./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ae007674 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_spec3_product43.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 b1639abd1442c0be189a21b610783cf9fd230aa6a3ef085b8b036961bd01ca7b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 09:40:46,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 09:40:46,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 09:40:46,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 09:40:46,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 09:40:46,766 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 09:40:46,767 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 09:40:46,771 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 09:40:46,773 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 09:40:46,776 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 09:40:46,777 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 09:40:46,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 09:40:46,778 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 09:40:46,780 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 09:40:46,781 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 09:40:46,786 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 09:40:46,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 09:40:46,787 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 09:40:46,789 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 09:40:46,793 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 09:40:46,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 09:40:46,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 09:40:46,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 09:40:46,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 09:40:46,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 09:40:46,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 09:40:46,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 09:40:46,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 09:40:46,803 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 09:40:46,804 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 09:40:46,804 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 09:40:46,804 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 09:40:46,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 09:40:46,806 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 09:40:46,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 09:40:46,807 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 09:40:46,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 09:40:46,808 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 09:40:46,808 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 09:40:46,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 09:40:46,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 09:40:46,813 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-28 09:40:46,841 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 09:40:46,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 09:40:46,842 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 09:40:46,842 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 09:40:46,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 09:40:46,844 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 09:40:46,844 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 09:40:46,844 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-28 09:40:46,845 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-28 09:40:46,845 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-28 09:40:46,845 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-28 09:40:46,846 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-28 09:40:46,846 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-28 09:40:46,846 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 09:40:46,846 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 09:40:46,846 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 09:40:46,847 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 09:40:46,847 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 09:40:46,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 09:40:46,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-28 09:40:46,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-28 09:40:46,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-28 09:40:46,848 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 09:40:46,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 09:40:46,848 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-28 09:40:46,848 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 09:40:46,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-28 09:40:46,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 09:40:46,848 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 09:40:46,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 09:40:46,849 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 09:40:46,850 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-28 09:40:46,850 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1639abd1442c0be189a21b610783cf9fd230aa6a3ef085b8b036961bd01ca7b [2021-12-28 09:40:47,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 09:40:47,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 09:40:47,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 09:40:47,141 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 09:40:47,142 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 09:40:47,143 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c [2021-12-28 09:40:47,187 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f54db9274/7e71af927d2949d0aae1c80048c12838/FLAGf21edad92 [2021-12-28 09:40:47,518 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 09:40:47,519 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c [2021-12-28 09:40:47,530 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f54db9274/7e71af927d2949d0aae1c80048c12838/FLAGf21edad92 [2021-12-28 09:40:47,917 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f54db9274/7e71af927d2949d0aae1c80048c12838 [2021-12-28 09:40:47,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 09:40:47,921 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 09:40:47,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 09:40:47,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 09:40:47,925 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 09:40:47,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:40:47" (1/1) ... [2021-12-28 09:40:47,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c032277 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:47, skipping insertion in model container [2021-12-28 09:40:47,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:40:47" (1/1) ... [2021-12-28 09:40:47,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 09:40:47,966 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 09:40:48,112 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_spec3_product43.cil.c[2897,2910] [2021-12-28 09:40:48,202 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:40:48,208 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 09:40:48,219 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_spec3_product43.cil.c[2897,2910] [2021-12-28 09:40:48,256 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:40:48,268 INFO L208 MainTranslator]: Completed translation [2021-12-28 09:40:48,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:48 