./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product51.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_spec2_product51.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 242c9b24ea8c293cca4af0028144a97f9048375edcd4379fb21e62564563d3d5 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:16:23,954 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:16:23,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:16:24,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:16:24,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:16:24,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:16:24,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:16:24,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:16:24,022 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:16:24,028 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:16:24,030 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:16:24,031 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:16:24,032 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:16:24,035 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:16:24,036 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:16:24,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:16:24,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:16:24,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:16:24,044 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:16:24,050 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:16:24,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:16:24,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:16:24,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:16:24,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:16:24,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:16:24,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:16:24,060 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:16:24,061 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:16:24,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:16:24,063 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:16:24,063 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:16:24,064 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:16:24,066 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:16:24,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:16:24,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:16:24,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:16:24,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:16:24,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:16:24,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:16:24,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:16:24,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:16:24,071 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:16:24,103 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:16:24,103 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:16:24,104 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:16:24,104 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:16:24,105 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:16:24,105 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:16:24,105 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:16:24,106 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:16:24,106 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:16:24,106 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:16:24,107 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:16:24,107 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:16:24,108 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:16:24,108 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:16:24,108 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:16:24,108 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:16:24,108 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:16:24,109 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:16:24,109 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:16:24,109 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:16:24,109 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:16:24,109 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:16:24,110 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:16:24,110 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:16:24,110 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:16:24,110 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:16:24,111 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:16:24,111 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:16:24,111 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:16:24,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:16:24,112 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:16:24,113 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:16:24,113 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 242c9b24ea8c293cca4af0028144a97f9048375edcd4379fb21e62564563d3d5 [2022-02-21 04:16:24,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:16:24,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:16:24,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:16:24,338 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:16:24,339 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:16:24,339 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c [2022-02-21 04:16:24,393 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ff11df07/dfc069f21c2340e49d92b7a2bde217bc/FLAG32c308f27 [2022-02-21 04:16:24,788 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:16:24,788 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c [2022-02-21 04:16:24,798 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ff11df07/dfc069f21c2340e49d92b7a2bde217bc/FLAG32c308f27 [2022-02-21 04:16:24,809 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ff11df07/dfc069f21c2340e49d92b7a2bde217bc [2022-02-21 04:16:24,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:16:24,812 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:16:24,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:24,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:16:24,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:16:24,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:24" (1/1) ... [2022-02-21 04:16:24,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fd46e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:24, skipping insertion in model container [2022-02-21 04:16:24,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:24" (1/1) ... [2022-02-21 04:16:24,823 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:16:24,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:16:25,049 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_spec2_product51.cil.c[9329,9342] [2022-02-21 04:16:25,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:25,088 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:16:25,115 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_spec2_product51.cil.c[9329,9342] [2022-02-21 04:16:25,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:25,149 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:16:25,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:25 WrapperNode [2022-02-21 04:16:25,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:25,150 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:25,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:16:25,151 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:16:25,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:25" (1/1) ... [2022-02-21 04:16:25,173 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:25" (1/1) ... [2022-02-21 04:16:25,227 INFO L137 Inliner]: procedures = 57, calls = 157, calls flagged for inlining = 54, calls inlined = 80, statements flattened = 622 [2022-02-21 04:16:25,227 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:25,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:16:25,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:16:25,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:16:25,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:25" (1/1) ... [2022-02-21 