./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product24.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_product24.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 4ef00a1384831ff7ef4c918e957ad9d5bbb60c08f91b05efbf00076fbc049000 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:16:03,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:16:03,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:16:03,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:16:03,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:16:03,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:16:03,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:16:03,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:16:03,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:16:03,939 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:16:03,940 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:16:03,941 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:16:03,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:16:03,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:16:03,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:16:03,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:16:03,949 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:16:03,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:16:03,952 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:16:03,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:16:03,958 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:16:03,959 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:16:03,961 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:16:03,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:16:03,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:16:03,968 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:16:03,968 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:16:03,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:16:03,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:16:03,971 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:16:03,971 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:16:03,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:16:03,973 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:16:03,975 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:16:03,976 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:16:03,977 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:16:03,977 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:16:03,977 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:16:03,978 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:16:03,978 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:16:03,979 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:16:03,980 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:16:04,010 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:16:04,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:16:04,011 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:16:04,011 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:16:04,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:16:04,013 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:16:04,013 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:16:04,013 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:16:04,013 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:16:04,013 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:16:04,014 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:16:04,014 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:16:04,014 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:16:04,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:16:04,015 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:16:04,015 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:16:04,015 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:16:04,016 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:16:04,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:16:04,016 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:16:04,016 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:16:04,016 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:16:04,017 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:16:04,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:16:04,017 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:16:04,017 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:16:04,017 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:16:04,017 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:16:04,018 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:16:04,018 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:16:04,018 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:16:04,019 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:16:04,019 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ef00a1384831ff7ef4c918e957ad9d5bbb60c08f91b05efbf00076fbc049000 [2022-02-21 04:16:04,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:16:04,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:16:04,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:16:04,295 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:16:04,299 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:16:04,300 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product24.cil.c [2022-02-21 04:16:04,353 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae2ee97a1/475ece8f23914d98a509d9a641573baa/FLAG3f58fda13 [2022-02-21 04:16:04,826 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:16:04,827 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product24.cil.c [2022-02-21 04:16:04,839 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae2ee97a1/475ece8f23914d98a509d9a641573baa/FLAG3f58fda13 [2022-02-21 04:16:05,171 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae2ee97a1/475ece8f23914d98a509d9a641573baa [2022-02-21 04:16:05,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:16:05,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:16:05,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:05,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:16:05,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:16:05,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:05" (1/1) ... [2022-02-21 04:16:05,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c9c6311 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:05, skipping insertion in model container [2022-02-21 04:16:05,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:05" (1/1) ... [2022-02-21 