckUtils]: 20: Hoare triple {177#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {173#false} is VALID [2022-02-21 04:18:40,423 INFO L290 TraceCheckUtils]: 21: Hoare triple {173#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; {173#false} is VALID [2022-02-21 04:18:40,424 INFO L290 TraceCheckUtils]: 22: Hoare triple {173#false} __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; {173#false} is VALID [2022-02-21 04:18:40,424 INFO L290 TraceCheckUtils]: 23: Hoare triple {173#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); {173#false} is VALID [2022-02-21 04:18:40,425 INFO L290 TraceCheckUtils]: 24: Hoare triple {173#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {173#false} is VALID [2022-02-21 04:18:40,425 INFO L290 TraceCheckUtils]: 25: Hoare triple {173#false} assume { :end_inline_timeShift } true; {173#false} is VALID [2022-02-21 04:18:40,426 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 04:18:40,426 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:40,427 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16806410] [2022-02-21 04:18:40,427 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16806410] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:40,427 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:40,427 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:40,428 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387306354] [2022-02-21 04:18:40,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:40,566 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:40,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:18:40,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:18:40,592 INFO L87 Difference]: Start difference. First operand has 164 states, 163 states have (on average 1.343558282208589) internal successors, (219), 163 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:41,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:41,359 INFO L93 Difference]: Finished difference Result 387 states and 498 transitions. [2022-02-21 04:18:41,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:41,360 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:41,380 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:41,384 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 387 states and 498 transitions. [2022-02-21 04:18:41,412 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 249 [2022-02-21 04:18:41,426 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 387 states to 357 states and 468 transitions. [2022-02-21 04:18:41,427 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 357 [2022-02-21 04:18:41,427 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 357 [2022-02-21 04:18:41,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 357 states and 468 transitions. [2022-02-21 04:18:41,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:41,429 INFO L681 BuchiCegarLoop]: Abstraction has 357 states and 468 transitions. [2022-02-21 04:18:41,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states and 468 transitions. [2022-02-21 04:18:41,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 212. [2022-02-21 04:18:41,453 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:41,454 INFO L82 GeneralOperation]: Start isEquivalent. First operand 357 states and 468 transitions. Second operand has 212 states, 212 states have (on average 1.3113207547169812) internal successors, (278), 211 states have internal predecessors, (278), 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 04:18:41,455 INFO L74 IsIncluded]: Start isIncluded. First operand 357 states and 468 transitions. Second operand has 212 states, 212 states have (on average 1.3113207547169812) internal successors, (278), 211 states have internal predecessors, (278), 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 04:18:41,456 INFO L87 Difference]: Start difference. First operand 357 states and 468 transitions. Second operand has 212 states, 212 states have (on average 1.3113207547169812) internal successors, (278), 211 states have internal predecessors, (278), 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 04:18:41,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:41,465 INFO L93 Difference]: Finished difference Result 357 states and 468 transitions. [2022-02-21 04:18:41,465 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 468 transitions. [2022-02-21 04:18:41,467 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:41,467 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:41,468 INFO L74 IsIncluded]: Start isIncluded. First operand has 212 states, 212 states have (on average 1.3113207547169812) internal successors, (278), 211 states have internal predecessors, (278), 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 357 states and 468 transitions. [2022-02-21 04:18:41,468 INFO L87 Difference]: Start difference. First operand has 212 states, 212 states have (on average 1.3113207547169812) internal successors, (278), 211 states have internal predecessors, (278), 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 357 states and 468 transitions. [2022-02-21 04:18:41,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:41,476 INFO L93 Difference]: Finished difference Result 357 states and 468 transitions. [2022-02-21 04:18:41,476 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 468 transitions. [2022-02-21 04:18:41,478 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:41,478 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:41,478 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:41,478 