./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product46.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_product46.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 73b8e020dd9d30fdd676c81009d4f1b850aa716d63ef29ce3d475a261546f853 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:48,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:48,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:48,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:48,106 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:48,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:48,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:48,115 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:48,117 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:48,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:48,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:48,123 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:48,123 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:48,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:48,127 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:48,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:48,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:48,129 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:48,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:48,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:48,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:48,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:48,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:48,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:48,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:48,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:48,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:48,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:48,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:48,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:48,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:48,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:48,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:48,149 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:48,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:48,150 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:48,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:48,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:48,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:48,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:48,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:48,153 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:48,177 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:48,177 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:48,178 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:48,178 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:48,179 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:48,179 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:48,179 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:48,180 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:48,195 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:48,195 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:48,195 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:48,195 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:48,195 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:48,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:48,196 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:48,196 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:48,196 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:48,196 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:48,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:48,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:48,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:48,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:48,196 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:48,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:48,197 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:48,197 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:48,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:48,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:48,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:48,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:48,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:48,198 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:48,198 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73b8e020dd9d30fdd676c81009d4f1b850aa716d63ef29ce3d475a261546f853 [2022-02-21 04:18:48,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:48,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:48,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:48,611 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:48,612 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:48,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product46.cil.c [2022-02-21 04:18:48,667 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ce60379a/87f4fa5718d94a3ba16b7a74054baf7d/FLAG071f3d24d [2022-02-21 04:18:49,075 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:49,075 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product46.cil.c [2022-02-21 04:18:49,083 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ce60379a/87f4fa5718d94a3ba16b7a74054baf7d/FLAG071f3d24d [2022-02-21 04:18:49,448 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ce60379a/87f4fa5718d94a3ba16b7a74054baf7d [2022-02-21 04:18:49,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:49,451 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:49,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:49,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:49,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:49,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:49" (1/1) ... [2022-02-21 04:18:49,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55e7a137 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:49, skipping insertion in model container [2022-02-21 04:18:49,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:49" (1/1) ... [2022-02-21 04:18:49,468 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:49,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:49,896 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_product46.cil.c[15211,15224] [2022-02-21 04:18:49,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:49,963 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:50,072 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_product46.cil.c[15211,15224] [2022-02-21 04:18:50,086 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:50,125 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:50,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:50 WrapperNode [2022-02-21 04:18:50,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:50,140 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:50,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:50,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:50,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:50" (1/1) ... [2022-02-21 04:18:50,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:50" (1/1) ... [2022-02-21 04:18:50,234 INFO L137 Inliner]: procedures = 57, calls = 159, calls flagged for inlining = 56, calls inlined = 103, statements flattened = 750 [2022-02-21 04:18:50,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:50,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:50,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:50,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:50,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:50" (1/1) ... [2022-02-21 04:18:50,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:50" (1/1) ... [2022-02-21 04:18:50,268 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:50" (1/1) ... [2022-02-21 04:18:50,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:50" (1/1) ... [2022-02-21 04:18:50,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:50" (1/1) ... [2022-02-21 04:18:50,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:50" (1/1) ... [2022-02-21 04:18:50,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:50" (1/1) ... [2022-02-21 04:18:50,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:50,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:50,328 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:50,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:50,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:50" (1/1) ... [2022-02-21 04:18:50,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:50,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:50,367 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 04:18:50,371 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 04:18:50,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:50,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:50,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:50,503 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:50,520 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:51,038 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:51,044 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:51,044 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:51,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:51 BoogieIcfgContainer [2022-02-21 04:18:51,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:51,047 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:51,047 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:51,049 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:51,049 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:51,049 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:49" (1/3) ... [2022-02-21 04:18:51,050 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29e05256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:51, skipping insertion in model container [2022-02-21 04:18:51,050 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:51,050 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:50" (2/3) ... [2022-02-21 