./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product12.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_product12.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 a08a330faab409752e65fe7d3101f81f24601e18bc944ca2e918542b1c9d8232 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:22,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:22,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:22,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:22,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:22,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:22,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:22,178 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:22,180 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:22,180 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:22,181 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:22,182 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:22,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:22,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:22,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:22,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:22,189 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:22,193 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:22,197 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:22,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:22,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:22,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:22,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:22,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:22,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:22,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:22,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:22,214 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:22,215 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:22,215 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:22,216 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:22,216 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:22,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:22,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:22,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:22,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:22,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:22,220 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:22,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:22,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:22,223 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:22,224 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:22,251 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:22,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:22,254 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:22,254 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:22,256 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:22,256 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:22,256 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:22,256 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:22,256 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:22,256 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:22,257 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:22,257 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:22,258 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:22,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:22,258 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:22,258 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:22,258 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:22,258 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:22,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:22,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:22,259 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:22,259 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:22,259 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:22,259 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:22,261 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:22,261 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:22,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:22,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:22,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:22,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:22,262 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:22,263 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:22,263 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a08a330faab409752e65fe7d3101f81f24601e18bc944ca2e918542b1c9d8232 [2022-02-21 04:18:22,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:22,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:22,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:22,497 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:22,506 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:22,508 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product12.cil.c [2022-02-21 04:18:22,562 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/109234419/5c78f76c8e5544fab1aa82805ffc6fa0/FLAG81bd035d1 [2022-02-21 04:18:22,983 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:22,984 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product12.cil.c [2022-02-21 04:18:22,990 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/109234419/5c78f76c8e5544fab1aa82805ffc6fa0/FLAG81bd035d1 [2022-02-21 04:18:23,371 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/109234419/5c78f76c8e5544fab1aa82805ffc6fa0 [2022-02-21 04:18:23,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:23,374 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:23,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:23,377 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:23,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:23,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:23" (1/1) ... [2022-02-21 04:18:23,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b2c5c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:23, skipping insertion in model container [2022-02-21 04:18:23,386 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:23" (1/1) ... [2022-02-21 04:18:23,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:23,446 