./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product15.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_product15.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 d2302423425d09a02191583f4a443e0b9b2d72b45fd4f1bcb2e2d3ac85995a3d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:15:58,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:15:58,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:15:58,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:15:58,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:15:58,788 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:15:58,789 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:15:58,790 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:15:58,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:15:58,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:15:58,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:15:58,807 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:15:58,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:15:58,809 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:15:58,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:15:58,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:15:58,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:15:58,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:15:58,818 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:15:58,819 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:15:58,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:15:58,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:15:58,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:15:58,825 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:15:58,827 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:15:58,828 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:15:58,829 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:15:58,830 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:15:58,830 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:15:58,831 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:15:58,831 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:15:58,832 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:15:58,833 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:15:58,834 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:15:58,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:15:58,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:15:58,835 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:15:58,836 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:15:58,836 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:15:58,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:15:58,837 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:15:58,838 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:15:58,864 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:15:58,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:15:58,865 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:15:58,865 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:15:58,866 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:15:58,866 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:15:58,866 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:15:58,866 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:15:58,866 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:15:58,866 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:15:58,867 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:15:58,867 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:15:58,867 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:15:58,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:15:58,868 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:15:58,868 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:15:58,868 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:15:58,868 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:15:58,868 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:15:58,868 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:15:58,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:15:58,869 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:15:58,869 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:15:58,869 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:15:58,869 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:15:58,869 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:15:58,869 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:15:58,870 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:15:58,870 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:15:58,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:15:58,870 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:15:58,871 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:15:58,871 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d2302423425d09a02191583f4a443e0b9b2d72b45fd4f1bcb2e2d3ac85995a3d [2022-02-21 04:15:59,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:15:59,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:15:59,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:15:59,101 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:15:59,102 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:15:59,103 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product15.cil.c [2022-02-21 04:15:59,166 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55e8799e4/e0fb0d3791f74da28bf1672298961a38/FLAGee9fe1806 [2022-02-21 04:15:59,492 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:15:59,493 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product15.cil.c [2022-02-21 04:15:59,502 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55e8799e4/e0fb0d3791f74da28bf1672298961a38/FLAGee9fe1806 [2022-02-21 04:15:59,897 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55e8799e4/e0fb0d3791f74da28bf1672298961a38 [2022-02-21 04:15:59,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:15:59,902 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:15:59,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:59,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:15:59,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:15:59,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:59" (1/1) ... [2022-02-21 04:15:59,910 