./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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_product64.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 59d05b45c2855b02eb92cf6428285b3e4820a09d46d6a6d0a0748347de3adbb6 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 20:24:45,902 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 20:24:45,904 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 20:24:45,942 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 20:24:45,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 20:24:45,945 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 20:24:45,946 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 20:24:45,948 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 20:24:45,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 20:24:45,952 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 20:24:45,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 20:24:45,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 20:24:45,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 20:24:45,956 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 20:24:45,957 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 20:24:45,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 20:24:45,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 20:24:45,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 20:24:45,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 20:24:45,966 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 20:24:45,967 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 20:24:45,968 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 20:24:45,969 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 20:24:45,970 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 20:24:45,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 20:24:45,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 20:24:45,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 20:24:45,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 20:24:45,976 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 20:24:45,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 20:24:45,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 20:24:45,977 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 20:24:45,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 20:24:45,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 20:24:45,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 20:24:45,981 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 20:24:45,982 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 20:24:45,982 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 20:24:45,982 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 20:24:45,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 20:24:45,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 20:24:45,984 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-22 20:24:46,008 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 20:24:46,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 20:24:46,009 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 20:24:46,009 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 20:24:46,010 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 20:24:46,010 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 20:24:46,010 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 20:24:46,010 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-22 20:24:46,010 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-22 20:24:46,011 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-22 20:24:46,011 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-22 20:24:46,011 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-22 20:24:46,012 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-22 20:24:46,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 20:24:46,012 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 20:24:46,012 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-22 20:24:46,012 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 20:24:46,012 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 20:24:46,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 20:24:46,013 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-22 20:24:46,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-22 20:24:46,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-22 20:24:46,013 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 20:24:46,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 20:24:46,014 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-22 20:24:46,014 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 20:24:46,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-22 20:24:46,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 20:24:46,014 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 20:24:46,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 20:24:46,015 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 20:24:46,015 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 20:24:46,016 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-22 20:24:46,016 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59d05b45c2855b02eb92cf6428285b3e4820a09d46d6a6d0a0748347de3adbb6 [2021-12-22 20:24:46,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 20:24:46,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 20:24:46,241 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 20:24:46,242 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 20:24:46,242 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 20:24:46,243 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c [2021-12-22 20:24:46,330 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4243752ea/e0d1ae979735454a91c4b2acb5405717/FLAG37c80d3f5 [2021-12-22 20:24:46,742 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 20:24:46,743 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c [2021-12-22 20:24:46,754 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4243752ea/e0d1ae979735454a91c4b2acb5405717/FLAG37c80d3f5 [2021-12-22 20:24:46,763 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4243752ea/e0d1ae979735454a91c4b2acb5405717 [2021-12-22 20:24:46,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 20:24:46,766 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 20:24:46,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 20:24:46,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 20:24:46,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 20:24:46,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:24:46" (1/1) ... [2021-12-22 20:24:46,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49fac52b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:46, skipping insertion in model container [2021-12-22 