./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product47.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_product47.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 2bb4b23c61a0ce6fb5d219efb233ba1e5b1970509ba14aea9115d570a0ea376d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:16:20,842 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:16:20,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:16:20,877 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:16:20,878 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:16:20,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:16:20,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:16:20,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:16:20,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:16:20,888 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:16:20,889 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:16:20,890 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:16:20,890 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:16:20,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:16:20,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:16:20,895 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:16:20,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:16:20,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:16:20,898 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:16:20,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:16:20,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:16:20,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:16:20,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:16:20,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:16:20,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:16:20,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:16:20,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:16:20,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:16:20,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:16:20,913 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:16:20,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:16:20,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:16:20,915 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:16:20,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:16:20,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:16:20,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:16:20,917 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:16:20,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:16:20,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:16:20,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:16:20,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:16:20,919 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:16:20,945 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:16:20,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:16:20,946 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:16:20,946 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:16:20,947 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:16:20,947 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:16:20,947 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:16:20,947 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:16:20,948 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:16:20,948 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:16:20,948 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:16:20,949 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:16:20,949 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:16:20,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:16:20,949 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:16:20,949 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:16:20,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:16:20,949 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:16:20,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:16:20,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:16:20,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:16:20,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:16:20,950 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:16:20,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:16:20,950 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:16:20,950 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:16:20,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:16:20,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:16:20,951 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:16:20,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:16:20,951 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:16:20,952 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:16:20,952 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2bb4b23c61a0ce6fb5d219efb233ba1e5b1970509ba14aea9115d570a0ea376d [2022-02-21 04:16:21,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:16:21,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:16:21,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:16:21,163 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:16:21,163 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:16:21,164 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product47.cil.c [2022-02-21 04:16:21,205 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c416b75c/88e7f01fecf14c3188444ee75e7f1d34/FLAG37ae2deca [2022-02-21 04:16:21,624 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:16:21,627 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product47.cil.c [2022-02-21 04:16:21,641 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c416b75c/88e7f01fecf14c3188444ee75e7f1d34/FLAG37ae2deca [2022-02-21 04:16:21,649 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c416b75c/88e7f01fecf14c3188444ee75e7f1d34 [2022-02-21 04:16:21,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:16:21,652 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:16:21,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:21,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:16:21,656 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:16:21,657 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:21" (1/1) ... [2022-02-21 04:16:21,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a3736c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:21, skipping insertion in model container [2022-02-21 04:16:21,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:21" (1/1) ... [2022-02-21 04:16:21,671 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:16:21,703 