04:18:51,051 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29e05256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:51, skipping insertion in model container [2022-02-21 04:18:51,051 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:51,051 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:51" (3/3) ... [2022-02-21 04:18:51,052 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product46.cil.c [2022-02-21 04:18:51,079 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:51,079 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:51,079 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:51,079 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:51,079 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:51,079 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:51,079 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:51,079 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:51,094 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 191 states, 190 states have (on average 1.3526315789473684) internal successors, (257), 190 states have internal predecessors, (257), 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 04:18:51,125 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2022-02-21 04:18:51,125 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:51,125 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:51,130 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:51,130 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:51,130 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:51,132 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 191 states, 190 states have (on average 1.3526315789473684) internal successors, (257), 190 states have internal predecessors, (257), 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 04:18:51,144 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2022-02-21 04:18:51,144 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:51,144 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:51,145 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:51,145 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:51,148 INFO L791 eck$LassoCheckResult]: Stem: 169#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 56#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret7#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 172#L693true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 95#L686true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 176#L701true main_#t~ret7#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1; 83#L193true assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 16#L165true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 145#L59true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 118#L934-2true [2022-02-21 04:18:51,149 INFO L793 eck$LassoCheckResult]: Loop: 118#L934-2true assume !false; 103#L935true assume test_~splverifierCounter~0#1 < 4; 51#L936true test_~tmp~9#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 7#L944true assume !(0 != test_~tmp~9#1); 151#L944-2true test_~tmp___0~2#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 186#L954true assume !(0 != test_~tmp___0~2#1); 127#L954-2true test_~tmp___2~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 109#L964true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 25#L972true assume 0 != test_~tmp___1~0#1; 178#L972-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 190#L856true __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 26#L69true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 91#L728true assume !(0 != ~pumpRunning~0); 31#L728-2true assume !(0 != ~systemActive~0); 93#L735-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 189#L652true __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 12#L80true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 164#L80-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 110#L745true assume { :end_inline_timeShift } true; 118#L934-2true [2022-02-21 04:18:51,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:51,152 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:18:51,158 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:51,159 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723378254] [2022-02-21 04:18:51,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:51,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:51,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:51,231 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:51,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:51,262 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:51,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:51,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1837543820, now seen corresponding path program 1 times [2022-02-21 04:18:51,265 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:51,265 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024595461] [2022-02-21 04:18:51,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:51,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:51,272 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:51,278 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:51,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:51,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1027675133, now seen corresponding path program 1 times [2022-02-21 04:18:51,279 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:51,280 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775188842] [2022-02-21 04:18:51,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:51,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:51,372 INFO L290 TraceCheckUtils]: 0: Hoare triple {199#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; {201#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:51,372 INFO L290 TraceCheckUtils]: 1: Hoare triple {201#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret7#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; {201#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:51,373 INFO L290 TraceCheckUtils]: 2: Hoare triple {201#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {201#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:51,373 INFO L290 TraceCheckUtils]: 3: Hoare triple {201#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; {202#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:18:51,374 INFO L290 TraceCheckUtils]: 4: Hoare triple {202#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret7#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1; {203#(= |ULTIMATE.start_main_~tmp~1#1| ~systemActive~0)} is VALID [2022-02-21 04:18:51,375 INFO L290 TraceCheckUtils]: 5: Hoare triple {203#(= |ULTIMATE.start_main_~tmp~1#1| ~systemActive~0)} assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:51,375 INFO L290 TraceCheckUtils]: 6: Hoare triple {204#(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; {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:51,376 INFO L290 TraceCheckUtils]: 7: Hoare triple {204#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:51,376 INFO L290 TraceCheckUtils]: 8: Hoare triple {204#(not (= 0 ~systemActive~0))} assume !false; {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:51,377 INFO L290 TraceCheckUtils]: 9: Hoare triple {204#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:51,377 INFO L290 TraceCheckUtils]: 10: Hoare triple {204#(not (= 0 ~systemActive~0))} test_~tmp~9#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:51,377 INFO L290 TraceCheckUtils]: 11: Hoare triple {204#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~9#1); {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:51,378 INFO L290 TraceCheckUtils]: 12: Hoare triple {204#(not (= 0 ~systemActive~0))} test_~tmp___0~2#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:51,378 INFO L290 TraceCheckUtils]: 13: Hoare triple {204#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~2#1); {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:51,379 INFO L290 TraceCheckUtils]: 14: Hoare triple {204#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:51,379 INFO L290 TraceCheckUtils]: 15: Hoare triple {204#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:51,379 INFO L290 TraceCheckUtils]: 16: Hoare triple {204#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___1~0#1; {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:51,380 INFO L290 TraceCheckUtils]: 17: Hoare triple {204#(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~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:51,380 INFO L290 TraceCheckUtils]: 18: Hoare triple {204#(not (= 0 ~systemActive~0))} __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:51,381 INFO L290 TraceCheckUtils]: 19: Hoare triple {204#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:51,381 INFO L290 TraceCheckUtils]: 20: Hoare triple {204#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {204#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:51,381 INFO L290 TraceCheckUtils]: 21: Hoare triple {204#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {200#false} is VALID [2022-02-21 04:18:51,382 INFO L290 TraceCheckUtils]: 22: Hoare triple {200#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; {200#false} is VALID [2022-02-21 04:18:51,382 INFO L290 TraceCheckUtils]: 23: Hoare triple {200#false} __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; {200#false} is VALID [2022-02-21 04:18:51,382 INFO L290 TraceCheckUtils]: 24: Hoare triple {200#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); {200#false} is VALID [2022-02-21 04:18:51,382 INFO L290 TraceCheckUtils]: 25: Hoare triple {200#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {200#false} is VALID [2022-02-21 04:18:51,382 INFO L290 TraceCheckUtils]: 26: Hoare triple {200#false} assume { :end_inline_timeShift } true; {200#false} is VALID [2022-02-21 04:18:51,383 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 04:18:51,383 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:51,383 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775188842] [2022-02-21 04:18:51,384 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775188842] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:51,384 