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:23,685 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_product12.cil.c[6299,6312] [2022-02-21 04:18:23,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:23,783 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:23,822 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_product12.cil.c[6299,6312] [2022-02-21 04:18:23,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:23,873 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:23,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:23 WrapperNode [2022-02-21 04:18:23,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:23,874 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:23,874 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:23,874 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:23,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:23" (1/1) ... [2022-02-21 04:18:23,901 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:23" (1/1) ... [2022-02-21 04:18:23,932 INFO L137 Inliner]: procedures = 54, calls = 152, calls flagged for inlining = 49, calls inlined = 42, statements flattened = 328 [2022-02-21 04:18:23,932 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:23,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:23,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:23,933 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:23,941 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:23" (1/1) ... [2022-02-21 04:18:23,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:23" (1/1) ... [2022-02-21 04:18:23,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:23" (1/1) ... [2022-02-21 04:18:23,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:23" (1/1) ... [2022-02-21 04:18:23,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:23" (1/1) ... [2022-02-21 04:18:23,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:23" (1/1) ... [2022-02-21 04:18:23,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:23" (1/1) ... [2022-02-21 04:18:23,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:23,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:23,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:23,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:23,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:23" (1/1) ... [2022-02-21 04:18:23,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:23,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:23,986 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 04:18:23,995 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 04:18:24,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:24,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:24,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:24,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:24,135 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:24,136 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:24,438 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:24,444 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:24,444 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:24,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:24 BoogieIcfgContainer [2022-02-21 04:18:24,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:24,455 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:24,456 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:24,462 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:24,463 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:24,463 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:23" (1/3) ... [2022-02-21 04:18:24,464 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4264a96e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:24, skipping insertion in model container [2022-02-21 04:18:24,464 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:24,464 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:23" (2/3) ... [2022-02-21 04:18:24,465 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4264a96e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:24, skipping insertion in model container [2022-02-21 04:18:24,465 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:24,465 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:24" (3/3) ... [2022-02-21 04:18:24,466 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product12.cil.c [2022-02-21 04:18:24,507 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:24,507 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:24,507 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:24,507 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:24,507 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:24,508 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:24,508 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:24,508 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:24,526 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 90 states, 89 states have (on average 1.3595505617977528) internal successors, (121), 89 states have internal predecessors, (121), 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 04:18:24,560 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2022-02-21 04:18:24,560 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:24,560 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:24,565 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:24,565 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 04:18:24,566 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:24,567 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 90 states, 89 states have (on average 1.3595505617977528) internal successors, (121), 89 states have internal predecessors, (121), 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 04:18:24,578 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2022-02-21 04:18:24,578 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:24,579 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:24,579 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:24,579 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 04:18:24,583 INFO L791 eck$LassoCheckResult]: Stem: 69#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 52#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~4#1, main_~tmp~3#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 76#L911true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 34#L904true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 26#L919true main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 59#L509true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 84#L482true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 49#L59true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 27#L355-2true [2022-02-21 04:18:24,585 INFO L793 eck$LassoCheckResult]: Loop: 27#L355-2true assume !false; 32#L356true assume test_~splverifierCounter~0#1 < 4; 77#L357true test_~tmp~2#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 72#L365true assume !