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:16:21,848 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_product47.cil.c[1605,1618] [2022-02-21 04:16:21,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:21,959 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:16:21,972 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_product47.cil.c[1605,1618] [2022-02-21 04:16:22,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:22,076 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:16:22,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:22 WrapperNode [2022-02-21 04:16:22,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:22,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:22,078 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:16:22,078 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:16:22,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:22" (1/1) ... [2022-02-21 04:16:22,108 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:22" (1/1) ... [2022-02-21 04:16:22,154 INFO L137 Inliner]: procedures = 56, calls = 158, calls flagged for inlining = 55, calls inlined = 98, statements flattened = 730 [2022-02-21 04:16:22,154 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:22,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:16:22,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:16:22,155 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:16:22,161 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:22" (1/1) ... [2022-02-21 04:16:22,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:22" (1/1) ... [2022-02-21 04:16:22,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:22" (1/1) ... [2022-02-21 04:16:22,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:22" (1/1) ... [2022-02-21 04:16:22,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:22" (1/1) ... [2022-02-21 04:16:22,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:22" (1/1) ... [2022-02-21 04:16:22,199 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:22" (1/1) ... [2022-02-21 04:16:22,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:16:22,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:16:22,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:16:22,203 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:16:22,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:22" (1/1) ... [2022-02-21 04:16:22,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:16:22,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:16:22,241 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 04:16:22,248 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 04:16:22,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:16:22,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:16:22,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:16:22,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:16:22,364 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:16:22,365 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:16:22,838 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:16:22,846 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:16:22,846 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:16:22,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:22 BoogieIcfgContainer [2022-02-21 04:16:22,848 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:16:22,848 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:16:22,848 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:16:22,851 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:16:22,851 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:22,852 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:16:21" (1/3) ... [2022-02-21 04:16:22,852 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@397b956b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:22, skipping insertion in model container [2022-02-21 04:16:22,853 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:22,853 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:22" (2/3) ... [2022-02-21 04:16:22,853 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@397b956b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:22, skipping insertion in model container [2022-02-21 04:16:22,853 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:22,853 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:22" (3/3) ... [2022-02-21 04:16:22,854 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product47.cil.c [2022-02-21 04:16:22,891 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:16:22,891 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:16:22,891 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:16:22,891 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:16:22,891 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:16:22,891 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:16:22,891 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:16:22,891 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:16:22,906 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 188 states, 187 states have (on average 1.3636363636363635) internal successors, (255), 187 states have internal predecessors, (255), 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 04:16:22,948 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2022-02-21 04:16:22,948 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:22,948 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:22,953 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:22,954 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 04:16:22,954 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:16:22,956 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 188 states, 187 states have (on average 1.3636363636363635) internal successors, (255), 187 states have internal predecessors, (255), 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 04:16:22,985 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2022-02-21 04:16:22,986 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:22,986 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:22,987 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:22,987 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 04:16:22,995 INFO L791 eck$LassoCheckResult]: Stem: 176#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 53#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_~retValue_acc~5#1, main_~tmp~4#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 173#L84true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 99#L77true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 161#L92true main_#t~ret30#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret30#1;havoc main_#t~ret30#1; 24#L592true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 63#L567true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 32#L471true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 30#L927-2true [2022-02-21 04:16:22,996 INFO L793 eck$LassoCheckResult]: Loop: 30#L927-2true assume !false; 85#L928true assume test_~splverifierCounter~0#1 < 4; 95#L929true test_~tmp~9#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 109#L937true assume !