WrapperNode [2021-12-28 09:40:48,269 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 09:40:48,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 09:40:48,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 09:40:48,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 09:40:48,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:48" (1/1) ... [2021-12-28 09:40:48,284 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:48" (1/1) ... [2021-12-28 09:40:48,307 INFO L137 Inliner]: procedures = 54, calls = 154, calls flagged for inlining = 51, calls inlined = 61, statements flattened = 492 [2021-12-28 09:40:48,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 09:40:48,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 09:40:48,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 09:40:48,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 09:40:48,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:48" (1/1) ... [2021-12-28 09:40:48,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:48" (1/1) ... [2021-12-28 09:40:48,317 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:48" (1/1) ... [2021-12-28 09:40:48,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:48" (1/1) ... [2021-12-28 09:40:48,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:48" (1/1) ... [2021-12-28 09:40:48,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:48" (1/1) ... [2021-12-28 09:40:48,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:48" (1/1) ... [2021-12-28 09:40:48,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 09:40:48,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 09:40:48,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 09:40:48,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 09:40:48,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:48" (1/1) ... [2021-12-28 09:40:48,336 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:40:48,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:40:48,353 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:40:48,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-28 09:40:48,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 09:40:48,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 09:40:48,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 09:40:48,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 09:40:48,440 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 09:40:48,441 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 09:40:48,864 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 09:40:48,868 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 09:40:48,868 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-28 09:40:48,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:40:48 BoogieIcfgContainer [2021-12-28 09:40:48,870 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 09:40:48,870 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-28 09:40:48,870 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-28 09:40:48,872 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-28 09:40:48,873 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:40:48,873 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.12 09:40:47" (1/3) ... [2021-12-28 09:40:48,873 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21bef025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:40:48, skipping insertion in model container [2021-12-28 09:40:48,873 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:40:48,873 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:48" (2/3) ... [2021-12-28 09:40:48,873 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21bef025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:40:48, skipping insertion in model container [2021-12-28 09:40:48,874 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:40:48,874 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:40:48" (3/3) ... [2021-12-28 09:40:48,874 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product43.cil.c [2021-12-28 09:40:48,961 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-28 09:40:48,961 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-28 09:40:48,962 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-28 09:40:48,962 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-28 09:40:48,962 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-28 09:40:48,962 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-28 09:40:48,962 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-28 09:40:48,962 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-28 09:40:48,979 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 127 states, 126 states have (on average 1.373015873015873) internal successors, (173), 126 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:40:48,994 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 82 [2021-12-28 09:40:48,994 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:48,994 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:48,998 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:48,998 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:48,999 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-28 09:40:49,005 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 127 states, 126 states have (on average 1.373015873015873) internal successors, (173), 126 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:40:49,010 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 82 [2021-12-28 09:40:49,010 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:49,011 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:49,011 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:49,011 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:49,015 INFO L791 eck$LassoCheckResult]: Stem: 114#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 41#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; 87#L588true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 127#L581true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 47#L596true 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; 56#L140true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 113#L113true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~1#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___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 89#L802-2true [2021-12-28 09:40:49,015 INFO L793 eck$LassoCheckResult]: Loop: 89#L802-2true assume !false; 25#L803true assume test_~splverifierCounter~0#1 < 4; 12#L804true test_~tmp~8#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 76#L812true assume !(0 != test_~tmp~8#1); 37#L812-2true test_~tmp___0~2#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 73#L822true assume !(0 != test_~tmp___0~2#1); 60#L822-2true test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 4#L832true assume 0 != test_~tmp___2~0#1; 107#L838-2true assume { :begin_inline_timeShift } true; 39#L614true assume !(0 != ~pumpRunning~0); 43#L614-2true assume !