04:16:25,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:25" (1/1) ... [2022-02-21 04:16:25,246 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:25" (1/1) ... [2022-02-21 04:16:25,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:25" (1/1) ... [2022-02-21 04:16:25,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:25" (1/1) ... [2022-02-21 04:16:25,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:25" (1/1) ... [2022-02-21 04:16:25,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:25" (1/1) ... [2022-02-21 04:16:25,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:16:25,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:16:25,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:16:25,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:16:25,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:25" (1/1) ... [2022-02-21 04:16:25,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:16:25,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:16:25,302 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 04:16:25,316 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 04:16:25,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:16:25,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:16:25,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:16:25,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:16:25,417 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:16:25,418 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:16:25,849 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:16:25,855 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:16:25,855 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:16:25,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:25 BoogieIcfgContainer [2022-02-21 04:16:25,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:16:25,858 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:16:25,858 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:16:25,863 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:16:25,864 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:25,864 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:16:24" (1/3) ... [2022-02-21 04:16:25,864 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@297df1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:25, skipping insertion in model container [2022-02-21 04:16:25,864 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:25,865 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:25" (2/3) ... [2022-02-21 04:16:25,865 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@297df1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:25, skipping insertion in model container [2022-02-21 04:16:25,865 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:25,865 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:25" (3/3) ... [2022-02-21 04:16:25,866 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product51.cil.c [2022-02-21 04:16:25,907 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:16:25,908 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:16:25,908 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:16:25,908 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:16:25,908 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:16:25,908 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:16:25,908 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:16:25,908 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:16:25,931 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 170 states, 169 states have (on average 1.3846153846153846) internal successors, (234), 169 states have internal predecessors, (234), 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 04:16:25,996 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2022-02-21 04:16:25,997 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:25,997 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:26,002 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:26,002 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:26,002 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:16:26,006 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 170 states, 169 states have (on average 1.3846153846153846) internal successors, (234), 169 states have internal predecessors, (234), 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 04:16:26,030 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2022-02-21 04:16:26,031 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:26,031 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:26,032 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:26,032 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:26,039 INFO L791 eck$LassoCheckResult]: Stem: 158#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 57#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~10#1, main_~tmp~6#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 162#L409true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 114#L402true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 56#L417true main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 100#L609true assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 99#L585true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 88#L351true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 52#L65-2true [2022-02-21 04:16:26,040 INFO L793 eck$LassoCheckResult]: Loop: 52#L65-2true assume !false; 46#L66true assume test_~splverifierCounter~0#1 < 4; 157#L67true test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 82#L75true assume !(0 != test_~tmp~0#1); 155#L75-2true test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 48#L85true assume !(0 != test_~tmp___0~0#1); 8#L85-2true test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 118#L95true assume 0 != test_~tmp___2~0#1; 111#L101-2true assume { :begin_inline_timeShift } true; 43#L139true assume !(0 != ~pumpRunning~0); 28#L139-2true assume !(0 != ~systemActive~0); 31#L146-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret21#1, __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 168#L466true __utac_acc__Specification2_spec__2_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret21#1;havoc __utac_acc__Specification2_spec__2_#t~ret21#1; 165#L362true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 37#L362-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 166#L156true assume { :end_inline_timeShift } true; 52#L65-2true [2022-02-21 04:16:26,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:26,046 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:16:26,055 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:26,055 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640417695] [2022-02-21 04:16:26,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:26,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:26,171 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:26,222 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:26,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:26,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1250870358, now seen corresponding path program 1 times [2022-02-21 04:16:26,224 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:26,225 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079169721] [2022-02-21 04:16:26,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:26,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:26,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:26,243 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:26,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:26,254 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:26,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:26,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1413157741, now seen corresponding path program 1 times [2022-02-21 04:16:26,256 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:26,257 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449359609] [2022-02-21 