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:41,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 212 states have (on average 1.3113207547169812) internal successors, (278), 211 states have internal predecessors, (278), 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 04:18:41,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 278 transitions. [2022-02-21 04:18:41,484 INFO L704 BuchiCegarLoop]: Abstraction has 212 states and 278 transitions. [2022-02-21 04:18:41,484 INFO L587 BuchiCegarLoop]: Abstraction has 212 states and 278 transitions. [2022-02-21 04:18:41,484 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:41,484 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 212 states and 278 transitions. [2022-02-21 04:18:41,486 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 148 [2022-02-21 04:18:41,486 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:41,486 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:41,487 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:41,487 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:41,487 INFO L791 eck$LassoCheckResult]: Stem: 720#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 653#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~6#1, main_~tmp~5#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 576#L982 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 577#L975 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 707#L990 main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 654#L531 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 655#L503 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 689#L917 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 579#L74-2 [2022-02-21 04:18:41,487 INFO L793 eck$LassoCheckResult]: Loop: 579#L74-2 assume !false; 682#L75 assume test_~splverifierCounter~0#1 < 4; 683#L76 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 691#L84 assume !(0 != test_~tmp~0#1); 617#L84-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 618#L94 assume !(0 != test_~tmp___0~0#1); 712#L94-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 605#L104 assume 0 != test_~tmp___2~0#1; 606#L110-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 658#L279 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 595#L927 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 596#L151 assume !(0 != ~pumpRunning~0); 610#L151-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 611#L209 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret8#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 646#L183-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 647#L175-3 assume { :end_inline_processEnvironment__wrappee__base } true; 583#L183-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 673#L209-1 assume { :end_inline_processEnvironment } true; 704#L158-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 603#L430 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 604#L938 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 684#L938-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 578#L168 assume { :end_inline_timeShift } true; 579#L74-2 [2022-02-21 04:18:41,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:41,488 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:18:41,488 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:41,488 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567204831] [2022-02-21 04:18:41,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:41,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:41,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:41,499 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:41,511 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:41,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:41,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1698675059, now seen corresponding path program 1 times [2022-02-21 04:18:41,512 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:41,512 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239442810] [2022-02-21 04:18:41,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:41,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:41,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:41,517 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:41,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:41,521 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:41,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:41,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1772625814, now seen corresponding path program 1 times [2022-02-21 04:18:41,522 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:41,522 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414503609] [2022-02-21 04:18:41,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:41,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:41,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:41,561 INFO L290 TraceCheckUtils]: 0: Hoare triple {1502#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,562 INFO L290 TraceCheckUtils]: 1: Hoare triple {1504#(= ~waterLevel~0 1)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~6#1, main_~tmp~5#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,562 INFO L290 TraceCheckUtils]: 2: Hoare triple {1504#(= ~waterLevel~0 1)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,563 INFO L290 TraceCheckUtils]: 3: Hoare triple {1504#(= ~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~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,563 