(0 != test_~tmp~2#1); 86#L365-2true test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 18#L375true assume !(0 != test_~tmp___0~1#1); 54#L375-2true test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 22#L385true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 44#L258true assume { :end_inline_startSystem } true; 60#L393-2true 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~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 8#L198true __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; 24#L69true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 40#L121true assume !(0 != ~pumpRunning~0); 12#L121-2true assume !(0 != ~systemActive~0); 31#L128-1true 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~3#1;havoc getWaterLevel_~retValue_acc~3#1;getWaterLevel_~retValue_acc~3#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~3#1; 85#L339true __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; 15#L80true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 63#L80-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 87#L138true assume { :end_inline_timeShift } true; 27#L355-2true [2022-02-21 04:18:24,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:24,593 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:18:24,600 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:24,601 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315240763] [2022-02-21 04:18:24,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:24,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:24,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:24,722 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:24,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:24,797 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:24,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:24,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1263778411, now seen corresponding path program 1 times [2022-02-21 04:18:24,801 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:24,802 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193219836] [2022-02-21 04:18:24,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:24,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:24,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:24,945 INFO L290 TraceCheckUtils]: 0: Hoare triple {96#true} assume !false; {96#true} is VALID [2022-02-21 04:18:24,945 INFO L290 TraceCheckUtils]: 1: Hoare triple {96#true} assume test_~splverifierCounter~0#1 < 4; {96#true} is VALID [2022-02-21 04:18:24,946 INFO L290 TraceCheckUtils]: 2: Hoare triple {96#true} test_~tmp~2#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; {96#true} is VALID [2022-02-21 04:18:24,946 INFO L290 TraceCheckUtils]: 3: Hoare triple {96#true} assume !(0 != test_~tmp~2#1); {96#true} is VALID [2022-02-21 04:18:24,946 INFO L290 TraceCheckUtils]: 4: Hoare triple {96#true} test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; {96#true} is VALID [2022-02-21 04:18:24,946 INFO L290 TraceCheckUtils]: 5: Hoare triple {96#true} assume !(0 != test_~tmp___0~1#1); {96#true} is VALID [2022-02-21 04:18:24,947 INFO L290 TraceCheckUtils]: 6: Hoare triple {96#true} test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; {96#true} is VALID [2022-02-21 04:18:24,948 INFO L290 TraceCheckUtils]: 7: Hoare triple {96#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {98#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:24,948 INFO L290 TraceCheckUtils]: 8: Hoare triple {98#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {98#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:24,949 INFO L290 TraceCheckUtils]: 9: Hoare triple {98#(<= 1 ~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~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; {98#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:24,949 INFO L290 TraceCheckUtils]: 10: Hoare triple {98#(<= 1 ~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; {98#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:24,950 INFO L290 TraceCheckUtils]: 11: Hoare triple {98#(<= 1 ~systemActive~0)} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {98#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:24,950 INFO L290 TraceCheckUtils]: 12: Hoare triple {98#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {98#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:24,951 INFO L290 TraceCheckUtils]: 13: Hoare triple {98#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {97#false} is VALID [2022-02-21 04:18:24,952 INFO L290 TraceCheckUtils]: 14: Hoare triple {97#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~3#1;havoc getWaterLevel_~retValue_acc~3#1;getWaterLevel_~retValue_acc~3#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~3#1; {97#false} is VALID [2022-02-21 04:18:24,952 INFO L290 TraceCheckUtils]: 15: Hoare triple {97#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; {97#false} is VALID [2022-02-21 04:18:24,952 INFO L290 TraceCheckUtils]: 16: Hoare triple {97#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); {97#false} is VALID [2022-02-21 04:18:24,953 INFO L290 TraceCheckUtils]: 17: Hoare triple {97#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {97#false} is VALID [2022-02-21 04:18:24,953 INFO L290 TraceCheckUtils]: 18: Hoare triple {97#false} assume { :end_inline_timeShift } true; {97#false} is VALID [2022-02-21 04:18:24,955 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 04:18:24,955 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:24,955 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193219836] [2022-02-21 04:18:24,956 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193219836] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:24,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:24,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:24,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718668099] [2022-02-21 