./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 35987657 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_spec4_product44.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 da786641c6f5791cd76909be3af2b92112e50156e91d6775689240586eed4e85 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 02:38:50,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 02:38:50,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 02:38:50,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 02:38:50,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 02:38:50,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 02:38:50,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 02:38:50,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 02:38:50,896 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 02:38:50,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 02:38:50,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 02:38:50,912 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 02:38:50,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 02:38:50,914 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 02:38:50,915 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 02:38:50,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 02:38:50,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 02:38:50,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 02:38:50,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 02:38:50,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 02:38:50,926 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 02:38:50,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 02:38:50,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 02:38:50,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 02:38:50,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 02:38:50,936 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 02:38:50,936 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 02:38:50,937 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 02:38:50,937 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 02:38:50,938 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 02:38:50,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 02:38:50,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 02:38:50,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 02:38:50,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 02:38:50,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 02:38:50,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 02:38:50,942 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 02:38:50,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 02:38:50,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 02:38:50,944 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 02:38:50,945 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 02:38:50,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 02:38:50,950 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-22 02:38:50,977 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 02:38:50,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 02:38:50,977 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 02:38:50,978 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 02:38:50,979 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 02:38:50,979 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 02:38:50,979 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 02:38:50,980 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 02:38:50,980 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 02:38:50,980 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 02:38:50,981 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 02:38:50,981 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 02:38:50,981 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 02:38:50,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 02:38:50,981 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 02:38:50,981 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 02:38:50,982 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 02:38:50,982 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 02:38:50,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 02:38:50,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 02:38:50,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 02:38:50,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 02:38:50,983 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 02:38:50,983 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 02:38:50,983 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 02:38:50,983 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 02:38:50,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 02:38:50,984 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 02:38:50,984 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 02:38:50,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 02:38:50,984 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 02:38:50,986 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 02:38:50,986 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da786641c6f5791cd76909be3af2b92112e50156e91d6775689240586eed4e85 [2022-07-22 02:38:51,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 02:38:51,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 02:38:51,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 02:38:51,301 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 02:38:51,302 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 02:38:51,303 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c [2022-07-22 02:38:51,348 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/970b5ab7f/3edd6a65e0f149c1bc797b6f28737342/FLAG6311805be [2022-07-22 02:38:51,712 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 02:38:51,714 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c [2022-07-22 02:38:51,727 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/970b5ab7f/3edd6a65e0f149c1bc797b6f28737342/FLAG6311805be [2022-07-22 02:38:51,742 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/970b5ab7f/3edd6a65e0f149c1bc797b6f28737342 [2022-07-22 02:38:51,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 02:38:51,746 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 02:38:51,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 02:38:51,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 02:38:51,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 02:38:51,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:38:51" (1/1) ... [2022-07-22 