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:51,384 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:51,384 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110777672] [2022-02-21 04:18:51,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:51,509 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:51,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:18:51,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:18:51,527 INFO L87 Difference]: Start difference. First operand has 191 states, 190 states have (on average 1.3526315789473684) internal successors, (257), 190 states have internal predecessors, (257), 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 4.5) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:51,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:51,837 INFO L93 Difference]: Finished difference Result 188 states and 243 transitions. [2022-02-21 04:18:51,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:18:51,838 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:51,858 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:51,862 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 188 states and 243 transitions. [2022-02-21 04:18:51,868 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2022-02-21 04:18:51,873 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 188 states to 178 states and 233 transitions. [2022-02-21 04:18:51,874 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 178 [2022-02-21 04:18:51,874 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 178 [2022-02-21 04:18:51,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 178 states and 233 transitions. [2022-02-21 04:18:51,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:51,875 INFO L681 BuchiCegarLoop]: Abstraction has 178 states and 233 transitions. [2022-02-21 04:18:51,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states and 233 transitions. [2022-02-21 04:18:51,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2022-02-21 04:18:51,894 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:51,895 INFO L82 GeneralOperation]: Start isEquivalent. First operand 178 states and 233 transitions. Second operand has 178 states, 178 states have (on average 1.3089887640449438) internal successors, (233), 177 states have internal predecessors, (233), 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 04:18:51,896 INFO L74 IsIncluded]: Start isIncluded. First operand 178 states and 233 transitions. Second operand has 178 states, 178 states have (on average 1.3089887640449438) internal successors, (233), 177 states have internal predecessors, (233), 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 04:18:51,897 INFO L87 Difference]: Start difference. First operand 178 states and 233 transitions. Second operand has 178 states, 178 states have (on average 1.3089887640449438) internal successors, (233), 177 states have internal predecessors, (233), 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 04:18:51,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:51,902 INFO L93 Difference]: Finished difference Result 178 states and 233 transitions. [2022-02-21 04:18:51,902 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 233 transitions. [2022-02-21 04:18:51,903 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:51,903 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:51,904 INFO L74 IsIncluded]: Start isIncluded. First operand has 178 states, 178 states have (on average 1.3089887640449438) internal successors, (233), 177 states have internal predecessors, (233), 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 178 states and 233 transitions. [2022-02-21 04:18:51,904 INFO L87 Difference]: Start difference. First operand has 178 states, 178 states have (on average 1.3089887640449438) internal successors, (233), 177 states have internal predecessors, (233), 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 178 states and 233 transitions. [2022-02-21 04:18:51,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:51,908 INFO L93 Difference]: Finished difference Result 178 states and 233 transitions. [2022-02-21 04:18:51,908 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 233 transitions. [2022-02-21 04:18:51,909 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:51,909 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:51,909 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:51,909 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:51,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 178 states have (on average 1.3089887640449438) internal successors, (233), 177 states have internal predecessors, (233), 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 04:18:51,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 233 transitions. [2022-02-21 04:18:51,913 INFO L704 BuchiCegarLoop]: Abstraction has 178 states and 233 transitions. [2022-02-21 04:18:51,914 INFO L587 BuchiCegarLoop]: Abstraction has 178 states and 233 transitions. [2022-02-21 04:18:51,914 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:51,914 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 178 states and 233 transitions. [2022-02-21 04:18:51,915 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2022-02-21 04:18:51,915 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:51,915 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:51,915 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:51,915 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:51,916 INFO L791 eck$LassoCheckResult]: Stem: 572#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 490#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret7#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 491#L693 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 528#L686 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 529#L701 main_#t~ret7#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1; 520#L193 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 426#L165 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 427#L59 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 541#L934-2 [2022-02-21 04:18:51,916 INFO L793 eck$LassoCheckResult]: Loop: 541#L934-2 assume !false; 536#L935 assume test_~splverifierCounter~0#1 < 4; 482#L936 test_~tmp~9#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 404#L944 assume !(0 != test_~tmp~9#1); 406#L944-2 test_~tmp___0~2#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 567#L954 assume !(0 != test_~tmp___0~2#1); 523#L954-2 test_~tmp___2~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 542#L964 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 440#L972 assume 0 != test_~tmp___1~0#1; 441#L972-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 573#L856 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 442#L69 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 443#L728 assume !(0 != ~pumpRunning~0); 451#L728-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 444#L786 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1; 445#L760-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 555#L752-3 assume { :end_inline_processEnvironment__wrappee__base } true; 429#L760-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 487#L786-1 assume { :end_inline_processEnvironment } true; 525#L735-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 526#L652 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 415#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 416#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 540#L745 assume { :end_inline_timeShift } true; 541#L934-2 [2022-02-21 04:18:51,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:51,916 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:18:51,916 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:51,917 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030819160] [2022-02-21 04:18:51,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:51,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:51,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:51,929 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:51,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:51,942 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:51,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:51,942 INFO L85 PathProgramCache]: Analyzing trace with hash 956810363, now seen corresponding path program 1 times [2022-02-21 04:18:51,942 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:51,942 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671150977] [2022-02-21 04:18:51,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:51,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:51,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:51,963 INFO L290 TraceCheckUtils]: 0: Hoare triple {936#true} assume !false; {936#true} is VALID [2022-02-21 04:18:51,963 INFO L290 TraceCheckUtils]: 1: Hoare triple {936#true} assume test_~splverifierCounter~0#1 < 4; {936#true} is VALID [2022-02-21 04:18:51,963 INFO L290 TraceCheckUtils]: 2: Hoare triple {936#true} test_~tmp~9#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; {936#true} is VALID [2022-02-21 04:18:51,963 INFO L290 TraceCheckUtils]: 3: Hoare triple {936#true} assume !(0 != test_~tmp~9#1); {936#true} is VALID [2022-02-21 04:18:51,964 INFO L290 TraceCheckUtils]: 4: Hoare triple {936#true} test_~tmp___0~2#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; {936#true} is VALID [2022-02-21 04:18:51,964 INFO L290 TraceCheckUtils]: 5: Hoare triple {936#true} assume !(0 != test_~tmp___0~2#1); {936#true} is VALID [2022-02-21 04:18:51,964 INFO L290 TraceCheckUtils]: 6: Hoare triple {936#true} test_~tmp___2~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; {936#true} is VALID [2022-02-21 04:18:51,964 INFO L290 TraceCheckUtils]: 7: Hoare triple {936#true} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; {936#true} is VALID [2022-02-21 04:18:51,964 INFO L290 TraceCheckUtils]: 8: Hoare triple {936#true} assume 0 != test_~tmp___1~0#1; {936#true} is VALID [2022-02-21 04:18:51,964 INFO L290 TraceCheckUtils]: 9: Hoare triple {936#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; {936#true} is VALID [2022-02-21 04:18:51,964 INFO L290 TraceCheckUtils]: 10: Hoare triple {936#true} __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; {936#true} is VALID [2022-02-21 04:18:51,964 INFO L290 TraceCheckUtils]: 11: Hoare triple {936#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {936#true} is VALID [2022-02-21 04:18:51,965 INFO L290 TraceCheckUtils]: 12: Hoare triple {936#true} assume !