04:18:24,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:24,966 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:24,967 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:24,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:24,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:24,995 INFO L87 Difference]: Start difference. First operand has 90 states, 89 states have (on average 1.3595505617977528) internal successors, (121), 89 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:25,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:25,247 INFO L93 Difference]: Finished difference Result 164 states and 208 transitions. [2022-02-21 04:18:25,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:25,250 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:25,268 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:25,273 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 164 states and 208 transitions. [2022-02-21 04:18:25,290 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 104 [2022-02-21 04:18:25,296 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 164 states to 144 states and 187 transitions. [2022-02-21 04:18:25,297 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 144 [2022-02-21 04:18:25,297 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 144 [2022-02-21 04:18:25,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 144 states and 187 transitions. [2022-02-21 04:18:25,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:25,298 INFO L681 BuchiCegarLoop]: Abstraction has 144 states and 187 transitions. [2022-02-21 04:18:25,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states and 187 transitions. [2022-02-21 04:18:25,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 141. [2022-02-21 04:18:25,331 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:25,332 INFO L82 GeneralOperation]: Start isEquivalent. First operand 144 states and 187 transitions. Second operand has 141 states, 141 states have (on average 1.297872340425532) internal successors, (183), 140 states have internal predecessors, (183), 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 04:18:25,333 INFO L74 IsIncluded]: Start isIncluded. First operand 144 states and 187 transitions. Second operand has 141 states, 141 states have (on average 1.297872340425532) internal successors, (183), 140 states have internal predecessors, (183), 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 04:18:25,335 INFO L87 Difference]: Start difference. First operand 144 states and 187 transitions. Second operand has 141 states, 141 states have (on average 1.297872340425532) internal successors, (183), 140 states have internal predecessors, (183), 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 04:18:25,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:25,342 INFO L93 Difference]: Finished difference Result 144 states and 187 transitions. [2022-02-21 04:18:25,343 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 187 transitions. [2022-02-21 04:18:25,345 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:25,346 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:25,347 INFO L74 IsIncluded]: Start isIncluded. First operand has 141 states, 141 states have (on average 1.297872340425532) internal successors, (183), 140 states have internal predecessors, (183), 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 144 states and 187 transitions. [2022-02-21 04:18:25,348 INFO L87 Difference]: Start difference. First operand has 141 states, 141 states have (on average 1.297872340425532) internal successors, (183), 140 states have internal predecessors, (183), 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 144 states and 187 transitions. [2022-02-21 04:18:25,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:25,355 INFO L93 Difference]: Finished difference Result 144 states and 187 transitions. [2022-02-21 04:18:25,355 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 187 transitions. [2022-02-21 04:18:25,358 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:25,359 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:25,359 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:25,360 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:25,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 141 states have (on average 1.297872340425532) internal successors, (183), 140 states have internal predecessors, (183), 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 04:18:25,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 183 transitions. [2022-02-21 04:18:25,369 INFO L704 BuchiCegarLoop]: Abstraction has 141 states and 183 transitions. [2022-02-21 04:18:25,369 INFO L587 BuchiCegarLoop]: Abstraction has 141 states and 183 transitions. [2022-02-21 04:18:25,369 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:25,369 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 141 states and 183 transitions. [2022-02-21 04:18:25,372 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 101 [2022-02-21 04:18:25,373 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:25,373 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:25,373 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:25,373 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] [2022-02-21 04:18:25,374 INFO L791 eck$LassoCheckResult]: Stem: 344#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 325#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~4#1, main_~tmp~3#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 326#L911 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 304#L904 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 290#L919 main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 291#L509 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 332#L482 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 321#L59 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 322#L355-2 [2022-02-21 04:18:25,374 INFO L793 eck$LassoCheckResult]: Loop: 322#L355-2 assume !false; 362#L356 assume test_~splverifierCounter~0#1 < 4; 363#L357 test_~tmp~2#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 402#L365 assume !(0 != test_~tmp~2#1); 352#L365-2 test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 281#L375 assume !