(0 != ~systemActive~0); 100#L621-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 17#L902-1true __utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 7#L175true assume 0 != __utac_acc__Specification3_spec__1_~tmp~1#1; 65#L181-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 70#L631true assume { :end_inline_timeShift } true; 89#L802-2true [2021-12-28 09:40:49,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:49,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-28 09:40:49,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:49,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141908198] [2021-12-28 09:40:49,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:49,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:49,092 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:49,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:49,123 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:49,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:49,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1131879530, now seen corresponding path program 1 times [2021-12-28 09:40:49,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:49,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123928047] [2021-12-28 09:40:49,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:49,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:49,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:49,131 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:49,136 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:49,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:49,137 INFO L85 PathProgramCache]: Analyzing trace with hash 223539546, now seen corresponding path program 1 times [2021-12-28 09:40:49,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:49,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401049894] [2021-12-28 09:40:49,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:49,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:49,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:40:49,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:40:49,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:40:49,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401049894] [2021-12-28 09:40:49,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401049894] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:40:49,252 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:40:49,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 09:40:49,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704920873] [2021-12-28 09:40:49,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:40:49,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:40:49,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 09:40:49,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 09:40:49,398 INFO L87 Difference]: Start difference. First operand has 127 states, 126 states have (on average 1.373015873015873) internal successors, (173), 126 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:40:49,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:40:49,510 INFO L93 Difference]: Finished difference Result 311 states and 404 transitions. [2021-12-28 09:40:49,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 09:40:49,514 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 311 states and 404 transitions. [2021-12-28 09:40:49,520 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 199 [2021-12-28 09:40:49,530 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 311 states to 281 states and 374 transitions. [2021-12-28 09:40:49,532 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 281 [2021-12-28 09:40:49,533 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 281 [2021-12-28 09:40:49,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 281 states and 374 transitions. [2021-12-28 09:40:49,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:40:49,538 INFO L681 BuchiCegarLoop]: Abstraction has 281 states and 374 transitions. [2021-12-28 09:40:49,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states and 374 transitions. [2021-12-28 09:40:49,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 172. [2021-12-28 09:40:49,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 172 states have (on average 1.3313953488372092) internal successors, (229), 171 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:40:49,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 229 transitions. [2021-12-28 09:40:49,584 INFO L704 BuchiCegarLoop]: Abstraction has 172 states and 229 transitions. [2021-12-28 09:40:49,584 INFO L587 BuchiCegarLoop]: Abstraction has 172 states and 229 transitions. [2021-12-28 09:40:49,584 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-28 09:40:49,585 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 172 states and 229 transitions. [2021-12-28 09:40:49,591 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 122 [2021-12-28 09:40:49,591 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:49,592 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:49,592 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:49,594 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:49,594 INFO L791 eck$LassoCheckResult]: Stem: 566#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 519#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; 520#L588 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 558#L581 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 529#L596 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; 530#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 537#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~1#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___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 546#L802-2 [2021-12-28 09:40:49,594 INFO L793 eck$LassoCheckResult]: Loop: 546#L802-2 assume !false; 494#L803 assume test_~splverifierCounter~0#1 < 4; 475#L804 test_~tmp~8#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 476#L812 assume !(0 != test_~tmp~8#1); 513#L812-2 test_~tmp___0~2#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 514#L822 assume !(0 != test_~tmp___0~2#1); 496#L822-2 test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 456#L832 assume 0 != test_~tmp___2~0#1; 458#L838-2 assume { :begin_inline_timeShift } true; 516#L614 assume !(0 != ~pumpRunning~0); 505#L614-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 523#L646 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 533#L638-1 assume { :end_inline_processEnvironment__wrappee__base } true; 499#L646-1 assume { :end_inline_processEnvironment } true; 500#L621-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 481#L902-1 __utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 464#L175 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1#1; 465#L181-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 544#L631 assume { :end_inline_timeShift } true; 546#L802-2 [2021-12-28 09:40:49,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:49,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-28 09:40:49,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:49,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196080688] [2021-12-28 09:40:49,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:49,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:49,609 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:49,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:49,643 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:49,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:49,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1955398496, now seen corresponding path program 1 times [2021-12-28 09:40:49,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:49,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792976881] [2021-12-28 09:40:49,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:49,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:49,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:40:49,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:40:49,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:40:49,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792976881] [2021-12-28 