./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product38.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_spec5_product38.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 68c6d60a43782147acd714b0904a144255717c2aa47fb6b6f8991672a1483369 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 02:39:27,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 02:39:27,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 02:39:27,163 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 02:39:27,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 02:39:27,165 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 02:39:27,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 02:39:27,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 02:39:27,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 02:39:27,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 02:39:27,180 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 02:39:27,182 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 02:39:27,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 02:39:27,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 02:39:27,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 02:39:27,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 02:39:27,189 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 02:39:27,190 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 02:39:27,192 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 02:39:27,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 02:39:27,197 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 02:39:27,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 02:39:27,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 02:39:27,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 02:39:27,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 02:39:27,206 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 02:39:27,206 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 02:39:27,207 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 02:39:27,207 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 02:39:27,208 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 02:39:27,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 02:39:27,209 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 02:39:27,210 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 02:39:27,211 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 02:39:27,212 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 02:39:27,212 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 02:39:27,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 02:39:27,213 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 02:39:27,213 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 02:39:27,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 02:39:27,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 02:39:27,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 02:39:27,222 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-22 02:39:27,248 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 02:39:27,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 02:39:27,248 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 02:39:27,249 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 02:39:27,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 02:39:27,250 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 02:39:27,250 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 02:39:27,250 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 02:39:27,251 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 02:39:27,251 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 02:39:27,251 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 02:39:27,252 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 02:39:27,252 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 02:39:27,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 02:39:27,252 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 02:39:27,252 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 02:39:27,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 02:39:27,253 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 02:39:27,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 02:39:27,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 02:39:27,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 02:39:27,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 02:39:27,254 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 02:39:27,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 02:39:27,254 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 02:39:27,254 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 02:39:27,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 02:39:27,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 02:39:27,255 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 02:39:27,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 02:39:27,255 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 02:39:27,257 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 02:39:27,258 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68c6d60a43782147acd714b0904a144255717c2aa47fb6b6f8991672a1483369 [2022-07-22 02:39:27,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 02:39:27,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 02:39:27,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 02:39:27,563 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 02:39:27,563 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 02:39:27,564 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product38.cil.c [2022-07-22 02:39:27,605 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/465b162bb/6a64e164bafb4b77b17399fe0356bca0/FLAG2dd545506 [2022-07-22 02:39:27,941 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 02:39:27,941 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product38.cil.c [2022-07-22 02:39:27,951 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/465b162bb/6a64e164bafb4b77b17399fe0356bca0/FLAG2dd545506 [2022-07-22 02:39:28,340 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/465b162bb/6a64e164bafb4b77b17399fe0356bca0 [2022-07-22 02:39:28,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 02:39:28,343 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 02:39:28,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 02:39:28,347 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 02:39:28,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 02:39:28,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:39:28" (1/1) ... [2022-07-22 02:39:28,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aef6127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:28, skipping insertion in model container [2022-07-22 02:39:28,351 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:39:28" (1/1) ... [2022-07-22 02:39:28,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 02:39:28,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 