./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product52.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 4583285deb29d8014ded34089a46614a743cea13eee9bbb990cdfd770bfce36e --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 10:00:03,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 10:00:03,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 10:00:03,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 10:00:03,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 10:00:03,886 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 10:00:03,887 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 10:00:03,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 10:00:03,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 10:00:03,896 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 10:00:03,896 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 10:00:03,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 10:00:03,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 10:00:03,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 10:00:03,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 10:00:03,902 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 10:00:03,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 10:00:03,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 10:00:03,906 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 10:00:03,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 10:00:03,910 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 10:00:03,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 10:00:03,911 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 10:00:03,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 10:00:03,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 10:00:03,919 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 10:00:03,919 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 10:00:03,919 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 10:00:03,920 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 10:00:03,921 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 10:00:03,921 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 10:00:03,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 10:00:03,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 10:00:03,923 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 10:00:03,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 10:00:03,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 10:00:03,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 10:00:03,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 10:00:03,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 10:00:03,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 10:00:03,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 10:00:03,927 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-16 10:00:03,949 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 10:00:03,951 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 10:00:03,952 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 10:00:03,952 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 10:00:03,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 10:00:03,953 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 10:00:03,953 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 10:00:03,953 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-16 10:00:03,953 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-16 10:00:03,953 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-16 10:00:03,954 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-16 10:00:03,954 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-16 10:00:03,954 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-16 10:00:03,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 10:00:03,954 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 10:00:03,955 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-16 10:00:03,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 10:00:03,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 10:00:03,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 10:00:03,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-16 10:00:03,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-16 10:00:03,955 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-16 10:00:03,956 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 10:00:03,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 10:00:03,956 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-16 10:00:03,956 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 10:00:03,956 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-16 10:00:03,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 10:00:03,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 10:00:03,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 10:00:03,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 10:00:03,957 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 10:00:03,958 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-16 10:00:03,958 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4583285deb29d8014ded34089a46614a743cea13eee9bbb990cdfd770bfce36e [2021-12-16 10:00:04,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 10:00:04,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 10:00:04,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 10:00:04,195 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 10:00:04,195 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 10:00:04,197 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2021-12-16 10:00:04,247 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b06a1f2e6/d3dc7ae5d86a4fb89d0bf8cf1ae09dc7/FLAGc6020afa2 [2021-12-16 10:00:04,684 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 10:00:04,699 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2021-12-16 10:00:04,713 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b06a1f2e6/d3dc7ae5d86a4fb89d0bf8cf1ae09dc7/FLAGc6020afa2 [2021-12-16 10:00:04,728 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b06a1f2e6/d3dc7ae5d86a4fb89d0bf8cf1ae09dc7 [2021-12-16 10:00:04,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 10:00:04,732 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 10:00:04,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 10:00:04,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 10:00:04,736 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 10:00:04,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 10:00:04" (1/1) ... [2021-12-16 10:00:04,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@201f9c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:00:04, skipping insertion in model container [2021-12-16 10:00:04,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 