09:40:49,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792976881] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:40:49,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:40:49,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 09:40:49,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735565302] [2021-12-28 09:40:49,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:40:49,668 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-28 09:40:49,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:40:49,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 09:40:49,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 09:40:49,669 INFO L87 Difference]: Start difference. First operand 172 states and 229 transitions. cyclomatic complexity: 60 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) [2021-12-28 09:40:49,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:40:49,717 INFO L93 Difference]: Finished difference Result 228 states and 292 transitions. [2021-12-28 09:40:49,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 09:40:49,718 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 228 states and 292 transitions. [2021-12-28 09:40:49,721 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 165 [2021-12-28 09:40:49,724 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 228 states to 228 states and 292 transitions. [2021-12-28 09:40:49,724 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 228 [2021-12-28 09:40:49,724 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 228 [2021-12-28 09:40:49,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 228 states and 292 transitions. [2021-12-28 09:40:49,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:40:49,727 INFO L681 BuchiCegarLoop]: Abstraction has 228 states and 292 transitions. [2021-12-28 09:40:49,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states and 292 transitions. [2021-12-28 09:40:49,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2021-12-28 09:40:49,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 228 states have (on average 1.280701754385965) internal successors, (292), 227 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:40:49,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 292 transitions. [2021-12-28 09:40:49,744 INFO L704 BuchiCegarLoop]: Abstraction has 228 states and 292 transitions. [2021-12-28 09:40:49,744 INFO L587 BuchiCegarLoop]: Abstraction has 228 states and 292 transitions. [2021-12-28 09:40:49,744 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-28 09:40:49,744 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 228 states and 292 transitions. [2021-12-28 09:40:49,745 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 165 [2021-12-28 09:40:49,745 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:49,745 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:49,746 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:49,746 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:49,746 INFO L791 eck$LassoCheckResult]: Stem: 987#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 923#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; 924#L588 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 972#L581 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 933#L596 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; 934#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 945#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~1#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___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 957#L802-2 [2021-12-28 09:40:49,747 INFO L793 eck$LassoCheckResult]: Loop: 957#L802-2 assume !false; 899#L803 assume test_~splverifierCounter~0#1 < 4; 880#L804 test_~tmp~8#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 881#L812 assume !(0 != test_~tmp~8#1); 917#L812-2 test_~tmp___0~2#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 918#L822 assume !(0 != test_~tmp___0~2#1); 901#L822-2 test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 862#L832 assume 0 != test_~tmp___2~0#1; 864#L838-2 assume { :begin_inline_timeShift } true; 920#L614 assume !(0 != ~pumpRunning~0); 921#L614-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 927#L646 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~8#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~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 969#L942 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 942#L947 isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; 874#L766 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 875#L766-2 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 872#L772 processEnvironment_#t~ret32#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret32#1;havoc processEnvironment_#t~ret32#1; 873#L650 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 978#L638 assume { :end_inline_processEnvironment__wrappee__base } true; 904#L646-1 assume { :end_inline_processEnvironment } true; 905#L621-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 886#L902-1 __utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 867#L175 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1#1; 868#L181-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 954#L631 assume { :end_inline_timeShift } true; 957#L802-2 [2021-12-28 09:40:49,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:49,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-28 09:40:49,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:49,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821065059] [2021-12-28 09:40:49,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:49,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:49,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:49,756 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:49,766 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:49,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:49,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1963918840, now seen corresponding path program 1 times [2021-12-28 09:40:49,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:49,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457871648] [2021-12-28 09:40:49,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:49,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:49,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:49,772 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:49,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:49,778 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:49,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:49,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1080043716, now seen corresponding path program 1 times [2021-12-28 09:40:49,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:49,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929519534] [2021-12-28 09:40:49,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:49,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:49,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:40:49,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:40:49,844 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:40:49,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929519534] [2021-12-28 09:40:49,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929519534] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:40:49,844 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:40:49,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 