INFO L290 TraceCheckUtils]: 4: Hoare triple {1504#(= ~waterLevel~0 1)} main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret26#1;havoc main_#t~ret26#1; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,564 INFO L290 TraceCheckUtils]: 5: Hoare triple {1504#(= ~waterLevel~0 1)} assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,564 INFO L290 TraceCheckUtils]: 6: Hoare triple {1504#(= ~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; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,564 INFO L290 TraceCheckUtils]: 7: Hoare triple {1504#(= ~waterLevel~0 1)} assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,565 INFO L290 TraceCheckUtils]: 8: Hoare triple {1504#(= ~waterLevel~0 1)} assume !false; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,565 INFO L290 TraceCheckUtils]: 9: Hoare triple {1504#(= ~waterLevel~0 1)} assume test_~splverifierCounter~0#1 < 4; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,565 INFO L290 TraceCheckUtils]: 10: Hoare triple {1504#(= ~waterLevel~0 1)} test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,566 INFO L290 TraceCheckUtils]: 11: Hoare triple {1504#(= ~waterLevel~0 1)} assume !(0 != test_~tmp~0#1); {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,566 INFO L290 TraceCheckUtils]: 12: Hoare triple {1504#(= ~waterLevel~0 1)} test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,566 INFO L290 TraceCheckUtils]: 13: Hoare triple {1504#(= ~waterLevel~0 1)} assume !(0 != test_~tmp___0~0#1); {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,567 INFO L290 TraceCheckUtils]: 14: Hoare triple {1504#(= ~waterLevel~0 1)} test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,567 INFO L290 TraceCheckUtils]: 15: Hoare triple {1504#(= ~waterLevel~0 1)} assume 0 != test_~tmp___2~0#1; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,567 INFO L290 TraceCheckUtils]: 16: Hoare triple {1504#(= ~waterLevel~0 1)} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,568 INFO L290 TraceCheckUtils]: 17: Hoare triple {1504#(= ~waterLevel~0 1)} __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,568 INFO L290 TraceCheckUtils]: 18: Hoare triple {1504#(= ~waterLevel~0 1)} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,569 INFO L290 TraceCheckUtils]: 19: Hoare triple {1504#(= ~waterLevel~0 1)} assume !(0 != ~pumpRunning~0); {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,569 INFO L290 TraceCheckUtils]: 20: Hoare triple {1504#(= ~waterLevel~0 1)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,569 INFO L290 TraceCheckUtils]: 21: Hoare triple {1504#(= ~waterLevel~0 1)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret8#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,570 INFO L290 TraceCheckUtils]: 22: Hoare triple {1504#(= ~waterLevel~0 1)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,570 INFO L290 TraceCheckUtils]: 23: Hoare triple {1504#(= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__base } true; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,570 INFO L290 TraceCheckUtils]: 24: Hoare triple {1504#(= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,571 INFO L290 TraceCheckUtils]: 25: Hoare triple {1504#(= ~waterLevel~0 1)} assume { :end_inline_processEnvironment } true; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:41,571 INFO L290 TraceCheckUtils]: 26: Hoare triple {1504#(= ~waterLevel~0 1)} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; {1505#(= |ULTIMATE.start_getWaterLevel_#res#1| 1)} is VALID [2022-02-21 04:18:41,572 INFO L290 TraceCheckUtils]: 27: Hoare triple {1505#(= |ULTIMATE.start_getWaterLevel_#res#1| 1)} __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; {1506#(= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~9#1| 1)} is VALID [2022-02-21 04:18:41,572 INFO L290 TraceCheckUtils]: 28: Hoare triple {1506#(= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~9#1| 1)} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); {1503#false} is VALID [2022-02-21 04:18:41,572 INFO L290 TraceCheckUtils]: 29: Hoare triple {1503#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {1503#false} is VALID [2022-02-21 04:18:41,572 INFO L290 TraceCheckUtils]: 30: Hoare triple {1503#false} assume { :end_inline_timeShift } true; {1503#false} is VALID [2022-02-21 04:18:41,573 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 04:18:41,573 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:41,573 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414503609] [2022-02-21 04:18:41,573 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414503609] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:41,573 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:41,573 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:18:41,574 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559338398] [2022-02-21 04:18:41,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:41,654 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:41,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:41,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:41,655 INFO L87 Difference]: Start difference. First operand 212 states and 278 transitions. cyclomatic complexity: 69 Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:42,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:42,334 INFO L93 Difference]: Finished difference Result 623 states and 808 transitions. [2022-02-21 04:18:42,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:42,335 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:42,355 