(0 != ~pumpRunning~0); {938#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:51,965 INFO L290 TraceCheckUtils]: 13: Hoare triple {938#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; {938#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:51,965 INFO L290 TraceCheckUtils]: 14: Hoare triple {938#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1; {938#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:51,966 INFO L290 TraceCheckUtils]: 15: Hoare triple {938#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {937#false} is VALID [2022-02-21 04:18:51,966 INFO L290 TraceCheckUtils]: 16: Hoare triple {937#false} assume { :end_inline_processEnvironment__wrappee__base } true; {937#false} is VALID [2022-02-21 04:18:51,966 INFO L290 TraceCheckUtils]: 17: Hoare triple {937#false} assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; {937#false} is VALID [2022-02-21 04:18:51,966 INFO L290 TraceCheckUtils]: 18: Hoare triple {937#false} assume { :end_inline_processEnvironment } true; {937#false} is VALID [2022-02-21 04:18:51,966 INFO L290 TraceCheckUtils]: 19: Hoare triple {937#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; {937#false} is VALID [2022-02-21 04:18:51,966 INFO L290 TraceCheckUtils]: 20: Hoare triple {937#false} __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; {937#false} is VALID [2022-02-21 04:18:51,966 INFO L290 TraceCheckUtils]: 21: Hoare triple {937#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); {937#false} is VALID [2022-02-21 04:18:51,966 INFO L290 TraceCheckUtils]: 22: Hoare triple {937#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {937#false} is VALID [2022-02-21 04:18:51,967 INFO L290 TraceCheckUtils]: 23: Hoare triple {937#false} assume { :end_inline_timeShift } true; {937#false} is VALID [2022-02-21 04:18:51,967 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 04:18:51,967 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:51,967 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671150977] [2022-02-21 04:18:51,967 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671150977] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:51,967 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:51,967 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:51,967 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720194116] [2022-02-21 04:18:51,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:51,968 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:51,968 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:51,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:51,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:51,968 INFO L87 Difference]: Start difference. First operand 178 states and 233 transitions. cyclomatic complexity: 57 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:52,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:52,183 INFO L93 Difference]: Finished difference Result 249 states and 314 transitions. [2022-02-21 04:18:52,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:52,183 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:52,197 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:52,198 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 249 states and 314 transitions. [2022-02-21 04:18:52,205 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 172 [2022-02-21 04:18:52,211 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 249 states to 249 states and 314 transitions. [2022-02-21 04:18:52,211 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 249 [2022-02-21 04:18:52,212 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 249 [2022-02-21 04:18:52,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 249 states and 314 transitions. [2022-02-21 04:18:52,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:52,212 INFO L681 BuchiCegarLoop]: Abstraction has 249 states and 314 transitions. [2022-02-21 04:18:52,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states and 314 transitions. [2022-02-21 04:18:52,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2022-02-21 04:18:52,218 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:52,219 INFO L82 GeneralOperation]: Start isEquivalent. First operand 249 states and 314 transitions. Second operand has 249 states, 249 states have (on average 1.2610441767068272) internal successors, (314), 248 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:52,219 INFO L74 IsIncluded]: Start isIncluded. First operand 249 states and 314 transitions. Second operand has 249 states, 249 states have (on average 1.2610441767068272) internal successors, (314), 248 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:52,219 INFO L87 Difference]: Start difference. First operand 249 states and 314 transitions. Second operand has 249 states, 249 states have (on average 1.2610441767068272) internal successors, (314), 248 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:52,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:52,226 INFO L93 Difference]: Finished difference Result 249 states and 314 transitions. [2022-02-21 04:18:52,226 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 314 transitions. [2022-02-21 04:18:52,227 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:52,227 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:52,227 INFO L74 IsIncluded]: Start isIncluded. First operand has 249 states, 249 states have (on average 1.2610441767068272) internal successors, (314), 248 states have internal predecessors, (314), 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 249 states and 314 transitions. [2022-02-21 04:18:52,228 INFO L87 Difference]: Start difference. First operand has 249 states, 249 states have (on average 1.2610441767068272) internal successors, (314), 248 states have internal predecessors, (314), 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 249 states and 314 transitions. [2022-02-21 04:18:52,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:52,234 INFO L93 Difference]: Finished difference Result 249 states and 314 transitions. [2022-02-21 04:18:52,234 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 314 transitions. [2022-02-21 04:18:52,235 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:52,235 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:52,235 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:52,235 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:52,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 249 states have (on average 1.2610441767068272) internal successors, (314), 248 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:52,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 314 transitions. [2022-02-21 04:18:52,241 INFO L704 BuchiCegarLoop]: Abstraction has 249 states and 314 transitions. [2022-02-21 04:18:52,241 INFO L587 BuchiCegarLoop]: Abstraction has 249 states and 314 transitions. [2022-02-21 04:18:52,242 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:52,242 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 249 states and 314 transitions. [2022-02-21 04:18:52,243 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 172 [2022-02-21 04:18:52,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:52,243 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:52,243 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:52,243 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:52,243 INFO L791 eck$LassoCheckResult]: Stem: 1369#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1283#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret7#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 1284#L693 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1324#L686 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 1325#L701 main_#t~ret7#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1; 1315#L193 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 1217#L165 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1218#L59 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1338#L934-2 [2022-02-21 04:18:52,245 INFO L793 eck$LassoCheckResult]: Loop: 1338#L934-2 assume !false; 1330#L935 assume test_~splverifierCounter~0#1 < 4; 1275#L936 test_~tmp~9#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 1195#L944 assume !(0 != test_~tmp~9#1); 1197#L944-2 test_~tmp___0~2#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 1363#L954 assume !(0 != test_~tmp___0~2#1); 1319#L954-2 test_~tmp___2~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 1339#L964 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1340#L920 assume { :end_inline_startSystem } true; 1232#L972-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 1372#L856 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 1233#L69 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1234#L728 assume !(0 != ~pumpRunning~0); 1241#L728-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 1235#L786 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1; 1236#L760-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 1368#L660-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 1255#L665-1 isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; 1256#L905-3 assume !