./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product23.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product23.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 3fa2925374831266c365e02bbdeeca981bf102eec792ab5e5349fa193f0e7273 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:30,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:30,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:30,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:30,739 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:30,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:30,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:30,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:30,750 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:30,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:30,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:30,756 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:30,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:30,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:30,759 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:30,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:30,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:30,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:30,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:30,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:30,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:30,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:30,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:30,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:30,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:30,781 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:30,781 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:30,782 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:30,783 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:30,783 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:30,784 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:30,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:30,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:30,786 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:30,787 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:30,787 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:30,788 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:30,788 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:30,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:30,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:30,789 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:30,793 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:30,819 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:30,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:30,819 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:30,820 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:30,821 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:30,821 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:30,821 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:30,821 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:30,821 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:30,821 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:30,822 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:30,822 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:30,822 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:30,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:30,823 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:30,823 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:30,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:30,823 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:30,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:30,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:30,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:30,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:30,824 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:30,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:30,824 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:30,824 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:30,824 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:30,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:30,825 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:30,825 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:30,825 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:30,826 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:30,826 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fa2925374831266c365e02bbdeeca981bf102eec792ab5e5349fa193f0e7273 [2022-02-21 04:18:31,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:31,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:31,028 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:31,028 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:31,029 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:31,030 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product23.cil.c [2022-02-21 04:18:31,083 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0f08bc6c/0694e032f3114481b5fda76448c54180/FLAG5362c6889 [2022-02-21 04:18:31,482 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:31,482 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product23.cil.c [2022-02-21 04:18:31,492 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0f08bc6c/0694e032f3114481b5fda76448c54180/FLAG5362c6889 [2022-02-21 04:18:31,501 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0f08bc6c/0694e032f3114481b5fda76448c54180 [2022-02-21 04:18:31,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:31,504 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:31,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:31,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:31,511 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:31,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47b7b338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31, skipping insertion in model container [2022-02-21 04:18:31,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:31,555 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:31,751 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product23.cil.c[11292,11305] [2022-02-21 04:18:31,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:31,809 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:31,855 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product23.cil.c[11292,11305] [2022-02-21 04:18:31,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:31,894 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:31,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31 WrapperNode [2022-02-21 04:18:31,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:31,897 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:31,897 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:31,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:31,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,988 INFO L137 Inliner]: procedures = 56, calls = 158, calls flagged for inlining = 55, calls inlined = 86, statements flattened = 604 [2022-02-21 04:18:31,989 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:31,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:31,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:31,990 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:32,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:32,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:32,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:32,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:32,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:32,033 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:32,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:32,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:32,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:32,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:32,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:32,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:32,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:32,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:32,081 