02:39:28,497 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_spec5_product38.cil.c[1605,1618] [2022-07-22 02:39:28,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:39:28,633 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 02:39:28,642 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_spec5_product38.cil.c[1605,1618] [2022-07-22 02:39:28,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:39:28,695 INFO L208 MainTranslator]: Completed translation [2022-07-22 02:39:28,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:28 WrapperNode [2022-07-22 02:39:28,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 02:39:28,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 02:39:28,696 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 02:39:28,697 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 02:39:28,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:28" (1/1) ... [2022-07-22 02:39:28,718 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:28" (1/1) ... [2022-07-22 02:39:28,767 INFO L137 Inliner]: procedures = 56, calls = 157, calls flagged for inlining = 54, calls inlined = 85, statements flattened = 624 [2022-07-22 02:39:28,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 02:39:28,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 02:39:28,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 02:39:28,768 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 02:39:28,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:28" (1/1) ... [2022-07-22 02:39:28,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:28" (1/1) ... [2022-07-22 02:39:28,784 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:28" (1/1) ... [2022-07-22 02:39:28,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:28" (1/1) ... [2022-07-22 02:39:28,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:28" (1/1) ... [2022-07-22 02:39:28,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:28" (1/1) ... [2022-07-22 02:39:28,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:28" (1/1) ... [2022-07-22 02:39:28,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 02:39:28,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 02:39:28,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 02:39:28,816 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 02:39:28,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:28" (1/1) ... [2022-07-22 02:39:28,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:39:28,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:39:28,850 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 02:39:28,869 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 02:39:28,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 02:39:28,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 02:39:28,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 02:39:28,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 02:39:28,945 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 02:39:28,949 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 02:39:29,315 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 02:39:29,329 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 02:39:29,330 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-22 02:39:29,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:39:29 BoogieIcfgContainer [2022-07-22 02:39:29,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 02:39:29,339 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 02:39:29,339 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 02:39:29,341 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 02:39:29,342 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:39:29,342 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 02:39:28" (1/3) ... [2022-07-22 02:39:29,343 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44c918fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:39:29, skipping insertion in model container [2022-07-22 02:39:29,343 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:39:29,343 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:28" (2/3) ... [2022-07-22 02:39:29,343 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44c918fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:39:29, skipping insertion in model container [2022-07-22 02:39:29,343 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:39:29,344 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:39:29" (3/3) ... [2022-07-22 02:39:29,345 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product38.cil.c [2022-07-22 02:39:29,388 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 02:39:29,388 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 02:39:29,388 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 02:39:29,388 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 02:39:29,388 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 02:39:29,388 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 02:39:29,388 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 02:39:29,389 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 02:39:29,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 167 states, 166 states have (on average 1.3674698795180722) internal successors, (227), 166 states have internal predecessors, (227), 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 02:39:29,413 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 107 [2022-07-22 02:39:29,413 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:39:29,413 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:39:29,418 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:39:29,419 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] [2022-07-22 02:39:29,419 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 02:39:29,420 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 167 states, 166 states have (on average 1.3674698795180722) internal successors, (227), 166 states have internal predecessors, (227), 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 02:39:29,426 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 107 [2022-07-22 02:39:29,427 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:39:29,427 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:39:29,427 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:39:29,427 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] [2022-07-22 02:39:29,431 INFO L752 eck$LassoCheckResult]: Stem: 150#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 55#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 47#L894true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 155#L887true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 130#L902true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 116#L151true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 63#L122true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 70#L173true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 16#L917-2true [2022-07-22 02:39:29,431 INFO L754 eck$LassoCheckResult]: Loop: 16#L917-2true assume !false; 19#L918true assume test_~splverifierCounter~0#1 < 4; 118#L919true test_~tmp~8#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 17#L927true assume !