(0 != isHighWaterLevel_~tmp~8#1);isHighWaterLevel_~tmp___0~1#1 := 1; 1334#L905-5 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 1364#L911-1 processEnvironment__wrappee__methaneQuery_#t~ret37#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~5#1 := processEnvironment__wrappee__methaneQuery_#t~ret37#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1; 1299#L764-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1300#L752-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1220#L760-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1280#L786-1 assume { :end_inline_processEnvironment } true; 1321#L735-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 1322#L652 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 1206#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 1207#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1337#L745 assume { :end_inline_timeShift } true; 1338#L934-2 [2022-02-21 04:18:52,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:52,250 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:18:52,250 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:52,250 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005117507] [2022-02-21 04:18:52,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:52,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:52,261 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:52,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:52,314 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:52,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:52,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1098619406, now seen corresponding path program 1 times [2022-02-21 04:18:52,315 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:52,315 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862605633] [2022-02-21 04:18:52,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:52,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:52,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:52,368 INFO L290 TraceCheckUtils]: 0: Hoare triple {1940#true} assume !false; {1940#true} is VALID [2022-02-21 04:18:52,368 INFO L290 TraceCheckUtils]: 1: Hoare triple {1940#true} assume test_~splverifierCounter~0#1 < 4; {1940#true} is VALID [2022-02-21 04:18:52,369 INFO L290 TraceCheckUtils]: 2: Hoare triple {1940#true} test_~tmp~9#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; {1940#true} is VALID [2022-02-21 04:18:52,369 INFO L290 TraceCheckUtils]: 3: Hoare triple {1940#true} assume !(0 != test_~tmp~9#1); {1940#true} is VALID [2022-02-21 04:18:52,369 INFO L290 TraceCheckUtils]: 4: Hoare triple {1940#true} test_~tmp___0~2#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; {1940#true} is VALID [2022-02-21 04:18:52,369 INFO L290 TraceCheckUtils]: 5: Hoare triple {1940#true} assume !(0 != test_~tmp___0~2#1); {1940#true} is VALID [2022-02-21 04:18:52,369 INFO L290 TraceCheckUtils]: 6: Hoare triple {1940#true} test_~tmp___2~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; {1940#true} is VALID [2022-02-21 04:18:52,369 INFO L290 TraceCheckUtils]: 7: Hoare triple {1940#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {1940#true} is VALID [2022-02-21 04:18:52,369 INFO L290 TraceCheckUtils]: 8: Hoare triple {1940#true} assume { :end_inline_startSystem } true; {1940#true} is VALID [2022-02-21 04:18:52,369 INFO L290 TraceCheckUtils]: 9: Hoare triple {1940#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; {1940#true} is VALID [2022-02-21 04:18:52,369 INFO L290 TraceCheckUtils]: 10: Hoare triple {1940#true} __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; {1940#true} is VALID [2022-02-21 04:18:52,370 INFO L290 TraceCheckUtils]: 11: Hoare triple {1940#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {1940#true} is VALID [2022-02-21 04:18:52,370 INFO L290 TraceCheckUtils]: 12: Hoare triple {1940#true} assume !(0 != ~pumpRunning~0); {1940#true} is VALID [2022-02-21 04:18:52,370 INFO L290 TraceCheckUtils]: 13: Hoare triple {1940#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; {1940#true} is VALID [2022-02-21 04:18:52,370 INFO L290 TraceCheckUtils]: 14: Hoare triple {1940#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1; {1940#true} is VALID [2022-02-21 04:18:52,370 INFO L290 TraceCheckUtils]: 15: Hoare triple {1940#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; {1940#true} is VALID [2022-02-21 04:18:52,370 INFO L290 TraceCheckUtils]: 16: Hoare triple {1940#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; {1940#true} is VALID [2022-02-21 04:18:52,371 INFO L290 TraceCheckUtils]: 17: Hoare triple {1940#true} isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; {1940#true} is VALID [2022-02-21 04:18:52,371 INFO L290 TraceCheckUtils]: 18: Hoare triple {1940#true} assume !(0 != isHighWaterLevel_~tmp~8#1);isHighWaterLevel_~tmp___0~1#1 := 1; {1942#(not (= |ULTIMATE.start_isHighWaterLevel_~tmp___0~1#1| 0))} is VALID [2022-02-21 04:18:52,372 INFO L290 TraceCheckUtils]: 19: Hoare triple {1942#(not (= |ULTIMATE.start_isHighWaterLevel_~tmp___0~1#1| 0))} isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; {1943#(not (= |ULTIMATE.start_isHighWaterLevel_#res#1| 0))} is VALID [2022-02-21 04:18:52,372 INFO L290 TraceCheckUtils]: 20: Hoare triple {1943#(not (= |ULTIMATE.start_isHighWaterLevel_#res#1| 0))} processEnvironment__wrappee__methaneQuery_#t~ret37#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~5#1 := processEnvironment__wrappee__methaneQuery_#t~ret37#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1; {1944#(not (= |ULTIMATE.start_processEnvironment__wrappee__methaneQuery_~tmp~5#1| 0))} is VALID [2022-02-21 04:18:52,372 INFO L290 TraceCheckUtils]: 21: Hoare triple {1944#(not (= |ULTIMATE.start_processEnvironment__wrappee__methaneQuery_~tmp~5#1| 0))} assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {1941#false} is VALID [2022-02-21 04:18:52,372 INFO L290 TraceCheckUtils]: 22: Hoare triple {1941#false} assume { :end_inline_processEnvironment__wrappee__base } true; {1941#false} is VALID [2022-02-21 04:18:52,373 INFO L290 TraceCheckUtils]: 23: Hoare triple {1941#false} assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; {1941#false} is VALID [2022-02-21 04:18:52,373 INFO L290 TraceCheckUtils]: 24: Hoare triple {1941#false} assume { :end_inline_processEnvironment } true; {1941#false} is VALID [2022-02-21 04:18:52,373 INFO L290 TraceCheckUtils]: 25: Hoare triple {1941#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; {1941#false} is VALID [2022-02-21 04:18:52,373 INFO L290 TraceCheckUtils]: 26: Hoare triple {1941#false} __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; {1941#false} is VALID [2022-02-21 04:18:52,373 INFO L290 TraceCheckUtils]: 27: Hoare triple {1941#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); {1941#false} is VALID [2022-02-21 04:18:52,373 INFO L290 TraceCheckUtils]: 28: Hoare triple {1941#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {1941#false} is VALID [2022-02-21 04:18:52,373 INFO L290 TraceCheckUtils]: 29: Hoare triple {1941#false} assume { :end_inline_timeShift } true; {1941#false} is VALID [2022-02-21 04:18:52,373 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 04:18:52,374 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:52,374 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862605633] [2022-02-21 04:18:52,374 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862605633] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:52,374 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:52,374 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:52,374 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375275502] [2022-02-21 04:18:52,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:52,374 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:52,374 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:52,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:52,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:52,375 INFO L87 Difference]: Start difference. First operand 249 states and 314 transitions. cyclomatic complexity: 67 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 04:18:53,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:53,029 INFO L93 Difference]: Finished difference Result 762 states and 950 transitions. [2022-02-21 04:18:53,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:53,029 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 04:18:53,047 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:53,048 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 762 states and 950 transitions. [2022-02-21 04:18:53,070 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 548 [2022-02-21 04:18:53,091 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 762 states to 762 states and 950 transitions. [2022-02-21 04:18:53,092 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 762 [2022-02-21 04:18:53,092 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 762 [2022-02-21 04:18:53,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 762 states and 950 transitions. [2022-02-21 04:18:53,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:53,094 INFO L681 BuchiCegarLoop]: Abstraction has 762 states and 950 transitions. [2022-02-21 04:18:53,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states and 950 transitions. [2022-02-21 04:18:53,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 267. [2022-02-21 04:18:53,103 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:53,104 INFO L82 GeneralOperation]: Start isEquivalent. First operand 762 states and 950 transitions. Second operand has 267 states, 267 states have (on average 1.243445692883895) internal successors, (332), 266 states have internal predecessors, (332), 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 04:18:53,104 INFO L74 IsIncluded]: Start isIncluded. First operand 762 states and 950 transitions. Second operand has 267 states, 267 states have (on average 1.243445692883895) internal successors, (332), 266 states have internal predecessors, (332), 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 04:18:53,105 INFO L87 Difference]: Start difference. First operand 762 states and 950 transitions. Second operand has 267 states, 267 states have (on average 1.243445692883895) internal successors, (332), 266 states have internal predecessors, (332), 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 04:18:53,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:53,123 INFO L93 Difference]: Finished difference Result 762 states and 950 transitions. [2022-02-21 04:18:53,123 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 950 transitions. [2022-02-21 04:18:53,124 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:53,125 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:53,125 