02:38:51,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30188dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:38:51, skipping insertion in model container [2022-07-22 02:38:51,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:38:51" (1/1) ... [2022-07-22 02:38:51,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 02:38:51,796 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 02:38:52,080 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_spec4_product44.cil.c[15806,15819] [2022-07-22 02:38:52,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:38:52,104 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 02:38:52,165 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_spec4_product44.cil.c[15806,15819] [2022-07-22 02:38:52,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:38:52,200 INFO L208 MainTranslator]: Completed translation [2022-07-22 02:38:52,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:38:52 WrapperNode [2022-07-22 02:38:52,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 02:38:52,201 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 02:38:52,201 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 02:38:52,201 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 02:38:52,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:38:52" (1/1) ... [2022-07-22 02:38:52,217 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:38:52" (1/1) ... [2022-07-22 02:38:52,266 INFO L137 Inliner]: procedures = 55, calls = 154, calls flagged for inlining = 51, calls inlined = 59, statements flattened = 462 [2022-07-22 02:38:52,266 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 02:38:52,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 02:38:52,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 02:38:52,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 02:38:52,278 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:38:52" (1/1) ... [2022-07-22 02:38:52,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:38:52" (1/1) ... [2022-07-22 02:38:52,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:38:52" (1/1) ... [2022-07-22 02:38:52,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:38:52" (1/1) ... [2022-07-22 02:38:52,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:38:52" (1/1) ... [2022-07-22 02:38:52,305 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:38:52" (1/1) ... [2022-07-22 02:38:52,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:38:52" (1/1) ... [2022-07-22 02:38:52,309 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 02:38:52,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 02:38:52,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 02:38:52,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 02:38:52,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:38:52" (1/1) ... [2022-07-22 02:38:52,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:38:52,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:38:52,391 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:38:52,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-22 02:38:52,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 02:38:52,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 02:38:52,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 02:38:52,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 02:38:52,538 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 02:38:52,540 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 02:38:52,857 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 02:38:52,862 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 02:38:52,862 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-22 02:38:52,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:38:52 BoogieIcfgContainer [2022-07-22 02:38:52,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 02:38:52,864 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 02:38:52,864 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 02:38:52,866 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 02:38:52,867 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:38:52,867 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 02:38:51" (1/3) ... [2022-07-22 02:38:52,867 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53f2624e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:38:52, skipping insertion in model container [2022-07-22 02:38:52,868 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:38:52,868 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:38:52" (2/3) ... [2022-07-22 02:38:52,868 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53f2624e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:38:52, skipping insertion in model container [2022-07-22 02:38:52,868 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:38:52,868 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:38:52" (3/3) ... [2022-07-22 02:38:52,869 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product44.cil.c [2022-07-22 02:38:52,903 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 02:38:52,919 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 02:38:52,919 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 02:38:52,919 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 02:38:52,920 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 02:38:52,920 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 02:38:52,920 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 02:38:52,920 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 02:38:52,926 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 122 states, 121 states have (on average 1.3636363636363635) internal successors, (165), 121 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:38:52,948 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2022-07-22 02:38:52,949 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:38:52,949 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:38:52,954 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:38:52,954 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:38:52,954 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 02:38:52,955 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 122 states, 121 states have (on average 1.3636363636363635) internal successors, (165), 121 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:38:52,964 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2022-07-22 02:38:52,964 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:38:52,964 