04:16:26,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:26,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:26,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:26,400 INFO L290 TraceCheckUtils]: 0: Hoare triple {178#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {180#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:26,401 INFO L290 TraceCheckUtils]: 1: Hoare triple {180#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~10#1, main_~tmp~6#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; {180#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:26,401 INFO L290 TraceCheckUtils]: 2: Hoare triple {180#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {180#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:26,402 INFO L290 TraceCheckUtils]: 3: Hoare triple {180#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; {181#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:16:26,402 INFO L290 TraceCheckUtils]: 4: Hoare triple {181#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret29#1;havoc main_#t~ret29#1; {182#(= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0)} is VALID [2022-02-21 04:16:26,403 INFO L290 TraceCheckUtils]: 5: Hoare triple {182#(= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0)} assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; {183#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:26,403 INFO L290 TraceCheckUtils]: 6: Hoare triple {183#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; {183#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:26,404 INFO L290 TraceCheckUtils]: 7: Hoare triple {183#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {183#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:26,405 INFO L290 TraceCheckUtils]: 8: Hoare triple {183#(not (= 0 ~systemActive~0))} assume !false; {183#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:26,406 INFO L290 TraceCheckUtils]: 9: Hoare triple {183#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {183#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:26,406 INFO L290 TraceCheckUtils]: 10: Hoare triple {183#(not (= 0 ~systemActive~0))} test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; {183#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:26,407 INFO L290 TraceCheckUtils]: 11: Hoare triple {183#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~0#1); {183#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:26,408 INFO L290 TraceCheckUtils]: 12: Hoare triple {183#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {183#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:26,408 INFO L290 TraceCheckUtils]: 13: Hoare triple {183#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {183#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:26,409 INFO L290 TraceCheckUtils]: 14: Hoare triple {183#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {183#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:26,409 INFO L290 TraceCheckUtils]: 15: Hoare triple {183#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {183#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:26,410 INFO L290 TraceCheckUtils]: 16: Hoare triple {183#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {183#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:26,410 INFO L290 TraceCheckUtils]: 17: Hoare triple {183#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {183#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:26,411 INFO L290 TraceCheckUtils]: 18: Hoare triple {183#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {179#false} is VALID [2022-02-21 04:16:26,412 INFO L290 TraceCheckUtils]: 19: Hoare triple {179#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret21#1, __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; {179#false} is VALID [2022-02-21 04:16:26,412 INFO L290 TraceCheckUtils]: 20: Hoare triple {179#false} __utac_acc__Specification2_spec__2_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret21#1;havoc __utac_acc__Specification2_spec__2_#t~ret21#1; {179#false} is VALID [2022-02-21 04:16:26,412 INFO L290 TraceCheckUtils]: 21: Hoare triple {179#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; {179#false} is VALID [2022-02-21 04:16:26,412 INFO L290 TraceCheckUtils]: 22: Hoare triple {179#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {179#false} is VALID [2022-02-21 04:16:26,413 INFO L290 TraceCheckUtils]: 23: Hoare triple {179#false} assume { :end_inline_timeShift } true; {179#false} is VALID [2022-02-21 04:16:26,415 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 04:16:26,415 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:26,416 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449359609] [2022-02-21 04:16:26,416 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449359609] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:26,417 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:26,417 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:16:26,417 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181152727] [2022-02-21 04:16:26,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:26,540 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:26,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:16:26,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:16:26,566 INFO L87 Difference]: Start difference. First operand has 170 states, 169 states have (on average 1.3846153846153846) internal successors, (234), 169 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:27,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:27,391 INFO L93 Difference]: Finished difference Result 393 states and 522 transitions. [2022-02-21 04:16:27,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:16:27,393 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:27,416 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:27,422 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 393 states and 522 transitions. [2022-02-21 04:16:27,436 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 253 [2022-02-21 04:16:27,450 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 393 states to 363 states and 492 transitions. [2022-02-21 04:16:27,451 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 363 [2022-02-21 04:16:27,454 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 363 [2022-02-21 04:16:27,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 363 states and 492 transitions. [2022-02-21 04:16:27,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:27,457 INFO L681 BuchiCegarLoop]: Abstraction has 363 states and 492 transitions. [2022-02-21 04:16:27,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states and 492 transitions. [2022-02-21 04:16:27,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 212. [2022-02-21 04:16:27,491 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:27,493 INFO L82 GeneralOperation]: Start isEquivalent. First operand 363 states and 492 transitions. Second operand has 212 states, 212 states have (on average 1.3537735849056605) internal successors, (287), 211 states have internal predecessors, (287), 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 04:16:27,494 INFO L74 IsIncluded]: Start isIncluded. First operand 363 states and 492 transitions. Second operand has 212 states, 212 states have (on average 1.3537735849056605) internal successors, (287), 211 states have internal predecessors, (287), 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 04:16:27,496 INFO L87 Difference]: Start difference. First operand 363 states and 492 transitions. Second operand has 212 states, 212 states have (on average 1.3537735849056605) internal successors, (287), 211 states have internal predecessors, (287), 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 04:16:27,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:27,529 INFO L93 Difference]: Finished difference Result 363 states and 492 transitions. [2022-02-21 04:16:27,529 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 492 transitions. [2022-02-21 04:16:27,532 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:27,532 