20:24:46,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:24:46" (1/1) ... [2021-12-22 20:24:46,789 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 20:24:46,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 20:24:47,055 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_product64.cil.c[6823,6836] [2021-12-22 20:24:47,132 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:24:47,139 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 20:24:47,158 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_product64.cil.c[6823,6836] [2021-12-22 20:24:47,187 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:24:47,199 INFO L208 MainTranslator]: Completed translation [2021-12-22 20:24:47,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:47 WrapperNode [2021-12-22 20:24:47,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 20:24:47,201 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 20:24:47,201 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 20:24:47,201 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 20:24:47,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:47" (1/1) ... [2021-12-22 20:24:47,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:47" (1/1) ... [2021-12-22 20:24:47,276 INFO L137 Inliner]: procedures = 60, calls = 164, calls flagged for inlining = 61, calls inlined = 177, statements flattened = 1279 [2021-12-22 20:24:47,276 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 20:24:47,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 20:24:47,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 20:24:47,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 20:24:47,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:47" (1/1) ... [2021-12-22 20:24:47,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:47" (1/1) ... [2021-12-22 20:24:47,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:47" (1/1) ... [2021-12-22 20:24:47,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:47" (1/1) ... [2021-12-22 20:24:47,309 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:47" (1/1) ... [2021-12-22 20:24:47,320 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:47" (1/1) ... [2021-12-22 20:24:47,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:47" (1/1) ... [2021-12-22 20:24:47,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 20:24:47,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 20:24:47,328 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 20:24:47,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 20:24:47,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:47" (1/1) ... [2021-12-22 20:24:47,352 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:24:47,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:24:47,395 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) [2021-12-22 20:24:47,452 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 [2021-12-22 20:24:47,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 20:24:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 20:24:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 20:24:47,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 20:24:47,549 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 20:24:47,550 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 20:24:48,036 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 20:24:48,049 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 20:24:48,051 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-22 20:24:48,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:24:48 BoogieIcfgContainer [2021-12-22 20:24:48,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 20:24:48,053 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-22 20:24:48,054 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-22 20:24:48,056 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-22 20:24:48,057 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:24:48,057 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.12 08:24:46" (1/3) ... [2021-12-22 20:24:48,058 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@f3779d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:24:48, skipping insertion in model container [2021-12-22 20:24:48,058 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:24:48,058 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:47" (2/3) ... [2021-12-22 20:24:48,058 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@f3779d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:24:48, skipping insertion in model container [2021-12-22 20:24:48,058 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:24:48,058 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:24:48" (3/3) ... [2021-12-22 20:24:48,059 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product64.cil.c [2021-12-22 20:24:48,088 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-22 20:24:48,088 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-22 20:24:48,088 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-22 20:24:48,088 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-22 20:24:48,089 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-22 20:24:48,089 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-22 20:24:48,089 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-22 20:24:48,089 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-22 20:24:48,103 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 327 states, 326 states have (on average 1.3558282208588956) internal successors, (442), 326 states have internal predecessors, (442), 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) [2021-12-22 20:24:48,125 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 215 [2021-12-22 20:24:48,126 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:24:48,126 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:24:48,132 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:24:48,139 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:24:48,140 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-22 20:24:48,142 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 327 states, 326 states have (on average 1.3558282208588956) internal successors, (442), 326 states have internal predecessors, (442), 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) [2021-12-22 20:24:48,151 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 215 [2021-12-22 20:24:48,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:24:48,152 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:24:48,153 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:24:48,153 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:24:48,156 INFO L791 eck$LassoCheckResult]: Stem: 316#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 196#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret31#1, main_~retValue_acc~10#1, main_~tmp~8#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 232#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 321#L68true 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; 32#L83true main_#t~ret31#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 126#L671true assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 135#L647true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 153#L451true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 20#L377-2true [2021-12-22 20:24:48,157 INFO L793 eck$LassoCheckResult]: Loop: 20#L377-2true assume !false; 170#L378true assume test_~splverifierCounter~0#1 < 4; 116#L379true test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 215#L387true assume !