09:40:49,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572673488] [2021-12-28 09:40:49,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:40:50,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:40:50,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 09:40:50,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 09:40:50,036 INFO L87 Difference]: Start difference. First operand 228 states and 292 transitions. cyclomatic complexity: 67 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:40:50,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:40:50,122 INFO L93 Difference]: Finished difference Result 784 states and 997 transitions. [2021-12-28 09:40:50,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 09:40:50,124 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 784 states and 997 transitions. [2021-12-28 09:40:50,129 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 595 [2021-12-28 09:40:50,132 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 784 states to 784 states and 997 transitions. [2021-12-28 09:40:50,132 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 784 [2021-12-28 09:40:50,133 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 784 [2021-12-28 09:40:50,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 784 states and 997 transitions. [2021-12-28 09:40:50,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:40:50,134 INFO L681 BuchiCegarLoop]: Abstraction has 784 states and 997 transitions. [2021-12-28 09:40:50,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states and 997 transitions. [2021-12-28 09:40:50,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 449. [2021-12-28 09:40:50,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 449 states have (on average 1.2583518930957684) internal successors, (565), 448 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:40:50,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 565 transitions. [2021-12-28 09:40:50,149 INFO L704 BuchiCegarLoop]: Abstraction has 449 states and 565 transitions. [2021-12-28 09:40:50,149 INFO L587 BuchiCegarLoop]: Abstraction has 449 states and 565 transitions. [2021-12-28 09:40:50,149 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-28 09:40:50,149 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 449 states and 565 transitions. [2021-12-28 09:40:50,151 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 330 [2021-12-28 09:40:50,151 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:50,151 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:50,151 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:50,152 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:50,152 INFO L791 eck$LassoCheckResult]: Stem: 2043#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1957#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; 1958#L588 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2015#L581 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1967#L596 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; 1968#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1979#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~1#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___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2042#L802-2 [2021-12-28 09:40:50,152 INFO L793 eck$LassoCheckResult]: Loop: 2042#L802-2 assume !false; 2271#L803 assume test_~splverifierCounter~0#1 < 4; 1910#L804 test_~tmp~8#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 1911#L812 assume !(0 != test_~tmp~8#1); 1951#L812-2 test_~tmp___0~2#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 1952#L822 assume !(0 != test_~tmp___0~2#1); 2322#L822-2 test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 2321#L832 assume 0 != test_~tmp___2~0#1; 2319#L838-2 assume { :begin_inline_timeShift } true; 2315#L614 assume !(0 != ~pumpRunning~0); 2247#L614-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 2282#L646 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~8#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~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 2215#L942 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 2285#L947 isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; 2130#L766 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2126#L766-2 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 2124#L772 processEnvironment_#t~ret32#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret32#1;havoc processEnvironment_#t~ret32#1; 2122#L650 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2033#L638 assume { :end_inline_processEnvironment__wrappee__base } true; 2034#L646-1 assume { :end_inline_processEnvironment } true; 2280#L621-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 2279#L902-1 __utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 2278#L175 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~1#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 2277#L934 __utac_acc__Specification3_spec__1_#t~ret6#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret6#1;havoc __utac_acc__Specification3_spec__1_#t~ret6#1; 2274#L181 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 2273#L181-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2272#L631 assume { :end_inline_timeShift } true; 2042#L802-2 [2021-12-28 09:40:50,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:50,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2021-12-28 09:40:50,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:50,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236486951] [2021-12-28 09:40:50,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:50,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:50,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:50,164 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:50,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:50,170 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:50,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:50,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1834110085, now seen corresponding path program 1 times [2021-12-28 09:40:50,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:50,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99080137] [2021-12-28 09:40:50,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:50,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:50,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:50,175 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:50,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:50,183 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:50,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:50,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1458822345, now seen corresponding path program 1 times [2021-12-28 09:40:50,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:50,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199087692] [2021-12-28 09:40:50,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:50,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:50,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:50,191 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:50,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:50,204 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:52,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.12 09:40:52 BoogieIcfgContainer [2021-12-28 09:40:52,443 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-28 09:40:52,444 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 09:40:52,444 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 09:40:52,444 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 09:40:52,445 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:40:48" (3/4) ... [2021-12-28 09:40:52,447 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-28 09:40:52,494 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-28 09:40:52,495 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 09:40:52,495 INFO L158 Benchmark]: Toolchain (without parser) took 4574.11ms. Allocated memory was 54.5MB in the beginning and 98.6MB in the end (delta: 44.0MB). Free memory was 32.7MB in the beginning and 40.9MB in the end (delta: -8.2MB). Peak memory consumption was 36.3MB. Max. memory is 16.1GB. [2021-12-28 09:40:52,496 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 54.5MB. Free memory was 37.1MB in the beginning and 37.0MB in the end (delta: 52.