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:27,533 INFO L74 IsIncluded]: Start isIncluded. First operand has 212 states, 212 states have (on average 1.3537735849056605) internal successors, (287), 211 states have internal predecessors, (287), 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 363 states and 492 transitions. [2022-02-21 04:16:27,533 INFO L87 Difference]: Start difference. First operand has 212 states, 212 states have (on average 1.3537735849056605) internal successors, (287), 211 states have internal predecessors, (287), 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 363 states and 492 transitions. [2022-02-21 04:16:27,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:27,546 INFO L93 Difference]: Finished difference Result 363 states and 492 transitions. [2022-02-21 04:16:27,546 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 492 transitions. [2022-02-21 04:16:27,548 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:27,548 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:27,548 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:27,548 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:27,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 212 states have (on average 1.3537735849056605) internal successors, (287), 211 states have internal predecessors, (287), 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 04:16:27,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 287 transitions. [2022-02-21 04:16:27,555 INFO L704 BuchiCegarLoop]: Abstraction has 212 states and 287 transitions. [2022-02-21 04:16:27,556 INFO L587 BuchiCegarLoop]: Abstraction has 212 states and 287 transitions. [2022-02-21 04:16:27,556 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:16:27,556 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 212 states and 287 transitions. [2022-02-21 04:16:27,557 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 148 [2022-02-21 04:16:27,557 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:27,557 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:27,558 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:27,558 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] [2022-02-21 04:16:27,558 INFO L791 eck$LassoCheckResult]: Stem: 735#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 669#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~10#1, main_~tmp~6#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 670#L409 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 718#L402 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 667#L417 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 668#L609 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 703#L585 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 692#L351 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 666#L65-2 [2022-02-21 04:16:27,559 INFO L793 eck$LassoCheckResult]: Loop: 666#L65-2 assume !false; 652#L66 assume test_~splverifierCounter~0#1 < 4; 653#L67 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 686#L75 assume !(0 != test_~tmp~0#1); 687#L75-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 656#L85 assume !(0 != test_~tmp___0~0#1); 589#L85-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 590#L95 assume 0 != test_~tmp___2~0#1; 716#L101-2 assume { :begin_inline_timeShift } true; 647#L139 assume !(0 != ~pumpRunning~0); 624#L139-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 625#L197 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 698#L171-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 707#L163-3 assume { :end_inline_processEnvironment__wrappee__base } true; 596#L171-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 610#L197-1 assume { :end_inline_processEnvironment } true; 611#L146-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret21#1, __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 629#L466 __utac_acc__Specification2_spec__2_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret21#1;havoc __utac_acc__Specification2_spec__2_#t~ret21#1; 737#L362 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 617#L362-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 640#L156 assume { :end_inline_timeShift } true; 666#L65-2 [2022-02-21 04:16:27,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:27,559 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:16:27,560 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:27,560 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438245421] [2022-02-21 04:16:27,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:27,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:27,573 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:27,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:27,585 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:27,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:27,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1497844822, now seen corresponding path program 1 times [2022-02-21 04:16:27,586 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:27,586 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602686170] [2022-02-21 04:16:27,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:27,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:27,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:27,598 INFO L290 TraceCheckUtils]: 0: Hoare triple {1524#true} assume !false; {1524#true} is VALID [2022-02-21 04:16:27,598 INFO L290 TraceCheckUtils]: 1: Hoare triple {1524#true} assume test_~splverifierCounter~0#1 < 4; {1524#true} is VALID [2022-02-21 04:16:27,598 INFO L290 TraceCheckUtils]: 2: Hoare triple {1524#true} test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; {1524#true} is VALID [2022-02-21 04:16:27,598 INFO L290 TraceCheckUtils]: 3: Hoare triple {1524#true} assume !(0 != test_~tmp~0#1); {1524#true} is VALID [2022-02-21 04:16:27,599 INFO L290 TraceCheckUtils]: 4: Hoare triple {1524#true} test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {1524#true} is VALID [2022-02-21 04:16:27,599 INFO L290 TraceCheckUtils]: 5: Hoare triple {1524#true} assume !(0 != test_~tmp___0~0#1); {1524#true} is VALID [2022-02-21 04:16:27,599 INFO L290 TraceCheckUtils]: 6: Hoare triple {1524#true} test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {1524#true} is VALID [2022-02-21 04:16:27,599 INFO L290 TraceCheckUtils]: 7: Hoare triple {1524#true} assume 0 != test_~tmp___2~0#1; {1524#true} is VALID [2022-02-21 04:16:27,599 INFO L290 TraceCheckUtils]: 8: Hoare triple {1524#true} assume { :begin_inline_timeShift } true; {1524#true} is VALID [2022-02-21 04:16:27,600 INFO L290 TraceCheckUtils]: 9: Hoare triple {1524#true} assume !(0 != ~pumpRunning~0); {1526#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:27,600 INFO L290 TraceCheckUtils]: 10: Hoare triple {1526#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {1526#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:27,600 INFO L290 TraceCheckUtils]: 11: Hoare triple {1526#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; {1526#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:27,601 INFO L290 TraceCheckUtils]: 12: Hoare triple {1526#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1525#false} is VALID [2022-02-21 04:16:27,601 INFO L290 TraceCheckUtils]: 13: Hoare triple {1525#false} assume { :end_inline_processEnvironment__wrappee__base } true; {1525#false} is VALID [2022-02-21 04:16:27,601 INFO L290 TraceCheckUtils]: 14: Hoare triple {1525#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {1525#false} is VALID [2022-02-21 04:16:27,601 INFO L290 TraceCheckUtils]: 15: Hoare triple {1525#false} assume { :end_inline_processEnvironment } true; {1525#false} is VALID [2022-02-21 04:16:27,601 INFO L290 TraceCheckUtils]: 16: Hoare triple {1525#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret21#1, __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; {1525#false} is VALID [2022-02-21 04:16:27,602 INFO L290 TraceCheckUtils]: 17: Hoare triple {1525#false} __utac_acc__Specification2_spec__2_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret21#1;havoc __utac_acc__Specification2_spec__2_#t~ret21#1; {1525#false} is VALID [2022-02-21 04:16:27,602 INFO L290 TraceCheckUtils]: 18: Hoare triple {1525#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; {1525#false} is VALID [2022-02-21 04:16:27,602 INFO L290 TraceCheckUtils]: 19: Hoare triple {1525#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {1525#false} is VALID [2022-02-21 04:16:27,602 INFO L290 TraceCheckUtils]: 20: Hoare triple {1525#false} assume { :end_inline_timeShift } true; {1525#false} is VALID [2022-02-21 04:16:27,602 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 04:16:27,603 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:27,603 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602686170] [2022-02-21 04:16:27,603 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602686170] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:27,603 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:27,603 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:16:27,603 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352465155] [2022-02-21 04:16:27,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:27,604 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:16:27,604 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:27,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:16:27,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:16:27,605 INFO L87 Difference]: Start difference. First operand 212 states and 287 transitions. cyclomatic complexity: 78 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 04:16:27,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:27,771 INFO L93 Difference]: Finished difference Result 265 states and 344 transitions. [2022-02-21 04:16:27,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:16:27,772 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 04:16:27,783 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:27,784 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 265 states and 344 transitions. [2022-02-21 04:16:27,789 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 189 [2022-02-21 04:16:27,793 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 265 states to 265 states and 344 transitions. [2022-02-21 04:16:27,794 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 265 [2022-02-21 04:16:27,794 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 265 [2022-02-21 04:16:27,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 265 states and 344 transitions. [2022-02-21 04:16:27,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:27,795 INFO L681 BuchiCegarLoop]: Abstraction has 265 states and 344 transitions. [2022-02-21 04:16:27,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states and 344 transitions. [2022-02-21 04:16:27,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2022-02-21 04:16:27,800 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:27,801 INFO L82 GeneralOperation]: Start isEquivalent. First operand 265 states and 344 transitions. Second operand has 265 states, 265 states have (on average 1.2981132075471697) internal successors, (344), 264 states have internal predecessors, (344), 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 04:16:27,802 INFO L74 IsIncluded]: Start isIncluded. First operand 265 states and 344 transitions. Second operand has 265 states, 265 states have (on average 1.2981132075471697) internal successors, (344), 264 states have internal predecessors, (344), 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 04:16:27,802 INFO L87 Difference]: Start difference. First operand 265 states and 344 transitions. Second operand has 265 states, 265 states have (on average 1.2981132075471697) internal successors, (344), 264 states have internal predecessors, (344), 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 04:16:27,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:27,807 INFO L93 Difference]: Finished difference Result 265 states and 344 transitions. [2022-02-21 04:16:27,807 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 344 transitions. [2022-02-21 04:16:27,807 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:27,807 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:27,808 INFO L74 IsIncluded]: Start isIncluded. First operand has 265 states, 265 states have (on average 1.2981132075471697) internal successors, (344), 264 states have internal predecessors, (344), 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 265 states and 344 transitions. [2022-02-21 04:16:27,808 INFO L87 Difference]: Start difference. First operand has 265 states, 265 states have (on average 1.2981132075471697) internal successors, (344), 264 states have internal predecessors, (344), 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 265 states and 344 transitions. [2022-02-21 04:16:27,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:27,813 INFO L93 Difference]: Finished difference Result 265 states and 344 transitions. [2022-02-21 04:16:27,813 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 344 transitions. [2022-02-21 04:16:27,813 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:27,813 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:27,813 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:27,813 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:27,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 265 states have (on average 1.2981132075471697) internal successors, (344), 264 states have internal predecessors, (344), 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 04:16:27,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 344 transitions. [2022-02-21 04:16:27,818 INFO L704 BuchiCegarLoop]: Abstraction has 265 states and 344 transitions. [2022-02-21 04:16:27,818 INFO L587 BuchiCegarLoop]: Abstraction has 265 states and 344 transitions. [2022-02-21 04:16:27,818 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:16:27,819 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 265 states and 344 transitions. [2022-02-21 04:16:27,820 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 189 [2022-02-21 04:16:27,820 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:27,820 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:27,820 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:27,820 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:27,820 INFO L791 eck$LassoCheckResult]: Stem: 1955#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1882#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~10#1, main_~tmp~6#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 1883#L409 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1934#L402 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1880#L417 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 1881#L609 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 1918#L585 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1907#L351 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1875#L65-2 [2022-02-21 04:16:27,821 INFO L793 eck$LassoCheckResult]: Loop: 1875#L65-2 assume !false; 1864#L66 assume test_~splverifierCounter~0#1 < 4; 1865#L67 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 1901#L75 assume !(0 != test_~tmp~0#1); 1902#L75-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1869#L85 assume !(0 != test_~tmp___0~0#1); 1800#L85-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1801#L95 assume 0 != test_~tmp___2~0#1; 1929#L101-2 assume { :begin_inline_timeShift } true; 1860#L139 assume !(0 != ~pumpRunning~0); 1835#L139-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1836#L197 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 1913#L171-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1911#L506-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1905#L511-1 isHighWaterLevel_#t~ret19#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret19#1;havoc isHighWaterLevel_#t~ret19#1; 1906#L299-3 assume !