(0 != test_~tmp___0~1#1); 283#L375-2 test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 327#L385 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 376#L393 assume !(0 != test_~tmp___1~0#1); 317#L393-2 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~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 375#L198 __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; 288#L69 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 289#L121 assume !(0 != ~pumpRunning~0); 270#L121-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 271#L145 assume { :end_inline_processEnvironment } true; 300#L128-1 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~3#1;havoc getWaterLevel_~retValue_acc~3#1;getWaterLevel_~retValue_acc~3#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~3#1; 301#L339 __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; 276#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 278#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 338#L138 assume { :end_inline_timeShift } true; 322#L355-2 [2022-02-21 04:18:25,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:25,376 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:18:25,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:25,376 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352759599] [2022-02-21 04:18:25,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:25,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:25,411 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:25,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:25,428 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:25,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:25,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1994764373, now seen corresponding path program 1 times [2022-02-21 04:18:25,429 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:25,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478701990] [2022-02-21 04:18:25,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:25,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:25,435 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:25,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:25,441 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:25,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:25,442 INFO L85 PathProgramCache]: Analyzing trace with hash -622238700, now seen corresponding path program 1 times [2022-02-21 04:18:25,458 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:25,458 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631738418] [2022-02-21 04:18:25,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:25,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:25,509 INFO L290 TraceCheckUtils]: 0: Hoare triple {699#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {701#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:25,510 INFO L290 TraceCheckUtils]: 1: Hoare triple {701#(= ~waterLevel~0 1)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~4#1, main_~tmp~3#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; {701#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:25,510 INFO L290 TraceCheckUtils]: 2: Hoare triple {701#(= ~waterLevel~0 1)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {701#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:25,511 INFO L290 TraceCheckUtils]: 3: Hoare triple {701#(= ~waterLevel~0 1)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; {701#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:25,511 INFO L290 TraceCheckUtils]: 4: Hoare triple {701#(= ~waterLevel~0 1)} main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret26#1;havoc main_#t~ret26#1; {701#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:25,511 INFO L290 TraceCheckUtils]: 5: Hoare triple {701#(= ~waterLevel~0 1)} assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; {701#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:25,512 INFO L290 TraceCheckUtils]: 6: Hoare triple {701#(= ~waterLevel~0 1)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; {701#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:25,512 INFO L290 TraceCheckUtils]: 7: Hoare triple {701#(= ~waterLevel~0 1)} assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {701#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:25,513 INFO L290 TraceCheckUtils]: 8: Hoare triple {701#(= ~waterLevel~0 1)} assume !false; {701#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:25,513 INFO L290 TraceCheckUtils]: 9: Hoare triple {701#(= ~waterLevel~0 1)} assume test_~splverifierCounter~0#1 < 4; {701#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:25,513 INFO L290 TraceCheckUtils]: 10: Hoare triple {701#(= ~waterLevel~0 1)} test_~tmp~2#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; {701#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:25,514 INFO L290 TraceCheckUtils]: 11: Hoare triple {701#(= ~waterLevel~0 1)} assume !(0 != test_~tmp~2#1); {701#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:25,514 INFO L290 TraceCheckUtils]: 12: Hoare triple {701#(= ~waterLevel~0 1)} test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; {701#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:25,515 INFO L290 TraceCheckUtils]: 13: Hoare triple {701#(= ~waterLevel~0 1)} assume !(0 != test_~tmp___0~1#1); {701#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:25,515 INFO L290 TraceCheckUtils]: 14: Hoare triple {701#(= ~waterLevel~0 1)} test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; {701#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:25,515 INFO L290 TraceCheckUtils]: 15: Hoare triple {701#(= ~waterLevel~0 1)} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; {701#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:25,516 INFO L290 TraceCheckUtils]: 16: Hoare triple {701#(= ~waterLevel~0 1)} assume !(0 != test_~tmp___1~0#1); {701#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:25,516 INFO L290 TraceCheckUtils]: 17: Hoare triple {701#(= ~waterLevel~0 1)} 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~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; {701#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:25,516 INFO L290 TraceCheckUtils]: 18: Hoare triple {701#(= ~waterLevel~0 1)} __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; {701#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:25,517 INFO L290 TraceCheckUtils]: 19: Hoare triple {701#(= ~waterLevel~0 1)} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {701#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:25,517 INFO L290 TraceCheckUtils]: 20: Hoare triple {701#(= ~waterLevel~0 1)} assume !