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:42,355 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 623 states and 808 transitions. [2022-02-21 04:18:42,372 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 284 [2022-02-21 04:18:42,387 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 623 states to 623 states and 808 transitions. [2022-02-21 04:18:42,388 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 623 [2022-02-21 04:18:42,388 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 623 [2022-02-21 04:18:42,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 623 states and 808 transitions. [2022-02-21 04:18:42,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:42,390 INFO L681 BuchiCegarLoop]: Abstraction has 623 states and 808 transitions. [2022-02-21 04:18:42,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states and 808 transitions. [2022-02-21 04:18:42,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 408. [2022-02-21 04:18:42,399 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:42,400 INFO L82 GeneralOperation]: Start isEquivalent. First operand 623 states and 808 transitions. Second operand has 408 states, 408 states have (on average 1.2892156862745099) internal successors, (526), 407 states have internal predecessors, (526), 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 04:18:42,401 INFO L74 IsIncluded]: Start isIncluded. First operand 623 states and 808 transitions. Second operand has 408 states, 408 states have (on average 1.2892156862745099) internal successors, (526), 407 states have internal predecessors, (526), 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 04:18:42,401 INFO L87 Difference]: Start difference. First operand 623 states and 808 transitions. Second operand has 408 states, 408 states have (on average 1.2892156862745099) internal successors, (526), 407 states have internal predecessors, (526), 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 04:18:42,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:42,415 INFO L93 Difference]: Finished difference Result 623 states and 808 transitions. [2022-02-21 04:18:42,416 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 808 transitions. [2022-02-21 04:18:42,417 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:42,417 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:42,418 INFO L74 IsIncluded]: Start isIncluded. First operand has 408 states, 408 states have (on average 1.2892156862745099) internal successors, (526), 407 states have internal predecessors, (526), 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 623 states and 808 transitions. [2022-02-21 04:18:42,419 INFO L87 Difference]: Start difference. First operand has 408 states, 408 states have (on average 1.2892156862745099) internal successors, (526), 407 states have internal predecessors, (526), 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 623 states and 808 transitions. [2022-02-21 04:18:42,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:42,433 INFO L93 Difference]: Finished difference Result 623 states and 808 transitions. [2022-02-21 04:18:42,433 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 808 transitions. [2022-02-21 04:18:42,434 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:42,434 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:42,434 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:42,435 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:42,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 408 states have (on average 1.2892156862745099) internal successors, (526), 407 states have internal predecessors, (526), 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 04:18:42,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 526 transitions. [2022-02-21 04:18:42,443 INFO L704 BuchiCegarLoop]: Abstraction has 408 states and 526 transitions. [2022-02-21 04:18:42,443 INFO L587 BuchiCegarLoop]: Abstraction has 408 states and 526 transitions. [2022-02-21 04:18:42,443 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:42,443 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 408 states and 526 transitions. [2022-02-21 04:18:42,445 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 284 [2022-02-21 04:18:42,445 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:42,445 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:42,445 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:42,445 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] [2022-02-21 04:18:42,446 INFO L791 eck$LassoCheckResult]: Stem: 2313#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 2220#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~6#1, main_~tmp~5#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 2143#L982 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2144#L975 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 2285#L990 main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 2221#L531 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 2222#L503 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2263#L917 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2305#L74-2 [2022-02-21 04:18:42,446 INFO L793 eck$LassoCheckResult]: Loop: 2305#L74-2 assume !false; 2430#L75 assume test_~splverifierCounter~0#1 < 4; 2431#L76 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 2520#L84 assume !(0 != test_~tmp~0#1); 2519#L84-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 2517#L94 assume !