(0 != test_~tmp~9#1); 144#L937-2true test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 69#L947true assume !(0 != test_~tmp___0~2#1); 138#L947-2true test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 84#L957true assume 0 != test_~tmp___2~0#1; 18#L963-2true assume { :begin_inline_timeShift } true; 15#L714true assume !(0 != ~pumpRunning~0); 112#L714-2true assume !(0 != ~systemActive~0); 74#L721-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_#t~ret29#1, __utac_acc__Specification2_spec__2_~tmp~3#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~3#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#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; 104#L653-3true __utac_acc__Specification2_spec__2_#t~ret28#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~3#1 := __utac_acc__Specification2_spec__2_#t~ret28#1;havoc __utac_acc__Specification2_spec__2_#t~ret28#1; 82#L482true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3#1);~methAndRunningLastTime~0 := 0; 55#L482-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 134#L731true assume { :end_inline_timeShift } true; 30#L927-2true [2022-02-21 04:16:23,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:23,001 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:16:23,009 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:23,010 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710366555] [2022-02-21 04:16:23,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:23,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:23,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:23,124 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:23,193 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:23,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:23,196 INFO L85 PathProgramCache]: Analyzing trace with hash -747951606, now seen corresponding path program 1 times [2022-02-21 04:16:23,196 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:23,197 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380898500] [2022-02-21 04:16:23,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:23,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:23,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:23,227 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:23,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:23,233 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:23,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:23,238 INFO L85 PathProgramCache]: Analyzing trace with hash -910238989, now seen corresponding path program 1 times [2022-02-21 04:16:23,238 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:23,238 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908813674] [2022-02-21 04:16:23,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:23,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:23,382 INFO L290 TraceCheckUtils]: 0: Hoare triple {196#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; {198#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:23,385 INFO L290 TraceCheckUtils]: 1: Hoare triple {198#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_~retValue_acc~5#1, main_~tmp~4#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; {198#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:23,386 INFO L290 TraceCheckUtils]: 2: Hoare triple {198#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {198#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:23,386 INFO L290 TraceCheckUtils]: 3: Hoare triple {198#(= 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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; {199#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:16:23,387 INFO L290 TraceCheckUtils]: 4: Hoare triple {199#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret30#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret30#1;havoc main_#t~ret30#1; {200#(= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0)} is VALID [2022-02-21 04:16:23,388 INFO L290 TraceCheckUtils]: 5: Hoare triple {200#(= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0)} assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; {201#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:23,388 INFO L290 TraceCheckUtils]: 6: Hoare triple {201#(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; {201#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:23,389 INFO L290 TraceCheckUtils]: 7: Hoare triple {201#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {201#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:23,390 INFO L290 TraceCheckUtils]: 8: Hoare triple {201#(not (= 0 ~systemActive~0))} assume !false; {201#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:23,390 INFO L290 TraceCheckUtils]: 9: Hoare triple {201#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {201#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:23,391 INFO L290 TraceCheckUtils]: 10: Hoare triple {201#(not (= 0 ~systemActive~0))} test_~tmp~9#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; {201#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:23,391 INFO L290 TraceCheckUtils]: 11: Hoare triple {201#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~9#1); {201#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:23,392 INFO L290 TraceCheckUtils]: 12: Hoare triple {201#(not (= 0 ~systemActive~0))} test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; {201#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:23,392 INFO L290 TraceCheckUtils]: 13: Hoare triple {201#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~2#1); {201#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:23,393 INFO L290 TraceCheckUtils]: 14: Hoare triple {201#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; {201#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:23,393 INFO L290 TraceCheckUtils]: 15: Hoare triple {201#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {201#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:23,393 INFO L290 TraceCheckUtils]: 16: Hoare triple {201#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {201#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:23,394 INFO L290 TraceCheckUtils]: 17: Hoare triple {201#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {201#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:23,394 INFO L290 TraceCheckUtils]: 18: Hoare triple {201#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {197#false} is VALID [2022-02-21 04:16:23,395 INFO L290 TraceCheckUtils]: 19: Hoare triple {197#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_#t~ret29#1, __utac_acc__Specification2_spec__2_~tmp~3#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~3#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#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; {197#false} is VALID [2022-02-21 04:16:23,395 INFO L290 TraceCheckUtils]: 20: Hoare triple {197#false} __utac_acc__Specification2_spec__2_#t~ret28#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~3#1 := __utac_acc__Specification2_spec__2_#t~ret28#1;havoc __utac_acc__Specification2_spec__2_#t~ret28#1; {197#false} is VALID [2022-02-21 04:16:23,396 INFO L290 TraceCheckUtils]: 21: Hoare triple {197#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3#1);~methAndRunningLastTime~0 := 0; {197#false} is VALID [2022-02-21 04:16:23,396 INFO L290 TraceCheckUtils]: 22: Hoare triple {197#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {197#false} is VALID [2022-02-21 04:16:23,396 INFO L290 TraceCheckUtils]: 23: Hoare triple {197#false} assume { :end_inline_timeShift } true; {197#false} is VALID [2022-02-21 04:16:23,397 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 04:16:23,397 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:23,398 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908813674] [2022-02-21 04:16:23,410 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908813674] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:23,410 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:23,410 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:16:23,411 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737745809] [2022-02-21 04:16:23,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:23,538 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:23,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:16:23,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:16:23,563 INFO L87 Difference]: Start difference. First operand has 188 states, 187 states have (on average 1.3636363636363635) internal successors, (255), 187 states have internal predecessors, (255), 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 04:16:24,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:24,346 INFO L93 Difference]: Finished difference Result 429 states and 564 transitions. [2022-02-21 04:16:24,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:16:24,347 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 04:16:24,367 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 04:16:24,376 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 429 states and 564 transitions. [2022-02-21 04:16:24,393 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 277 [2022-02-21 04:16:24,409 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 429 states to 399 states and 534 transitions. [2022-02-21 04:16:24,411 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 399 [2022-02-21 04:16:24,413 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 399 [2022-02-21 04:16:24,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 399 states and 534 transitions. [2022-02-21 04:16:24,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:24,418 INFO L681 BuchiCegarLoop]: Abstraction has 399 states and 534 transitions. [2022-02-21 04:16:24,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states and 534 transitions. [2022-02-21 04:16:24,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 230. [2022-02-21 04:16:24,457 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:24,461 INFO L82 GeneralOperation]: Start isEquivalent. First operand 399 states and 534 transitions. Second operand has 230 states, 230 states have (on average 1.3391304347826087) internal successors, (308), 229 states have internal predecessors, (308), 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 04:16:24,463 INFO L74 IsIncluded]: Start isIncluded. First operand 399 states and 534 transitions. Second operand has 230 states, 230 states have (on average 1.3391304347826087) internal successors, (308), 229 states have internal predecessors, (308), 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 04:16:24,468 INFO L87 Difference]: Start difference. First operand 399 states and 534 transitions. Second operand has 230 states, 230 states have (on average 1.3391304347826087) internal successors, (308), 229 states have internal predecessors, (308), 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 04:16:24,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:24,480 INFO L93 Difference]: Finished difference Result 399 states and 534 transitions. [2022-02-21 04:16:24,481 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 534 transitions. [2022-02-21 04:16:24,488 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:24,488 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:24,489 INFO L74 IsIncluded]: Start isIncluded. First operand has 230 states, 230 states have (on average 1.3391304347826087) internal successors, (308), 229 states have internal predecessors, (308), 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 399 states and 534 transitions. [2022-02-21 04:16:24,490 INFO L87 Difference]: Start difference. First operand has 230 states, 230 states have (on average 1.3391304347826087) internal successors, (308), 229 states have internal predecessors, (308), 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 399 states and 534 transitions. [2022-02-21 04:16:24,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:24,499 INFO L93 Difference]: Finished difference Result 399 states and 534 transitions. [2022-02-21 04:16:24,499 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 534 transitions. [2022-02-21 04:16:24,500 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:24,500 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:24,500 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:24,500 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:24,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 230 states have (on average 1.3391304347826087) internal successors, (308), 229 states have internal predecessors, (308), 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 