(0 != ~pumpRunning~0); {701#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:25,518 INFO L290 TraceCheckUtils]: 21: Hoare triple {701#(= ~waterLevel~0 1)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; {701#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:25,518 INFO L290 TraceCheckUtils]: 22: Hoare triple {701#(= ~waterLevel~0 1)} assume { :end_inline_processEnvironment } true; {701#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:25,518 INFO L290 TraceCheckUtils]: 23: Hoare triple {701#(= ~waterLevel~0 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~3#1;havoc getWaterLevel_~retValue_acc~3#1;getWaterLevel_~retValue_acc~3#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~3#1; {702#(= |ULTIMATE.start_getWaterLevel_#res#1| 1)} is VALID [2022-02-21 04:18:25,519 INFO L290 TraceCheckUtils]: 24: Hoare triple {702#(= |ULTIMATE.start_getWaterLevel_#res#1| 1)} __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; {703#(= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~0#1| 1)} is VALID [2022-02-21 04:18:25,520 INFO L290 TraceCheckUtils]: 25: Hoare triple {703#(= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~0#1| 1)} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); {700#false} is VALID [2022-02-21 04:18:25,520 INFO L290 TraceCheckUtils]: 26: Hoare triple {700#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {700#false} is VALID [2022-02-21 04:18:25,520 INFO L290 TraceCheckUtils]: 27: Hoare triple {700#false} assume { :end_inline_timeShift } true; {700#false} is VALID [2022-02-21 04:18:25,520 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 04:18:25,521 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:25,521 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631738418] [2022-02-21 04:18:25,521 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631738418] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:25,521 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:25,521 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:18:25,522 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122960565] [2022-02-21 04:18:25,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:25,636 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:25,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:25,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:25,637 INFO L87 Difference]: Start difference. First operand 141 states and 183 transitions. cyclomatic complexity: 45 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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 04:18:26,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:26,021 INFO L93 Difference]: Finished difference Result 362 states and 459 transitions. [2022-02-21 04:18:26,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:26,021 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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 04:18:26,046 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:26,047 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 362 states and 459 transitions. [2022-02-21 04:18:26,060 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 190 [2022-02-21 04:18:26,086 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 362 states to 362 states and 459 transitions. [2022-02-21 04:18:26,086 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 362 [2022-02-21 04:18:26,087 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 362 [2022-02-21 04:18:26,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 362 states and 459 transitions. [2022-02-21 04:18:26,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:26,088 INFO L681 BuchiCegarLoop]: Abstraction has 362 states and 459 transitions. [2022-02-21 04:18:26,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states and 459 transitions. [2022-02-21 04:18:26,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 266. [2022-02-21 04:18:26,098 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:26,099 INFO L82 GeneralOperation]: Start isEquivalent. First operand 362 states and 459 transitions. Second operand has 266 states, 266 states have (on average 1.263157894736842) internal successors, (336), 265 states have internal predecessors, (336), 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 04:18:26,100 INFO L74 IsIncluded]: Start isIncluded. First operand 362 states and 459 transitions. Second operand has 266 states, 266 states have (on average 1.263157894736842) internal successors, (336), 265 states have internal predecessors, (336), 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 04:18:26,100 INFO L87 Difference]: Start difference. First operand 362 states and 459 transitions. Second operand has 266 states, 266 states have (on average 1.263157894736842) internal successors, (336), 265 states have internal predecessors, (336), 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 04:18:26,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:26,120 INFO L93 Difference]: Finished difference Result 362 states and 459 transitions. [2022-02-21 04:18:26,120 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 459 transitions. [2022-02-21 04:18:26,122 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:26,122 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:26,123 INFO L74 IsIncluded]: Start isIncluded. First operand has 266 states, 266 states have (on average 1.263157894736842) internal successors, (336), 265 states have internal predecessors, (336), 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 362 states and 459 transitions. [2022-02-21 04:18:26,123 INFO L87 Difference]: Start difference. First operand has 266 states, 266 states have (on average 1.263157894736842) internal successors, (336), 265 states have internal predecessors, (336), 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 362 states and 459 transitions. [2022-02-21 04:18:26,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:26,134 INFO L93 Difference]: Finished difference Result 362 states and 459 transitions. [2022-02-21 04:18:26,134 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 459 transitions. [2022-02-21 