(0 != test_~tmp___0~0#1); 2515#L94-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 2514#L104 assume 0 != test_~tmp___2~0#1; 2223#L110-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 2224#L279 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 2162#L927 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2163#L151 assume !(0 != ~pumpRunning~0); 2278#L151-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 2483#L209 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret8#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 2481#L183-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 2466#L175-3 assume { :end_inline_processEnvironment__wrappee__base } true; 2464#L183-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2461#L209-1 assume { :end_inline_processEnvironment } true; 2460#L158-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 2445#L430 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 2444#L938 assume 2 != __utac_acc__Specification5_spec__3_~tmp~9#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 2442#L279-1 __utac_acc__Specification5_spec__3_#t~ret52#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret52#1;havoc __utac_acc__Specification5_spec__3_#t~ret52#1; 2443#L942 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1); 2454#L938-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2434#L168 assume { :end_inline_timeShift } true; 2305#L74-2 [2022-02-21 04:18:42,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:42,446 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:18:42,447 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:42,447 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911909807] [2022-02-21 04:18:42,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:42,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:42,455 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:42,462 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:42,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:42,463 INFO L85 PathProgramCache]: Analyzing trace with hash 320062542, now seen corresponding path program 1 times [2022-02-21 04:18:42,463 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:42,463 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846413335] [2022-02-21 04:18:42,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:42,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:42,468 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:42,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:42,471 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:42,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:42,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1589512581, now seen corresponding path program 1 times [2022-02-21 04:18:42,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:42,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915364280] [2022-02-21 04:18:42,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:42,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:42,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:42,481 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:42,491 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:44,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:44 BoogieIcfgContainer [2022-02-21 04:18:44,922 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:44,922 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:44,922 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:44,923 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:44,923 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:39" (3/4) ... [2022-02-21 04:18:44,925 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:44,988 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:44,988 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:44,990 INFO L158 Benchmark]: Toolchain (without parser) took 6058.13ms. Allocated memory was 96.5MB in the beginning and 186.6MB in the end (delta: 90.2MB). Free memory was 64.7MB in the beginning and 85.7MB in the end (delta: -21.0MB). Peak memory consumption was 70.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:44,990 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 96.5MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:44,991 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.60ms. Allocated memory was 96.5MB in the beginning and 125.8MB in the end (delta: 29.4MB). Free memory was 64.5MB in the beginning and 88.6MB in the end (delta: -24.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:18:44,991 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.94ms. Allocated memory is still 125.8MB. Free memory was 88.6MB in the beginning and 84.5MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:44,991 INFO L158 Benchmark]: Boogie Preprocessor took 48.40ms. Allocated memory is still 125.8MB. Free memory was 84.5MB in the beginning and 82.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:44,992 INFO L158 Benchmark]: RCFGBuilder took 619.91ms. Allocated memory is still 125.8MB. Free memory was 82.0MB in the beginning and 100.4MB in the end (delta: -18.4MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:44,992 INFO L158 Benchmark]: BuchiAutomizer took 4946.11ms. Allocated memory was 125.8MB in the beginning and 186.6MB in the end (delta: 60.8MB). Free memory was 99.6MB in the beginning and 87.8MB in the end (delta: 11.8MB). Peak memory consumption was 94.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:44,992 INFO L158 Benchmark]: Witness Printer took 66.31ms. Allocated memory is still 186.6MB. Free memory was 87.8MB in the beginning and 85.