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66fc72e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:59, skipping insertion in model container [2022-02-21 04:15:59,910 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:59" (1/1) ... [2022-02-21 04:15:59,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:15:59,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:16:00,191 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_product15.cil.c[5831,5844] [2022-02-21 04:16:00,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:00,257 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:16:00,284 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_product15.cil.c[5831,5844] [2022-02-21 04:16:00,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:00,326 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:16:00,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:00 WrapperNode [2022-02-21 04:16:00,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:00,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:00,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:16:00,328 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:16:00,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:00" (1/1) ... [2022-02-21 04:16:00,349 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:00" (1/1) ... [2022-02-21 04:16:00,393 INFO L137 Inliner]: procedures = 53, calls = 153, calls flagged for inlining = 50, calls inlined = 50, statements flattened = 382 [2022-02-21 04:16:00,394 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:00,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:16:00,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:16:00,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:16:00,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:00" (1/1) ... [2022-02-21 04:16:00,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:00" (1/1) ... [2022-02-21 04:16:00,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:00" (1/1) ... [2022-02-21 04:16:00,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:00" (1/1) ... [2022-02-21 04:16:00,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:00" (1/1) ... [2022-02-21 04:16:00,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:00" (1/1) ... [2022-02-21 04:16:00,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:00" (1/1) ... [2022-02-21 04:16:00,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:16:00,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:16:00,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:16:00,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:16:00,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:00" (1/1) ... [2022-02-21 04:16:00,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:16:00,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:16:00,529 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 04:16:00,584 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 04:16:00,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:16:00,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:16:00,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:16:00,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:16:00,666 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:16:00,667 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:16:00,989 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:16:00,994 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:16:00,997 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:16:00,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:00 BoogieIcfgContainer [2022-02-21 04:16:01,000 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:16:01,001 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:16:01,001 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:16:01,004 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:16:01,005 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:01,005 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:15:59" (1/3) ... [2022-02-21 04:16:01,007 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49dfe234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:01, skipping insertion in model container [2022-02-21 04:16:01,007 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:01,007 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:00" (2/3) ... [2022-02-21 04:16:01,007 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49dfe234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:01, skipping insertion in model container [2022-02-21 04:16:01,008 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:01,008 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:00" (3/3) ... [2022-02-21 04:16:01,009 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product15.cil.c [2022-02-21 04:16:01,080 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:16:01,095 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:16:01,095 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:16:01,095 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:16:01,095 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:16:01,096 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:16:01,096 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:16:01,096 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:16:01,128 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 104 states, 103 states have (on average 1.3689320388349515) internal successors, (141), 103 states have internal predecessors, (141), 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 04:16:01,170 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 66 [2022-02-21 04:16:01,176 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:01,176 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:01,182 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:01,182 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 04:16:01,182 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:16:01,186 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 104 states, 103 states have (on average 1.3689320388349515) internal successors, (141), 103 states have internal predecessors, (141), 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 04:16:01,214 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 66 [2022-02-21 04:16:01,216 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:01,217 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:01,217 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:01,221 