(0 != test_~tmp~6#1); 288#L387-2true test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 138#L397true assume !(0 != test_~tmp___0~2#1); 173#L397-2true test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 18#L407true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 121#L415true assume !(0 != test_~tmp___1~0#1); 156#L415-2true assume { :begin_inline_timeShift } true; 28#L108true assume !(0 != ~pumpRunning~0); 280#L108-2true assume !(0 != ~systemActive~0); 73#L115-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret24#1, __utac_acc__Specification2_spec__2_#t~ret25#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~7#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 301#L528-5true __utac_acc__Specification2_spec__2_#t~ret24#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~7#1 := __utac_acc__Specification2_spec__2_#t~ret24#1;havoc __utac_acc__Specification2_spec__2_#t~ret24#1; 92#L462true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7#1);~methAndRunningLastTime~0 := 0; 309#L462-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 274#L125true assume { :end_inline_timeShift } true; 20#L377-2true [2021-12-22 20:24:48,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:48,161 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-12-22 20:24:48,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:48,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471409741] [2021-12-22 20:24:48,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:48,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:48,261 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:24:48,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:48,314 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:24:48,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:48,316 INFO L85 PathProgramCache]: Analyzing trace with hash 821870935, now seen corresponding path program 1 times [2021-12-22 20:24:48,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:48,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949709519] [2021-12-22 20:24:48,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:48,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:48,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:48,334 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:24:48,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:48,344 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:24:48,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:48,346 INFO L85 PathProgramCache]: Analyzing trace with hash 85929358, now seen corresponding path program 1 times [2021-12-22 20:24:48,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:48,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770371853] [2021-12-22 20:24:48,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:48,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:24:48,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 20:24:48,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 20:24:48,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770371853] [2021-12-22 20:24:48,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770371853] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 20:24:48,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 20:24:48,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 20:24:48,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210102598] [2021-12-22 20:24:48,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 20:24:48,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 20:24:48,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 20:24:48,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-22 20:24:48,663 INFO L87 Difference]: Start difference. First operand has 327 states, 326 states have (on average 1.3558282208588956) internal successors, (442), 326 states have internal predecessors, (442), 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) [2021-12-22 20:24:48,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 20:24:48,838 INFO L93 Difference]: Finished difference Result 1021 states and 1356 transitions. [2021-12-22 20:24:48,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 20:24:48,843 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1021 states and 1356 transitions. [2021-12-22 20:24:48,856 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 672 [2021-12-22 20:24:48,864 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1021 states to 981 states and 1316 transitions. [2021-12-22 20:24:48,865 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 981 [2021-12-22 20:24:48,866 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 981 [2021-12-22 20:24:48,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 981 states and 1316 transitions. [2021-12-22 20:24:48,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 20:24:48,870 INFO L681 BuchiCegarLoop]: Abstraction has 981 states and 1316 transitions. [2021-12-22 20:24:48,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states and 1316 transitions. [2021-12-22 20:24:48,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 369. [2021-12-22 20:24:48,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 369 states have (on average 1.3414634146341464) internal successors, (495), 368 states have internal predecessors, (495), 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) [2021-12-22 20:24:48,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 495 transitions. [2021-12-22 20:24:48,901 INFO L704 BuchiCegarLoop]: Abstraction has 369 states and 495 transitions. [2021-12-22 20:24:48,901 INFO L587 BuchiCegarLoop]: Abstraction has 369 states and 495 transitions. [2021-12-22 20:24:48,901 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-22 20:24:48,901 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 369 states and 495 transitions. [2021-12-22 20:24:48,903 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 253 [2021-12-22 20:24:48,903 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:24:48,903 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:24:48,904 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:24:48,904 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] [2021-12-22 20:24:48,904 INFO L791 eck$LassoCheckResult]: Stem: 1680#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1631#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret31#1, main_~retValue_acc~10#1, main_~tmp~8#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 1632#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1660#L68 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; 1422#L83 main_#t~ret31#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 1423#L671 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 1576#L647 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1586#L451 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1402#L377-2 [2021-12-22 20:24:48,905 INFO L793 eck$LassoCheckResult]: Loop: 1402#L377-2 assume !false; 1403#L378 assume test_~splverifierCounter~0#1 < 4; 1566#L379 test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 1567#L387 assume !