04:16:05,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:16:05,236 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:16:05,529 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_product24.cil.c[17451,17464] [2022-02-21 04:16:05,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:05,550 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:16:05,620 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_product24.cil.c[17451,17464] [2022-02-21 04:16:05,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:05,643 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:16:05,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:05 WrapperNode [2022-02-21 04:16:05,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:05,646 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:05,646 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:16:05,646 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:16:05,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:05" (1/1) ... [2022-02-21 04:16:05,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:05" (1/1) ... [2022-02-21 04:16:05,728 INFO L137 Inliner]: procedures = 56, calls = 157, calls flagged for inlining = 54, calls inlined = 81, statements flattened = 583 [2022-02-21 04:16:05,732 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:05,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:16:05,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:16:05,733 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:16:05,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:05" (1/1) ... [2022-02-21 04:16:05,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:05" (1/1) ... [2022-02-21 04:16:05,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:05" (1/1) ... [2022-02-21 04:16:05,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:05" (1/1) ... [2022-02-21 04:16:05,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:05" (1/1) ... [2022-02-21 04:16:05,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:05" (1/1) ... [2022-02-21 04:16:05,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:05" (1/1) ... [2022-02-21 04:16:05,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:16:05,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:16:05,794 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:16:05,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:16:05,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:05" (1/1) ... [2022-02-21 04:16:05,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:16:05,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:16:05,833 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 04:16:05,854 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 04:16:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:16:05,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:16:05,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:16:05,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:16:05,967 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:16:05,968 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:16:06,510 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:16:06,522 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:16:06,523 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:16:06,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:06 BoogieIcfgContainer [2022-02-21 04:16:06,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:16:06,526 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:16:06,526 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:16:06,529 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:16:06,530 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:06,530 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:16:05" (1/3) ... [2022-02-21 04:16:06,531 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@240ebaf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:06, skipping insertion in model container [2022-02-21 04:16:06,531 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:06,531 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:05" (2/3) ... [2022-02-21 04:16:06,531 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@240ebaf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:06, skipping insertion in model container [2022-02-21 04:16:06,531 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:06,531 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:06" (3/3) ... [2022-02-21 04:16:06,532 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product24.cil.c [2022-02-21 04:16:06,572 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:16:06,573 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:16:06,573 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:16:06,573 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:16:06,573 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:16:06,573 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:16:06,573 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:16:06,573 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:16:06,591 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 159 states, 158 states have (on average 1.3544303797468353) internal successors, (214), 158 states have internal predecessors, (214), 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 04:16:06,639 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 103 [2022-02-21 04:16:06,640 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:06,640 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:06,645 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:06,645 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:06,645 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:16:06,647 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 159 states, 158 states have (on average 1.3544303797468353) internal successors, (214), 158 states have internal predecessors, (214), 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 04:16:06,670 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 103 [2022-02-21 04:16:06,671 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:06,671 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:06,672 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:06,672 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:06,676 INFO L791 eck$LassoCheckResult]: Stem: 138#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 51#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret44#1, main_~retValue_acc~8#1, main_~tmp~7#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 106#L726true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 83#L719true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 114#L734true main_#t~ret44#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret44#1;havoc main_#t~ret44#1; 9#L823true assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 58#L798true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 88#L844true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 121#L276-2true [2022-02-21 04:16:06,679 INFO L793 eck$LassoCheckResult]: Loop: 121#L276-2true assume !false; 151#L277true assume test_~splverifierCounter~0#1 < 4; 159#L278true test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 98#L286true assume !