./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ff03de63 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_spec1_product42.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 f8aef606697b9aeff574acbbe43b28a142b9105524bb5bbab5e1458056090146 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 22:33:08,826 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 22:33:08,829 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 22:33:08,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 22:33:08,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 22:33:08,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 22:33:08,870 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 22:33:08,872 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 22:33:08,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 22:33:08,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 22:33:08,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 22:33:08,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 22:33:08,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 22:33:08,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 22:33:08,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 22:33:08,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 22:33:08,888 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 22:33:08,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 22:33:08,890 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 22:33:08,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 22:33:08,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 22:33:08,892 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 22:33:08,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 22:33:08,894 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 22:33:08,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 22:33:08,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 22:33:08,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 22:33:08,902 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 22:33:08,902 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 22:33:08,903 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 22:33:08,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 22:33:08,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 22:33:08,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 22:33:08,906 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 22:33:08,907 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 22:33:08,907 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 22:33:08,908 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 22:33:08,908 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 22:33:08,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 22:33:08,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 22:33:08,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 22:33:08,910 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-21 22:33:08,935 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 22:33:08,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 22:33:08,936 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 22:33:08,936 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 22:33:08,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 22:33:08,937 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 22:33:08,938 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 22:33:08,938 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-21 22:33:08,938 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-21 22:33:08,938 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-21 22:33:08,939 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-21 22:33:08,939 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-21 22:33:08,939 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-21 22:33:08,939 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 22:33:08,939 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 22:33:08,939 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 22:33:08,940 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 22:33:08,940 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 22:33:08,940 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 22:33:08,940 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-21 22:33:08,940 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-21 22:33:08,940 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-21 22:33:08,940 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 22:33:08,941 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 22:33:08,941 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-21 22:33:08,941 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 22:33:08,941 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-21 22:33:08,941 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 22:33:08,941 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 22:33:08,942 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 22:33:08,942 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 22:33:08,942 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 22:33:08,943 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-21 22:33:08,943 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f8aef606697b9aeff574acbbe43b28a142b9105524bb5bbab5e1458056090146 [2021-12-21 22:33:09,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 22:33:09,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 22:33:09,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 22:33:09,142 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 22:33:09,143 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 22:33:09,144 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c [2021-12-21 22:33:09,206 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81a24e4db/36c9ba3dbdfb41519ebc39f8cfd7982f/FLAG6db7363dc [2021-12-21 22:33:09,514 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 22:33:09,515 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c [2021-12-21 22:33:09,523 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81a24e4db/36c9ba3dbdfb41519ebc39f8cfd7982f/FLAG6db7363dc [2021-12-21 22:33:09,937 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81a24e4db/36c9ba3dbdfb41519ebc39f8cfd7982f [2021-12-21 22:33:09,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 22:33:09,940 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 22:33:09,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 22:33:09,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 22:33:09,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 22:33:09,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:33:09" (1/1) ... [2021-12-21 22:33:09,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38cfca02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:09, skipping insertion in model container [2021-12-21 22:33:09,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:33:09" (1/1) ... [2021-12-21 22:33:09,953 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 22:33:09,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 22:33:10,164 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_spec1_product42.cil.c[15994,16007] [2021-12-21 22:33:10,170 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:33:10,178 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 22:33:10,238 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_spec1_product42.cil.c[15994,16007] [2021-12-21 22:33:10,241 