10:00:04" (1/1) ... [2021-12-16 10:00:04,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 10:00:04,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 10:00:05,018 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c[19177,19190] [2021-12-16 10:00:05,019 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 10:00:05,029 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 10:00:05,101 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c[19177,19190] [2021-12-16 10:00:05,105 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 10:00:05,122 INFO L208 MainTranslator]: Completed translation [2021-12-16 10:00:05,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:00:05 WrapperNode [2021-12-16 10:00:05,123 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 10:00:05,124 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 10:00:05,124 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 10:00:05,125 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 10:00:05,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:00:05" (1/1) ... [2021-12-16 10:00:05,154 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:00:05" (1/1) ... [2021-12-16 10:00:05,191 INFO L137 Inliner]: procedures = 58, calls = 158, calls flagged for inlining = 55, calls inlined = 81, statements flattened = 625 [2021-12-16 10:00:05,193 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 10:00:05,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 10:00:05,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 10:00:05,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 10:00:05,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:00:05" (1/1) ... [2021-12-16 10:00:05,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:00:05" (1/1) ... [2021-12-16 10:00:05,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:00:05" (1/1) ... [2021-12-16 10:00:05,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:00:05" (1/1) ... [2021-12-16 10:00:05,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:00:05" (1/1) ... [2021-12-16 10:00:05,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:00:05" (1/1) ... [2021-12-16 10:00:05,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:00:05" (1/1) ... [2021-12-16 10:00:05,220 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 10:00:05,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 10:00:05,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 10:00:05,221 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 10:00:05,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:00:05" (1/1) ... [2021-12-16 10:00:05,238 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:00:05,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:00:05,279 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) [2021-12-16 10:00:05,297 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 [2021-12-16 10:00:05,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 10:00:05,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 10:00:05,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 10:00:05,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 10:00:05,392 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 10:00:05,394 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 10:00:05,786 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 10:00:05,793 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 10:00:05,793 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-16 10:00:05,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:00:05 BoogieIcfgContainer [2021-12-16 10:00:05,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 10:00:05,796 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-16 10:00:05,796 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-16 10:00:05,798 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-16 10:00:05,801 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 10:00:05,801 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.12 10:00:04" (1/3) ... [2021-12-16 10:00:05,804 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33735ac4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 10:00:05, skipping insertion in model container [2021-12-16 10:00:05,805 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 10:00:05,805 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:00:05" (2/3) ... [2021-12-16 10:00:05,805 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33735ac4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 10:00:05, skipping insertion in model container [2021-12-16 10:00:05,805 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 10:00:05,805 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:00:05" (3/3) ... [2021-12-16 10:00:05,806 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product52.cil.c [2021-12-16 10:00:05,834 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-16 10:00:05,834 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-16 10:00:05,834 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-16 10:00:05,834 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-16 10:00:05,834 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-16 10:00:05,834 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-16 10:00:05,834 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-16 10:00:05,835 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-16 10:00:05,847 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 171 states, 170 states have (on average 1.3823529411764706) internal successors, (235), 170 states have internal predecessors, (235), 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) [2021-12-16 10:00:05,874 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 111 [2021-12-16 10:00:05,874 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 10:00:05,874 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 10:00:05,879 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 10:00:05,880 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 10:00:05,880 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-16 10:00:05,881 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 171 states, 170 states have (on average 1.3823529411764706) internal successors, (235), 170 states have internal predecessors, (235), 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) [2021-12-16 10:00:05,886 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 111 [2021-12-16 10:00:05,886 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 10:00:05,886 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 10:00:05,887 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 10:00:05,887 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 10:00:05,890 INFO L791 eck$LassoCheckResult]: Stem: 153#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 61#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~4#1, main_~tmp~5#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 13#L518true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 90#L511true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~6#1;havoc valid_product_~retValue_acc~6#1;valid_product_~retValue_acc~6#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~6#1; 122#L526true main_#t~ret21#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 39#L442true assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 155#L414true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 62#L463true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 65#L66-2true [2021-12-16 10:00:05,891 INFO L793 eck$LassoCheckResult]: Loop: 65#L66-2true assume !false; 152#L67true assume test_~splverifierCounter~0#1 < 4; 161#L68true test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 85#L76true assume !