(0 != test_~tmp~3#1); 19#L286-2true test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 69#L296true assume !(0 != test_~tmp___0~1#1); 47#L296-2true test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 152#L306true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 124#L314true assume !(0 != test_~tmp___1~0#1); 91#L314-2true assume { :begin_inline_timeShift } true; 27#L69true assume !(0 != ~pumpRunning~0); 120#L69-2true assume !(0 != ~systemActive~0); 135#L76-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret45#1, __utac_acc__Specification2_spec__2_#t~ret46#1, __utac_acc__Specification2_spec__2_~tmp~8#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~8#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 147#L930-1true __utac_acc__Specification2_spec__2_#t~ret45#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~8#1 := __utac_acc__Specification2_spec__2_#t~ret45#1;havoc __utac_acc__Specification2_spec__2_#t~ret45#1; 25#L855true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8#1);~methAndRunningLastTime~0 := 0; 22#L855-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 8#L86true assume { :end_inline_timeShift } true; 121#L276-2true [2022-02-21 04:16:06,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:06,685 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:16:06,694 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:06,694 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898355874] [2022-02-21 04:16:06,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:06,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:06,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:06,847 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:06,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:06,901 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:06,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:06,904 INFO L85 PathProgramCache]: Analyzing trace with hash -326517673, now seen corresponding path program 1 times [2022-02-21 04:16:06,904 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:06,904 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652779210] [2022-02-21 04:16:06,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:06,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:06,913 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:06,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:06,920 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:06,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:06,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1062459250, now seen corresponding path program 1 times [2022-02-21 04:16:06,922 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:06,922 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130954266] [2022-02-21 04:16:06,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:06,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:06,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:07,057 INFO L290 TraceCheckUtils]: 0: Hoare triple {167#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {169#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:07,057 INFO L290 TraceCheckUtils]: 1: Hoare triple {169#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret44#1, main_~retValue_acc~8#1, main_~tmp~7#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; {169#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:07,058 INFO L290 TraceCheckUtils]: 2: Hoare triple {169#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {169#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:07,059 INFO L290 TraceCheckUtils]: 3: Hoare triple {169#(= 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~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; {170#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:16:07,059 INFO L290 TraceCheckUtils]: 4: Hoare triple {170#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret44#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret44#1;havoc main_#t~ret44#1; {171#(= |ULTIMATE.start_main_~tmp~7#1| ~systemActive~0)} is VALID [2022-02-21 04:16:07,060 INFO L290 TraceCheckUtils]: 5: Hoare triple {171#(= |ULTIMATE.start_main_~tmp~7#1| ~systemActive~0)} assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; {172#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:07,060 INFO L290 TraceCheckUtils]: 6: Hoare triple {172#(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; {172#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:07,061 INFO L290 TraceCheckUtils]: 7: Hoare triple {172#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {172#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:07,061 INFO L290 TraceCheckUtils]: 8: Hoare triple {172#(not (= 0 ~systemActive~0))} assume !false; {172#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:07,062 INFO L290 TraceCheckUtils]: 9: Hoare triple {172#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {172#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:07,063 INFO L290 TraceCheckUtils]: 10: Hoare triple {172#(not (= 0 ~systemActive~0))} test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; {172#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:07,063 INFO L290 TraceCheckUtils]: 11: Hoare triple {172#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~3#1); {172#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:07,064 INFO L290 TraceCheckUtils]: 12: Hoare triple {172#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; {172#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:07,064 INFO L290 TraceCheckUtils]: 13: Hoare triple {172#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {172#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:07,065 INFO L290 TraceCheckUtils]: 14: Hoare triple {172#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; {172#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:07,065 INFO L290 TraceCheckUtils]: 