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 04:16:01,229 INFO L791 eck$LassoCheckResult]: Stem: 93#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 32#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~7#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 27#L776true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 33#L769true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 89#L784true main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 37#L911true assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 95#L887true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 6#L795true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet15#1, test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 72#L238-2true [2022-02-21 04:16:01,230 INFO L793 eck$LassoCheckResult]: Loop: 72#L238-2true assume !false; 25#L239true assume test_~splverifierCounter~0#1 < 4; 22#L240true test_~tmp~2#1 := test_#t~nondet15#1;havoc test_#t~nondet15#1; 105#L248true assume !(0 != test_~tmp~2#1); 29#L248-2true test_~tmp___0~0#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 28#L258true assume !(0 != test_~tmp___0~0#1); 50#L258-2true test_~tmp___2~0#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 17#L268true assume 0 != test_~tmp___2~0#1; 101#L274-2true assume { :begin_inline_timeShift } true; 92#L67true assume !(0 != ~pumpRunning~0); 16#L67-2true assume !(0 != ~systemActive~0); 74#L74-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret48#1, __utac_acc__Specification2_spec__2_#t~ret49#1, __utac_acc__Specification2_spec__2_~tmp~6#1, __utac_acc__Specification2_spec__2_~tmp___0~1#1;havoc __utac_acc__Specification2_spec__2_~tmp~6#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 88#L339-1true __utac_acc__Specification2_spec__2_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~6#1 := __utac_acc__Specification2_spec__2_#t~ret48#1;havoc __utac_acc__Specification2_spec__2_#t~ret48#1; 46#L806true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6#1);~methAndRunningLastTime~0 := 0; 51#L806-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 91#L84true assume { :end_inline_timeShift } true; 72#L238-2true [2022-02-21 04:16:01,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:01,242 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:16:01,268 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:01,269 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831275200] [2022-02-21 04:16:01,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:01,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:01,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:01,407 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:01,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:01,460 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:01,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:01,463 INFO L85 PathProgramCache]: Analyzing trace with hash 825337738, now seen corresponding path program 1 times [2022-02-21 04:16:01,464 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:01,464 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562975908] [2022-02-21 04:16:01,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:01,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:01,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:01,487 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:01,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:01,495 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:01,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:01,499 INFO L85 PathProgramCache]: Analyzing trace with hash 663050355, now seen corresponding path program 1 times [2022-02-21 04:16:01,499 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:01,499 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662348993] [2022-02-21 04:16:01,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:01,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:01,671 INFO L290 TraceCheckUtils]: 0: Hoare triple {112#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; {114#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:01,672 INFO L290 TraceCheckUtils]: 1: Hoare triple {114#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~7#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; {114#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:01,673 INFO L290 TraceCheckUtils]: 2: Hoare triple {114#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {114#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:01,673 INFO L290 TraceCheckUtils]: 3: Hoare triple {114#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; {115#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:16:01,674 INFO L290 TraceCheckUtils]: 4: Hoare triple {115#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret50#1;havoc main_#t~ret50#1; {116#(= |ULTIMATE.start_main_~tmp~7#1| ~systemActive~0)} is VALID [2022-02-21 04:16:01,674 INFO L290 TraceCheckUtils]: 5: Hoare triple {116#(= |ULTIMATE.start_main_~tmp~7#1| ~systemActive~0)} assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; {117#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:01,675 INFO L290 TraceCheckUtils]: 6: Hoare triple {117#(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; {117#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:01,675 INFO L290 TraceCheckUtils]: 7: Hoare triple {117#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet15#1, test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {117#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:01,676 INFO L290 TraceCheckUtils]: 8: Hoare triple {117#(not (= 0 ~systemActive~0))} assume !false; {117#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:01,677 INFO L290 TraceCheckUtils]: 9: Hoare triple {117#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {117#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:01,677 INFO L290 TraceCheckUtils]: 10: Hoare triple {117#(not (= 0 ~systemActive~0))} test_~tmp~2#1 := test_#t~nondet15#1;havoc test_#t~nondet15#1; {117#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:01,678 INFO L290 TraceCheckUtils]: 11: Hoare triple {117#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~2#1); {117#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:01,678 INFO L290 TraceCheckUtils]: 12: Hoare triple {117#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; {117#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:01,679 INFO L290 TraceCheckUtils]: 