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:18:32,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:18:32,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:32,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:32,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:32,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:32,197 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:32,198 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:32,623 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:32,630 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:32,631 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:32,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:32 BoogieIcfgContainer [2022-02-21 04:18:32,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:32,633 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:32,634 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:32,637 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:32,637 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:32,637 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:31" (1/3) ... [2022-02-21 04:18:32,638 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d39fc2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:32, skipping insertion in model container [2022-02-21 04:18:32,638 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:32,638 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (2/3) ... [2022-02-21 04:18:32,639 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d39fc2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:32, skipping insertion in model container [2022-02-21 04:18:32,639 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:32,639 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:32" (3/3) ... [2022-02-21 04:18:32,640 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product23.cil.c [2022-02-21 04:18:32,685 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:32,685 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:32,685 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:32,685 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:32,686 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:32,686 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:32,686 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:32,686 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:32,715 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 164 states, 163 states have (on average 1.343558282208589) internal successors, (219), 163 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:32,769 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2022-02-21 04:18:32,769 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:32,769 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:32,773 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:32,773 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:32,773 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:32,775 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 164 states, 163 states have (on average 1.343558282208589) internal successors, (219), 163 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:32,793 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2022-02-21 04:18:32,793 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:32,793 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:32,794 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:32,794 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:32,797 INFO L791 eck$LassoCheckResult]: Stem: 153#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 55#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~6#1, main_~tmp~3#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 151#L916true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 80#L909true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 113#L924true main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 62#L611true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 159#L582true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 93#L935true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 158#L837-2true [2022-02-21 04:18:32,799 INFO L793 eck$LassoCheckResult]: Loop: 158#L837-2true assume !false; 47#L838true assume test_~splverifierCounter~0#1 < 4; 45#L839true test_~tmp~7#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 143#L847true assume !(0 != test_~tmp~7#1); 85#L847-2true test_~tmp___0~1#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 135#L857true assume !(0 != test_~tmp___0~1#1); 102#L857-2true test_~tmp___2~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 145#L867true assume 0 != test_~tmp___2~0#1; 161#L873-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;havoc isPumpRunning_~retValue_acc~8#1;isPumpRunning_~retValue_acc~8#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; 95#L752true __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 134#L945true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 57#L641true assume !(0 != ~pumpRunning~0); 141#L641-2true assume !(0 != ~systemActive~0); 121#L648-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 28#L507true __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 88#L956true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1); 53#L956-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 35#L658true assume { :end_inline_timeShift } true; 158#L837-2true [2022-02-21 04:18:32,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:32,806 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:18:32,814 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:32,814 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107063666] [2022-02-21 04:18:32,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:32,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:32,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:32,947 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:32,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:33,013 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:33,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:33,016 INFO L85 PathProgramCache]: Analyzing trace with hash 353148780, now seen corresponding path program 1 times [2022-02-21 04:18:33,016 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:33,017 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505150169] [2022-02-21 04:18:33,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:33,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:33,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:33,040 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:33,051 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:33,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:33,054 INFO L85 PathProgramCache]: Analyzing trace with hash -986203627, now seen corresponding path program 1 times [2022-02-21 04:18:33,055 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:33,055 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071049855] [2022-02-21 04:18:33,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:33,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:33,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:33,225 INFO L290 TraceCheckUtils]: 0: Hoare triple {172#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; {174#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:33,226 INFO L290 TraceCheckUtils]: 1: Hoare triple {174#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~6#1, main_~tmp~3#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; {174#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:33,227 INFO L290 TraceCheckUtils]: 2: Hoare triple {174#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {174#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:33,228 INFO L290 TraceCheckUtils]: 3: Hoare triple {174#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; {175#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:18:33,228 INFO L290 TraceCheckUtils]: 4: Hoare triple {175#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; {176#(= |ULTIMATE.start_main_~tmp~3#1| ~systemActive~0)} is VALID [2022-02-21 04:18:33,229 INFO L290 TraceCheckUtils]: 5: Hoare triple {176#(= |ULTIMATE.start_main_~tmp~3#1| ~systemActive~0)} assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,229 INFO L290 TraceCheckUtils]: 6: Hoare triple {177#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,230 INFO L290 TraceCheckUtils]: 7: Hoare triple {177#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,231 INFO L290 TraceCheckUtils]: 8: Hoare triple {177#(not (= 0 ~systemActive~0))} assume !false; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,232 INFO L290 TraceCheckUtils]: 9: Hoare triple {177#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,233 INFO L290 TraceCheckUtils]: 10: Hoare triple {177#(not (= 0 ~systemActive~0))} test_~tmp~7#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,234 INFO L290 TraceCheckUtils]: 11: Hoare triple {177#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~7#1); {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,234 INFO L290 TraceCheckUtils]: 12: Hoare triple {177#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,236 INFO L290 TraceCheckUtils]: 13: Hoare triple {177#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,238 INFO L290 TraceCheckUtils]: 14: Hoare triple {177#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,238 INFO L290 TraceCheckUtils]: 15: Hoare triple {177#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,239 INFO L290 TraceCheckUtils]: 16: Hoare triple {177#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;havoc isPumpRunning_~retValue_acc~8#1;isPumpRunning_~retValue_acc~8#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,239 INFO L290 TraceCheckUtils]: 17: Hoare triple {177#(not (= 0 ~systemActive~0))} __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,252 INFO L290 TraceCheckUtils]: 18: Hoare triple {177#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,252 INFO L290 TraceCheckUtils]: 19: Hoare triple {177#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:33,253 INFO L290 TraceCheckUtils]: 20: Hoare triple {177#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {173#false} is VALID [2022-02-21 04:18:33,254 INFO L290 TraceCheckUtils]: 21: Hoare triple {173#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; {173#false} is VALID [2022-02-21 04:18:33,255 INFO L290 TraceCheckUtils]: 22: Hoare triple {173#false} __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; {173#false} is VALID [2022-02-21 04:18:33,255 INFO L290 TraceCheckUtils]: 23: Hoare triple {173#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1); {173#false} is VALID [2022-02-21 04:18:33,255 INFO L290 TraceCheckUtils]: 24: Hoare triple {173#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {173#false} is VALID [2022-02-21 04:18:33,255 INFO L290 TraceCheckUtils]: 25: Hoare triple {173#false} assume { :end_inline_timeShift } true; {173#false} is VALID [2022-02-21 04:18:33,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:33,257 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:33,258 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071049855] [2022-02-21 04:18:33,258 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071049855] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:33,258 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:33,259 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:33,259 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172464519] [2022-02-21 04:18:33,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:33,414 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:33,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:18:33,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:18:33,439 INFO L87 Difference]: Start difference. First operand has 164 states, 163 states have (on average 1.343558282208589) internal successors, (219), 163 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:34,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:34,202 INFO L93 Difference]: Finished difference Result 387 states and 498 transitions. [2022-02-21 04:18:34,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:34,204 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:34,236 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:34,242 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 387 states and 498 transitions. [2022-02-21 04:18:34,258 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 249 [2022-02-21 04:18:34,270 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 387 states to 357 states and 468 transitions. [2022-02-21 04:18:34,271 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 357 [2022-02-21 04:18:34,272 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 357 [2022-02-21 04:18:34,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 357 states and 468 transitions. [2022-02-21 04:18:34,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:34,274 INFO L681 BuchiCegarLoop]: Abstraction has 357 states and 468 transitions. [2022-02-21 04:18:34,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states and 468 transitions. [2022-02-21 04:18:34,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 212. [2022-02-21 04:18:34,298 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:34,299 INFO L82 GeneralOperation]: Start isEquivalent. First operand 357 states and 468 transitions. Second operand has 212 states, 212 states have (on average 1.3113207547169812) internal successors, (278), 211 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:34,302 INFO L74 IsIncluded]: Start isIncluded. First operand 357 states and 468 transitions. Second operand has 212 states, 212 states have (on average 1.3113207547169812) internal successors, (278), 211 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:34,303 INFO L87 Difference]: Start difference. First operand 357 states and 468 transitions. Second operand has 212 states, 212 states have (on average 1.3113207547169812) internal successors, (278), 211 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:34,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:34,321 INFO L93 Difference]: Finished difference Result 357 states and 468 transitions. [2022-02-21 04:18:34,322 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 468 transitions. [2022-02-21 04:18:34,324 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:34,324 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:34,325 INFO L74 IsIncluded]: Start isIncluded. First operand has 212 states, 212 states have (on average 1.3113207547169812) internal successors, (278), 211 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 357 states and 468 transitions. [2022-02-21 04:18:34,325 INFO L87 Difference]: Start difference. First operand has 212 states, 212 states have (on average 1.3113207547169812) internal successors, (278), 211 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 357 states and 468 transitions. [2022-02-21 04:18:34,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:34,342 INFO L93 Difference]: Finished difference Result 357 states and 468 transitions. [2022-02-21 04:18:34,342 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 468 transitions. [2022-02-21 04:18:34,343 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:34,343 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:34,343 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:34,343 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:34,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 212 states have (on average 1.3113207547169812) internal successors, (278), 211 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:34,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 278 transitions. [2022-02-21 04:18:34,349 INFO L704 BuchiCegarLoop]: Abstraction has 212 states and 278 transitions. [2022-02-21 04:18:34,349 INFO L587 BuchiCegarLoop]: Abstraction has 212 states and 278 transitions. [2022-02-21 04:18:34,349 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:34,349 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 212 states and 278 transitions. [2022-02-21 04:18:34,351 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 148 [2022-02-21 04:18:34,351 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:34,351 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:34,351 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:34,351 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] [2022-02-21 04:18:34,352 INFO L791 eck$LassoCheckResult]: Stem: 719#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 649#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~6#1, main_~tmp~3#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 650#L916 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 678#L909 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 679#L924 main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 663#L611 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 664#L582 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 687#L935 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 625#L837-2 [2022-02-21 04:18:34,352 INFO L793 eck$LassoCheckResult]: Loop: 625#L837-2 assume !false; 643#L838 assume test_~splverifierCounter~0#1 < 4; 641#L839 test_~tmp~7#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 642#L847 assume !