(0 != test_~tmp~0#1); 156#L76-2true test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 5#L86true assume !(0 != test_~tmp___0~0#1); 171#L86-2true test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 143#L96true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 31#L104true assume !(0 != test_~tmp___1~0#1); 170#L104-2true assume { :begin_inline_timeShift } true; 131#L142true assume !(0 != ~pumpRunning~0); 125#L142-2true assume !(0 != ~systemActive~0); 163#L149-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_#t~ret23#1, __utac_acc__Specification2_spec__2_~tmp~6#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~6#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 23#L575true __utac_acc__Specification2_spec__2_#t~ret22#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~6#1 := __utac_acc__Specification2_spec__2_#t~ret22#1;havoc __utac_acc__Specification2_spec__2_#t~ret22#1; 78#L474true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6#1);~methAndRunningLastTime~0 := 0; 25#L474-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 97#L159true assume { :end_inline_timeShift } true; 65#L66-2true [2021-12-16 10:00:05,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:00:05,895 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-12-16 10:00:05,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:00:05,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274360234] [2021-12-16 10:00:05,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:00:05,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:00:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:00:05,989 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 10:00:06,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:00:06,046 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 10:00:06,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:00:06,051 INFO L85 PathProgramCache]: Analyzing trace with hash 176401079, now seen corresponding path program 1 times [2021-12-16 10:00:06,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:00:06,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639581001] [2021-12-16 10:00:06,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:00:06,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:00:06,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:00:06,074 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 10:00:06,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:00:06,082 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 10:00:06,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:00:06,085 INFO L85 PathProgramCache]: Analyzing trace with hash -559540498, now seen corresponding path program 1 times [2021-12-16 10:00:06,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:00:06,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579013216] [2021-12-16 10:00:06,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:00:06,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:00:06,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 10:00:06,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 10:00:06,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 10:00:06,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579013216] [2021-12-16 10:00:06,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579013216] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 10:00:06,216 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 10:00:06,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 10:00:06,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717572551] [2021-12-16 10:00:06,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 10:00:06,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 10:00:06,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 10:00:06,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-16 10:00:06,399 INFO L87 Difference]: Start difference. First operand has 171 states, 170 states have (on average 1.3823529411764706) internal successors, (235), 170 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 10:00:06,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 10:00:06,568 INFO L93 Difference]: Finished difference Result 553 states and 735 transitions. [2021-12-16 10:00:06,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 10:00:06,574 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 553 states and 735 transitions. [2021-12-16 10:00:06,590 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 360 [2021-12-16 10:00:06,602 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 553 states to 513 states and 695 transitions. [2021-12-16 10:00:06,603 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 513 [2021-12-16 10:00:06,605 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 513 [2021-12-16 10:00:06,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 513 states and 695 transitions. [2021-12-16 10:00:06,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 10:00:06,614 INFO L681 BuchiCegarLoop]: Abstraction has 513 states and 695 transitions. [2021-12-16 10:00:06,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states and 695 transitions. [2021-12-16 10:00:06,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 213. [2021-12-16 10:00:06,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 213 states have (on average 1.352112676056338) internal successors, (288), 212 states have internal predecessors, (288), 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) [2021-12-16 10:00:06,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 288 transitions. [2021-12-16 10:00:06,660 INFO L704 BuchiCegarLoop]: Abstraction has 213 states and 288 transitions. [2021-12-16 10:00:06,660 INFO L587 BuchiCegarLoop]: Abstraction has 213 states and 288 transitions. [2021-12-16 10:00:06,661 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-16 10:00:06,661 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 213 states