(0 != test_~tmp~8#1); 33#L927-2true test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 117#L937true assume !(0 != test_~tmp___0~2#1); 135#L937-2true test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 65#L947true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 40#L868true assume { :end_inline_startSystem } true; 76#L955-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret5#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;havoc isPumpRunning_~retValue_acc~8#1;isPumpRunning_~retValue_acc~8#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; 13#L804true __utac_acc__Specification5_spec__2_#t~ret5#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret5#1;havoc __utac_acc__Specification5_spec__2_#t~ret5#1; 42#L183true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 152#L693true assume !(0 != ~pumpRunning~0); 72#L693-2true assume !(0 != ~systemActive~0); 81#L700-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_#t~ret7#1, __utac_acc__Specification5_spec__3_~tmp~1#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~1#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 145#L661true __utac_acc__Specification5_spec__3_#t~ret6#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~1#1 := __utac_acc__Specification5_spec__3_#t~ret6#1;havoc __utac_acc__Specification5_spec__3_#t~ret6#1; 132#L194true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~1#1); 8#L194-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 92#L710true assume { :end_inline_timeShift } true; 16#L917-2true [2022-07-22 02:39:29,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:39:29,438 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-07-22 02:39:29,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:39:29,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627549243] [2022-07-22 02:39:29,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:39:29,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:39:29,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:29,557 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:39:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:29,590 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:39:29,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:39:29,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1006032203, now seen corresponding path program 1 times [2022-07-22 02:39:29,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:39:29,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403372732] [2022-07-22 02:39:29,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:39:29,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:39:29,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:39:29,676 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 02:39:29,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 02:39:29,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403372732] [2022-07-22 02:39:29,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403372732] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 02:39:29,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 02:39:29,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 02:39:29,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372129825] [2022-07-22 02:39:29,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 02:39:29,682 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 02:39:29,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 02:39:29,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 02:39:29,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 02:39:29,716 INFO L87 Difference]: Start difference. First operand has 167 states, 166 states have (on average 1.3674698795180722) internal successors, (227), 166 states have internal predecessors, (227), 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 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 02:39:29,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 02:39:29,768 INFO L93 Difference]: Finished difference Result 164 states and 214 transitions. [2022-07-22 02:39:29,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 02:39:29,772 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 164 states and 214 transitions. [2022-07-22 02:39:29,776 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 103 [2022-07-22 02:39:29,779 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 164 states to 154 states and 203 transitions. [2022-07-22 02:39:29,780 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 154 [2022-07-22 02:39:29,780 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 154 [2022-07-22 02:39:29,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 154 states and 203 transitions. [2022-07-22 02:39:29,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 02:39:29,782 INFO L369 hiAutomatonCegarLoop]: Abstraction has 154 states and 203 transitions. [2022-07-22 02:39:29,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states and 203 transitions. [2022-07-22 02:39:29,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2022-07-22 02:39:29,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 154 states have (on average 1.3181818181818181) internal successors, (203), 153 states have internal predecessors, (203), 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 02:39:29,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 203 transitions. [2022-07-22 02:39:29,812 INFO L392 hiAutomatonCegarLoop]: Abstraction has 154 states and 203 transitions. [2022-07-22 02:39:29,812 INFO L374 stractBuchiCegarLoop]: Abstraction has 154 states and 203 transitions. [2022-07-22 02:39:29,812 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-22 02:39:29,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 154 states and 203 transitions. [2022-07-22 02:39:29,819 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 103 [2022-07-22 02:39:29,819 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:39:29,819 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:39:29,820 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:39:29,820 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] [2022-07-22 02:39:29,821 INFO L752 eck$LassoCheckResult]: Stem: 491#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 427#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 414#L894 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 415#L887 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 486#L902 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 477#L151 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 438#L122 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 439#L173 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 366#L917-2 [2022-07-22 02:39:29,821 INFO L754 eck$LassoCheckResult]: Loop: 366#L917-2 assume !false; 367#L918 assume test_~splverifierCounter~0#1 < 4; 376#L919 test_~tmp~8#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 368#L927 assume !