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:33:10,252 INFO L208 MainTranslator]: Completed translation [2021-12-21 22:33:10,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:10 WrapperNode [2021-12-21 22:33:10,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 22:33:10,254 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 22:33:10,254 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 22:33:10,254 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 22:33:10,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:10" (1/1) ... [2021-12-21 22:33:10,279 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:10" (1/1) ... [2021-12-21 22:33:10,315 INFO L137 Inliner]: procedures = 54, calls = 152, calls flagged for inlining = 49, calls inlined = 57, statements flattened = 455 [2021-12-21 22:33:10,315 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 22:33:10,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 22:33:10,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 22:33:10,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 22:33:10,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:10" (1/1) ... [2021-12-21 22:33:10,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:10" (1/1) ... [2021-12-21 22:33:10,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:10" (1/1) ... [2021-12-21 22:33:10,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:10" (1/1) ... [2021-12-21 22:33:10,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:10" (1/1) ... [2021-12-21 22:33:10,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:10" (1/1) ... [2021-12-21 22:33:10,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:10" (1/1) ... [2021-12-21 22:33:10,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 22:33:10,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 22:33:10,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 22:33:10,338 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 22:33:10,339 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:10" (1/1) ... [2021-12-21 22:33:10,366 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:33:10,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:33:10,393 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) [2021-12-21 22:33:10,394 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 [2021-12-21 22:33:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 22:33:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 22:33:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 22:33:10,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 22:33:10,505 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 22:33:10,506 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 22:33:10,769 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 22:33:10,775 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 22:33:10,775 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 22:33:10,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:33:10 BoogieIcfgContainer [2021-12-21 22:33:10,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 22:33:10,778 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-21 22:33:10,778 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-21 22:33:10,780 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-21 22:33:10,780 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:33:10,781 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.12 10:33:09" (1/3) ... [2021-12-21 22:33:10,781 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6bcba882 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:33:10, skipping insertion in model container [2021-12-21 22:33:10,781 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:33:10,782 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:10" (2/3) ... [2021-12-21 22:33:10,782 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6bcba882 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:33:10, skipping insertion in model container [2021-12-21 22:33:10,782 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:33:10,782 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:33:10" (3/3) ... [2021-12-21 22:33:10,783 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product42.cil.c [2021-12-21 22:33:10,815 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-21 22:33:10,815 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-21 22:33:10,815 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-21 22:33:10,816 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-21 22:33:10,816 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-21 22:33:10,816 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-21 22:33:10,816 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-21 22:33:10,816 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-21 22:33:10,827 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 118 states, 117 states have (on average 1.3675213675213675) internal successors, (160), 117 states have internal predecessors, (160), 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) [2021-12-21 22:33:10,843 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2021-12-21 22:33:10,843 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:33:10,843 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:33:10,847 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:10,847 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:10,847 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-21 22:33:10,848 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 118 states, 117 states have (on average 1.3675213675213675) internal successors, (160), 117 states have internal predecessors, (160), 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) [2021-12-21 22:33:10,859 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2021-12-21 22:33:10,859 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:33:10,860 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:33:10,860 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:10,860 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:10,864 INFO L791 eck$LassoCheckResult]: Stem: 104#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 35#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 93#L830true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 4#L823true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 29#L838true main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 69#L925true assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 88#L902true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 6#L530-2true [2021-12-21 22:33:10,864 INFO L793 eck$LassoCheckResult]: Loop: 6#L530-2true assume !false; 36#L531true assume test_~splverifierCounter~0#1 < 4; 47#L532true test_~tmp~3#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 25#L540true assume !(0 != test_~tmp~3#1); 38#L540-2true test_~tmp___0~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 117#L550true assume !(0 != test_~tmp___0~0#1); 16#L550-2true test_~tmp___2~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 18#L560true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 9#L766true assume { :end_inline_startSystem } true; 30#L568-2true assume { :begin_inline_timeShift } true; 52#L599true assume !(0 != ~pumpRunning~0); 68#L599-2true assume !