and 288 transitions. [2021-12-16 10:00:06,663 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 149 [2021-12-16 10:00:06,663 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 10:00:06,663 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 10:00:06,664 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 10:00:06,664 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] [2021-12-16 10:00:06,665 INFO L791 eck$LassoCheckResult]: Stem: 900#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 840#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~4#1, main_~tmp~5#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 761#L518 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 762#L511 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~6#1;havoc valid_product_~retValue_acc~6#1;valid_product_~retValue_acc~6#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~6#1; 868#L526 main_#t~ret21#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 807#L442 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 808#L414 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 841#L463 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 842#L66-2 [2021-12-16 10:00:06,665 INFO L793 eck$LassoCheckResult]: Loop: 842#L66-2 assume !false; 844#L67 assume test_~splverifierCounter~0#1 < 4; 899#L68 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 864#L76 assume !(0 != test_~tmp~0#1); 790#L76-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 744#L86 assume !(0 != test_~tmp___0~0#1); 746#L86-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 897#L96 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 867#L351 assume { :end_inline_startSystem } true; 795#L104-2 assume { :begin_inline_timeShift } true; 888#L142 assume !(0 != ~pumpRunning~0); 788#L142-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 884#L200 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 892#L174-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 806#L166-3 assume { :end_inline_processEnvironment__wrappee__base } true; 755#L174-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 756#L200-1 assume { :end_inline_processEnvironment } true; 797#L149-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_#t~ret23#1, __utac_acc__Specification2_spec__2_~tmp~6#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~6#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 780#L575 __utac_acc__Specification2_spec__2_#t~ret22#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~6#1 := __utac_acc__Specification2_spec__2_#t~ret22#1;havoc __utac_acc__Specification2_spec__2_#t~ret22#1; 781#L474 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6#1);~methAndRunningLastTime~0 := 0; 784#L474-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 785#L159 assume { :end_inline_timeShift } true; 842#L66-2 [2021-12-16 10:00:06,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:00:06,665 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-12-16 10:00:06,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:00:06,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601562991] [2021-12-16 10:00:06,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:00:06,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:00:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:00:06,695 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 10:00:06,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:00:06,713 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 10:00:06,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:00:06,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1767340359, now seen corresponding path program 1 times [2021-12-16 10:00:06,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:00:06,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642058170] [2021-12-16 10:00:06,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:00:06,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:00:06,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 10:00:06,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 10:00:06,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 10:00:06,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642058170] [2021-12-16 10:00:06,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642058170] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 10:00:06,739 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 10:00:06,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 10:00:06,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916817060] [2021-12-16 10:00:06,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 10:00:06,740 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-16 10:00:06,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 10:00:06,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 10:00:06,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 10:00:06,741 INFO L87 Difference]: Start difference. First operand 213 states and 288 transitions. cyclomatic complexity: 78 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-12-16 10:00:06,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 10:00:06,809 INFO L93 Difference]: Finished difference Result 267 states and 346 transitions. [2021-12-16 10:00:06,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 10:00:06,810 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 267 states and 346 transitions. [2021-12-16 10:00:06,811 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 191 [2021-12-16 10:00:06,812 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 267 states to 267 states and 346 transitions. [2021-12-16 10:00:06,813 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 267 [2021-12-16 10:00:06,813 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 267 [2021-12-16 10:00:06,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 267 states and 346 transitions. [2021-12-16 10:00:06,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 10:00:06,814 INFO L681 BuchiCegarLoop]: Abstraction has 267 states and 346 transitions. [2021-12-16 10:00:06,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states and 346 transitions. [2021-12-16 10:00:06,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2021-12-16 10:00:06,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 267 states have (on average 1.2958801498127341) internal successors, (346), 266 states have internal predecessors, (346), 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) [2021-12-16 10:00:06,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 346 transitions. [2021-12-16 10:00:06,823 INFO L704 BuchiCegarLoop]: Abstraction has 267 states and 346 transitions. [2021-12-16 10:00:06,823 INFO L587 BuchiCegarLoop]: Abstraction has 267 states and 346 transitions. [2021-12-16 10:00:06,823 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-16 