(0 != test_~tmp~8#1); 370#L927-2 test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 400#L937 assume !(0 != test_~tmp___0~2#1); 479#L937-2 test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 442#L947 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 407#L868 assume { :end_inline_startSystem } true; 408#L955-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret5#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;havoc isPumpRunning_~retValue_acc~8#1;isPumpRunning_~retValue_acc~8#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; 359#L804 __utac_acc__Specification5_spec__2_#t~ret5#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret5#1;havoc __utac_acc__Specification5_spec__2_#t~ret5#1; 360#L183 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 409#L693 assume !(0 != ~pumpRunning~0); 341#L693-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 397#L751 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 381#L725-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 382#L717-3 assume { :end_inline_processEnvironment__wrappee__base } true; 358#L725-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 344#L751-1 assume { :end_inline_processEnvironment } true; 345#L700-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_#t~ret7#1, __utac_acc__Specification5_spec__3_~tmp~1#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~1#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 455#L661 __utac_acc__Specification5_spec__3_#t~ret6#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~1#1 := __utac_acc__Specification5_spec__3_#t~ret6#1;havoc __utac_acc__Specification5_spec__3_#t~ret6#1; 485#L194 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~1#1); 348#L194-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 349#L710 assume { :end_inline_timeShift } true; 366#L917-2 [2022-07-22 02:39:29,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:39:29,822 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-07-22 02:39:29,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:39:29,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097871297] [2022-07-22 02:39:29,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:39:29,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:39:29,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:29,849 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:39:29,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:29,864 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:39:29,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:39:29,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1470608784, now seen corresponding path program 1 times [2022-07-22 02:39:29,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:39:29,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67194196] [2022-07-22 02:39:29,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:39:29,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:39:29,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:39:29,892 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 02:39:29,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 02:39:29,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67194196] [2022-07-22 02:39:29,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67194196] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 02:39:29,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 02:39:29,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 02:39:29,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032717565] [2022-07-22 02:39:29,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 02:39:29,895 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 02:39:29,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 02:39:29,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 02:39:29,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 02:39:29,896 INFO L87 Difference]: Start difference. First operand 154 states and 203 transitions. cyclomatic complexity: 51 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 02:39:29,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 02:39:29,980 INFO L93 Difference]: Finished difference Result 219 states and 278 transitions. [2022-07-22 02:39:29,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 02:39:29,980 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 219 states and 278 transitions. [2022-07-22 02:39:29,984 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 152 [2022-07-22 02:39:29,988 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 219 states to 219 states and 278 transitions. [2022-07-22 02:39:29,989 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 219 [2022-07-22 02:39:29,990 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 219 [2022-07-22 02:39:29,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 219 states and 278 transitions. [2022-07-22 02:39:29,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 02:39:29,993 INFO L369 hiAutomatonCegarLoop]: Abstraction has 219 states and 278 transitions. [2022-07-22 02:39:29,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states and 278 transitions. [2022-07-22 02:39:29,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2022-07-22 02:39:30,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 219 states have (on average 1.269406392694064) internal successors, (278), 218 states have internal predecessors, (278), 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 02:39:30,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 278 transitions. [2022-07-22 02:39:30,001 INFO L392 hiAutomatonCegarLoop]: Abstraction has 219 states and 278 transitions. [2022-07-22 02:39:30,002 INFO L374 stractBuchiCegarLoop]: Abstraction has 219 states and 278 transitions. [2022-07-22 02:39:30,002 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-22 02:39:30,002 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 219 states and 278 transitions. [2022-07-22 02:39:30,004 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 152 [2022-07-22 02:39:30,004 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:39:30,004 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:39:30,005 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:39:30,006 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, 1, 1, 1, 1] [2022-07-22 02:39:30,006 INFO L752 eck$LassoCheckResult]: Stem: 876#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 805#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 792#L894 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 793#L887 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 869#L902 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 861#L151 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 817#L122 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 818#L173 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 743#L917-2 [2022-07-22 02:39:30,006 INFO L754 eck$LassoCheckResult]: Loop: 743#L917-2 assume !false; 744#L918 assume test_~splverifierCounter~0#1 < 4; 750#L919 test_~tmp~8#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 745#L927 assume !