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:38:52,965 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:38:52,965 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:38:52,968 INFO L752 eck$LassoCheckResult]: Stem: 112#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(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 31#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~8#1, main_~tmp~8#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 97#L470true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 32#L463true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 119#L478true main_#t~ret46#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 117#L849true assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 45#L826true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_#t~nondet33#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 49#L499-2true [2022-07-22 02:38:52,969 INFO L754 eck$LassoCheckResult]: Loop: 49#L499-2true assume !false; 110#L500true assume test_~splverifierCounter~0#1 < 4; 43#L501true test_~tmp~4#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 40#L509true assume !(0 != test_~tmp~4#1); 73#L509-2true test_~tmp___0~1#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 77#L519true assume !(0 != test_~tmp___0~1#1); 54#L519-2true test_~tmp___2~0#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 82#L529true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 5#L754true assume { :end_inline_startSystem } true; 86#L537-2true assume { :begin_inline_timeShift } true; 96#L572true assume !(0 != ~pumpRunning~0); 18#L572-2true assume !(0 != ~systemActive~0); 7#L579-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret4#1, __utac_acc__Specification4_spec__1_#t~ret5#1, __utac_acc__Specification4_spec__1_~tmp~0#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~0#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 106#L938true __utac_acc__Specification4_spec__1_#t~ret4#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~0#1 := __utac_acc__Specification4_spec__1_#t~ret4#1;havoc __utac_acc__Specification4_spec__1_#t~ret4#1; 64#L61true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0#1); 102#L61-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 10#L589true assume { :end_inline_timeShift } true; 49#L499-2true [2022-07-22 02:38:52,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:38:52,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-07-22 02:38:52,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:38:52,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893330321] [2022-07-22 02:38:52,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:38:52,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:38:53,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:38:53,139 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:38:53,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:38:53,170 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:38:53,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:38:53,172 INFO L85 PathProgramCache]: Analyzing trace with hash 844249025, now seen corresponding path program 1 times [2022-07-22 02:38:53,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:38:53,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895801802] [2022-07-22 02:38:53,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:38:53,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:38:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:38:53,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:38:53,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 02:38:53,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895801802] [2022-07-22 02:38:53,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895801802] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 02:38:53,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 02:38:53,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 02:38:53,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60411283] [2022-07-22 02:38:53,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 02:38:53,216 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 02:38:53,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 02:38:53,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 02:38:53,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 02:38:53,238 INFO L87 Difference]: Start difference. First operand has 122 states, 121 states have (on average 1.3636363636363635) internal successors, (165), 121 states have internal predecessors, (165), 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) [2022-07-22 02:38:53,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 02:38:53,278 INFO L93 Difference]: Finished difference Result 229 states and 297 transitions. [2022-07-22 02:38:53,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 02:38:53,283 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 229 states and 297 transitions. [2022-07-22 02:38:53,289 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 148 [2022-07-22 02:38:53,293 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 229 states to 209 states and 276 transitions. [2022-07-22 02:38:53,294 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 209 [2022-07-22 02:38:53,295 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 209 [2022-07-22 02:38:53,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 209 states and 276 transitions. [2022-07-22 02:38:53,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 02:38:53,296 INFO L369 hiAutomatonCegarLoop]: Abstraction has 209 states and 276 transitions. [2022-07-22 02:38:53,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states and 276 transitions. [2022-07-22 02:38:53,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 206. [2022-07-22 02:38:53,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 206 states have (on average 1.3203883495145632) internal successors, (272), 205 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:38:53,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 272 transitions. [2022-07-22 02:38:53,347 INFO L392 hiAutomatonCegarLoop]: Abstraction has 206 states and 272 transitions. [2022-07-22 02:38:53,347 INFO L374 stractBuchiCegarLoop]: Abstraction has 206 states and 272 transitions. [2022-07-22 02:38:53,347 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-22 02:38:53,347 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 206 states and 272 transitions. [2022-07-22 02:38:53,349 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 145 [2022-07-22 02:38:53,350 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:38:53,350 