(0 != ~systemActive~0); 116#L606-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 63#L466-1true __utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1; 105#L787true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 56#L787-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 94#L616true assume { :end_inline_timeShift } true; 6#L530-2true [2021-12-21 22:33:10,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:10,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-21 22:33:10,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:10,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966514704] [2021-12-21 22:33:10,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:10,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:10,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:10,950 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:33:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:10,983 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:33:10,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:10,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1650147905, now seen corresponding path program 1 times [2021-12-21 22:33:10,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:10,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244091973] [2021-12-21 22:33:10,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:10,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:10,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:33:11,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:33:11,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:33:11,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244091973] [2021-12-21 22:33:11,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244091973] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:33:11,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:33:11,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 22:33:11,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368410456] [2021-12-21 22:33:11,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:33:11,044 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-21 22:33:11,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:33:11,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 22:33:11,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 22:33:11,074 INFO L87 Difference]: Start difference. First operand has 118 states, 117 states have (on average 1.3675213675213675) internal successors, (160), 117 states have internal predecessors, (160), 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 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-12-21 22:33:11,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:33:11,123 INFO L93 Difference]: Finished difference Result 115 states and 147 transitions. [2021-12-21 22:33:11,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 22:33:11,128 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 115 states and 147 transitions. [2021-12-21 22:33:11,137 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-12-21 22:33:11,141 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 115 states to 105 states and 136 transitions. [2021-12-21 22:33:11,142 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 105 [2021-12-21 22:33:11,143 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 105 [2021-12-21 22:33:11,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 105 states and 136 transitions. [2021-12-21 22:33:11,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:33:11,145 INFO L681 BuchiCegarLoop]: Abstraction has 105 states and 136 transitions. [2021-12-21 22:33:11,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states and 136 transitions. [2021-12-21 22:33:11,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2021-12-21 22:33:11,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 105 states have (on average 1.2952380952380953) internal successors, (136), 104 states have internal predecessors, (136), 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) [2021-12-21 22:33:11,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 136 transitions. [2021-12-21 22:33:11,165 INFO L704 BuchiCegarLoop]: Abstraction has 105 states and 136 transitions. [2021-12-21 22:33:11,165 INFO L587 BuchiCegarLoop]: Abstraction has 105 states and 136 transitions. [2021-12-21 22:33:11,165 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-21 22:33:11,165 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 105 states and 136 transitions. [2021-12-21 22:33:11,166 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-12-21 22:33:11,166 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:33:11,166 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:33:11,167 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:11,167 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] [2021-12-21 22:33:11,167 INFO L791 eck$LassoCheckResult]: Stem: 344#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 295#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 296#L830 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 242#L823 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 243#L838 main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 286#L925 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 330#L902 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 246#L530-2 [2021-12-21 22:33:11,167 INFO L793 eck$LassoCheckResult]: Loop: 246#L530-2 assume !false; 247#L531 assume test_~splverifierCounter~0#1 < 4; 297#L532 test_~tmp~3#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 278#L540 assume !(0 != test_~tmp~3#1); 279#L540-2 test_~tmp___0~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 300#L550 assume !(0 != test_~tmp___0~0#1); 257#L550-2 test_~tmp___2~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 264#L560 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 265#L568 assume 0 != test_~tmp___1~0#1; 253#L568-2 assume { :begin_inline_timeShift } true; 287#L599 assume !(0 != ~pumpRunning~0); 305#L599-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 321#L631 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 313#L623-1 assume { :end_inline_processEnvironment__wrappee__base } true; 249#L631-1 assume { :end_inline_processEnvironment } true; 314#L606-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 323#L466-1 __utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1; 324#L787 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 288#L787-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 316#L616 assume { :end_inline_timeShift } true; 246#L530-2 [2021-12-21 22:33:11,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:11,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-21 22:33:11,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:11,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751285638] [2021-12-21 22:33:11,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:11,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:11,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:11,187 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:33:11,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:11,211 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:33:11,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:11,212 INFO L85 PathProgramCache]: Analyzing trace with hash 428474599, now seen corresponding path program 1 times [2021-12-21 22:33:11,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:11,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633518354] [2021-12-21 