10:00:06,823 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 267 states and 346 transitions. [2021-12-16 10:00:06,824 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 191 [2021-12-16 10:00:06,825 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 10:00:06,825 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 10:00:06,825 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 10:00:06,825 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 10:00:06,826 INFO L791 eck$LassoCheckResult]: Stem: 1401#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1327#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~4#1, main_~tmp~5#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 1249#L518 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1250#L511 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~6#1;havoc valid_product_~retValue_acc~6#1;valid_product_~retValue_acc~6#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~6#1; 1360#L526 main_#t~ret21#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 1294#L442 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 1295#L414 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1328#L463 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1329#L66-2 [2021-12-16 10:00:06,826 INFO L793 eck$LassoCheckResult]: Loop: 1329#L66-2 assume !false; 1469#L67 assume test_~splverifierCounter~0#1 < 4; 1467#L68 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 1465#L76 assume !(0 != test_~tmp~0#1); 1463#L76-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1230#L86 assume !(0 != test_~tmp___0~0#1); 1232#L86-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1405#L96 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 1281#L104 assume !(0 != test_~tmp___1~0#1); 1282#L104-2 assume { :begin_inline_timeShift } true; 1404#L142 assume !(0 != ~pumpRunning~0); 1379#L142-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1380#L200 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 1389#L174-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1; 1390#L615-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; 1387#L620-1 isHighWaterLevel_#t~ret19#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret19#1;havoc isHighWaterLevel_#t~ret19#1; 1239#L302-3 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1240#L302-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1296#L308-1 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 1297#L178-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1320#L166-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1241#L174-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1242#L200-1 assume { :end_inline_processEnvironment } true; 1284#L149-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_#t~ret23#1, __utac_acc__Specification2_spec__2_~tmp~6#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~6#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 1266#L575 __utac_acc__Specification2_spec__2_#t~ret22#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~6#1 := __utac_acc__Specification2_spec__2_#t~ret22#1;havoc __utac_acc__Specification2_spec__2_#t~ret22#1; 1267#L474 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6#1);~methAndRunningLastTime~0 := 0; 1472#L474-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1471#L159 assume { :end_inline_timeShift } true; 1329#L66-2 [2021-12-16 10:00:06,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:00:06,826 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-12-16 10:00:06,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:00:06,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375404552] [2021-12-16 10:00:06,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:00:06,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:00:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:00:06,833 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 10:00:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:00:06,840 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 10:00:06,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:00:06,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1774141053, now seen corresponding path program 1 times [2021-12-16 10:00:06,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:00:06,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992464742] [2021-12-16 10:00:06,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:00:06,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:00:06,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:00:06,845 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 10:00:06,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:00:06,860 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 10:00:06,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:00:06,861 INFO L85 PathProgramCache]: Analyzing trace with hash -775070484, now seen corresponding path program 1 times [2021-12-16 10:00:06,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:00:06,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888022384] [2021-12-16 10:00:06,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:00:06,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:00:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:00:06,868 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 10:00:06,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:00:06,877 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 10:00:09,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.12 10:00:09 BoogieIcfgContainer [2021-12-16 10:00:09,354 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-16 10:00:09,355 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 10:00:09,355 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 10:00:09,355 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 10:00:09,355 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:00:05" (3/4) ... [2021-12-16 10:00:09,357 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-16 10:00:09,429 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-16 10:00:09,431 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 10:00:09,432 INFO L158 Benchmark]: Toolchain (without parser) took 4699.42ms. Allocated memory was 92.3MB in the beginning and 144.7MB in the end (delta: 52.4MB). Free memory was 59.7MB in the beginning and 109.4MB in the end (delta: -49.7MB). Peak memory consumption was 1.0MB. Max. memory is 16.1GB. [2021-12-16 10:00:09,432 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 75.5MB. Free memory was 45.9MB in the beginning and 45.9MB in the end (delta: 24.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 10:00:09,432 INFO L158 Benchmark]: CACSL2BoogieTranslator took 390.42ms. Allocated memory is still 92.3MB. Free memory was 59.5MB in the beginning and 59.5MB in the end (delta: -29.