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:38:53,350 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:38:53,350 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:38:53,350 INFO L752 eck$LassoCheckResult]: Stem: 490#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(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 406#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~8#1, main_~tmp~8#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 407#L470 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 408#L463 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 409#L478 main_#t~ret46#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 492#L849 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 431#L826 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_#t~nondet33#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 432#L499-2 [2022-07-22 02:38:53,351 INFO L754 eck$LassoCheckResult]: Loop: 432#L499-2 assume !false; 487#L500 assume test_~splverifierCounter~0#1 < 4; 427#L501 test_~tmp~4#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 422#L509 assume !(0 != test_~tmp~4#1); 361#L509-2 test_~tmp___0~1#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 469#L519 assume !(0 != test_~tmp___0~1#1); 444#L519-2 test_~tmp___2~0#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 445#L529 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 471#L537 assume !(0 != test_~tmp___1~0#1); 365#L537-2 assume { :begin_inline_timeShift } true; 477#L572 assume !(0 != ~pumpRunning~0); 381#L572-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret34#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 386#L604 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 474#L596-1 assume { :end_inline_processEnvironment__wrappee__base } true; 379#L604-1 assume { :end_inline_processEnvironment } true; 368#L579-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret4#1, __utac_acc__Specification4_spec__1_#t~ret5#1, __utac_acc__Specification4_spec__1_~tmp~0#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~0#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 369#L938 __utac_acc__Specification4_spec__1_#t~ret4#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~0#1 := __utac_acc__Specification4_spec__1_#t~ret4#1;havoc __utac_acc__Specification4_spec__1_#t~ret4#1; 459#L61 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0#1); 460#L61-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 514#L589 assume { :end_inline_timeShift } true; 432#L499-2 [2022-07-22 02:38:53,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:38:53,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-07-22 02:38:53,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:38:53,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753583515] [2022-07-22 02:38:53,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:38:53,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:38:53,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:38:53,373 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:38:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:38:53,394 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:38:53,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:38:53,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1854755867, now seen corresponding path program 1 times [2022-07-22 02:38:53,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:38:53,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731597027] [2022-07-22 02:38:53,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:38:53,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:38:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:38:53,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:38:53,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 02:38:53,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731597027] [2022-07-22 02:38:53,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731597027] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 02:38:53,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 02:38:53,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 02:38:53,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494974014] [2022-07-22 02:38:53,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 02:38:53,434 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 02:38:53,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 02:38:53,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 02:38:53,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 02:38:53,436 INFO L87 Difference]: Start difference. First operand 206 states and 272 transitions. cyclomatic complexity: 69 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) [2022-07-22 02:38:53,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 02:38:53,490 INFO L93 Difference]: Finished difference Result 318 states and 407 transitions. [2022-07-22 02:38:53,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 02:38:53,490 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 318 states and 407 transitions. [2022-07-22 02:38:53,493 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2022-07-22 02:38:53,495 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 318 states to 318 states and 407 transitions. [2022-07-22 02:38:53,495 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 318 [2022-07-22 02:38:53,496 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 318 [2022-07-22 02:38:53,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 318 states and 407 transitions. [2022-07-22 02:38:53,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 02:38:53,497 INFO L369 hiAutomatonCegarLoop]: Abstraction has 318 states and 407 transitions. [2022-07-22 02:38:53,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states and 407 transitions. [2022-07-22 02:38:53,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2022-07-22 02:38:53,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 318 states have (on average 1.279874213836478) internal successors, (407), 317 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:38:53,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 407 transitions. [2022-07-22 02:38:53,514 INFO L392 hiAutomatonCegarLoop]: Abstraction has 318 states and 407 transitions. [2022-07-22 02:38:53,514 INFO L374 stractBuchiCegarLoop]: Abstraction has 318 states and 407 transitions. [2022-07-22 02:38:53,514 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-22 02:38:53,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 318 states and 