(0 != test_~tmp~8#1); 747#L927-2 test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 775#L937 assume !(0 != test_~tmp___0~2#1); 860#L937-2 test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 819#L947 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 820#L955 assume 0 != test_~tmp___1~0#1; 784#L955-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret5#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;havoc isPumpRunning_~retValue_acc~8#1;isPumpRunning_~retValue_acc~8#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; 737#L804 __utac_acc__Specification5_spec__2_#t~ret5#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret5#1;havoc __utac_acc__Specification5_spec__2_#t~ret5#1; 738#L183 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 787#L693 assume !(0 != ~pumpRunning~0); 827#L693-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 773#L751 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 756#L725-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 757#L669-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 798#L674-1 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 835#L853-3 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 796#L853-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 797#L859-1 processEnvironment__wrappee__highWaterSensor_#t~ret36#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret36#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1; 878#L729-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 870#L717-2 assume { :end_inline_processEnvironment__wrappee__base } true; 733#L725-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 723#L751-1 assume { :end_inline_processEnvironment } true; 724#L700-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_#t~ret7#1, __utac_acc__Specification5_spec__3_~tmp~1#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~1#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 836#L661 __utac_acc__Specification5_spec__3_#t~ret6#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~1#1 := __utac_acc__Specification5_spec__3_#t~ret6#1;havoc __utac_acc__Specification5_spec__3_#t~ret6#1; 868#L194 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~1#1); 727#L194-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 728#L710 assume { :end_inline_timeShift } true; 743#L917-2 [2022-07-22 02:39:30,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:39:30,007 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-07-22 02:39:30,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:39:30,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022501905] [2022-07-22 02:39:30,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:39:30,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:39:30,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:30,037 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:39:30,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:30,056 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:39:30,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:39:30,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1559207751, now seen corresponding path program 1 times [2022-07-22 02:39:30,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:39:30,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548180372] [2022-07-22 02:39:30,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:39:30,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:39:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:39:30,099 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 02:39:30,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 02:39:30,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548180372] [2022-07-22 02:39:30,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548180372] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 02:39:30,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 02:39:30,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 02:39:30,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619409325] [2022-07-22 02:39:30,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 02:39:30,100 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 02:39:30,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 02:39:30,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 02:39:30,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 02:39:30,101 INFO L87 Difference]: Start difference. First operand 219 states and 278 transitions. cyclomatic complexity: 61 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 02:39:30,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 02:39:30,276 INFO L93 Difference]: Finished difference Result 972 states and 1229 transitions. [2022-07-22 02:39:30,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 02:39:30,278 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 972 states and 1229 transitions. [2022-07-22 02:39:30,283 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 669 [2022-07-22 02:39:30,286 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 972 states to 972 states and 1229 transitions. [2022-07-22 02:39:30,286 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 972 [2022-07-22 02:39:30,287 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 972 [2022-07-22 02:39:30,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 972 states and 1229 transitions. [2022-07-22 02:39:30,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 02:39:30,291 INFO L369 hiAutomatonCegarLoop]: Abstraction has 972 states and 1229 transitions. [2022-07-22 02:39:30,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states and 1229 transitions. [2022-07-22 02:39:30,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 427. [2022-07-22 02:39:30,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 427 states have (on average 1.2552693208430914) internal successors, (536), 426 states have internal predecessors, (536), 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 02:39:30,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 536 transitions. [2022-07-22 02:39:30,318 INFO L392 hiAutomatonCegarLoop]: Abstraction has 427 states and 536 transitions. [2022-07-22 02:39:30,318 INFO L374 stractBuchiCegarLoop]: Abstraction has 427 states and 536 transitions. [2022-07-22 02:39:30,318 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-22 02:39:30,318 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 427 states and 536 transitions. [2022-07-22 02:39:30,320 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 302 [2022-07-22 02:39:30,320 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:39:30,320 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:39:30,320 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:39:30,320 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, 1, 1, 1, 1, 1, 1] [2022-07-22 02:39:30,321 INFO L752 eck$LassoCheckResult]: Stem: 2110#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 2020#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 2006#L894 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2007#L887 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 2096#L902 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 2085#L151 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 2033#L122 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2034#L173 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2043#L917-2 [2022-07-22 02:39:30,321 INFO L754 eck$LassoCheckResult]: Loop: 2043#L917-2 assume !false; 2290#L918 assume test_~splverifierCounter~0#1 < 4; 2289#L919 test_~tmp~8#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 2287#L927 assume !