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-16 10:00:09,433 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.26ms. Allocated memory is still 92.3MB. Free memory was 59.5MB in the beginning and 56.1MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 10:00:09,433 INFO L158 Benchmark]: Boogie Preprocessor took 25.89ms. Allocated memory is still 92.3MB. Free memory was 56.1MB in the beginning and 54.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 10:00:09,433 INFO L158 Benchmark]: RCFGBuilder took 574.47ms. Allocated memory is still 92.3MB. Free memory was 54.0MB in the beginning and 64.1MB in the end (delta: -10.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-12-16 10:00:09,434 INFO L158 Benchmark]: BuchiAutomizer took 3558.57ms. Allocated memory was 92.3MB in the beginning and 144.7MB in the end (delta: 52.4MB). Free memory was 63.6MB in the beginning and 112.5MB in the end (delta: -48.9MB). Peak memory consumption was 61.4MB. Max. memory is 16.1GB. [2021-12-16 10:00:09,434 INFO L158 Benchmark]: Witness Printer took 76.68ms. Allocated memory is still 144.7MB. Free memory was 112.5MB in the beginning and 109.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 10:00:09,435 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 75.5MB. Free memory was 45.9MB in the beginning and 45.9MB in the end (delta: 24.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 390.42ms. Allocated memory is still 92.3MB. Free memory was 59.5MB in the beginning and 59.5MB in the end (delta: -29.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.26ms. Allocated memory is still 92.3MB. Free memory was 59.5MB in the beginning and 56.1MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.89ms. Allocated memory is still 92.3MB. Free memory was 56.1MB in the beginning and 54.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 574.47ms. Allocated memory is still 92.3MB. Free memory was 54.0MB in the beginning and 64.1MB in the end (delta: -10.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 3558.57ms. Allocated memory was 92.3MB in the beginning and 144.7MB in the end (delta: 52.4MB). Free memory was 63.6MB in the beginning and 112.5MB in the end (delta: -48.9MB). Peak memory consumption was 61.4MB. Max. memory is 16.1GB. * Witness Printer took 76.68ms. Allocated memory is still 144.7MB. Free memory was 112.5MB in the beginning and 109.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 267 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 300 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 267 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1194 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1194 mSDsluCounter, 1909 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1462 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83 IncrementalHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 447 mSDtfsCounter, 83 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 66]: 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, pumpRunning=0, retValue_acc=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2303c473=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a83fb1a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2afb24fa=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@762a2094=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30a3962d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c96c7c6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63c67860=0, methaneLevelCritical=0, tmp=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56f39773=0, \result=0, \result=1, retValue_acc=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@445b83c4=0, tmp=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@523ddce5=0, tmp___2=0, methAndRunningLastTime=0, tmp=0, cleanupTimeShifts=4, tmp=1, \result=0, tmp=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp___0=0, \result=0, retValue_acc=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 66]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L134] int pumpRunning = 0; [L135] int systemActive = 1; [L355] int cleanupTimeShifts = 4; [L457] int methAndRunningLastTime ; [L532] int waterLevel = 1; [L533] int methaneLevelCritical = 0; [L804] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L433] int retValue_acc ; [L434] int tmp ; [L438] FCALL select_helpers() [L439] FCALL select_features() [L440] CALL, EXPR valid_product() [L522] int retValue_acc ; [L525] retValue_acc = 1 [L526] return (retValue_acc); [L440] RET, EXPR valid_product() [L440] tmp = valid_product() [L442] COND TRUE \read(tmp) [L444] FCALL setup() [L445] CALL runTest() [L423] CALL __utac_acc__Specification2_spec__1() [L462] methAndRunningLastTime = 0 [L423] RET __utac_acc__Specification2_spec__1() [L424] CALL test() [L57] int splverifierCounter ; [L58] int tmp ; [L59] int tmp___0 ; [L60] int tmp___1 ; [L61] int tmp___2 ; [L64] splverifierCounter = 0 Loop: [L66] COND TRUE 1 [L68] COND TRUE splverifierCounter < 4 [L74] tmp = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp)) [L84] tmp___0 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___0)) [L94] tmp___2 = __VERIFIER_nondet_int() [L96] COND FALSE !(\read(tmp___2)) [L102] tmp___1 = __VERIFIER_nondet_int() [L104] COND FALSE !(\read(tmp___1)) [L113] CALL timeShift() [L142] COND FALSE !(\read(pumpRunning)) [L149] COND TRUE \read(systemActive) [L151] CALL processEnvironment() [L197] int tmp ; [L200] COND FALSE !(\read(pumpRunning)) [L215] CALL processEnvironment__wrappee__highWaterSensor() [L171] int tmp ; [L174] COND TRUE ! pumpRunning [L176] CALL, EXPR isHighWaterLevel() [L294] int retValue_acc ; [L295] int tmp ; [L296] int tmp___0 ; [L300] CALL, EXPR isHighWaterSensorDry() [L612] int retValue_acc ; [L615] COND TRUE waterLevel < 2 [L616] retValue_acc = 1 [L617] return (retValue_acc); [L300] RET, EXPR isHighWaterSensorDry() [L300] tmp = isHighWaterSensorDry() [L302] COND TRUE \read(tmp) [L303] tmp___0 = 0 [L307] retValue_acc = tmp___0 [L308] return (retValue_acc); [L176] RET, EXPR isHighWaterLevel() [L176] tmp = isHighWaterLevel() [L178] COND FALSE !(\read(tmp)) [L184] FCALL processEnvironment__wrappee__base() [L215] RET processEnvironment__wrappee__highWaterSensor() [L151] RET processEnvironment() [L157] CALL __utac_acc__Specification2_spec__2() [L467] int tmp ; [L468] int tmp___0 ; [L472] CALL, EXPR isMethaneLevelCritical() [L571] int retValue_acc ; [L574] retValue_acc = methaneLevelCritical [L575] return (retValue_acc); [L472] RET, EXPR isMethaneLevelCritical() [L472] tmp = isMethaneLevelCritical() [L474] COND FALSE !(\read(tmp)) [L490] methAndRunningLastTime = 0 [L157] RET __utac_acc__Specification2_spec__2() [L113] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-16 10:00:09,481 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)