407 transitions. [2022-07-22 02:38:53,516 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2022-07-22 02:38:53,516 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:38:53,516 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:38:53,516 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:38:53,517 INFO L180 hiAutomatonCegarLoop]: 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] [2022-07-22 02:38:53,518 INFO L752 eck$LassoCheckResult]: Stem: 1010#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(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 935#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~8#1, main_~tmp~8#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 936#L470 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 937#L463 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 938#L478 main_#t~ret46#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 1012#L849 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 959#L826 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_#t~nondet33#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 960#L499-2 [2022-07-22 02:38:53,518 INFO L754 eck$LassoCheckResult]: Loop: 960#L499-2 assume !false; 1117#L500 assume test_~splverifierCounter~0#1 < 4; 955#L501 test_~tmp~4#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 949#L509 assume !(0 != test_~tmp~4#1); 891#L509-2 test_~tmp___0~1#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 991#L519 assume !(0 != test_~tmp___0~1#1); 970#L519-2 test_~tmp___2~0#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 971#L529 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 994#L537 assume !(0 != test_~tmp___1~0#1); 895#L537-2 assume { :begin_inline_timeShift } true; 1002#L572 assume !(0 != ~pumpRunning~0); 1142#L572-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret34#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1141#L604 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret45#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 1140#L946 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 1139#L951 isHighWaterLevel_#t~ret45#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret45#1;havoc isHighWaterLevel_#t~ret45#1; 1138#L724 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~2#1 := 0; 1137#L724-2 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 1135#L730 processEnvironment_#t~ret34#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret34#1;havoc processEnvironment_#t~ret34#1; 1132#L608 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1131#L596 assume { :end_inline_processEnvironment__wrappee__base } true; 1129#L604-1 assume { :end_inline_processEnvironment } true; 1127#L579-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret4#1, __utac_acc__Specification4_spec__1_#t~ret5#1, __utac_acc__Specification4_spec__1_~tmp~0#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~0#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 1126#L938 __utac_acc__Specification4_spec__1_#t~ret4#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~0#1 := __utac_acc__Specification4_spec__1_#t~ret4#1;havoc __utac_acc__Specification4_spec__1_#t~ret4#1; 1124#L61 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0#1); 1121#L61-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1120#L589 assume { :end_inline_timeShift } true; 960#L499-2 [2022-07-22 02:38:53,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:38:53,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-07-22 02:38:53,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:38:53,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767848081] [2022-07-22 02:38:53,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:38:53,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:38:53,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:38:53,531 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:38:53,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:38:53,545 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:38:53,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:38:53,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1808938509, now seen corresponding path program 1 times [2022-07-22 02:38:53,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:38:53,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011214043] [2022-07-22 02:38:53,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:38:53,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:38:53,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:38:53,569 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:38:53,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:38:53,577 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:38:53,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:38:53,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1682497233, now seen corresponding path program 1 times [2022-07-22 02:38:53,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:38:53,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092064255] [2022-07-22 02:38:53,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:38:53,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:38:53,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:38:53,609 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:38:53,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:38:53,623 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:38:56,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 02:38:56 BoogieIcfgContainer [2022-07-22 02:38:56,005 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 02:38:56,005 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 02:38:56,005 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 02:38:56,006 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 02:38:56,006 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:38:52" (3/4) ... [2022-07-22 02:38:56,007 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-22 02:38:56,037 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 02:38:56,037 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 02:38:56,038 INFO L158 Benchmark]: Toolchain (without parser) took 4292.18ms. Allocated memory was 54.5MB in the beginning and 138.4MB in the end (delta: 83.9MB). Free memory was 30.5MB in the beginning and 72.1MB in the end (delta: -41.6MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. [2022-07-22 02:38:56,038 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 54.5MB. Free memory was 35.7MB in the beginning and 35.7MB in the end (delta: 46.