(0 != test_~tmp~6#1); 1618#L387-2 test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 1588#L397 assume !(0 != test_~tmp___0~2#1); 1589#L397-2 test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 1395#L407 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1396#L360 assume { :end_inline_startSystem } true; 1409#L415-2 assume { :begin_inline_timeShift } true; 1416#L108 assume !(0 != ~pumpRunning~0); 1417#L108-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1673#L192 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret9#1, isMethaneAlarm_~retValue_acc~2#1;havoc isMethaneAlarm_~retValue_acc~2#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; 1640#L528 isMethaneAlarm_#t~ret9#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~2#1 := isMethaneAlarm_#t~ret9#1;havoc isMethaneAlarm_#t~ret9#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; 1641#L253 processEnvironment_#t~ret7#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret7#1;havoc processEnvironment_#t~ret7#1; 1510#L196 assume 0 != processEnvironment_~tmp~2#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1511#L243-1 assume { :end_inline_deactivatePump } true; 1587#L192-1 assume { :end_inline_processEnvironment } true; 1502#L115-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret24#1, __utac_acc__Specification2_spec__2_#t~ret25#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~7#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1503#L528-5 __utac_acc__Specification2_spec__2_#t~ret24#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~7#1 := __utac_acc__Specification2_spec__2_#t~ret24#1;havoc __utac_acc__Specification2_spec__2_#t~ret24#1; 1535#L462 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7#1);~methAndRunningLastTime~0 := 0; 1537#L462-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1672#L125 assume { :end_inline_timeShift } true; 1402#L377-2 [2021-12-22 20:24:48,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:48,905 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-12-22 20:24:48,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:48,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339496335] [2021-12-22 20:24:48,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:48,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:48,916 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:24:48,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:48,927 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:24:48,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:48,927 INFO L85 PathProgramCache]: Analyzing trace with hash 2003765426, now seen corresponding path program 1 times [2021-12-22 20:24:48,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:48,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227195263] [2021-12-22 20:24:48,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:48,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:24:48,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 20:24:48,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 20:24:48,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227195263] [2021-12-22 20:24:48,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227195263] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 20:24:48,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 20:24:48,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 20:24:48,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109267640] [2021-12-22 20:24:48,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 20:24:48,941 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-22 20:24:48,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 20:24:48,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 20:24:48,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 20:24:48,942 INFO L87 Difference]: Start difference. First operand 369 states and 495 transitions. cyclomatic complexity: 129 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2021-12-22 20:24:49,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 20:24:49,018 INFO L93 Difference]: Finished difference Result 375 states and 478 transitions. [2021-12-22 20:24:49,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 20:24:49,019 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 375 states and 478 transitions. [2021-12-22 20:24:49,021 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 263 [2021-12-22 20:24:49,022 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 375 states to 375 states and 478 transitions. [2021-12-22 20:24:49,022 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 375 [2021-12-22 20:24:49,023 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 375 [2021-12-22 20:24:49,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 375 states and 478 transitions. [2021-12-22 20:24:49,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 20:24:49,024 INFO L681 BuchiCegarLoop]: Abstraction has 375 states and 478 transitions. [2021-12-22 20:24:49,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states and 478 transitions. [2021-12-22 20:24:49,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2021-12-22 20:24:49,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 375 states have (on average 1.2746666666666666) internal successors, (478), 374 states have internal predecessors, (478), 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) [2021-12-22 20:24:49,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 478 transitions. [2021-12-22 20:24:49,030 INFO L704 BuchiCegarLoop]: Abstraction has 375 states and 478 transitions. [2021-12-22 20:24:49,030 INFO L587 BuchiCegarLoop]: Abstraction has 375 states and 478 transitions. [2021-12-22 20:24:49,031 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-22 20:24:49,031 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 375 states and 478 transitions. [2021-12-22 20:24:49,032 