04:16:24,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 308 transitions. [2022-02-21 04:16:24,511 INFO L704 BuchiCegarLoop]: Abstraction has 230 states and 308 transitions. [2022-02-21 04:16:24,511 INFO L587 BuchiCegarLoop]: Abstraction has 230 states and 308 transitions. [2022-02-21 04:16:24,511 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:16:24,512 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 230 states and 308 transitions. [2022-02-21 04:16:24,513 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 160 [2022-02-21 04:16:24,513 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:24,513 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:24,514 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:24,514 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 04:16:24,515 INFO L791 eck$LassoCheckResult]: Stem: 806#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 725#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_~retValue_acc~5#1, main_~tmp~4#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 726#L84 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 774#L77 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 775#L92 main_#t~ret30#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret30#1;havoc main_#t~ret30#1; 677#L592 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 678#L567 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 692#L471 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 687#L927-2 [2022-02-21 04:16:24,515 INFO L793 eck$LassoCheckResult]: Loop: 687#L927-2 assume !false; 688#L928 assume test_~splverifierCounter~0#1 < 4; 756#L929 test_~tmp~9#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 769#L937 assume !(0 != test_~tmp~9#1); 651#L937-2 test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 737#L947 assume !(0 != test_~tmp___0~2#1); 708#L947-2 test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 754#L957 assume 0 != test_~tmp___2~0#1; 665#L963-2 assume { :begin_inline_timeShift } true; 659#L714 assume !(0 != ~pumpRunning~0); 660#L714-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 645#L772 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret36#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1; 646#L746-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 782#L738-3 assume { :end_inline_processEnvironment__wrappee__base } true; 729#L746-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 670#L772-1 assume { :end_inline_processEnvironment } true; 671#L721-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_#t~ret29#1, __utac_acc__Specification2_spec__2_~tmp~3#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~3#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#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; 744#L653-3 __utac_acc__Specification2_spec__2_#t~ret28#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~3#1 := __utac_acc__Specification2_spec__2_#t~ret28#1;havoc __utac_acc__Specification2_spec__2_#t~ret28#1; 753#L482 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3#1);~methAndRunningLastTime~0 := 0; 673#L482-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 727#L731 assume { :end_inline_timeShift } true; 687#L927-2 [2022-02-21 04:16:24,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:24,515 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:16:24,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:24,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263041094] [2022-02-21 04:16:24,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:24,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:24,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:24,534 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:24,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:24,560 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:24,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:24,561 INFO L85 PathProgramCache]: Analyzing trace with hash 2121906562, now seen corresponding path program 1 times [2022-02-21 04:16:24,561 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:24,561 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473976930] [2022-02-21 04:16:24,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:24,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:24,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:24,588 INFO L290 TraceCheckUtils]: 0: Hoare triple {1668#true} assume !false; {1668#true} is VALID [2022-02-21 04:16:24,588 INFO L290 TraceCheckUtils]: 1: Hoare triple {1668#true} assume test_~splverifierCounter~0#1 < 4; {1668#true} is VALID [2022-02-21 04:16:24,589 INFO L290 TraceCheckUtils]: 2: Hoare triple {1668#true} test_~tmp~9#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; {1668#true} is VALID [2022-02-21 04:16:24,589 INFO L290 TraceCheckUtils]: 3: Hoare triple {1668#true} assume !(0 != test_~tmp~9#1); {1668#true} is VALID [2022-02-21 04:16:24,589 INFO L290 TraceCheckUtils]: 4: Hoare triple {1668#true} test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; {1668#true} is VALID [2022-02-21 04:16:24,589 INFO L290 TraceCheckUtils]: 5: Hoare triple {1668#true} assume !(0 != test_~tmp___0~2#1); {1668#true} is VALID [2022-02-21 04:16:24,589 INFO L290 TraceCheckUtils]: 6: Hoare triple {1668#true} test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; {1668#true} is VALID [2022-02-21 04:16:24,590 INFO L290 TraceCheckUtils]: 7: Hoare triple {1668#true} assume 0 != test_~tmp___2~0#1; {1668#true} is VALID [2022-02-21 04:16:24,590 INFO L290 TraceCheckUtils]: 8: Hoare triple {1668#true} assume { :begin_inline_timeShift } true; {1668#true} is VALID [2022-02-21 04:16:24,590 INFO L290 TraceCheckUtils]: 9: Hoare triple {1668#true} assume !