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:38:56,039 INFO L158 Benchmark]: CACSL2BoogieTranslator took 452.46ms. Allocated memory was 54.5MB in the beginning and 77.6MB in the end (delta: 23.1MB). Free memory was 30.3MB in the beginning and 52.8MB in the end (delta: -22.5MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2022-07-22 02:38:56,039 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.20ms. Allocated memory is still 77.6MB. Free memory was 52.6MB in the beginning and 49.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 02:38:56,040 INFO L158 Benchmark]: Boogie Preprocessor took 36.92ms. Allocated memory is still 77.6MB. Free memory was 49.6MB in the beginning and 47.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 02:38:56,040 INFO L158 Benchmark]: RCFGBuilder took 554.37ms. Allocated memory is still 77.6MB. Free memory was 47.7MB in the beginning and 44.8MB in the end (delta: 2.9MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2022-07-22 02:38:56,040 INFO L158 Benchmark]: BuchiAutomizer took 3140.74ms. Allocated memory was 77.6MB in the beginning and 138.4MB in the end (delta: 60.8MB). Free memory was 44.8MB in the beginning and 75.2MB in the end (delta: -30.4MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. [2022-07-22 02:38:56,041 INFO L158 Benchmark]: Witness Printer took 32.22ms. Allocated memory is still 138.4MB. Free memory was 75.2MB in the beginning and 72.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 02:38:56,043 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 54.5MB. Free memory was 35.7MB in the beginning and 35.7MB in the end (delta: 46.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 452.46ms. Allocated memory was 54.5MB in the beginning and 77.6MB in the end (delta: 23.1MB). Free memory was 30.3MB in the beginning and 52.8MB in the end (delta: -22.5MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.20ms. Allocated memory is still 77.6MB. Free memory was 52.6MB in the beginning and 49.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.92ms. Allocated memory is still 77.6MB. Free memory was 49.6MB in the beginning and 47.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 554.37ms. Allocated memory is still 77.6MB. Free memory was 47.7MB in the beginning and 44.8MB in the end (delta: 2.9MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 3140.74ms. Allocated memory was 77.6MB in the beginning and 138.4MB in the end (delta: 60.8MB). Free memory was 44.8MB in the beginning and 75.2MB in the end (delta: -30.4MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. * Witness Printer took 32.22ms. Allocated memory is still 138.4MB. Free memory was 75.2MB in the beginning and 72.1MB 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 3 locations. The remainder module has 318 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. 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 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 261 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 261 mSDsluCounter, 508 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 213 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 295 mSDtfsCounter, 32 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 InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 499]: 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@2f306ff4=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26a61452=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49f3ad56=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3cdcf702=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48511365=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40b23d4c=0, NULL=1, tmp___0=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2aa14862=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c44efad=0, methaneLevelCritical=0, retValue_acc=1, retValue_acc=1, \result=1, tmp=1, retValue_acc=0, \result=1, retValue_acc=1, tmp=1, tmp=1, tmp___2=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4bd362c7=0, \result=0, tmp=0, head=0, \result=1, tmp___1=0, retValue_acc=0, NULL=0, waterLevel=1, systemActive=1, tmp=0, \result=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 499]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L248] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L565] int pumpRunning = 0; [L566] int systemActive = 1; [L767] int cleanupTimeShifts = 4; [L863] int waterLevel = 1; [L864] int methaneLevelCritical = 0; [L840] int retValue_acc ; [L841] int tmp ; [L845] FCALL select_helpers() [L846] FCALL select_features() [L847] CALL, EXPR valid_product() [L474] int retValue_acc ; [L477] retValue_acc = 1 [L478] return (retValue_acc); [L847] RET, EXPR valid_product() [L847] tmp = valid_product() [L849] COND TRUE \read(tmp) [L851] FCALL setup() [L852] CALL runTest() [L834] CALL test() [L490] int splverifierCounter ; [L491] int tmp ; [L492] int tmp___0 ; [L493] int tmp___1 ; [L494] int tmp___2 ; [L497] splverifierCounter = 0 Loop: [L499] COND TRUE 1 [L501] COND TRUE splverifierCounter < 4 [L507] tmp = __VERIFIER_nondet_int() [L509] COND FALSE !(\read(tmp)) [L517] tmp___0 = __VERIFIER_nondet_int() [L519] COND FALSE !(\read(tmp___0)) [L527] tmp___2 = __VERIFIER_nondet_int() [L529] COND FALSE !(\read(tmp___2)) [L535] tmp___1 = __VERIFIER_nondet_int() [L537] COND FALSE !(\read(tmp___1)) [L546] CALL timeShift() [L572] COND FALSE !(\read(pumpRunning)) [L579] COND TRUE \read(systemActive) [L581] CALL processEnvironment() [L601] int tmp ; [L604] COND TRUE ! pumpRunning [L606] CALL, EXPR isHighWaterLevel() [L716] int retValue_acc ; [L717] int tmp ; [L718] int tmp___0 ; [L722] CALL, EXPR isHighWaterSensorDry() [L943] int retValue_acc ; [L946] COND TRUE waterLevel < 2 [L947] retValue_acc = 1 [L948] return (retValue_acc); [L722] RET, EXPR isHighWaterSensorDry() [L722] tmp = isHighWaterSensorDry() [L724] COND TRUE \read(tmp) [L725] tmp___0 = 0 [L729] retValue_acc = tmp___0 [L730] return (retValue_acc); [L606] RET, EXPR isHighWaterLevel() [L606] tmp = isHighWaterLevel() [L608] COND FALSE !(\read(tmp)) [L614] FCALL processEnvironment__wrappee__base() [L581] RET processEnvironment() [L587] CALL __utac_acc__Specification4_spec__1() [L54] int tmp ; [L55] int tmp___0 ; [L59] CALL, EXPR getWaterLevel() [L934] int retValue_acc ; [L937] retValue_acc = waterLevel [L938] return (retValue_acc); [L59] RET, EXPR getWaterLevel() [L59] tmp = getWaterLevel() [L61] COND FALSE !(tmp == 0) [L587] RET __utac_acc__Specification4_spec__1() [L546] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-22 02:38:56,080 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)