INFO L74 IsIncluded]: Start isIncluded. First operand has 267 states, 267 states have (on average 1.243445692883895) internal successors, (332), 266 states have internal predecessors, (332), 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 762 states and 950 transitions. [2022-02-21 04:18:53,126 INFO L87 Difference]: Start difference. First operand has 267 states, 267 states have (on average 1.243445692883895) internal successors, (332), 266 states have internal predecessors, (332), 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 762 states and 950 transitions. [2022-02-21 04:18:53,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:53,143 INFO L93 Difference]: Finished difference Result 762 states and 950 transitions. [2022-02-21 04:18:53,144 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 950 transitions. [2022-02-21 04:18:53,145 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:53,145 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:53,145 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:53,145 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:53,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 267 states have (on average 1.243445692883895) internal successors, (332), 266 states have internal predecessors, (332), 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 04:18:53,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 332 transitions. [2022-02-21 04:18:53,149 INFO L704 BuchiCegarLoop]: Abstraction has 267 states and 332 transitions. [2022-02-21 04:18:53,149 INFO L587 BuchiCegarLoop]: Abstraction has 267 states and 332 transitions. [2022-02-21 04:18:53,150 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:18:53,150 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 267 states and 332 transitions. [2022-02-21 04:18:53,151 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 184 [2022-02-21 04:18:53,151 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:53,151 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:53,151 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:53,152 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:53,152 INFO L791 eck$LassoCheckResult]: Stem: 2901#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 2807#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret7#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 2808#L693 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2847#L686 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 2848#L701 main_#t~ret7#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1; 2838#L193 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 2741#L165 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2742#L59 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2863#L934-2 [2022-02-21 04:18:53,152 INFO L793 eck$LassoCheckResult]: Loop: 2863#L934-2 assume !false; 2853#L935 assume test_~splverifierCounter~0#1 < 4; 2799#L936 test_~tmp~9#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 2719#L944 assume !(0 != test_~tmp~9#1); 2721#L944-2 test_~tmp___0~2#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 2891#L954 assume !(0 != test_~tmp___0~2#1); 2842#L954-2 test_~tmp___2~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 2864#L964 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2865#L920 assume { :end_inline_startSystem } true; 2756#L972-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 2905#L856 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 2757#L69 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2758#L728 assume !(0 != ~pumpRunning~0); 2767#L728-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 2759#L786 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1; 2760#L760-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 2900#L660-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 2779#L665-1 isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; 2780#L905-3 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2858#L905-5 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 2917#L911-1 processEnvironment__wrappee__methaneQuery_#t~ret37#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~5#1 := processEnvironment__wrappee__methaneQuery_#t~ret37#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1; 2914#L764-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2859#L752-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2744#L760-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2804#L786-1 assume { :end_inline_processEnvironment } true; 2844#L735-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 2845#L652 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 2730#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 2731#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2862#L745 assume { :end_inline_timeShift } true; 2863#L934-2 [2022-02-21 04:18:53,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:53,153 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-02-21 04:18:53,153 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:53,153 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523206704] [2022-02-21 04:18:53,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:53,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:53,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:53,162 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:53,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:53,170 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:53,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:53,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1356784844, now seen corresponding path program 1 times [2022-02-21 04:18:53,171 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:53,171 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945501944] [2022-02-21 04:18:53,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:53,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:53,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:53,201 INFO L290 TraceCheckUtils]: 0: Hoare triple {4509#true} assume !false; {4509#true} is VALID [2022-02-21 04:18:53,202 INFO L290 TraceCheckUtils]: 1: Hoare triple {4509#true} assume test_~splverifierCounter~0#1 < 4; {4509#true} is VALID [2022-02-21 04:18:53,202 INFO L290 TraceCheckUtils]: 2: Hoare triple {4509#true} test_~tmp~9#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; {4509#true} is VALID [2022-02-21 04:18:53,202 INFO L290 TraceCheckUtils]: 3: Hoare triple {4509#true} assume !(0 != test_~tmp~9#1); {4509#true} is VALID [2022-02-21 04:18:53,203 INFO L290 TraceCheckUtils]: 4: Hoare triple {4509#true} test_~tmp___0~2#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; {4509#true} is VALID [2022-02-21 04:18:53,203 INFO L290 TraceCheckUtils]: 5: Hoare triple {4509#true} assume !(0 != test_~tmp___0~2#1); {4509#true} is VALID [2022-02-21 04:18:53,203 INFO L290 TraceCheckUtils]: 6: Hoare triple {4509#true} test_~tmp___2~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; {4509#true} is VALID [2022-02-21 04:18:53,203 INFO L290 TraceCheckUtils]: 7: Hoare triple {4509#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {4509#true} is VALID [2022-02-21 04:18:53,204 INFO L290 TraceCheckUtils]: 8: Hoare triple {4509#true} assume { :end_inline_startSystem } true; {4509#true} is VALID [2022-02-21 04:18:53,204 INFO L290 TraceCheckUtils]: 9: Hoare triple {4509#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; {4509#true} is VALID [2022-02-21 04:18:53,204 INFO L290 TraceCheckUtils]: 10: Hoare triple {4509#true} __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; {4509#true} is VALID [2022-02-21 04:18:53,204 INFO L290 TraceCheckUtils]: 11: Hoare triple {4509#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {4509#true} is VALID [2022-02-21 04:18:53,204 INFO L290 TraceCheckUtils]: 12: Hoare triple {4509#true} assume !(0 != ~pumpRunning~0); {4509#true} is VALID [2022-02-21 04:18:53,205 INFO L290 TraceCheckUtils]: 13: Hoare triple {4509#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; {4509#true} is VALID [2022-02-21 04:18:53,205 INFO L290 TraceCheckUtils]: 14: Hoare triple {4509#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1; {4509#true} is VALID [2022-02-21 04:18:53,205 INFO L290 TraceCheckUtils]: 15: Hoare triple {4509#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; {4509#true} is VALID [2022-02-21 04:18:53,206 INFO L290 TraceCheckUtils]: 16: Hoare triple {4509#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; {4511#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:53,206 INFO L290 TraceCheckUtils]: 17: Hoare triple {4511#(not (= 2 ~waterLevel~0))} isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; {4511#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:53,206 INFO L290 TraceCheckUtils]: 18: Hoare triple {4511#(not (= 2 ~waterLevel~0))} assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0; {4511#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:53,207 INFO L290 TraceCheckUtils]: 19: Hoare triple {4511#(not (= 2 ~waterLevel~0))} isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; {4511#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:53,207 INFO L290 TraceCheckUtils]: 20: Hoare triple {4511#(not (= 2 ~waterLevel~0))} processEnvironment__wrappee__methaneQuery_#t~ret37#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~5#1 := processEnvironment__wrappee__methaneQuery_#t~ret37#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1; {4511#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:53,207 INFO L290 TraceCheckUtils]: 21: Hoare triple {4511#(not (= 2 ~waterLevel~0))} assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {4511#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:53,208 INFO L290 TraceCheckUtils]: 22: Hoare triple {4511#(not (= 2 ~waterLevel~0))} assume { :end_inline_processEnvironment__wrappee__base } true; {4511#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:53,208 INFO L290 TraceCheckUtils]: 23: Hoare triple {4511#(not (= 2 ~waterLevel~0))} assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; {4511#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:53,208 INFO L290 TraceCheckUtils]: 24: Hoare triple {4511#(not (= 2 ~waterLevel~0))} assume { :end_inline_processEnvironment } true; {4511#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:53,209 INFO L290 TraceCheckUtils]: 25: Hoare triple {4511#(not (= 2 ~waterLevel~0))} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; {4512#(not (= |ULTIMATE.start_getWaterLevel_#res#1| 2))} is VALID [2022-02-21 04:18:53,209 INFO L290 TraceCheckUtils]: 26: Hoare triple {4512#(not (= |ULTIMATE.start_getWaterLevel_#res#1| 2))} __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; {4513#(not (= 2 |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~0#1|))} is VALID [2022-02-21 04:18:53,210 INFO L290 TraceCheckUtils]: 27: Hoare triple {4513#(not (= 2 |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~0#1|))} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); {4510#false} is VALID [2022-02-21 04:18:53,210 INFO L290 TraceCheckUtils]: 28: Hoare triple {4510#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {4510#false} is VALID [2022-02-21 04:18:53,210 INFO L290 TraceCheckUtils]: 29: Hoare triple {4510#false} assume { :end_inline_timeShift } true; {4510#false} is VALID [2022-02-21 04:18:53,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:53,210 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:53,211 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945501944] [2022-02-21 04:18:53,211 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945501944] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:53,211 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:53,211 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:53,211 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554581415] [2022-02-21 04:18:53,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:53,212 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:53,212 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:53,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:53,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:53,212 INFO L87 Difference]: Start difference. First operand 267 states and 332 transitions. cyclomatic complexity: 67 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:54,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:54,275 INFO L93 Difference]: Finished difference Result 1260 states and 1553 transitions. [2022-02-21 04:18:54,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:18:54,275 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:54,305 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:54,306 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1260 states and 1553 transitions. [2022-02-21 04:18:54,344 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 861 [2022-02-21 04:18:54,382 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1260 states to 1260 states and 1553 transitions. [2022-02-21 04:18:54,383 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1260 [2022-02-21 04:18:54,383 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1260 [2022-02-21 04:18:54,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1260 states and 1553 transitions. [2022-02-21 04:18:54,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:54,385 INFO L681 BuchiCegarLoop]: Abstraction has 1260 states and 1553 transitions. [2022-02-21 04:18:54,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states and 1553 transitions. [2022-02-21 04:18:54,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 523. [2022-02-21 04:18:54,392 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:54,393 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1260 states and 1553 transitions. Second operand has 523 states, 523 states have (on average 1.231357552581262) internal successors, (644), 522 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:54,394 INFO L74 IsIncluded]: Start isIncluded. First operand 1260 states and 1553 transitions. Second operand has 523 states, 523 states have (on average 1.231357552581262) internal successors, (644), 522 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:54,395 INFO L87 Difference]: Start difference. First operand 1260 states and 1553 transitions. Second operand has 523 states, 523 states have (on average 1.231357552581262) internal successors, (644), 522 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:54,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:54,429 INFO L93 Difference]: Finished difference Result 1260 states and 1553 transitions. [2022-02-21 04:18:54,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 1553 transitions. [2022-02-21 04:18:54,430 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:54,430 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:54,431 INFO L74 IsIncluded]: Start isIncluded. First operand has 523 states, 523 states have (on average 1.231357552581262) internal successors, (644), 522 states have internal predecessors, (644), 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 1260 states and 1553 transitions. [2022-02-21 04:18:54,432 INFO L87 Difference]: Start difference. First operand has 523 states, 523 states have (on average 1.231357552581262) internal successors, (644), 522 states have internal predecessors, (644), 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 1260 states and 1553 transitions. [2022-02-21 04:18:54,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:54,470 INFO L93 Difference]: Finished difference Result 1260 states and 1553 transitions. [2022-02-21 04:18:54,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 1553 transitions. [2022-02-21 04:18:54,471 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:54,471 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:54,471 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:54,471 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:54,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 523 states have (on average 1.231357552581262) internal successors, (644), 522 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:54,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 644 transitions. [2022-02-21 04:18:54,480 INFO L704 BuchiCegarLoop]: Abstraction has 523 states and 644 transitions. [2022-02-21 04:18:54,480 INFO L587 BuchiCegarLoop]: Abstraction has 523 states and 644 transitions. [2022-02-21 04:18:54,480 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2022-02-21 04:18:54,481 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 523 states and 644 transitions. [2022-02-21 04:18:54,482 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 366 [2022-02-21 04:18:54,482 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:54,482 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:54,483 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:54,483 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:54,483 INFO L791 eck$LassoCheckResult]: Stem: 6006#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 5883#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret7#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 5884#L693 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 5931#L686 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 5932#L701 main_#t~ret7#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1; 5919#L193 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 5812#L165 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 5813#L59 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 5952#L934-2 [2022-02-21 04:18:54,483 INFO L793 eck$LassoCheckResult]: Loop: 5952#L934-2 assume !false; 5964#L935 assume test_~splverifierCounter~0#1 < 4; 6249#L936 test_~tmp~9#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 6247#L944 assume !(0 != test_~tmp~9#1); 6245#L944-2 test_~tmp___0~2#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 6241#L954 assume !(0 != test_~tmp___0~2#1); 6238#L954-2 test_~tmp___2~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 6236#L964 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 6233#L920 assume { :end_inline_startSystem } true; 6231#L972-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 6228#L856 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 6226#L69 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 5928#L728 assume !(0 != ~pumpRunning~0); 5840#L728-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 5834#L786 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1; 5835#L760-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 6004#L660-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 5855#L665-1 isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; 5856#L905-3 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0; 5945#L905-5 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 6198#L911-1 processEnvironment__wrappee__methaneQuery_#t~ret37#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~5#1 := processEnvironment__wrappee__methaneQuery_#t~ret37#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1; 6197#L764-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 5946#L752-2 assume { :end_inline_processEnvironment__wrappee__base } true; 5817#L760-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 5882#L786-1 assume { :end_inline_processEnvironment } true; 5929#L735-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 5930#L652 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 6065#L80 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 5847#L856-1 __utac_acc__Specification5_spec__3_#t~ret6#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret6#1;havoc __utac_acc__Specification5_spec__3_#t~ret6#1; 5848#L84 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 6001#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 5951#L745 assume { :end_inline_timeShift } true; 5952#L934-2 [2022-02-21 04:18:54,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:54,484 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2022-02-21 04:18:54,484 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:54,484 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666709335] [2022-02-21 04:18:54,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:54,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:54,492 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:54,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:54,498 