(0 != ~pumpRunning~0); {1670#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:24,591 INFO L290 TraceCheckUtils]: 10: Hoare triple {1670#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; {1670#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:24,591 INFO L290 TraceCheckUtils]: 11: Hoare triple {1670#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret36#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1; {1670#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:24,591 INFO L290 TraceCheckUtils]: 12: Hoare triple {1670#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1669#false} is VALID [2022-02-21 04:16:24,591 INFO L290 TraceCheckUtils]: 13: Hoare triple {1669#false} assume { :end_inline_processEnvironment__wrappee__base } true; {1669#false} is VALID [2022-02-21 04:16:24,594 INFO L290 TraceCheckUtils]: 14: Hoare triple {1669#false} assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; {1669#false} is VALID [2022-02-21 04:16:24,594 INFO L290 TraceCheckUtils]: 15: Hoare triple {1669#false} assume { :end_inline_processEnvironment } true; {1669#false} is VALID [2022-02-21 04:16:24,594 INFO L290 TraceCheckUtils]: 16: Hoare triple {1669#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_#t~ret29#1, __utac_acc__Specification2_spec__2_~tmp~3#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~3#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#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; {1669#false} is VALID [2022-02-21 04:16:24,594 INFO L290 TraceCheckUtils]: 17: Hoare triple {1669#false} __utac_acc__Specification2_spec__2_#t~ret28#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~3#1 := __utac_acc__Specification2_spec__2_#t~ret28#1;havoc __utac_acc__Specification2_spec__2_#t~ret28#1; {1669#false} is VALID [2022-02-21 04:16:24,595 INFO L290 TraceCheckUtils]: 18: Hoare triple {1669#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3#1);~methAndRunningLastTime~0 := 0; {1669#false} is VALID [2022-02-21 04:16:24,595 INFO L290 TraceCheckUtils]: 19: Hoare triple {1669#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {1669#false} is VALID [2022-02-21 04:16:24,595 INFO L290 TraceCheckUtils]: 20: Hoare triple {1669#false} assume { :end_inline_timeShift } true; {1669#false} is VALID [2022-02-21 04:16:24,595 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 04:16:24,595 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:24,596 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473976930] [2022-02-21 04:16:24,596 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473976930] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:24,596 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:24,596 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:16:24,596 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107674571] [2022-02-21 04:16:24,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:24,597 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:16:24,597 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:24,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:16:24,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:16:24,598 INFO L87 Difference]: Start difference. First operand 230 states and 308 transitions. cyclomatic complexity: 81 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 04:16:24,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:24,784 INFO L93 Difference]: Finished difference Result 289 states and 371 transitions. [2022-02-21 04:16:24,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:16:24,784 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 04:16:24,796 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 04:16:24,797 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 289 states and 371 transitions. [2022-02-21 04:16:24,802 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 205 [2022-02-21 04:16:24,808 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 289 states to 289 states and 371 transitions. [2022-02-21 04:16:24,808 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 289 [2022-02-21 04:16:24,808 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 289 [2022-02-21 04:16:24,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 289 states and 371 transitions. [2022-02-21 04:16:24,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:24,809 INFO L681 BuchiCegarLoop]: Abstraction has 289 states and 371 transitions. [2022-02-21 04:16:24,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states and 371 transitions. [2022-02-21 04:16:24,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2022-02-21 04:16:24,814 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:24,814 INFO L82 GeneralOperation]: Start isEquivalent. First operand 289 states and 371 transitions. Second operand has 289 states, 289 states have (on average 1.2837370242214532) internal successors, (371), 288 states have internal predecessors, (371), 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 04:16:24,815 INFO L74 IsIncluded]: Start isIncluded. First operand 289 states and 371 transitions. Second operand has 289 states, 289 states have (on average 1.2837370242214532) internal successors, (371), 288 states have internal predecessors, (371), 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 04:16:24,816 INFO L87 Difference]: Start difference. First operand 289 states and 371 transitions. Second operand has 289 states, 289 states have (on average 1.2837370242214532) internal successors, (371), 288 states have internal predecessors, (371), 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 04:16:24,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:24,821 INFO L93 Difference]: Finished difference Result 289 states and 371 transitions. [2022-02-21 04:16:24,821 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 371 transitions. [2022-02-21 04:16:24,821 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:24,821 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:24,822 INFO L74 IsIncluded]: Start isIncluded. First operand has 289 states, 289 states have (on average 1.2837370242214532) internal successors, (371), 288 states have internal predecessors, (371), 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 289 states and 371 transitions. [2022-02-21 04:16:24,823 INFO L87 Difference]: Start difference. First operand has 289 states, 289 states have (on average 1.2837370242214532) internal successors, (371), 288 states have internal predecessors, (371), 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 289 states and 371 transitions. [2022-02-21 04:16:24,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:24,828 INFO L93 Difference]: Finished difference Result 289 states and 371 transitions. [2022-02-21 04:16:24,828 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 371 transitions. [2022-02-21 04:16:24,828 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:24,828 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:24,828 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:24,829 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:24,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 289 states have (on average 1.2837370242214532) internal successors, (371), 288 states have internal predecessors, (371), 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 04:16:24,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 371 transitions. [2022-02-21 04:16:24,834 INFO L704 BuchiCegarLoop]: Abstraction has 289 states and 371 transitions. [2022-02-21 04:16:24,834 INFO L587 BuchiCegarLoop]: Abstraction has 289 states and 371 transitions. [2022-02-21 04:16:24,834 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:16:24,835 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 289 states and 371 transitions. [2022-02-21 04:16:24,835 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 205 [2022-02-21 04:16:24,836 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:24,836 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:24,836 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:24,836 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 04:16:24,837 INFO L791 eck$LassoCheckResult]: Stem: 2144#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 2049#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_~retValue_acc~5#1, main_~tmp~4#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 2050#L84 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2105#L77 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 2106#L92 main_#t~ret30#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret30#1;havoc main_#t~ret30#1; 1998#L592 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 1999#L567 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 2015#L471 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2016#L927-2 [2022-02-21 04:16:24,837 INFO L793 eck$LassoCheckResult]: Loop: 2016#L927-2 assume !false; 2210#L928 assume test_~splverifierCounter~0#1 < 4; 2099#L929 test_~tmp~9#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 2100#L937 assume !(0 != test_~tmp~9#1); 1973#L937-2 test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 2064#L947 assume !(0 != test_~tmp___0~2#1); 2033#L947-2 test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 2084#L957 assume 0 != test_~tmp___2~0#1; 1986#L963-2 assume { :begin_inline_timeShift } true; 1981#L714 assume !(0 != ~pumpRunning~0); 1982#L714-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 1968#L772 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret36#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1; 1969#L746-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1970#L693-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1971#L698-1 isHighWaterLevel_#t~ret48#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret48#1;havoc isHighWaterLevel_#t~ret48#1; 2124#L891-3 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2122#L891-5 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 2123#L897-1 processEnvironment__wrappee__methaneQuery_#t~ret36#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~5#1 := processEnvironment__wrappee__methaneQuery_#t~ret36#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret36#1; 2135#L750-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2137#L738-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2053#L746-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1991#L772-1 assume { :end_inline_processEnvironment } true; 1992#L721-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_#t~ret29#1, __utac_acc__Specification2_spec__2_~tmp~3#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~3#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#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; 2217#L653-3 __utac_acc__Specification2_spec__2_#t~ret28#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~3#1 := __utac_acc__Specification2_spec__2_#t~ret28#1;havoc __utac_acc__Specification2_spec__2_#t~ret28#1; 2215#L482 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3#1);~methAndRunningLastTime~0 := 0; 2212#L482-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 2211#L731 assume { :end_inline_timeShift } true; 2016#L927-2 [2022-02-21 04:16:24,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:24,837 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:16:24,838 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:24,838 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813719653] [2022-02-21 04:16:24,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:24,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:24,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:24,847 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:24,856 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:24,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:24,857 INFO L85 PathProgramCache]: Analyzing trace with hash -150535430, now seen corresponding path program 1 times [2022-02-21 04:16:24,857 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:24,857 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838794014] [2022-02-21 04:16:24,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:24,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:24,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:24,863 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:24,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:24,869 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:24,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:24,870 INFO L85 PathProgramCache]: Analyzing trace with hash 20239985, now seen corresponding path program 1 times [2022-02-21 04:16:24,870 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:24,870 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892238302] [2022-02-21 04:16:24,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:24,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:24,884 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:24,897 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:27,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:16:27 BoogieIcfgContainer [2022-02-21 04:16:27,558 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:16:27,559 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:16:27,559 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:16:27,559 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:16:27,560 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:22" (3/4) ... [2022-02-21 04:16:27,562 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:16:27,602 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:16:27,602 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:16:27,603 INFO L158 Benchmark]: Toolchain (without parser) took 5951.50ms. Allocated memory was 98.6MB in the beginning and 184.5MB in the end (delta: 86.0MB). Free memory was 66.0MB in the beginning and 130.2MB in the end (delta: -64.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-02-21 04:16:27,604 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory is still 55.