15: Hoare triple {172#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {172#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:07,066 INFO L290 TraceCheckUtils]: 16: Hoare triple {172#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___1~0#1); {172#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:07,066 INFO L290 TraceCheckUtils]: 17: Hoare triple {172#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {172#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:07,067 INFO L290 TraceCheckUtils]: 18: Hoare triple {172#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {172#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:07,067 INFO L290 TraceCheckUtils]: 19: Hoare triple {172#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {168#false} is VALID [2022-02-21 04:16:07,068 INFO L290 TraceCheckUtils]: 20: Hoare triple {168#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret45#1, __utac_acc__Specification2_spec__2_#t~ret46#1, __utac_acc__Specification2_spec__2_~tmp~8#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~8#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; {168#false} is VALID [2022-02-21 04:16:07,068 INFO L290 TraceCheckUtils]: 21: Hoare triple {168#false} __utac_acc__Specification2_spec__2_#t~ret45#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~8#1 := __utac_acc__Specification2_spec__2_#t~ret45#1;havoc __utac_acc__Specification2_spec__2_#t~ret45#1; {168#false} is VALID [2022-02-21 04:16:07,068 INFO L290 TraceCheckUtils]: 22: Hoare triple {168#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8#1);~methAndRunningLastTime~0 := 0; {168#false} is VALID [2022-02-21 04:16:07,068 INFO L290 TraceCheckUtils]: 23: Hoare triple {168#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {168#false} is VALID [2022-02-21 04:16:07,068 INFO L290 TraceCheckUtils]: 24: Hoare triple {168#false} assume { :end_inline_timeShift } true; {168#false} is VALID [2022-02-21 04:16:07,070 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 04:16:07,070 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:07,070 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130954266] [2022-02-21 04:16:07,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130954266] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:07,075 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:07,075 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:16:07,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45356924] [2022-02-21 04:16:07,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:07,220 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:07,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:16:07,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:16:07,262 INFO L87 Difference]: Start difference. First operand has 159 states, 158 states have (on average 1.3544303797468353) internal successors, (214), 158 states have internal predecessors, (214), 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 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 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 04:16:08,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:08,434 INFO L93 Difference]: Finished difference Result 517 states and 672 transitions. [2022-02-21 04:16:08,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:16:08,435 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 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 04:16:08,461 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:08,465 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 517 states and 672 transitions. [2022-02-21 04:16:08,491 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 336 [2022-02-21 04:16:08,514 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 517 states to 477 states and 632 transitions. [2022-02-21 04:16:08,516 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 477 [2022-02-21 04:16:08,516 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 477 [2022-02-21 04:16:08,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 477 states and 632 transitions. [2022-02-21 04:16:08,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:08,519 INFO L681 BuchiCegarLoop]: Abstraction has 477 states and 632 transitions. [2022-02-21 04:16:08,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states and 632 transitions. [2022-02-21 04:16:08,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 201. [2022-02-21 04:16:08,551 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:08,553 INFO L82 GeneralOperation]: Start isEquivalent. First operand 477 states and 632 transitions. Second operand has 201 states, 201 states have (on average 1.328358208955224) internal successors, (267), 200 states have internal predecessors, (267), 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 04:16:08,554 INFO L74 IsIncluded]: Start isIncluded. First operand 477 states and 632 transitions. Second operand has 201 states, 201 states have (on average 1.328358208955224) internal successors, (267), 200 states have internal predecessors, (267), 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 04:16:08,555 INFO L87 Difference]: Start difference. First operand 477 states and 632 transitions. Second operand has 201 states, 201 states have (on average 1.328358208955224) internal successors, (267), 200 states have internal predecessors, (267), 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 04:16:08,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:08,570 INFO L93 Difference]: Finished difference Result 477 states and 632 transitions. [2022-02-21 04:16:08,570 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 632 transitions. [2022-02-21 04:16:08,574 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:08,575 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:08,575 INFO L74 IsIncluded]: Start isIncluded. First operand has 201 states, 201 states have (on average 1.328358208955224) internal successors, (267), 200 states have internal predecessors, (267), 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 477 states and 632 transitions. [2022-02-21 04:16:08,576 INFO L87 Difference]: Start difference. First operand has 201 states, 201 states have (on average 1.328358208955224) internal successors, (267), 200 states have internal predecessors, (267), 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 477 states and 632 transitions. [2022-02-21 04:16:08,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:08,591 INFO L93 Difference]: Finished difference Result 477 states and 632 transitions. [2022-02-21 04:16:08,591 