(0 != test_~tmp~8#1); 2285#L927-2 test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 2086#L937 assume !(0 != test_~tmp___0~2#1); 2088#L937-2 test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 2035#L947 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 2036#L955 assume 0 != test_~tmp___1~0#1; 1996#L955-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret5#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;havoc isPumpRunning_~retValue_acc~8#1;isPumpRunning_~retValue_acc~8#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; 1947#L804 __utac_acc__Specification5_spec__2_#t~ret5#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret5#1;havoc __utac_acc__Specification5_spec__2_#t~ret5#1; 1948#L183 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1999#L693 assume !(0 != ~pumpRunning~0); 2044#L693-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 1982#L751 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 1967#L725-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 1968#L669-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 2012#L674-1 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 2054#L853-3 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2010#L853-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 2011#L859-1 processEnvironment__wrappee__highWaterSensor_#t~ret36#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret36#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1; 2113#L729-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2100#L717-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1943#L725-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1933#L751-1 assume { :end_inline_processEnvironment } true; 1934#L700-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_#t~ret7#1, __utac_acc__Specification5_spec__3_~tmp~1#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~1#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 2055#L661 __utac_acc__Specification5_spec__3_#t~ret6#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~1#1 := __utac_acc__Specification5_spec__3_#t~ret6#1;havoc __utac_acc__Specification5_spec__3_#t~ret6#1; 2098#L194 assume 2 != __utac_acc__Specification5_spec__3_~tmp~1#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;havoc isPumpRunning_~retValue_acc~8#1;isPumpRunning_~retValue_acc~8#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; 2056#L804-1 __utac_acc__Specification5_spec__3_#t~ret7#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret7#1;havoc __utac_acc__Specification5_spec__3_#t~ret7#1; 2057#L198 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 2293#L194-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2292#L710 assume { :end_inline_timeShift } true; 2043#L917-2 [2022-07-22 02:39:30,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:39:30,321 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-07-22 02:39:30,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:39:30,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950193280] [2022-07-22 02:39:30,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:39:30,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:39:30,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:30,330 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:39:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:30,347 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:39:30,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:39:30,348 INFO L85 PathProgramCache]: Analyzing trace with hash -564034238, now seen corresponding path program 1 times [2022-07-22 02:39:30,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:39:30,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200581969] [2022-07-22 02:39:30,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:39:30,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:39:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:30,353 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:39:30,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:30,359 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:39:30,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:39:30,366 INFO L85 PathProgramCache]: Analyzing trace with hash 32523307, now seen corresponding path program 1 times [2022-07-22 02:39:30,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:39:30,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075406839] [2022-07-22 02:39:30,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:39:30,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:39:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:30,376 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:39:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:30,388 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:39:32,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 02:39:32 BoogieIcfgContainer [2022-07-22 02:39:32,826 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 02:39:32,827 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 02:39:32,827 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 02:39:32,827 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 02:39:32,828 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:39:29" (3/4) ... [2022-07-22 02:39:32,830 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-22 02:39:32,885 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 02:39:32,885 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 02:39:32,886 INFO L158 Benchmark]: Toolchain (without parser) took 4542.51ms. Allocated memory was 50.3MB in the beginning and 94.4MB in the end (delta: 44.0MB). Free memory was 26.8MB in the beginning and 19.9MB in the end (delta: 6.9MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2022-07-22 02:39:32,889 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 50.3MB. Free memory was 31.4MB in the beginning and 31.3MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:39:32,889 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.92ms. Allocated memory was 50.3MB in the beginning and 62.9MB in the end (delta: 12.6MB). Free memory was 26.5MB in the beginning and 39.2MB in the end (delta: -12.6MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2022-07-22 02:39:32,890 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.34ms. Allocated memory is still 62.9MB. Free memory was 39.2MB in the beginning and 35.