(0 != isHighWaterLevel_~tmp~3#1);isHighWaterLevel_~tmp___0~1#1 := 1; 1859#L299-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1848#L305-1 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 1849#L175-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1887#L163-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1888#L171-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1821#L197-1 assume { :end_inline_processEnvironment } true; 1822#L146-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret21#1, __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 2044#L466 __utac_acc__Specification2_spec__2_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret21#1;havoc __utac_acc__Specification2_spec__2_#t~ret21#1; 2043#L362 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 1852#L362-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1853#L156 assume { :end_inline_timeShift } true; 1875#L65-2 [2022-02-21 04:16:27,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:27,821 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:16:27,821 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:27,822 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456299565] [2022-02-21 04:16:27,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:27,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:27,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:27,829 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:27,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:27,838 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:27,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:27,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1757303124, now seen corresponding path program 1 times [2022-02-21 04:16:27,839 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:27,839 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033952714] [2022-02-21 04:16:27,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:27,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:27,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:27,857 INFO L290 TraceCheckUtils]: 0: Hoare triple {2592#true} assume !false; {2592#true} is VALID [2022-02-21 04:16:27,857 INFO L290 TraceCheckUtils]: 1: Hoare triple {2592#true} assume test_~splverifierCounter~0#1 < 4; {2592#true} is VALID [2022-02-21 04:16:27,857 INFO L290 TraceCheckUtils]: 2: Hoare triple {2592#true} test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; {2592#true} is VALID [2022-02-21 04:16:27,858 INFO L290 TraceCheckUtils]: 3: Hoare triple {2592#true} assume !(0 != test_~tmp~0#1); {2592#true} is VALID [2022-02-21 04:16:27,858 INFO L290 TraceCheckUtils]: 4: Hoare triple {2592#true} test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {2592#true} is VALID [2022-02-21 04:16:27,858 INFO L290 TraceCheckUtils]: 5: Hoare triple {2592#true} assume !(0 != test_~tmp___0~0#1); {2592#true} is VALID [2022-02-21 04:16:27,858 INFO L290 TraceCheckUtils]: 6: Hoare triple {2592#true} test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {2592#true} is VALID [2022-02-21 04:16:27,858 INFO L290 TraceCheckUtils]: 7: Hoare triple {2592#true} assume 0 != test_~tmp___2~0#1; {2592#true} is VALID [2022-02-21 04:16:27,858 INFO L290 TraceCheckUtils]: 8: Hoare triple {2592#true} assume { :begin_inline_timeShift } true; {2592#true} is VALID [2022-02-21 04:16:27,859 INFO L290 TraceCheckUtils]: 9: Hoare triple {2592#true} assume !(0 != ~pumpRunning~0); {2592#true} is VALID [2022-02-21 04:16:27,859 INFO L290 TraceCheckUtils]: 10: Hoare triple {2592#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {2592#true} is VALID [2022-02-21 04:16:27,859 INFO L290 TraceCheckUtils]: 11: Hoare triple {2592#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; {2592#true} is VALID [2022-02-21 04:16:27,859 INFO L290 TraceCheckUtils]: 12: Hoare triple {2592#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; {2592#true} is VALID [2022-02-21 04:16:27,860 INFO L290 TraceCheckUtils]: 13: Hoare triple {2592#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; {2594#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 1)} is VALID [2022-02-21 04:16:27,860 INFO L290 TraceCheckUtils]: 14: Hoare triple {2594#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 1)} isHighWaterLevel_#t~ret19#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret19#1;havoc isHighWaterLevel_#t~ret19#1; {2595#(= |ULTIMATE.start_isHighWaterLevel_~tmp~3#1| 1)} is VALID [2022-02-21 04:16:27,861 INFO L290 TraceCheckUtils]: 15: Hoare triple {2595#(= |ULTIMATE.start_isHighWaterLevel_~tmp~3#1| 1)} assume !(0 != isHighWaterLevel_~tmp~3#1);isHighWaterLevel_~tmp___0~1#1 := 1; {2593#false} is VALID [2022-02-21 04:16:27,861 INFO L290 TraceCheckUtils]: 16: Hoare triple {2593#false} isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; {2593#false} is VALID [2022-02-21 04:16:27,861 INFO L290 TraceCheckUtils]: 17: Hoare triple {2593#false} processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; {2593#false} is VALID [2022-02-21 04:16:27,861 INFO L290 TraceCheckUtils]: 18: Hoare triple {2593#false} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {2593#false} is VALID [2022-02-21 04:16:27,861 INFO L290 TraceCheckUtils]: 19: Hoare triple {2593#false} assume { :end_inline_processEnvironment__wrappee__base } true; {2593#false} is VALID [2022-02-21 04:16:27,861 INFO L290 TraceCheckUtils]: 20: Hoare triple {2593#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {2593#false} is VALID [2022-02-21 04:16:27,862 INFO L290 TraceCheckUtils]: 21: Hoare triple {2593#false} assume { :end_inline_processEnvironment } true; {2593#false} is VALID [2022-02-21 04:16:27,862 INFO L290 TraceCheckUtils]: 22: Hoare triple {2593#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret21#1, __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; {2593#false} is VALID [2022-02-21 04:16:27,862 INFO L290 TraceCheckUtils]: 23: Hoare triple {2593#false} __utac_acc__Specification2_spec__2_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret21#1;havoc __utac_acc__Specification2_spec__2_#t~ret21#1; {2593#false} is VALID [2022-02-21 04:16:27,862 INFO L290 TraceCheckUtils]: 24: Hoare triple {2593#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; {2593#false} is VALID [2022-02-21 04:16:27,862 INFO L290 TraceCheckUtils]: 25: Hoare triple {2593#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {2593#false} is VALID [2022-02-21 04:16:27,862 INFO L290 TraceCheckUtils]: 26: Hoare triple {2593#false} assume { :end_inline_timeShift } true; {2593#false} is VALID [2022-02-21 04:16:27,863 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 04:16:27,863 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:27,863 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033952714] [2022-02-21 04:16:27,863 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033952714] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:27,863 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:27,864 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:16:27,864 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787837959] [2022-02-21 04:16:27,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:27,864 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:16:27,864 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:27,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-21 04:16:27,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-21 04:16:27,865 INFO L87 Difference]: Start difference. First operand 265 states and 344 transitions. cyclomatic complexity: 82 Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:28,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:28,208 INFO L93 Difference]: Finished difference Result 516 states and 662 transitions. [2022-02-21 04:16:28,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-21 04:16:28,209 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:28,223 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:28,225 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 516 states and 662 transitions. [2022-02-21 04:16:28,246 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 374 [2022-02-21 04:16:28,255 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 516 states to 516 states and 662 transitions. [2022-02-21 04:16:28,255 