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:54,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:54,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1780727023, now seen corresponding path program 1 times [2022-02-21 04:18:54,513 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:54,513 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249815026] [2022-02-21 04:18:54,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:54,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:54,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:54,519 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:54,524 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:54,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:54,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1917682728, now seen corresponding path program 1 times [2022-02-21 04:18:54,524 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:54,525 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141318960] [2022-02-21 04:18:54,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:54,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:54,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:54,533 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:54,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:54,543 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:57,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:57 BoogieIcfgContainer [2022-02-21 04:18:57,475 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:57,476 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:57,476 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:57,476 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:57,477 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:51" (3/4) ... [2022-02-21 04:18:57,478 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:57,518 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:57,519 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:57,520 INFO L158 Benchmark]: Toolchain (without parser) took 8068.47ms. Allocated memory was 96.5MB in the beginning and 197.1MB in the end (delta: 100.7MB). Free memory was 55.1MB in the beginning and 138.9MB in the end (delta: -83.8MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2022-02-21 04:18:57,520 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory was 72.3MB in the beginning and 72.2MB in the end (delta: 68.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:57,520 INFO L158 Benchmark]: CACSL2BoogieTranslator took 687.49ms. Allocated memory is still 96.5MB. Free memory was 54.9MB in the beginning and 60.1MB in the end (delta: -5.2MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2022-02-21 04:18:57,520 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.19ms. Allocated memory is still 96.5MB. Free memory was 60.1MB in the beginning and 55.2MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:57,520 INFO L158 Benchmark]: Boogie Preprocessor took 86.52ms. Allocated memory is still 96.5MB. Free memory was 55.2MB in the beginning and 52.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:57,521 INFO L158 Benchmark]: RCFGBuilder took 717.87ms. Allocated memory was 96.5MB in the beginning and 136.3MB in the end (delta: 39.8MB). Free memory was 52.3MB in the beginning and 97.9MB in the end (delta: -45.7MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2022-02-21 04:18:57,521 INFO L158 Benchmark]: BuchiAutomizer took 6428.96ms. Allocated memory was 136.3MB in the beginning and 197.1MB in the end (delta: 60.8MB). Free memory was 97.9MB in the beginning and 142.0MB in the end (delta: -44.1MB). Peak memory consumption was 103.9MB. Max. memory is 16.1GB. [2022-02-21 04:18:57,521 INFO L158 Benchmark]: Witness Printer took 42.72ms. Allocated memory is still 197.1MB. Free memory was 142.0MB in the beginning and 138.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:57,522 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory was 72.3MB in the beginning and 72.2MB in the end (delta: 68.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 687.49ms. Allocated memory is still 96.5MB. Free memory was 54.9MB in the beginning and 60.1MB in the end (delta: -5.2MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.19ms. Allocated memory is still 96.5MB. Free memory was 60.1MB in the beginning and 55.2MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.52ms. Allocated memory is still 96.5MB. Free memory was 55.2MB in the beginning and 52.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 717.87ms. Allocated memory was 96.5MB in the beginning and 136.3MB in the end (delta: 39.8MB). Free memory was 52.3MB in the beginning and 97.9MB in the end (delta: -45.7MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 6428.96ms. Allocated memory was 136.3MB in the beginning and 197.1MB in the end (delta: 60.8MB). Free memory was 97.9MB in the beginning and 142.0MB in the end (delta: -44.1MB). Peak memory consumption was 103.9MB. Max. memory is 16.1GB. * Witness Printer took 42.72ms. Allocated memory is still 197.1MB. Free memory was 142.0MB in the beginning and 138.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 523 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.3s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 3.5s. Construction of modules took 0.2s. Büchi inclusion checks took 2.1s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 1232 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 523 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2844 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2844 mSDsluCounter, 3202 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2026 mSDsCounter, 83 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 257 IncrementalHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 83 mSolverCounterUnsat, 1176 mSDtfsCounter, 257 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 934]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1770f126=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c6e2548=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@568c039a=29, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57c6eaae=0, head=0, pumpRunning=0, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d852bc1=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b505077=0, methaneLevelCritical=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f727d77=0, retValue_acc=0, retValue_acc=1, retValue_acc=1, tmp=1, retValue_acc=0, \result=1, \result=1, tmp=1, retValue_acc=0, tmp___2=29, \result=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, \result=0, tmp=1, tmp___0=0, head=0, \result=1, tmp___1=0, retValue_acc=1, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6cb9533f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16856424=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@526f3e46=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@331ab03a=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 934]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int switchedOnBeforeTS ; [L102] int cleanupTimeShifts = 4; [L376] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L577] int waterLevel = 1; [L578] int methaneLevelCritical = 0; [L718] int pumpRunning = 0; [L719] int systemActive = 1; [L184] int retValue_acc ; [L185] int tmp ; [L189] FCALL select_helpers() [L190] FCALL select_features() [L191] CALL, EXPR valid_product() [L697] int retValue_acc ; [L700] retValue_acc = 1 [L701] return (retValue_acc); [L191] RET, EXPR valid_product() [L191] tmp = valid_product() [L193] COND TRUE \read(tmp) [L195] FCALL setup() [L196] CALL runTest() [L174] CALL __utac_acc__Specification5_spec__1() [L58] switchedOnBeforeTS = 0 [L174] RET __utac_acc__Specification5_spec__1() [L175] CALL test() [L925] int splverifierCounter ; [L926] int tmp ; [L927] int tmp___0 ; [L928] int tmp___1 ; [L929] int tmp___2 ; [L932] splverifierCounter = 0 Loop: [L934] COND TRUE 1 [L936] COND TRUE splverifierCounter < 4 [L942] tmp = __VERIFIER_nondet_int() [L944] COND FALSE !(\read(tmp)) [L952] tmp___0 = __VERIFIER_nondet_int() [L954] COND FALSE !(\read(tmp___0)) [L962] tmp___2 = __VERIFIER_nondet_int() [L964] COND TRUE \read(tmp___2) [L966] CALL startSystem() [L919] systemActive = 1 [L966] RET startSystem() [L979] CALL timeShift() [L726] CALL __utac_acc__Specification5_spec__2() [L67] CALL, EXPR isPumpRunning() [L852] int retValue_acc ; [L855] retValue_acc = pumpRunning [L856] return (retValue_acc); [L67] RET, EXPR isPumpRunning() [L67] switchedOnBeforeTS = isPumpRunning() [L726] RET __utac_acc__Specification5_spec__2() [L728] COND FALSE !(\read(pumpRunning)) [L735] COND TRUE \read(systemActive) [L737] CALL processEnvironment() [L783] int tmp ; [L786] COND FALSE !(\read(pumpRunning)) [L801] CALL processEnvironment__wrappee__methaneQuery() [L757] int tmp ; [L760] COND TRUE ! pumpRunning [L762] CALL, EXPR isHighWaterLevel() [L897] int retValue_acc ; [L898] int tmp ; [L899] int tmp___0 ; [L903] CALL, EXPR isHighWaterSensorDry() [L657] int retValue_acc ; [L660] COND TRUE waterLevel < 2 [L661] retValue_acc = 1 [L662] return (retValue_acc); [L903] RET, EXPR isHighWaterSensorDry() [L903] tmp = isHighWaterSensorDry() [L905] COND TRUE \read(tmp) [L906] tmp___0 = 0 [L910] retValue_acc = tmp___0 [L911] return (retValue_acc); [L762] RET, EXPR isHighWaterLevel() [L762] tmp = isHighWaterLevel() [L764] COND FALSE !(\read(tmp)) [L770] FCALL processEnvironment__wrappee__base() [L801] RET processEnvironment__wrappee__methaneQuery() [L737] RET processEnvironment() [L743] CALL __utac_acc__Specification5_spec__3() [L73] int tmp ; [L74] int tmp___0 ; [L78] CALL, EXPR getWaterLevel() [L648] int retValue_acc ; [L651] retValue_acc = waterLevel [L652] return (retValue_acc); [L78] RET, EXPR getWaterLevel() [L78] tmp = getWaterLevel() [L80] COND TRUE tmp != 2 [L82] CALL, EXPR isPumpRunning() [L852] int retValue_acc ; [L855] retValue_acc = pumpRunning [L856] return (retValue_acc); [L82] RET, EXPR isPumpRunning() [L82] tmp___0 = isPumpRunning() [L84] COND FALSE !(\read(tmp___0)) [L743] RET __utac_acc__Specification5_spec__3() [L979] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:57,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)