04:18:26,135 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:26,135 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:26,135 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:26,135 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:26,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 266 states have (on average 1.263157894736842) internal successors, (336), 265 states have internal predecessors, (336), 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 04:18:26,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 336 transitions. [2022-02-21 04:18:26,143 INFO L704 BuchiCegarLoop]: Abstraction has 266 states and 336 transitions. [2022-02-21 04:18:26,143 INFO L587 BuchiCegarLoop]: Abstraction has 266 states and 336 transitions. [2022-02-21 04:18:26,143 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:26,143 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 266 states and 336 transitions. [2022-02-21 04:18:26,144 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 190 [2022-02-21 04:18:26,145 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:26,145 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:26,145 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:26,145 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, 1, 1, 1] [2022-02-21 04:18:26,145 INFO L791 eck$LassoCheckResult]: Stem: 1174#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1149#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~4#1, main_~tmp~3#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 1150#L911 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1118#L904 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 1101#L919 main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 1102#L509 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1157#L482 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1142#L59 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1143#L355-2 [2022-02-21 04:18:26,148 INFO L793 eck$LassoCheckResult]: Loop: 1143#L355-2 assume !false; 1252#L356 assume test_~splverifierCounter~0#1 < 4; 1251#L357 test_~tmp~2#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 1250#L365 assume !(0 != test_~tmp~2#1); 1249#L365-2 test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 1247#L375 assume !(0 != test_~tmp___0~1#1); 1245#L375-2 test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 1244#L385 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1232#L258 assume { :end_inline_startSystem } true; 1243#L393-2 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~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 1271#L198 __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; 1270#L69 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1268#L121 assume !(0 != ~pumpRunning~0); 1266#L121-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 1263#L145 assume { :end_inline_processEnvironment } true; 1261#L128-1 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~3#1;havoc getWaterLevel_~retValue_acc~3#1;getWaterLevel_~retValue_acc~3#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~3#1; 1260#L339 __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; 1259#L80 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 1258#L198-1 __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; 1257#L84 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 1255#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1254#L138 assume { :end_inline_timeShift } true; 1143#L355-2 [2022-02-21 04:18:26,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:26,149 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:18:26,149 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:26,149 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961466578] [2022-02-21 04:18:26,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:26,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:26,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:26,161 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:26,172 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:26,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:26,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1637600404, now seen corresponding path program 1 times [2022-02-21 04:18:26,172 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:26,172 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351354729] [2022-02-21 04:18:26,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:26,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:26,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:26,177 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:26,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:26,181 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:26,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:26,181 INFO L85 PathProgramCache]: Analyzing trace with hash 2079812285, now seen corresponding path program 1 times [2022-02-21 04:18:26,181 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:26,181 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194153887] [2022-02-21 04:18:26,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:26,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:26,191 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:26,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:26,203 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:29,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:29 BoogieIcfgContainer [2022-02-21 04:18:29,265 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:29,266 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:29,266 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:29,266 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:29,267 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:24" (3/4) ... [2022-02-21 04:18:29,269 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:29,307 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:29,308 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:29,309 INFO L158 Benchmark]: Toolchain (without parser) took 5934.34ms. Allocated memory was 94.4MB in the beginning and 163.6MB in the end (delta: 69.2MB). Free memory was 54.8MB in the beginning and 88.1MB in the end (delta: -33.3MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. [2022-02-21 04:18:29,309 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 94.4MB. Free memory was 72.0MB in the beginning and 72.0MB in the end (delta: 48.