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 516 [2022-02-21 04:16:28,255 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 516 [2022-02-21 04:16:28,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 516 states and 662 transitions. [2022-02-21 04:16:28,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:28,256 INFO L681 BuchiCegarLoop]: Abstraction has 516 states and 662 transitions. [2022-02-21 04:16:28,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states and 662 transitions. [2022-02-21 04:16:28,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 277. [2022-02-21 04:16:28,271 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:28,272 INFO L82 GeneralOperation]: Start isEquivalent. First operand 516 states and 662 transitions. Second operand has 277 states, 277 states have (on average 1.2851985559566788) internal successors, (356), 276 states have internal predecessors, (356), 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 04:16:28,273 INFO L74 IsIncluded]: Start isIncluded. First operand 516 states and 662 transitions. Second operand has 277 states, 277 states have (on average 1.2851985559566788) internal successors, (356), 276 states have internal predecessors, (356), 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 04:16:28,273 INFO L87 Difference]: Start difference. First operand 516 states and 662 transitions. Second operand has 277 states, 277 states have (on average 1.2851985559566788) internal successors, (356), 276 states have internal predecessors, (356), 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 04:16:28,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:28,282 INFO L93 Difference]: Finished difference Result 516 states and 662 transitions. [2022-02-21 04:16:28,282 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 662 transitions. [2022-02-21 04:16:28,282 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:28,283 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:28,283 INFO L74 IsIncluded]: Start isIncluded. First operand has 277 states, 277 states have (on average 1.2851985559566788) internal successors, (356), 276 states have internal predecessors, (356), 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 516 states and 662 transitions. [2022-02-21 04:16:28,284 INFO L87 Difference]: Start difference. First operand has 277 states, 277 states have (on average 1.2851985559566788) internal successors, (356), 276 states have internal predecessors, (356), 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 516 states and 662 transitions. [2022-02-21 04:16:28,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:28,293 INFO L93 Difference]: Finished difference Result 516 states and 662 transitions. [2022-02-21 04:16:28,293 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 662 transitions. [2022-02-21 04:16:28,294 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:28,294 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:28,294 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:28,294 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:28,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 277 states have (on average 1.2851985559566788) internal successors, (356), 276 states have internal predecessors, (356), 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 04:16:28,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 356 transitions. [2022-02-21 04:16:28,298 INFO L704 BuchiCegarLoop]: Abstraction has 277 states and 356 transitions. [2022-02-21 04:16:28,298 INFO L587 BuchiCegarLoop]: Abstraction has 277 states and 356 transitions. [2022-02-21 04:16:28,298 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:16:28,299 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 277 states and 356 transitions. [2022-02-21 04:16:28,300 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 197 [2022-02-21 04:16:28,300 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:28,300 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:28,300 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:28,300 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:28,300 INFO L791 eck$LassoCheckResult]: Stem: 3289#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 3208#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~10#1, main_~tmp~6#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 3209#L409 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3260#L402 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 3206#L417 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 3207#L609 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 3245#L585 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 3233#L351 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3200#L65-2 [2022-02-21 04:16:28,301 INFO L793 eck$LassoCheckResult]: Loop: 3200#L65-2 assume !false; 3201#L66 assume test_~splverifierCounter~0#1 < 4; 3288#L67 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 3227#L75 assume !(0 != test_~tmp~0#1); 3228#L75-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 3193#L85 assume !(0 != test_~tmp___0~0#1); 3126#L85-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 3127#L95 assume 0 != test_~tmp___2~0#1; 3256#L101-2 assume { :begin_inline_timeShift } true; 3184#L139 assume !(0 != ~pumpRunning~0); 3159#L139-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 3160#L197 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 3240#L171-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 3237#L506-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 3238#L511-1 isHighWaterLevel_#t~ret19#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret19#1;havoc isHighWaterLevel_#t~ret19#1; 3273#L299-3 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~1#1 := 0; 3183#L299-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 3172#L305-1 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 3173#L175-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3213#L163-2 assume { :end_inline_processEnvironment__wrappee__base } true; 3214#L171-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3144#L197-1 assume { :end_inline_processEnvironment } true; 3145#L146-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret21#1, __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 3295#L466 __utac_acc__Specification2_spec__2_#t~ret21#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret21#1;havoc __utac_acc__Specification2_spec__2_#t~ret21#1; 3291#L362 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 3152#L362-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 3176#L156 assume { :end_inline_timeShift } true; 3200#L65-2 [2022-02-21 04:16:28,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:28,302 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-02-21 04:16:28,302 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:28,302 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240046998] [2022-02-21 04:16:28,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:28,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:28,316 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:28,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:28,324 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:28,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:28,325 INFO L85 PathProgramCache]: Analyzing trace with hash -2015468562, now seen corresponding path program 1 times [2022-02-21 04:16:28,325 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:28,325 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868811180] [2022-02-21 04:16:28,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:28,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:28,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:28,339 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:28,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:28,344 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:28,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:28,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1844693147, now seen corresponding path program 1 times [2022-02-21 04:16:28,345 