22:33:11,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:11,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:11,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:33:11,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:33:11,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:33:11,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633518354] [2021-12-21 22:33:11,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633518354] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:33:11,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:33:11,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 22:33:11,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960941423] [2021-12-21 22:33:11,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:33:11,247 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-21 22:33:11,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:33:11,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 22:33:11,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 22:33:11,248 INFO L87 Difference]: Start difference. First operand 105 states and 136 transitions. cyclomatic complexity: 33 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2021-12-21 22:33:11,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:33:11,287 INFO L93 Difference]: Finished difference Result 161 states and 202 transitions. [2021-12-21 22:33:11,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 22:33:11,288 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 161 states and 202 transitions. [2021-12-21 22:33:11,289 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2021-12-21 22:33:11,290 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 161 states to 161 states and 202 transitions. [2021-12-21 22:33:11,290 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 161 [2021-12-21 22:33:11,291 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 161 [2021-12-21 22:33:11,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 161 states and 202 transitions. [2021-12-21 22:33:11,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:33:11,292 INFO L681 BuchiCegarLoop]: Abstraction has 161 states and 202 transitions. [2021-12-21 22:33:11,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states and 202 transitions. [2021-12-21 22:33:11,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2021-12-21 22:33:11,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 161 states have (on average 1.2546583850931676) internal successors, (202), 160 states have internal predecessors, (202), 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) [2021-12-21 22:33:11,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 202 transitions. [2021-12-21 22:33:11,297 INFO L704 BuchiCegarLoop]: Abstraction has 161 states and 202 transitions. [2021-12-21 22:33:11,297 INFO L587 BuchiCegarLoop]: Abstraction has 161 states and 202 transitions. [2021-12-21 22:33:11,297 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-21 22:33:11,298 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 161 states and 202 transitions. [2021-12-21 22:33:11,298 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2021-12-21 22:33:11,299 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:33:11,299 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:33:11,299 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:11,299 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] [2021-12-21 22:33:11,300 INFO L791 eck$LassoCheckResult]: Stem: 625#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 571#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 572#L830 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 514#L823 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 515#L838 main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 561#L925 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 607#L902 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 518#L530-2 [2021-12-21 22:33:11,300 INFO L793 eck$LassoCheckResult]: Loop: 518#L530-2 assume !false; 519#L531 assume test_~splverifierCounter~0#1 < 4; 573#L532 test_~tmp~3#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 553#L540 assume !(0 != test_~tmp~3#1); 554#L540-2 test_~tmp___0~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 576#L550 assume !(0 != test_~tmp___0~0#1); 529#L550-2 test_~tmp___2~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 538#L560 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 539#L568 assume 0 != test_~tmp___1~0#1; 562#L568-2 assume { :begin_inline_timeShift } true; 563#L599 assume !(0 != ~pumpRunning~0); 586#L599-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 598#L631 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 599#L506 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 596#L511 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 545#L751 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 526#L751-2 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 527#L757 processEnvironment_#t~ret36#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret36#1;havoc processEnvironment_#t~ret36#1; 549#L635 assume !(0 != processEnvironment_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 520#L623 assume { :end_inline_processEnvironment__wrappee__base } true; 521#L631-1 assume { :end_inline_processEnvironment } true; 591#L606-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 600#L466-1 __utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1; 601#L787 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 567#L787-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 593#L616 assume { :end_inline_timeShift } true; 518#L530-2 [2021-12-21 22:33:11,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:11,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-21 22:33:11,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:11,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381809618] [2021-12-21 22:33:11,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:11,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:11,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:11,313 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:33:11,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:11,325 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:33:11,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:11,326 INFO L85 PathProgramCache]: Analyzing trace with hash 247252335, now seen corresponding path program 1 times [2021-12-21 22:33:11,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:11,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070216785] [2021-12-21 22:33:11,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:11,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:11,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:11,336 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:33:11,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:11,342 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:33:11,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:11,343 INFO L85 PathProgramCache]: Analyzing trace with hash 120811059, now seen corresponding path program 1 times [2021-12-21 22:33:11,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:11,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864730023] [2021-12-21 22:33:11,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:11,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:11,355 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:33:11,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:11,368 