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:44,993 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 0.11ms. Allocated memory is still 96.5MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.60ms. Allocated memory was 96.5MB in the beginning and 125.8MB in the end (delta: 29.4MB). Free memory was 64.5MB in the beginning and 88.6MB in the end (delta: -24.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.94ms. Allocated memory is still 125.8MB. Free memory was 88.6MB in the beginning and 84.5MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.40ms. Allocated memory is still 125.8MB. Free memory was 84.5MB in the beginning and 82.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 619.91ms. Allocated memory is still 125.8MB. Free memory was 82.0MB in the beginning and 100.4MB in the end (delta: -18.4MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 4946.11ms. Allocated memory was 125.8MB in the beginning and 186.6MB in the end (delta: 60.8MB). Free memory was 99.6MB in the beginning and 87.8MB in the end (delta: 11.8MB). Peak memory consumption was 94.2MB. Max. memory is 16.1GB. * Witness Printer took 66.31ms. Allocated memory is still 186.6MB. Free memory was 87.8MB in the beginning and 85.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 6 locations. The remainder module has 408 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.1s. Büchi inclusion checks took 1.4s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 360 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 408 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1731 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1731 mSDsluCounter, 2018 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1516 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 133 IncrementalHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 502 mSDtfsCounter, 133 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 74]: 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, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75f130f0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ce85976=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d4222cf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f45d295=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@740825dd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41a77300=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a0f7b65=29, methaneLevelCritical=0, retValue_acc=1, tmp=1, \result=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a489148=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1999f0dd=0, tmp___2=29, \result=0, tmp=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, tmp=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d180036=0, tmp___0=0, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, retValue_acc=1, waterLevel=1, systemActive=1} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 74]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L139] int pumpRunning = 0; [L140] int systemActive = 1; [L355] int waterLevel = 1; [L356] int methaneLevelCritical = 0; [L444] int cleanupTimeShifts = 4; [L714] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L911] int switchedOnBeforeTS ; [L522] int retValue_acc ; [L523] int tmp ; [L527] FCALL select_helpers() [L528] FCALL select_features() [L529] CALL, EXPR valid_product() [L986] int retValue_acc ; [L989] retValue_acc = 1 [L990] return (retValue_acc); [L529] RET, EXPR valid_product() [L529] tmp = valid_product() [L531] COND TRUE \read(tmp) [L533] FCALL setup() [L534] CALL runTest() [L512] CALL __utac_acc__Specification5_spec__1() [L916] switchedOnBeforeTS = 0 [L512] RET __utac_acc__Specification5_spec__1() [L513] CALL test() [L65] int splverifierCounter ; [L66] int tmp ; [L67] int tmp___0 ; [L68] int tmp___1 ; [L69] int tmp___2 ; [L72] splverifierCounter = 0 Loop: [L74] COND TRUE 1 [L76] COND TRUE splverifierCounter < 4 [L82] tmp = __VERIFIER_nondet_int() [L84] COND FALSE !(\read(tmp)) [L92] tmp___0 = __VERIFIER_nondet_int() [L94] COND FALSE !(\read(tmp___0)) [L102] tmp___2 = __VERIFIER_nondet_int() [L104] COND TRUE \read(tmp___2) [L119] CALL timeShift() [L149] CALL __utac_acc__Specification5_spec__2() [L925] CALL, EXPR isPumpRunning() [L275] int retValue_acc ; [L278] retValue_acc = pumpRunning [L279] return (retValue_acc); [L925] RET, EXPR isPumpRunning() [L925] switchedOnBeforeTS = isPumpRunning() [L149] RET __utac_acc__Specification5_spec__2() [L151] COND FALSE !(\read(pumpRunning)) [L158] COND TRUE \read(systemActive) [L160] CALL processEnvironment() [L206] int tmp ; [L209] COND FALSE !(\read(pumpRunning)) [L224] CALL processEnvironment__wrappee__methaneQuery() [L180] int tmp ; [L183] COND FALSE !(\read(pumpRunning)) [L198] FCALL processEnvironment__wrappee__base() [L224] RET processEnvironment__wrappee__methaneQuery() [L160] RET processEnvironment() [L166] CALL __utac_acc__Specification5_spec__3() [L931] int tmp ; [L932] int tmp___0 ; [L936] CALL, EXPR getWaterLevel() [L426] int retValue_acc ; [L429] retValue_acc = waterLevel [L430] return (retValue_acc); [L936] RET, EXPR getWaterLevel() [L936] tmp = getWaterLevel() [L938] COND TRUE tmp != 2 [L940] CALL, EXPR isPumpRunning() [L275] int retValue_acc ; [L278] retValue_acc = pumpRunning [L279] return (retValue_acc); [L940] RET, EXPR isPumpRunning() [L940] tmp___0 = isPumpRunning() [L942] COND FALSE !(\read(tmp___0)) [L166] RET __utac_acc__Specification5_spec__3() [L119] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:45,031 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)