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 263 [2021-12-22 20:24:49,032 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:24:49,032 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:24:49,033 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:24:49,033 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, 1, 1, 1] [2021-12-22 20:24:49,033 INFO L791 eck$LassoCheckResult]: Stem: 2381#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 2328#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret31#1, main_~retValue_acc~10#1, main_~tmp~8#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 2329#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2352#L68 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; 2155#L83 main_#t~ret31#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 2156#L671 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 2271#L647 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 2279#L451 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2293#L377-2 [2021-12-22 20:24:49,034 INFO L793 eck$LassoCheckResult]: Loop: 2293#L377-2 assume !false; 2452#L378 assume test_~splverifierCounter~0#1 < 4; 2453#L379 test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 2471#L387 assume !(0 != test_~tmp~6#1); 2469#L387-2 test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 2467#L397 assume !(0 != test_~tmp___0~2#1); 2465#L397-2 test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 2464#L407 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2135#L360 assume { :end_inline_startSystem } true; 2146#L415-2 assume { :begin_inline_timeShift } true; 2151#L108 assume !(0 != ~pumpRunning~0); 2152#L108-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 2370#L192 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 2368#L166-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 2337#L140-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 2229#L568-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 2230#L573-3 isHighWaterLevel_#t~ret18#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret18#1;havoc isHighWaterLevel_#t~ret18#1; 2371#L311-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 2283#L311-11 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 2284#L317-3 processEnvironment__wrappee__highWaterSensor_#t~ret5#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret5#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1; 2215#L144-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2217#L132-6 assume { :end_inline_processEnvironment__wrappee__base } true; 2268#L140-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2318#L166-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2280#L192-1 assume { :end_inline_processEnvironment } true; 2211#L115-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret24#1, __utac_acc__Specification2_spec__2_#t~ret25#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~7#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 2212#L528-5 __utac_acc__Specification2_spec__2_#t~ret24#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~7#1 := __utac_acc__Specification2_spec__2_#t~ret24#1;havoc __utac_acc__Specification2_spec__2_#t~ret24#1; 2240#L462 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7#1);~methAndRunningLastTime~0 := 0; 2242#L462-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 2369#L125 assume { :end_inline_timeShift } true; 2293#L377-2 [2021-12-22 20:24:49,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:49,034 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-12-22 20:24:49,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:49,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903001506] [2021-12-22 20:24:49,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:49,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:49,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:49,044 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:24:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:49,054 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:24:49,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:49,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1458371156, now seen corresponding path program 1 times [2021-12-22 20:24:49,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:49,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082839721] [2021-12-22 20:24:49,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:49,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:49,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:49,061 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:24:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:49,066 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:24:49,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:49,066 INFO L85 PathProgramCache]: Analyzing trace with hash 870738645, now seen corresponding path program 1 times [2021-12-22 20:24:49,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:49,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424424165] [2021-12-22 20:24:49,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:49,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:49,077 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:24:49,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:49,089 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:24:51,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.12 08:24:51 BoogieIcfgContainer [2021-12-22 20:24:51,452 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-22 20:24:51,455 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 20:24:51,455 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 20:24:51,455 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 20:24:51,456 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:24:48" (3/4) ... [2021-12-22 20:24:51,458 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-22 20:24:51,510 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-22 20:24:51,511 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 20:24:51,512 INFO L158 Benchmark]: Toolchain (without parser) took 4745.25ms. Allocated memory was 90.2MB in the beginning and 184.5MB in the end (delta: 94.4MB). Free memory was 57.2MB in the beginning and 71.8MB in the end (delta: -14.6MB). Peak memory consumption was 79.5MB. Max. memory is 16.1GB. [2021-12-22 20:24:51,512 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 90.2MB. Free memory is still 49.