13: Hoare triple {117#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {117#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:01,679 INFO L290 TraceCheckUtils]: 14: Hoare triple {117#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; {117#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:01,680 INFO L290 TraceCheckUtils]: 15: Hoare triple {117#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {117#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:01,680 INFO L290 TraceCheckUtils]: 16: Hoare triple {117#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {117#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:01,681 INFO L290 TraceCheckUtils]: 17: Hoare triple {117#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {117#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:01,681 INFO L290 TraceCheckUtils]: 18: Hoare triple {117#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {113#false} is VALID [2022-02-21 04:16:01,682 INFO L290 TraceCheckUtils]: 19: Hoare triple {113#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret48#1, __utac_acc__Specification2_spec__2_#t~ret49#1, __utac_acc__Specification2_spec__2_~tmp~6#1, __utac_acc__Specification2_spec__2_~tmp___0~1#1;havoc __utac_acc__Specification2_spec__2_~tmp~6#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; {113#false} is VALID [2022-02-21 04:16:01,682 INFO L290 TraceCheckUtils]: 20: Hoare triple {113#false} __utac_acc__Specification2_spec__2_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~6#1 := __utac_acc__Specification2_spec__2_#t~ret48#1;havoc __utac_acc__Specification2_spec__2_#t~ret48#1; {113#false} is VALID [2022-02-21 04:16:01,683 INFO L290 TraceCheckUtils]: 21: Hoare triple {113#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6#1);~methAndRunningLastTime~0 := 0; {113#false} is VALID [2022-02-21 04:16:01,683 INFO L290 TraceCheckUtils]: 22: Hoare triple {113#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {113#false} is VALID [2022-02-21 04:16:01,683 INFO L290 TraceCheckUtils]: 23: Hoare triple {113#false} assume { :end_inline_timeShift } true; {113#false} is VALID [2022-02-21 04:16:01,685 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 04:16:01,685 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:01,686 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662348993] [2022-02-21 04:16:01,687 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662348993] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:01,687 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:01,687 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:16:01,688 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685250308] [2022-02-21 04:16:01,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:01,835 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:01,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:16:01,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:16:01,870 INFO L87 Difference]: Start difference. First operand has 104 states, 103 states have (on average 1.3689320388349515) internal successors, (141), 103 states have internal predecessors, (141), 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 04:16:02,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:02,479 INFO L93 Difference]: Finished difference Result 261 states and 336 transitions. [2022-02-21 04:16:02,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:16:02,480 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 04:16:02,500 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 04:16:02,503 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 261 states and 336 transitions. [2022-02-21 04:16:02,512 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 165 [2022-02-21 04:16:02,520 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 261 states to 231 states and 306 transitions. [2022-02-21 04:16:02,521 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 231 [2022-02-21 04:16:02,521 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 231 [2022-02-21 04:16:02,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 231 states and 306 transitions. [2022-02-21 04:16:02,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:02,523 INFO L681 BuchiCegarLoop]: Abstraction has 231 states and 306 transitions. [2022-02-21 04:16:02,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states and 306 transitions. [2022-02-21 04:16:02,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 146. [2022-02-21 04:16:02,545 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:02,547 INFO L82 GeneralOperation]: Start isEquivalent. First operand 231 states and 306 transitions. Second operand has 146 states, 146 states have (on average 1.3287671232876712) internal successors, (194), 145 states have internal predecessors, (194), 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 04:16:02,547 INFO L74 IsIncluded]: Start isIncluded. First operand 231 states and 306 transitions. Second operand has 146 states, 146 states have (on average 1.3287671232876712) internal successors, (194), 145 states have internal predecessors, (194), 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 04:16:02,549 INFO L87 Difference]: Start difference. First operand 231 states and 306 transitions. Second operand has 146 states, 146 states have (on average 1.3287671232876712) internal successors, (194), 145 states have internal predecessors, (194), 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 04:16:02,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:02,555 INFO L93 Difference]: Finished difference Result 231 states and 306 transitions. [2022-02-21 04:16:02,555 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 306 transitions. [2022-02-21 04:16:02,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:02,557 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:02,557 INFO L74 IsIncluded]: Start isIncluded. First operand has 146 states, 146 states have (on average 1.3287671232876712) internal successors, (194), 145 states have internal predecessors, (194), 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 231 states and 306 transitions. [2022-02-21 04:16:02,558 INFO L87 Difference]: Start difference. First operand has 146 states, 146 states have (on average 1.3287671232876712) internal successors, (194), 145 states have internal predecessors, (194), 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 231 states and 306 transitions. [2022-02-21 