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:33:14,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.12 10:33:14 BoogieIcfgContainer [2021-12-21 22:33:14,018 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-21 22:33:14,018 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 22:33:14,018 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 22:33:14,018 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 22:33:14,019 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:33:10" (3/4) ... [2021-12-21 22:33:14,021 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-21 22:33:14,052 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 22:33:14,052 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 22:33:14,053 INFO L158 Benchmark]: Toolchain (without parser) took 4112.58ms. Allocated memory was 96.5MB in the beginning and 157.3MB in the end (delta: 60.8MB). Free memory was 63.2MB in the beginning and 71.3MB in the end (delta: -8.1MB). Peak memory consumption was 52.8MB. Max. memory is 16.1GB. [2021-12-21 22:33:14,053 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 96.5MB. Free memory was 52.5MB in the beginning and 52.4MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:33:14,053 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.06ms. Allocated memory is still 96.5MB. Free memory was 63.0MB in the beginning and 64.6MB in the end (delta: -1.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-21 22:33:14,054 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.73ms. Allocated memory is still 96.5MB. Free memory was 64.2MB in the beginning and 61.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:33:14,054 INFO L158 Benchmark]: Boogie Preprocessor took 21.40ms. Allocated memory is still 96.5MB. Free memory was 61.2MB in the beginning and 59.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:33:14,058 INFO L158 Benchmark]: RCFGBuilder took 439.05ms. Allocated memory is still 96.5MB. Free memory was 59.5MB in the beginning and 41.5MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-21 22:33:14,059 INFO L158 Benchmark]: BuchiAutomizer took 3240.14ms. Allocated memory was 96.5MB in the beginning and 157.3MB in the end (delta: 60.8MB). Free memory was 41.1MB in the beginning and 73.4MB in the end (delta: -32.3MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. [2021-12-21 22:33:14,059 INFO L158 Benchmark]: Witness Printer took 34.08ms. Allocated memory is still 157.3MB. Free memory was 73.4MB in the beginning and 71.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:33:14,060 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 96.5MB. Free memory was 52.5MB in the beginning and 52.4MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 312.06ms. Allocated memory is still 96.5MB. Free memory was 63.0MB in the beginning and 64.6MB in the end (delta: -1.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.73ms. Allocated memory is still 96.5MB. Free memory was 64.2MB in the beginning and 61.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.40ms. Allocated memory is still 96.5MB. Free memory was 61.2MB in the beginning and 59.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 439.05ms. Allocated memory is still 96.5MB. Free memory was 59.5MB in the beginning and 41.5MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 3240.14ms. Allocated memory was 96.5MB in the beginning and 157.3MB in the end (delta: 60.8MB). Free memory was 41.1MB in the beginning and 73.4MB in the end (delta: -32.3MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. * Witness Printer took 34.08ms. Allocated memory is still 157.3MB. Free memory was 73.4MB in the beginning and 71.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 161 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 161 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 251 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 251 mSDsluCounter, 352 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 72 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24 IncrementalHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 280 mSDtfsCounter, 24 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 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: 530]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, tmp___0=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79ba7f79=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4321a288=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b3dd032=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64c8f436=0, tmp___0=0, NULL=1, tmp___0=0, methaneLevelCritical=0, retValue_acc=1, \result=0, retValue_acc=1, retValue_acc=0, \result=1, \result=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d839f47=29, tmp=1, tmp=1, tmp___2=0, cleanupTimeShifts=4, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b56fddc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d47e5ff=0, \result=0, tmp=0, head=0, tmp___1=29, NULL=0, waterLevel=1, systemActive=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4edb935e=0, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e821f1c=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 530]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L591] int pumpRunning = 0; [L592] int systemActive = 1; [L843] int cleanupTimeShifts = 4; [L916] int retValue_acc ; [L917] int tmp ; [L921] FCALL select_helpers() [L922] FCALL select_features() [L923] CALL, EXPR valid_product() [L834] int retValue_acc ; [L837] retValue_acc = 1 [L838] return (retValue_acc); [L923] RET, EXPR valid_product() [L923] tmp = valid_product() [L925] COND TRUE \read(tmp) [L927] FCALL setup() [L928] CALL runTest() [L910] CALL test() [L521] int splverifierCounter ; [L522] int tmp ; [L523] int tmp___0 ; [L524] int tmp___1 ; [L525] int tmp___2 ; [L528] splverifierCounter = 0 Loop: [L530] COND TRUE 1 [L532] COND TRUE splverifierCounter < 4 [L538] tmp = __VERIFIER_nondet_int() [L540] COND FALSE !(\read(tmp)) [L548] tmp___0 = __VERIFIER_nondet_int() [L550] COND FALSE !(\read(tmp___0)) [L558] tmp___2 = __VERIFIER_nondet_int() [L560] COND FALSE !(\read(tmp___2)) [L566] tmp___1 = __VERIFIER_nondet_int() [L568] COND TRUE \read(tmp___1) [L575] CALL timeShift() [L599] COND FALSE !(\read(pumpRunning)) [L606] COND TRUE \read(systemActive) [L608] CALL processEnvironment() [L628] int tmp ; [L631] COND TRUE ! pumpRunning [L633] CALL, EXPR isHighWaterLevel() [L743] int retValue_acc ; [L744] int tmp ; [L745] int tmp___0 ; [L749] CALL, EXPR isHighWaterSensorDry() [L503] int retValue_acc ; [L506] COND TRUE waterLevel < 2 [L507] retValue_acc = 1 [L508] return (retValue_acc); [L749] RET, EXPR isHighWaterSensorDry() [L749] tmp = isHighWaterSensorDry() [L751] COND TRUE \read(tmp) [L752] tmp___0 = 0 [L756] retValue_acc = tmp___0 [L757] return (retValue_acc); [L633] RET, EXPR isHighWaterLevel() [L633] tmp = isHighWaterLevel() [L635] COND FALSE !(\read(tmp)) [L641] FCALL processEnvironment__wrappee__base() [L608] RET processEnvironment() [L614] CALL __utac_acc__Specification1_spec__1() [L780] int tmp ; [L781] int tmp___0 ; [L785] CALL, EXPR isMethaneLevelCritical() [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); [L785] RET, EXPR isMethaneLevelCritical() [L785] tmp = isMethaneLevelCritical() [L787] COND FALSE !(\read(tmp)) [L614] RET __utac_acc__Specification1_spec__1() [L575] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-21 22:33:14,093 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)