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:16:27,604 INFO L158 Benchmark]: CACSL2BoogieTranslator took 423.43ms. Allocated memory was 98.6MB in the beginning and 153.1MB in the end (delta: 54.5MB). Free memory was 65.7MB in the beginning and 116.0MB in the end (delta: -50.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:16:27,604 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.65ms. Allocated memory is still 153.1MB. Free memory was 116.0MB in the beginning and 111.9MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:27,604 INFO L158 Benchmark]: Boogie Preprocessor took 46.90ms. Allocated memory is still 153.1MB. Free memory was 111.9MB in the beginning and 108.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:27,605 INFO L158 Benchmark]: RCFGBuilder took 645.29ms. Allocated memory is still 153.1MB. Free memory was 108.9MB in the beginning and 79.5MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-02-21 04:16:27,605 INFO L158 Benchmark]: BuchiAutomizer took 4710.16ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 79.5MB in the beginning and 132.3MB in the end (delta: -52.8MB). Peak memory consumption was 65.7MB. Max. memory is 16.1GB. [2022-02-21 04:16:27,606 INFO L158 Benchmark]: Witness Printer took 43.50ms. Allocated memory is still 184.5MB. Free memory was 132.3MB in the beginning and 130.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:27,607 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 98.6MB. Free memory is still 55.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 423.43ms. Allocated memory was 98.6MB in the beginning and 153.1MB in the end (delta: 54.5MB). Free memory was 65.7MB in the beginning and 116.0MB in the end (delta: -50.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.65ms. Allocated memory is still 153.1MB. Free memory was 116.0MB in the beginning and 111.9MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.90ms. Allocated memory is still 153.1MB. Free memory was 111.9MB in the beginning and 108.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 645.29ms. Allocated memory is still 153.1MB. Free memory was 108.9MB in the beginning and 79.5MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4710.16ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 79.5MB in the beginning and 132.3MB in the end (delta: -52.8MB). Peak memory consumption was 65.7MB. Max. memory is 16.1GB. * Witness Printer took 43.50ms. Allocated memory is still 184.5MB. Free memory was 132.3MB in the beginning and 130.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 289 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 169 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 289 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1323 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1323 mSDsluCounter, 1509 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1041 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69 IncrementalHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 468 mSDtfsCounter, 69 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 927]: 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@40cbfa06=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22454f66=29, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76b6beb1=0, tmp___0=0, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ef12878=0, retValue_acc=0, NULL=1, tmp=0, methaneLevelCritical=0, tmp=0, \result=0, tmp=1, retValue_acc=1, retValue_acc=0, \result=1, \result=1, retValue_acc=1, retValue_acc=0, tmp=0, tmp___2=29, methAndRunningLastTime=0, tmp=1, cleanupTimeShifts=4, \result=0, head=0, tmp___1=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e1258dc=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@658ecc69=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46e83b3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5aba26d4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b196a2b=0, tmp___0=0, \result=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@601ffb12=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 927]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L266] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L465] int methAndRunningLastTime ; [L504] int cleanupTimeShifts = 4; [L610] int waterLevel = 1; [L611] int methaneLevelCritical = 0; [L707] int pumpRunning = 0; [L708] int systemActive = 1; [L583] int retValue_acc ; [L584] int tmp ; [L588] FCALL select_helpers() [L589] FCALL select_features() [L590] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); [L590] RET, EXPR valid_product() [L590] tmp = valid_product() [L592] COND TRUE \read(tmp) [L594] FCALL setup() [L595] CALL runTest() [L576] CALL __utac_acc__Specification2_spec__1() [L470] methAndRunningLastTime = 0 [L576] RET __utac_acc__Specification2_spec__1() [L577] CALL test() [L918] int splverifierCounter ; [L919] int tmp ; [L920] int tmp___0 ; [L921] int tmp___1 ; [L922] int tmp___2 ; [L925] splverifierCounter = 0 Loop: [L927] COND TRUE 1 [L929] COND TRUE splverifierCounter < 4 [L935] tmp = __VERIFIER_nondet_int() [L937] COND FALSE !(\read(tmp)) [L945] tmp___0 = __VERIFIER_nondet_int() [L947] COND FALSE !(\read(tmp___0)) [L955] tmp___2 = __VERIFIER_nondet_int() [L957] COND TRUE \read(tmp___2) [L972] CALL timeShift() [L714] COND FALSE !(\read(pumpRunning)) [L721] COND TRUE \read(systemActive) [L723] CALL processEnvironment() [L769] int tmp ; [L772] COND FALSE !(\read(pumpRunning)) [L787] CALL processEnvironment__wrappee__methaneQuery() [L743] int tmp ; [L746] COND TRUE ! pumpRunning [L748] CALL, EXPR isHighWaterLevel() [L883] int retValue_acc ; [L884] int tmp ; [L885] int tmp___0 ; [L889] CALL, EXPR isHighWaterSensorDry() [L690] int retValue_acc ; [L693] COND TRUE waterLevel < 2 [L694] retValue_acc = 1 [L695] return (retValue_acc); [L889] RET, EXPR isHighWaterSensorDry() [L889] tmp = isHighWaterSensorDry() [L891] COND TRUE \read(tmp) [L892] tmp___0 = 0 [L896] retValue_acc = tmp___0 [L897] return (retValue_acc); [L748] RET, EXPR isHighWaterLevel() [L748] tmp = isHighWaterLevel() [L750] COND FALSE !(\read(tmp)) [L756] FCALL processEnvironment__wrappee__base() [L787] RET processEnvironment__wrappee__methaneQuery() [L723] RET processEnvironment() [L729] CALL __utac_acc__Specification2_spec__2() [L475] int tmp ; [L476] int tmp___0 ; [L480] CALL, EXPR isMethaneLevelCritical() [L649] int retValue_acc ; [L652] retValue_acc = methaneLevelCritical [L653] return (retValue_acc); [L480] RET, EXPR isMethaneLevelCritical() [L480] tmp = isMethaneLevelCritical() [L482] COND FALSE !(\read(tmp)) [L498] methAndRunningLastTime = 0 [L729] RET __utac_acc__Specification2_spec__2() [L972] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:16:27,648 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)