04:16:02,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:02,564 INFO L93 Difference]: Finished difference Result 231 states and 306 transitions. [2022-02-21 04:16:02,564 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 306 transitions. [2022-02-21 04:16:02,565 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:02,565 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:02,565 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:02,565 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:02,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 146 states have (on average 1.3287671232876712) internal successors, (194), 145 states have internal predecessors, (194), 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 04:16:02,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 194 transitions. [2022-02-21 04:16:02,570 INFO L704 BuchiCegarLoop]: Abstraction has 146 states and 194 transitions. [2022-02-21 04:16:02,570 INFO L587 BuchiCegarLoop]: Abstraction has 146 states and 194 transitions. [2022-02-21 04:16:02,570 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:16:02,570 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 146 states and 194 transitions. [2022-02-21 04:16:02,571 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 104 [2022-02-21 04:16:02,571 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:02,572 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:02,572 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:02,572 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:02,572 INFO L791 eck$LassoCheckResult]: Stem: 471#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 461#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~7#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 450#L776 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 451#L769 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 467#L784 main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 469#L911 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 473#L887 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 392#L795 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet15#1, test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 393#L238-2 [2022-02-21 04:16:02,573 INFO L793 eck$LassoCheckResult]: Loop: 393#L238-2 assume !false; 448#L239 assume test_~splverifierCounter~0#1 < 4; 441#L240 test_~tmp~2#1 := test_#t~nondet15#1;havoc test_#t~nondet15#1; 442#L248 assume !(0 != test_~tmp~2#1); 409#L248-2 test_~tmp___0~0#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 455#L258 assume !(0 != test_~tmp___0~0#1); 400#L258-2 test_~tmp___2~0#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 401#L268 assume 0 != test_~tmp___2~0#1; 432#L274-2 assume { :begin_inline_timeShift } true; 470#L67 assume !(0 != ~pumpRunning~0); 421#L67-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret4#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; 422#L99 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true; 459#L91-1 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 411#L99-1 assume { :end_inline_processEnvironment } true; 453#L74-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret48#1, __utac_acc__Specification2_spec__2_#t~ret49#1, __utac_acc__Specification2_spec__2_~tmp~6#1, __utac_acc__Specification2_spec__2_~tmp___0~1#1;havoc __utac_acc__Specification2_spec__2_~tmp~6#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 454#L339-1 __utac_acc__Specification2_spec__2_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~6#1 := __utac_acc__Specification2_spec__2_#t~ret48#1;havoc __utac_acc__Specification2_spec__2_#t~ret48#1; 385#L806 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6#1);~methAndRunningLastTime~0 := 0; 387#L806-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 402#L84 assume { :end_inline_timeShift } true; 393#L238-2 [2022-02-21 04:16:02,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:02,573 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:16:02,573 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:02,574 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947443905] [2022-02-21 04:16:02,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:02,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:02,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:02,583 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:02,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:02,592 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:02,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:02,593 INFO L85 PathProgramCache]: Analyzing trace with hash -61847530, now seen corresponding path program 1 times [2022-02-21 04:16:02,593 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:02,593 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512168630] [2022-02-21 04:16:02,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:02,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:02,598 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:02,602 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:02,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:02,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1367900813, now seen corresponding path program 1 times [2022-02-21 04:16:02,602 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:02,602 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036576964] [2022-02-21 04:16:02,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:02,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:02,613 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:02,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:02,623 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:05,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:16:05 BoogieIcfgContainer [2022-02-21 04:16:05,988 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:16:05,988 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:16:05,989 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:16:05,989 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:16:05,989 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:00" (3/4) ... [2022-02-21 04:16:05,992 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:16:06,027 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:16:06,027 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:16:06,028 INFO L158 Benchmark]: Toolchain (without parser) took 6126.22ms. Allocated memory was 111.1MB in the beginning and 167.8MB in the end (delta: 56.6MB). Free memory was 76.0MB in the beginning and 130.1MB in the end (delta: -54.1MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2022-02-21 04:16:06,029 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 77.6MB. Free memory was 52.3MB in the beginning and 52.3MB in the end (delta: 26.