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:28,345 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124095264] [2022-02-21 04:16:28,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:28,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:28,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:28,356 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:28,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:28,366 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:30,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:16:30 BoogieIcfgContainer [2022-02-21 04:16:30,897 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:16:30,897 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:16:30,897 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:16:30,898 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:16:30,898 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:25" (3/4) ... [2022-02-21 04:16:30,900 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:16:30,941 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:16:30,944 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:16:30,945 INFO L158 Benchmark]: Toolchain (without parser) took 6133.59ms. Allocated memory was 113.2MB in the beginning and 197.1MB in the end (delta: 83.9MB). Free memory was 81.2MB in the beginning and 57.9MB in the end (delta: 23.3MB). Peak memory consumption was 105.5MB. Max. memory is 16.1GB. [2022-02-21 04:16:30,946 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory was 36.2MB in the beginning and 36.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:16:30,947 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.98ms. Allocated memory is still 113.2MB. Free memory was 81.2MB in the beginning and 76.1MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:16:30,947 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.97ms. Allocated memory is still 113.2MB. Free memory was 76.1MB in the beginning and 71.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:30,947 INFO L158 Benchmark]: Boogie Preprocessor took 40.75ms. Allocated memory is still 113.2MB. Free memory was 71.9MB in the beginning and 69.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:30,948 INFO L158 Benchmark]: RCFGBuilder took 588.02ms. Allocated memory is still 113.2MB. Free memory was 69.4MB in the beginning and 71.2MB in the end (delta: -1.8MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2022-02-21 04:16:30,948 INFO L158 Benchmark]: BuchiAutomizer took 5038.86ms. Allocated memory was 113.2MB in the beginning and 197.1MB in the end (delta: 83.9MB). Free memory was 70.6MB in the beginning and 60.0MB in the end (delta: 10.6MB). Peak memory consumption was 98.5MB. Max. memory is 16.1GB. [2022-02-21 04:16:30,948 INFO L158 Benchmark]: Witness Printer took 47.16ms. Allocated memory is still 197.1MB. Free memory was 60.0MB in the beginning and 57.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:30,950 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory was 36.2MB in the beginning and 36.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 336.98ms. Allocated memory is still 113.2MB. Free memory was 81.2MB in the beginning and 76.1MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.97ms. Allocated memory is still 113.2MB. Free memory was 76.1MB in the beginning and 71.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.75ms. Allocated memory is still 113.2MB. Free memory was 71.9MB in the beginning and 69.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 588.02ms. Allocated memory is still 113.2MB. Free memory was 69.4MB in the beginning and 71.2MB in the end (delta: -1.8MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 5038.86ms. Allocated memory was 113.2MB in the beginning and 197.1MB in the end (delta: 83.9MB). Free memory was 70.6MB in the beginning and 60.0MB in the end (delta: 10.6MB). Peak memory consumption was 98.5MB. Max. memory is 16.1GB. * Witness Printer took 47.16ms. Allocated memory is still 197.1MB. Free memory was 60.0MB in the beginning and 57.9MB 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 277 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.1s. Büchi inclusion checks took 1.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 390 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 277 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1531 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1531 mSDsluCounter, 2044 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1347 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 127 IncrementalHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 697 mSDtfsCounter, 127 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 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: 65]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ca30be=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, tmp___0=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2828244f=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34be39e1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52d1db0c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3142d610=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28b5a077=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a1fec04=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c3d5581=29, methaneLevelCritical=0, tmp=0, \result=0, retValue_acc=1, retValue_acc=0, \result=1, \result=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@272bd546=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@171d4fb7=0, tmp___2=29, methAndRunningLastTime=0, tmp=0, tmp=1, cleanupTimeShifts=4, \result=0, tmp=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp___0=0, \result=0, retValue_acc=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 65]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L131] int pumpRunning = 0; [L132] int systemActive = 1; [L345] int methAndRunningLastTime ; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L526] int cleanupTimeShifts = 4; [L801] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L600] int retValue_acc ; [L601] int tmp ; [L605] FCALL select_helpers() [L606] FCALL select_features() [L607] CALL, EXPR valid_product() [L413] int retValue_acc ; [L416] retValue_acc = 1 [L417] return (retValue_acc); [L607] RET, EXPR valid_product() [L607] tmp = valid_product() [L609] COND TRUE \read(tmp) [L611] FCALL setup() [L612] CALL runTest() [L593] CALL __utac_acc__Specification2_spec__1() [L350] methAndRunningLastTime = 0 [L593] RET __utac_acc__Specification2_spec__1() [L594] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L110] CALL timeShift() [L139] COND FALSE !(\read(pumpRunning)) [L146] COND TRUE \read(systemActive) [L148] CALL processEnvironment() [L194] int tmp ; [L197] COND FALSE !(\read(pumpRunning)) [L212] CALL processEnvironment__wrappee__highWaterSensor() [L168] int tmp ; [L171] COND TRUE ! pumpRunning [L173] CALL, EXPR isHighWaterLevel() [L291] int retValue_acc ; [L292] int tmp ; [L293] int tmp___0 ; [L297] CALL, EXPR isHighWaterSensorDry() [L503] int retValue_acc ; [L506] COND TRUE waterLevel < 2 [L507] retValue_acc = 1 [L508] return (retValue_acc); [L297] RET, EXPR isHighWaterSensorDry() [L297] tmp = isHighWaterSensorDry() [L299] COND TRUE \read(tmp) [L300] tmp___0 = 0 [L304] retValue_acc = tmp___0 [L305] return (retValue_acc); [L173] RET, EXPR isHighWaterLevel() [L173] tmp = isHighWaterLevel() [L175] COND FALSE !(\read(tmp)) [L181] FCALL processEnvironment__wrappee__base() [L212] RET processEnvironment__wrappee__highWaterSensor() [L148] RET processEnvironment() [L154] CALL __utac_acc__Specification2_spec__2() [L355] int tmp ; [L356] int tmp___0 ; [L360] CALL, EXPR isMethaneLevelCritical() [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); [L360] RET, EXPR isMethaneLevelCritical() [L360] tmp = isMethaneLevelCritical() [L362] COND FALSE !(\read(tmp)) [L378] methAndRunningLastTime = 0 [L154] RET __utac_acc__Specification2_spec__2() [L110] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:16:31,028 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)