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 632 transitions. [2022-02-21 04:16:08,598 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:08,599 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:08,599 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:08,599 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:08,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 201 states have (on average 1.328358208955224) internal successors, (267), 200 states have internal predecessors, (267), 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 04:16:08,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 267 transitions. [2022-02-21 04:16:08,614 INFO L704 BuchiCegarLoop]: Abstraction has 201 states and 267 transitions. [2022-02-21 04:16:08,614 INFO L587 BuchiCegarLoop]: Abstraction has 201 states and 267 transitions. [2022-02-21 04:16:08,614 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:16:08,614 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 201 states and 267 transitions. [2022-02-21 04:16:08,617 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 141 [2022-02-21 04:16:08,617 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:08,617 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:08,618 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:08,618 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:08,618 INFO L791 eck$LassoCheckResult]: Stem: 836#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 764#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret44#1, main_~retValue_acc~8#1, main_~tmp~7#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 765#L726 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 805#L719 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 806#L734 main_#t~ret44#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret44#1;havoc main_#t~ret44#1; 700#L823 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 701#L798 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 777#L844 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 699#L276-2 [2022-02-21 04:16:08,619 INFO L793 eck$LassoCheckResult]: Loop: 699#L276-2 assume !false; 828#L277 assume test_~splverifierCounter~0#1 < 4; 838#L278 test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 817#L286 assume !(0 != test_~tmp~3#1); 717#L286-2 test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 718#L296 assume !(0 != test_~tmp___0~1#1); 723#L296-2 test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 759#L306 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 803#L259 assume { :end_inline_startSystem } true; 804#L314-2 assume { :begin_inline_timeShift } true; 728#L69 assume !(0 != ~pumpRunning~0); 729#L69-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 827#L127 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret4#1, processEnvironment__wrappee__lowWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~0#1; 819#L101-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 820#L93-3 assume { :end_inline_processEnvironment__wrappee__base } true; 761#L101-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 735#L127-1 assume { :end_inline_processEnvironment } true; 821#L76-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret45#1, __utac_acc__Specification2_spec__2_#t~ret46#1, __utac_acc__Specification2_spec__2_~tmp~8#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~8#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 835#L930-1 __utac_acc__Specification2_spec__2_#t~ret45#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~8#1 := __utac_acc__Specification2_spec__2_#t~ret45#1;havoc __utac_acc__Specification2_spec__2_#t~ret45#1; 726#L855 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8#1);~methAndRunningLastTime~0 := 0; 721#L855-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 698#L86 assume { :end_inline_timeShift } true; 699#L276-2 [2022-02-21 04:16:08,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:08,620 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:16:08,620 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:08,620 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663804292] [2022-02-21 04:16:08,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:08,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:08,635 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:08,648 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:08,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:08,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1015807564, now seen corresponding path program 1 times [2022-02-21 04:16:08,649 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:08,650 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707732704] [2022-02-21 04:16:08,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:08,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:08,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:08,656 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:08,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:08,661 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:08,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:08,662 INFO L85 PathProgramCache]: Analyzing trace with hash -573595683, now seen corresponding path program 1 times [2022-02-21 04:16:08,662 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:08,662 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439591518] [2022-02-21 04:16:08,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:08,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:08,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:08,678 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:08,694 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:11,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:16:11 BoogieIcfgContainer [2022-02-21 04:16:11,652 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:16:11,653 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:16:11,653 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:16:11,653 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:16:11,654 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:06" (3/4) ... [2022-02-21 04:16:11,655 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:16:11,691 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:16:11,692 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:16:11,693 INFO L158 Benchmark]: Toolchain (without parser) took 6516.39ms. Allocated memory was 111.1MB in the beginning and 195.0MB in the end (delta: 83.9MB). Free memory was 82.1MB in the beginning and 112.8MB in the end (delta: -30.8MB). Peak memory consumption was 52.7MB. Max. memory is 16.1GB. [2022-02-21 04:16:11,693 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 111.1MB. Free memory was 65.6MB in the beginning and 65.5MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:16:11,694 INFO L158 Benchmark]: CACSL2BoogieTranslator took 465.29ms. Allocated memory is still 111.1MB. Free memory was 81.9MB in the beginning and 73.0MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:16:11,694 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.28ms. Allocated memory is still 111.1MB. Free memory was 72.8MB in the beginning and 68.9MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:11,695 INFO L158 Benchmark]: Boogie Preprocessor took 60.63ms. Allocated memory is still 111.1MB. Free memory was 68.9MB in the beginning and 66.