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:16:06,029 INFO L158 Benchmark]: CACSL2BoogieTranslator took 423.31ms. Allocated memory is still 111.1MB. Free memory was 75.8MB in the beginning and 76.7MB in the end (delta: -848.7kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-02-21 04:16:06,029 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.04ms. Allocated memory is still 111.1MB. Free memory was 76.7MB in the beginning and 73.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:06,029 INFO L158 Benchmark]: Boogie Preprocessor took 39.79ms. Allocated memory is still 111.1MB. Free memory was 73.7MB in the beginning and 71.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:06,030 INFO L158 Benchmark]: RCFGBuilder took 564.90ms. Allocated memory is still 111.1MB. Free memory was 71.6MB in the beginning and 52.0MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-02-21 04:16:06,030 INFO L158 Benchmark]: BuchiAutomizer took 4987.35ms. Allocated memory was 111.1MB in the beginning and 167.8MB in the end (delta: 56.6MB). Free memory was 52.0MB in the beginning and 132.1MB in the end (delta: -80.1MB). Peak memory consumption was 69.8MB. Max. memory is 16.1GB. [2022-02-21 04:16:06,030 INFO L158 Benchmark]: Witness Printer took 38.98ms. Allocated memory is still 167.8MB. Free memory was 132.1MB in the beginning and 130.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:06,031 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 0.21ms. Allocated memory is still 77.6MB. Free memory was 52.3MB in the beginning and 52.3MB in the end (delta: 26.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 423.31ms. Allocated memory is still 111.1MB. Free memory was 75.8MB in the beginning and 76.7MB in the end (delta: -848.7kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.04ms. Allocated memory is still 111.1MB. Free memory was 76.7MB in the beginning and 73.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.79ms. Allocated memory is still 111.1MB. Free memory was 73.7MB in the beginning and 71.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 564.90ms. Allocated memory is still 111.1MB. Free memory was 71.6MB in the beginning and 52.0MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 4987.35ms. Allocated memory was 111.1MB in the beginning and 167.8MB in the end (delta: 56.6MB). Free memory was 52.0MB in the beginning and 132.1MB in the end (delta: -80.1MB). Peak memory consumption was 69.8MB. Max. memory is 16.1GB. * Witness Printer took 38.98ms. Allocated memory is still 167.8MB. Free memory was 132.1MB in the beginning and 130.1MB in the end (delta: 2.0MB). 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 146 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 4.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 85 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 146 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 469 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 469 mSDsluCounter, 811 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 686 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 125 mSDtfsCounter, 42 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 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: 238]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a455d4c=0, head=0, pumpRunning=0, tmp___0=0, NULL=1, methaneLevelCritical=0, tmp=0, \result=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c71bf2d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b0b2168=0, \result=1, retValue_acc=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75580e38=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b83c9e=0, tmp=1, tmp___2=29, methAndRunningLastTime=0, cleanupTimeShifts=4, tmp=0, \result=0, tmp=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f3a37e3=0, tmp___1=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70f366f2=0, waterLevel=1, systemActive=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a006f3c=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 238]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L59] int pumpRunning = 0; [L60] int systemActive = 1; [L296] int waterLevel = 1; [L297] int methaneLevelCritical = 0; [L554] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L789] int methAndRunningLastTime ; [L828] int cleanupTimeShifts = 4; [L902] int retValue_acc ; [L903] int tmp ; [L907] FCALL select_helpers() [L908] FCALL select_features() [L909] CALL, EXPR valid_product() [L780] int retValue_acc ; [L783] retValue_acc = 1 [L784] return (retValue_acc); [L909] RET, EXPR valid_product() [L909] tmp = valid_product() [L911] COND TRUE \read(tmp) [L913] FCALL setup() [L914] CALL runTest() [L895] CALL __utac_acc__Specification2_spec__1() [L794] methAndRunningLastTime = 0 [L895] RET __utac_acc__Specification2_spec__1() [L896] CALL test() [L229] int splverifierCounter ; [L230] int tmp ; [L231] int tmp___0 ; [L232] int tmp___1 ; [L233] int tmp___2 ; [L236] splverifierCounter = 0 Loop: [L238] COND TRUE 1 [L240] COND TRUE splverifierCounter < 4 [L246] tmp = __VERIFIER_nondet_int() [L248] COND FALSE !(\read(tmp)) [L256] tmp___0 = __VERIFIER_nondet_int() [L258] COND FALSE !(\read(tmp___0)) [L266] tmp___2 = __VERIFIER_nondet_int() [L268] COND TRUE \read(tmp___2) [L283] CALL timeShift() [L67] COND FALSE !(\read(pumpRunning)) [L74] COND TRUE \read(systemActive) [L76] CALL processEnvironment() [L96] int tmp ; [L99] COND FALSE !(\read(pumpRunning)) [L114] FCALL processEnvironment__wrappee__methaneQuery() [L76] RET processEnvironment() [L82] CALL __utac_acc__Specification2_spec__2() [L799] int tmp ; [L800] int tmp___0 ; [L804] CALL, EXPR isMethaneLevelCritical() [L335] int retValue_acc ; [L338] retValue_acc = methaneLevelCritical [L339] return (retValue_acc); [L804] RET, EXPR isMethaneLevelCritical() [L804] tmp = isMethaneLevelCritical() [L806] COND FALSE !(\read(tmp)) [L822] methAndRunningLastTime = 0 [L82] RET __utac_acc__Specification2_spec__2() [L283] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:16:06,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)