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:29,310 INFO L158 Benchmark]: CACSL2BoogieTranslator took 497.23ms. Allocated memory is still 94.4MB. Free memory was 54.6MB in the beginning and 58.4MB in the end (delta: -3.8MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2022-02-21 04:18:29,310 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.37ms. Allocated memory is still 94.4MB. Free memory was 58.4MB in the beginning and 55.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:29,310 INFO L158 Benchmark]: Boogie Preprocessor took 23.02ms. Allocated memory is still 94.4MB. Free memory was 55.3MB in the beginning and 53.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:29,311 INFO L158 Benchmark]: RCFGBuilder took 489.16ms. Allocated memory is still 94.4MB. Free memory was 53.4MB in the beginning and 35.9MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-02-21 04:18:29,311 INFO L158 Benchmark]: BuchiAutomizer took 4810.19ms. Allocated memory was 113.2MB in the beginning and 163.6MB in the end (delta: 50.3MB). Free memory was 89.9MB in the beginning and 90.2MB in the end (delta: -322.9kB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. [2022-02-21 04:18:29,311 INFO L158 Benchmark]: Witness Printer took 41.84ms. Allocated memory is still 163.6MB. Free memory was 90.2MB in the beginning and 88.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:29,313 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 0.36ms. Allocated memory is still 94.4MB. Free memory was 72.0MB in the beginning and 72.0MB in the end (delta: 48.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 497.23ms. Allocated memory is still 94.4MB. Free memory was 54.6MB in the beginning and 58.4MB in the end (delta: -3.8MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.37ms. Allocated memory is still 94.4MB. Free memory was 58.4MB in the beginning and 55.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.02ms. Allocated memory is still 94.4MB. Free memory was 55.3MB in the beginning and 53.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 489.16ms. Allocated memory is still 94.4MB. Free memory was 53.4MB in the beginning and 35.9MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 4810.19ms. Allocated memory was 113.2MB in the beginning and 163.6MB in the end (delta: 50.3MB). Free memory was 89.9MB in the beginning and 90.2MB in the end (delta: -322.9kB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. * Witness Printer took 41.84ms. Allocated memory is still 163.6MB. Free memory was 90.2MB in the beginning and 88.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 266 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 99 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 266 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 379 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 379 mSDsluCounter, 627 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 384 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 75 IncrementalHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 243 mSDtfsCounter, 75 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 355]: 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, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@282893de=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4610de10=0, methaneLevelCritical=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75f40642=0, \result=1, tmp=1, retValue_acc=0, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a5c3d9=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1fd85a6c=0, tmp=1, cleanupTimeShifts=4, switchedOnBeforeTS=0, tmp=0, \result=0, tmp___0=0, head=0, retValue_acc=1, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ec9bff4=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66e5aa6f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7564b22f=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 355]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int switchedOnBeforeTS ; [L111] int pumpRunning = 0; [L112] int systemActive = 1; [L264] int waterLevel = 1; [L265] int methaneLevelCritical = 0; [L423] int cleanupTimeShifts = 4; [L692] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L500] int retValue_acc ; [L501] int tmp ; [L505] FCALL select_helpers() [L506] FCALL select_features() [L507] CALL, EXPR valid_product() [L915] int retValue_acc ; [L918] retValue_acc = 1 [L919] return (retValue_acc); [L507] RET, EXPR valid_product() [L507] tmp = valid_product() [L509] COND TRUE \read(tmp) [L511] FCALL setup() [L512] CALL runTest() [L490] CALL __utac_acc__Specification5_spec__1() [L58] switchedOnBeforeTS = 0 [L490] RET __utac_acc__Specification5_spec__1() [L491] CALL test() [L346] int splverifierCounter ; [L347] int tmp ; [L348] int tmp___0 ; [L349] int tmp___1 ; [L350] int tmp___2 ; [L353] splverifierCounter = 0 Loop: [L355] COND TRUE 1 [L357] COND TRUE splverifierCounter < 4 [L363] tmp = __VERIFIER_nondet_int() [L365] COND FALSE !(\read(tmp)) [L373] tmp___0 = __VERIFIER_nondet_int() [L375] COND FALSE !(\read(tmp___0)) [L383] tmp___2 = __VERIFIER_nondet_int() [L385] COND TRUE \read(tmp___2) [L387] CALL startSystem() [L257] systemActive = 1 [L387] RET startSystem() [L402] CALL timeShift() [L119] CALL __utac_acc__Specification5_spec__2() [L67] CALL, EXPR isPumpRunning() [L194] int retValue_acc ; [L197] retValue_acc = pumpRunning [L198] return (retValue_acc); [L67] RET, EXPR isPumpRunning() [L67] switchedOnBeforeTS = isPumpRunning() [L119] RET __utac_acc__Specification5_spec__2() [L121] COND FALSE !(\read(pumpRunning)) [L128] COND TRUE \read(systemActive) [L130] FCALL processEnvironment() [L136] CALL __utac_acc__Specification5_spec__3() [L73] int tmp ; [L74] int tmp___0 ; [L78] CALL, EXPR getWaterLevel() [L335] int retValue_acc ; [L338] retValue_acc = waterLevel [L339] return (retValue_acc); [L78] RET, EXPR getWaterLevel() [L78] tmp = getWaterLevel() [L80] COND TRUE tmp != 2 [L82] CALL, EXPR isPumpRunning() [L194] int retValue_acc ; [L197] retValue_acc = pumpRunning [L198] return (retValue_acc); [L82] RET, EXPR isPumpRunning() [L82] tmp___0 = isPumpRunning() [L84] COND FALSE !(\read(tmp___0)) [L136] RET __utac_acc__Specification5_spec__3() [L402] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:29,360 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)