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 20:24:51,512 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.88ms. Allocated memory is still 90.2MB. Free memory was 57.0MB in the beginning and 56.8MB in the end (delta: 217.7kB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2021-12-22 20:24:51,513 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.90ms. Allocated memory is still 90.2MB. Free memory was 56.4MB in the beginning and 51.4MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-22 20:24:51,513 INFO L158 Benchmark]: Boogie Preprocessor took 46.40ms. Allocated memory is still 90.2MB. Free memory was 51.4MB in the beginning and 47.5MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-22 20:24:51,513 INFO L158 Benchmark]: RCFGBuilder took 724.51ms. Allocated memory was 90.2MB in the beginning and 125.8MB in the end (delta: 35.7MB). Free memory was 47.5MB in the beginning and 78.9MB in the end (delta: -31.3MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2021-12-22 20:24:51,513 INFO L158 Benchmark]: BuchiAutomizer took 3398.65ms. Allocated memory was 125.8MB in the beginning and 184.5MB in the end (delta: 58.7MB). Free memory was 78.9MB in the beginning and 74.9MB in the end (delta: 4.0MB). Peak memory consumption was 75.4MB. Max. memory is 16.1GB. [2021-12-22 20:24:51,514 INFO L158 Benchmark]: Witness Printer took 56.16ms. Allocated memory is still 184.5MB. Free memory was 74.9MB in the beginning and 71.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 20:24:51,515 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 90.2MB. Free memory is still 49.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 420.88ms. Allocated memory is still 90.2MB. Free memory was 57.0MB in the beginning and 56.8MB in the end (delta: 217.7kB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.90ms. Allocated memory is still 90.2MB. Free memory was 56.4MB in the beginning and 51.4MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.40ms. Allocated memory is still 90.2MB. Free memory was 51.4MB in the beginning and 47.5MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 724.51ms. Allocated memory was 90.2MB in the beginning and 125.8MB in the end (delta: 35.7MB). Free memory was 47.5MB in the beginning and 78.9MB in the end (delta: -31.3MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 3398.65ms. Allocated memory was 125.8MB in the beginning and 184.5MB in the end (delta: 58.7MB). Free memory was 78.9MB in the beginning and 74.9MB in the end (delta: 4.0MB). Peak memory consumption was 75.4MB. Max. memory is 16.1GB. * Witness Printer took 56.16ms. Allocated memory is still 184.5MB. Free memory was 74.9MB in the beginning and 71.8MB in the end (delta: 3.1MB). 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 375 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 612 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 375 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2321 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2321 mSDsluCounter, 3270 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2527 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 95 IncrementalHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 743 mSDtfsCounter, 95 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: 377]: 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@4cedcffd=0, tmp=0, tmp___0=0, NULL=0, head=0, pumpRunning=0, tmp___0=0, retValue_acc=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38434cbe=0, methaneLevelCritical=0, tmp=0, \result=0, retValue_acc=0, retValue_acc=1, \result=1, \result=1, retValue_acc=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a911147=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@569ae935=0, tmp=1, tmp___2=29, methAndRunningLastTime=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@357e0fa0=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14d6dbcf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f93f706=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5dc06d34=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7fe6dbdf=0, \result=0, tmp=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4fe9025f=0, retValue_acc=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@116eee83=0, \result=0, tmp=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 377]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L100] int pumpRunning = 0; [L101] int systemActive = 1; [L445] int methAndRunningLastTime ; [L485] int waterLevel = 1; [L486] int methaneLevelCritical = 0; [L588] int cleanupTimeShifts = 4; [L854] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L662] int retValue_acc ; [L663] int tmp ; [L667] FCALL select_helpers() [L668] FCALL select_features() [L669] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L669] RET, EXPR valid_product() [L669] tmp = valid_product() [L671] COND TRUE \read(tmp) [L673] FCALL setup() [L674] CALL runTest() [L655] CALL __utac_acc__Specification2_spec__1() [L450] methAndRunningLastTime = 0 [L655] RET __utac_acc__Specification2_spec__1() [L656] CALL test() [L368] int splverifierCounter ; [L369] int tmp ; [L370] int tmp___0 ; [L371] int tmp___1 ; [L372] int tmp___2 ; [L375] splverifierCounter = 0 Loop: [L377] COND TRUE 1 [L379] COND TRUE splverifierCounter < 4 [L385] tmp = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp)) [L395] tmp___0 = __VERIFIER_nondet_int() [L397] COND FALSE !(\read(tmp___0)) [L405] tmp___2 = __VERIFIER_nondet_int() [L407] COND TRUE \read(tmp___2) [L409] CALL startSystem() [L359] systemActive = 1 [L409] RET startSystem() [L424] CALL timeShift() [L108] COND FALSE !(\read(pumpRunning)) [L115] COND TRUE \read(systemActive) [L117] CALL processEnvironment() [L189] int tmp ; [L192] COND FALSE !(\read(pumpRunning)) [L207] CALL processEnvironment__wrappee__methaneQuery() [L163] int tmp ; [L166] COND FALSE !(\read(pumpRunning)) [L181] CALL processEnvironment__wrappee__highWaterSensor() [L137] int tmp ; [L140] COND TRUE ! pumpRunning [L142] CALL, EXPR isHighWaterLevel() [L303] int retValue_acc ; [L304] int tmp ; [L305] int tmp___0 ; [L309] CALL, EXPR isHighWaterSensorDry() [L565] int retValue_acc ; [L568] COND TRUE waterLevel < 2 [L569] retValue_acc = 1 [L570] return (retValue_acc); [L309] RET, EXPR isHighWaterSensorDry() [L309] tmp = isHighWaterSensorDry() [L311] COND TRUE \read(tmp) [L312] tmp___0 = 0 [L316] retValue_acc = tmp___0 [L317] return (retValue_acc); [L142] RET, EXPR isHighWaterLevel() [L142] tmp = isHighWaterLevel() [L144] COND FALSE !(\read(tmp)) [L150] FCALL processEnvironment__wrappee__base() [L181] RET processEnvironment__wrappee__highWaterSensor() [L207] RET processEnvironment__wrappee__methaneQuery() [L117] RET processEnvironment() [L123] CALL __utac_acc__Specification2_spec__2() [L455] int tmp ; [L456] int tmp___0 ; [L460] CALL, EXPR isMethaneLevelCritical() [L524] int retValue_acc ; [L527] retValue_acc = methaneLevelCritical [L528] return (retValue_acc); [L460] RET, EXPR isMethaneLevelCritical() [L460] tmp = isMethaneLevelCritical() [L462] COND FALSE !(\read(tmp)) [L478] methAndRunningLastTime = 0 [L123] RET __utac_acc__Specification2_spec__2() [L424] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-22 20:24:51,583 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)