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:40:52,496 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.17ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 32.5MB in the beginning and 43.6MB in the end (delta: -11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-28 09:40:52,496 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.73ms. Allocated memory is still 67.1MB. Free memory was 43.4MB in the beginning and 40.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-28 09:40:52,497 INFO L158 Benchmark]: Boogie Preprocessor took 22.67ms. Allocated memory is still 67.1MB. Free memory was 40.5MB in the beginning and 38.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:40:52,497 INFO L158 Benchmark]: RCFGBuilder took 538.68ms. Allocated memory is still 67.1MB. Free memory was 38.4MB in the beginning and 36.9MB in the end (delta: 1.5MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2021-12-28 09:40:52,497 INFO L158 Benchmark]: BuchiAutomizer took 3572.82ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 36.6MB in the beginning and 44.0MB in the end (delta: -7.4MB). Peak memory consumption was 45.1MB. Max. memory is 16.1GB. [2021-12-28 09:40:52,497 INFO L158 Benchmark]: Witness Printer took 50.82ms. Allocated memory is still 98.6MB. Free memory was 44.0MB in the beginning and 40.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-28 09:40:52,499 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 54.5MB. Free memory was 37.1MB in the beginning and 37.0MB in the end (delta: 52.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 346.17ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 32.5MB in the beginning and 43.6MB in the end (delta: -11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.73ms. Allocated memory is still 67.1MB. Free memory was 43.4MB in the beginning and 40.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.67ms. Allocated memory is still 67.1MB. Free memory was 40.5MB in the beginning and 38.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 538.68ms. Allocated memory is still 67.1MB. Free memory was 38.4MB in the beginning and 36.9MB in the end (delta: 1.5MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 3572.82ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 36.6MB in the beginning and 44.0MB in the end (delta: -7.4MB). Peak memory consumption was 45.1MB. Max. memory is 16.1GB. * Witness Printer took 50.82ms. Allocated memory is still 98.6MB. Free memory was 44.0MB in the beginning and 40.9MB in the end (delta: 3.1MB). 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 6 locations. The remainder module has 449 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.0s. 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, 444 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 449 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1419 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1419 mSDsluCounter, 2025 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1492 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 143 IncrementalHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 533 mSDtfsCounter, 143 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 802]: 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, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3da271a8=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, tmp___0=0, NULL=1, methaneLevelCritical=0, tmp___0=1, retValue_acc=0, retValue_acc=1, \result=0, retValue_acc=1, retValue_acc=1, tmp=0, \result=1, tmp=1, \result=1, tmp___1=0, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f19f12a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2196ac3c=0, cleanupTimeShifts=4, tmp=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a6d38a9=0, tmp=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b07c9b3=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2532aac=0, tmp___1=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15607f38=0, waterLevel=1, systemActive=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1df46624=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a16cbed=29, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b409d4d=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 802]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L369] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L607] int pumpRunning = 0; [L608] int systemActive = 1; [L859] int waterLevel = 1; [L860] int methaneLevelCritical = 0; [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L592] int retValue_acc ; [L595] retValue_acc = 1 [L596] return (retValue_acc); [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L793] int splverifierCounter ; [L794] int tmp ; [L795] int tmp___0 ; [L796] int tmp___1 ; [L797] int tmp___2 ; [L800] splverifierCounter = 0 Loop: [L802] COND TRUE 1 [L804] COND TRUE splverifierCounter < 4 [L810] tmp = __VERIFIER_nondet_int() [L812] COND FALSE !(\read(tmp)) [L820] tmp___0 = __VERIFIER_nondet_int() [L822] COND FALSE !(\read(tmp___0)) [L830] tmp___2 = __VERIFIER_nondet_int() [L832] COND TRUE \read(tmp___2) [L847] CALL timeShift() [L614] COND FALSE !(\read(pumpRunning)) [L621] COND TRUE \read(systemActive) [L623] CALL processEnvironment() [L643] int tmp ; [L646] COND TRUE ! pumpRunning [L648] CALL, EXPR isHighWaterLevel() [L758] int retValue_acc ; [L759] int tmp ; [L760] int tmp___0 ; [L764] CALL, EXPR isHighWaterSensorDry() [L939] int retValue_acc ; [L942] COND TRUE waterLevel < 2 [L943] retValue_acc = 1 [L944] return (retValue_acc); [L764] RET, EXPR isHighWaterSensorDry() [L764] tmp = isHighWaterSensorDry() [L766] COND TRUE \read(tmp) [L767] tmp___0 = 0 [L771] retValue_acc = tmp___0 [L772] return (retValue_acc); [L648] RET, EXPR isHighWaterLevel() [L648] tmp = isHighWaterLevel() [L650] COND FALSE !(\read(tmp)) [L656] FCALL processEnvironment__wrappee__base() [L623] RET processEnvironment() [L629] CALL __utac_acc__Specification3_spec__1() [L167] int tmp ; [L168] int tmp___0 ; [L169] int tmp___1 ; [L173] CALL, EXPR isMethaneLevelCritical() [L898] int retValue_acc ; [L901] retValue_acc = methaneLevelCritical [L902] return (retValue_acc); [L173] RET, EXPR isMethaneLevelCritical() [L173] tmp = isMethaneLevelCritical() [L175] COND FALSE !(\read(tmp)) [L179] CALL, EXPR getWaterLevel() [L930] int retValue_acc ; [L933] retValue_acc = waterLevel [L934] return (retValue_acc); [L179] RET, EXPR getWaterLevel() [L179] tmp___0 = getWaterLevel() [L181] COND FALSE !(tmp___0 == 2) [L629] RET __utac_acc__Specification3_spec__1() [L847] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-28 09:40:52,549 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)