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:11,695 INFO L158 Benchmark]: RCFGBuilder took 731.57ms. Allocated memory was 111.1MB in the beginning and 153.1MB in the end (delta: 41.9MB). Free memory was 66.3MB in the beginning and 117.5MB in the end (delta: -51.2MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2022-02-21 04:16:11,696 INFO L158 Benchmark]: BuchiAutomizer took 5126.17ms. Allocated memory was 153.1MB in the beginning and 195.0MB in the end (delta: 41.9MB). Free memory was 117.5MB in the beginning and 116.0MB in the end (delta: 1.5MB). Peak memory consumption was 104.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:11,696 INFO L158 Benchmark]: Witness Printer took 39.17ms. Allocated memory is still 195.0MB. Free memory was 116.0MB in the beginning and 112.8MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:11,698 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 0.20ms. Allocated memory is still 111.1MB. Free memory was 65.6MB in the beginning and 65.5MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 465.29ms. Allocated memory is still 111.1MB. Free memory was 81.9MB in the beginning and 73.0MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.28ms. Allocated memory is still 111.1MB. Free memory was 72.8MB in the beginning and 68.9MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.63ms. Allocated memory is still 111.1MB. Free memory was 68.9MB in the beginning and 66.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 731.57ms. Allocated memory was 111.1MB in the beginning and 153.1MB in the end (delta: 41.9MB). Free memory was 66.3MB in the beginning and 117.5MB in the end (delta: -51.2MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 5126.17ms. Allocated memory was 153.1MB in the beginning and 195.0MB in the end (delta: 41.9MB). Free memory was 117.5MB in the beginning and 116.0MB in the end (delta: 1.5MB). Peak memory consumption was 104.1MB. Max. memory is 16.1GB. * Witness Printer took 39.17ms. Allocated memory is still 195.0MB. Free memory was 116.0MB in the beginning and 112.8MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 201 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.5s. Construction of modules took 0.0s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 276 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 201 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1129 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1129 mSDsluCounter, 1380 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1171 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 209 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 276]: 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@430d0237=0, retValue_acc=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c4f6e19=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@775464b1=0, methaneLevelCritical=0, \result=0, tmp=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56abb1bf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78b8266b=0, retValue_acc=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@771c56f6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@435c67db=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f05f88e=29, tmp=1, tmp___2=29, methAndRunningLastTime=0, cleanupTimeShifts=4, tmp=0, \result=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23f0a026=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp___0=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 276]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L61] int pumpRunning = 0; [L62] int systemActive = 1; [L504] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L739] int cleanupTimeShifts = 4; [L838] int methAndRunningLastTime ; [L887] int waterLevel = 1; [L888] int methaneLevelCritical = 0; [L814] int retValue_acc ; [L815] int tmp ; [L819] FCALL select_helpers() [L820] FCALL select_features() [L821] CALL, EXPR valid_product() [L730] int retValue_acc ; [L733] retValue_acc = 1 [L734] return (retValue_acc); [L821] RET, EXPR valid_product() [L821] tmp = valid_product() [L823] COND TRUE \read(tmp) [L825] FCALL setup() [L826] CALL runTest() [L807] CALL __utac_acc__Specification2_spec__1() [L843] methAndRunningLastTime = 0 [L807] RET __utac_acc__Specification2_spec__1() [L808] CALL test() [L267] int splverifierCounter ; [L268] int tmp ; [L269] int tmp___0 ; [L270] int tmp___1 ; [L271] int tmp___2 ; [L274] splverifierCounter = 0 Loop: [L276] COND TRUE 1 [L278] COND TRUE splverifierCounter < 4 [L284] tmp = __VERIFIER_nondet_int() [L286] COND FALSE !(\read(tmp)) [L294] tmp___0 = __VERIFIER_nondet_int() [L296] COND FALSE !(\read(tmp___0)) [L304] tmp___2 = __VERIFIER_nondet_int() [L306] COND TRUE \read(tmp___2) [L308] CALL startSystem() [L258] systemActive = 1 [L308] RET startSystem() [L323] CALL timeShift() [L69] COND FALSE !(\read(pumpRunning)) [L76] COND TRUE \read(systemActive) [L78] CALL processEnvironment() [L124] int tmp ; [L127] COND FALSE !(\read(pumpRunning)) [L142] CALL processEnvironment__wrappee__lowWaterSensor() [L98] int tmp ; [L101] COND FALSE !(\read(pumpRunning)) [L116] FCALL processEnvironment__wrappee__base() [L142] RET processEnvironment__wrappee__lowWaterSensor() [L78] RET processEnvironment() [L84] CALL __utac_acc__Specification2_spec__2() [L848] int tmp ; [L849] int tmp___0 ; [L853] CALL, EXPR isMethaneLevelCritical() [L926] int retValue_acc ; [L929] retValue_acc = methaneLevelCritical [L930] return (retValue_acc); [L853] RET, EXPR isMethaneLevelCritical() [L853] tmp = isMethaneLevelCritical() [L855] COND FALSE !(\read(tmp)) [L871] methAndRunningLastTime = 0 [L84] RET __utac_acc__Specification2_spec__2() [L323] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:16:11,742 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)