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 02:39:32,890 INFO L158 Benchmark]: Boogie Preprocessor took 47.06ms. Allocated memory is still 62.9MB. Free memory was 35.6MB in the beginning and 33.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 02:39:32,890 INFO L158 Benchmark]: RCFGBuilder took 516.61ms. Allocated memory is still 62.9MB. Free memory was 33.3MB in the beginning and 26.0MB in the end (delta: 7.3MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2022-07-22 02:39:32,891 INFO L158 Benchmark]: BuchiAutomizer took 3487.90ms. Allocated memory was 62.9MB in the beginning and 94.4MB in the end (delta: 31.5MB). Free memory was 43.2MB in the beginning and 23.0MB in the end (delta: 20.3MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. [2022-07-22 02:39:32,891 INFO L158 Benchmark]: Witness Printer took 57.89ms. Allocated memory is still 94.4MB. Free memory was 23.0MB in the beginning and 19.9MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 02:39:32,895 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 50.3MB. Free memory was 31.4MB in the beginning and 31.3MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.92ms. Allocated memory was 50.3MB in the beginning and 62.9MB in the end (delta: 12.6MB). Free memory was 26.5MB in the beginning and 39.2MB in the end (delta: -12.6MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.34ms. Allocated memory is still 62.9MB. Free memory was 39.2MB in the beginning and 35.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.06ms. Allocated memory is still 62.9MB. Free memory was 35.6MB in the beginning and 33.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 516.61ms. Allocated memory is still 62.9MB. Free memory was 33.3MB in the beginning and 26.0MB in the end (delta: 7.3MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 3487.90ms. Allocated memory was 62.9MB in the beginning and 94.4MB in the end (delta: 31.5MB). Free memory was 43.2MB in the beginning and 23.0MB in the end (delta: 20.3MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. * Witness Printer took 57.89ms. Allocated memory is still 94.4MB. Free memory was 23.0MB in the beginning and 19.9MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 427 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 545 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, 1277 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1277 mSDsluCounter, 1824 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1054 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 168 IncrementalHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 770 mSDtfsCounter, 168 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 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: 917]: 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@4409e4ea=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e966cf=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f95b272=29, tmp___0=0, retValue_acc=0, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38102e09=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45157f7f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fae65e6=0, methaneLevelCritical=0, tmp=0, retValue_acc=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6893a8a=0, retValue_acc=1, \result=1, tmp=1, \result=1, tmp=1, tmp___2=0, \result=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, tmp=1, \result=0, tmp___0=0, head=0, \result=1, tmp___1=29, retValue_acc=1, NULL=0, waterLevel=1, systemActive=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@348da539=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b90213d=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@416c958f=0, tmp=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a115a20=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 917]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L59] int cleanupTimeShifts = 4; [L167] int switchedOnBeforeTS ; [L385] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L586] int waterLevel = 1; [L587] int methaneLevelCritical = 0; [L683] int pumpRunning = 0; [L684] int systemActive = 1; [L142] int retValue_acc ; [L143] int tmp ; [L147] FCALL select_helpers() [L148] FCALL select_features() [L149] CALL, EXPR valid_product() [L898] int retValue_acc ; [L901] retValue_acc = 1 [L902] return (retValue_acc); [L149] RET, EXPR valid_product() [L149] tmp = valid_product() [L151] COND TRUE \read(tmp) [L153] FCALL setup() [L154] CALL runTest() [L132] CALL __utac_acc__Specification5_spec__1() [L172] switchedOnBeforeTS = 0 [L132] RET __utac_acc__Specification5_spec__1() [L133] CALL test() [L908] int splverifierCounter ; [L909] int tmp ; [L910] int tmp___0 ; [L911] int tmp___1 ; [L912] int tmp___2 ; [L915] splverifierCounter = 0 Loop: [L917] COND TRUE 1 [L919] COND TRUE splverifierCounter < 4 [L925] tmp = __VERIFIER_nondet_int() [L927] COND FALSE !(\read(tmp)) [L935] tmp___0 = __VERIFIER_nondet_int() [L937] COND FALSE !(\read(tmp___0)) [L945] tmp___2 = __VERIFIER_nondet_int() [L947] COND FALSE !(\read(tmp___2)) [L953] tmp___1 = __VERIFIER_nondet_int() [L955] COND TRUE \read(tmp___1) [L962] CALL timeShift() [L691] CALL __utac_acc__Specification5_spec__2() [L181] CALL, EXPR isPumpRunning() [L800] int retValue_acc ; [L803] retValue_acc = pumpRunning [L804] return (retValue_acc); [L181] RET, EXPR isPumpRunning() [L181] switchedOnBeforeTS = isPumpRunning() [L691] RET __utac_acc__Specification5_spec__2() [L693] COND FALSE !(\read(pumpRunning)) [L700] COND TRUE \read(systemActive) [L702] CALL processEnvironment() [L748] int tmp ; [L751] COND FALSE !(\read(pumpRunning)) [L766] CALL processEnvironment__wrappee__highWaterSensor() [L722] int tmp ; [L725] COND TRUE ! pumpRunning [L727] CALL, EXPR isHighWaterLevel() [L845] int retValue_acc ; [L846] int tmp ; [L847] int tmp___0 ; [L851] CALL, EXPR isHighWaterSensorDry() [L666] int retValue_acc ; [L669] COND TRUE waterLevel < 2 [L670] retValue_acc = 1 [L671] return (retValue_acc); [L851] RET, EXPR isHighWaterSensorDry() [L851] tmp = isHighWaterSensorDry() [L853] COND TRUE \read(tmp) [L854] tmp___0 = 0 [L858] retValue_acc = tmp___0 [L859] return (retValue_acc); [L727] RET, EXPR isHighWaterLevel() [L727] tmp = isHighWaterLevel() [L729] COND FALSE !(\read(tmp)) [L735] FCALL processEnvironment__wrappee__base() [L766] RET processEnvironment__wrappee__highWaterSensor() [L702] RET processEnvironment() [L708] CALL __utac_acc__Specification5_spec__3() [L187] int tmp ; [L188] int tmp___0 ; [L192] CALL, EXPR getWaterLevel() [L657] int retValue_acc ; [L660] retValue_acc = waterLevel [L661] return (retValue_acc); [L192] RET, EXPR getWaterLevel() [L192] tmp = getWaterLevel() [L194] COND TRUE tmp != 2 [L196] CALL, EXPR isPumpRunning() [L800] int retValue_acc ; [L803] retValue_acc = pumpRunning [L804] return (retValue_acc); [L196] RET, EXPR isPumpRunning() [L196] tmp___0 = isPumpRunning() [L198] COND FALSE !(\read(tmp___0)) [L708] RET __utac_acc__Specification5_spec__3() [L962] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-22 02:39:32,939 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)