(0 != test_~tmp~7#1); 611#L847-2 test_~tmp___0~1#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 682#L857 assume !(0 != test_~tmp___0~1#1); 599#L857-2 test_~tmp___2~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 692#L867 assume 0 != test_~tmp___2~0#1; 652#L873-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;havoc isPumpRunning_~retValue_acc~8#1;isPumpRunning_~retValue_acc~8#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; 688#L752 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 689#L945 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 654#L641 assume !(0 != ~pumpRunning~0); 655#L641-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret34#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 659#L699 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret33#1, processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4#1; 635#L673-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 600#L665-3 assume { :end_inline_processEnvironment__wrappee__base } true; 601#L673-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 572#L699-1 assume { :end_inline_processEnvironment } true; 710#L648-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 614#L507 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 615#L956 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1); 576#L956-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 624#L658 assume { :end_inline_timeShift } true; 625#L837-2 [2022-02-21 04:18:34,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:34,353 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:18:34,353 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:34,353 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704995518] [2022-02-21 04:18:34,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:34,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:34,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:34,362 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:34,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:34,372 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:34,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:34,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1698675059, now seen corresponding path program 1 times [2022-02-21 04:18:34,373 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:34,373 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668158575] [2022-02-21 04:18:34,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:34,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:34,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:34,377 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:34,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:34,381 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:34,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:34,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1772625814, now seen corresponding path program 1 times [2022-02-21 04:18:34,382 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:34,382 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21225272] [2022-02-21 04:18:34,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:34,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:34,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:34,425 INFO L290 TraceCheckUtils]: 0: Hoare triple {1502#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:34,426 INFO L290 TraceCheckUtils]: 1: Hoare triple {1504#(= ~waterLevel~0 1)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~6#1, main_~tmp~3#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:34,426 INFO L290 TraceCheckUtils]: 2: Hoare triple {1504#(= ~waterLevel~0 1)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:34,427 INFO L290 TraceCheckUtils]: 3: Hoare triple {1504#(= ~waterLevel~0 1)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:34,427 INFO L290 TraceCheckUtils]: 4: Hoare triple {1504#(= ~waterLevel~0 1)} main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:34,427 INFO L290 TraceCheckUtils]: 5: Hoare triple {1504#(= ~waterLevel~0 1)} assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:34,428 INFO L290 TraceCheckUtils]: 6: Hoare triple {1504#(= ~waterLevel~0 1)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:34,429 INFO L290 TraceCheckUtils]: 7: Hoare triple {1504#(= ~waterLevel~0 1)} assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:34,429 INFO L290 TraceCheckUtils]: 8: Hoare triple {1504#(= ~waterLevel~0 1)} assume !false; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:34,430 INFO L290 TraceCheckUtils]: 9: Hoare triple {1504#(= ~waterLevel~0 1)} assume test_~splverifierCounter~0#1 < 4; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:34,430 INFO L290 TraceCheckUtils]: 10: Hoare triple {1504#(= ~waterLevel~0 1)} test_~tmp~7#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:34,430 INFO L290 TraceCheckUtils]: 11: Hoare triple {1504#(= ~waterLevel~0 1)} assume !(0 != test_~tmp~7#1); {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:34,431 INFO L290 TraceCheckUtils]: 12: Hoare triple {1504#(= ~waterLevel~0 1)} test_~tmp___0~1#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:34,431 INFO L290 TraceCheckUtils]: 13: Hoare triple {1504#(= ~waterLevel~0 1)} assume !(0 != test_~tmp___0~1#1); {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:34,431 INFO L290 TraceCheckUtils]: 14: Hoare triple {1504#(= ~waterLevel~0 1)} test_~tmp___2~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:34,431 INFO L290 TraceCheckUtils]: 15: Hoare triple {1504#(= ~waterLevel~0 1)} assume 0 != test_~tmp___2~0#1; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:34,432 INFO L290 TraceCheckUtils]: 16: Hoare triple {1504#(= ~waterLevel~0 1)} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;havoc isPumpRunning_~retValue_acc~8#1;isPumpRunning_~retValue_acc~8#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:34,444 INFO L290 TraceCheckUtils]: 17: Hoare triple {1504#(= ~waterLevel~0 1)} __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:34,445 INFO L290 TraceCheckUtils]: 18: Hoare triple {1504#(= ~waterLevel~0 1)} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:34,445 INFO L290 TraceCheckUtils]: 19: Hoare triple {1504#(= ~waterLevel~0 1)} assume !(0 != ~pumpRunning~0); {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:34,446 INFO L290 TraceCheckUtils]: 20: Hoare triple {1504#(= ~waterLevel~0 1)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret34#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:34,446 INFO L290 TraceCheckUtils]: 21: Hoare triple {1504#(= ~waterLevel~0 1)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret33#1, processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4#1; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:34,446 INFO L290 TraceCheckUtils]: 22: Hoare triple {1504#(= ~waterLevel~0 1)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:34,450 INFO L290 TraceCheckUtils]: 23: Hoare triple {1504#(= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__base } true; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:34,450 INFO L290 TraceCheckUtils]: 24: Hoare triple {1504#(= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:34,451 INFO L290 TraceCheckUtils]: 25: Hoare triple {1504#(= ~waterLevel~0 1)} assume { :end_inline_processEnvironment } true; {1504#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:34,453 INFO L290 TraceCheckUtils]: 26: Hoare triple {1504#(= ~waterLevel~0 1)} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; {1505#(= |ULTIMATE.start_getWaterLevel_#res#1| 1)} is VALID [2022-02-21 04:18:34,453 INFO L290 TraceCheckUtils]: 27: Hoare triple {1505#(= |ULTIMATE.start_getWaterLevel_#res#1| 1)} __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; {1506#(= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~8#1| 1)} is VALID [2022-02-21 04:18:34,454 INFO L290 TraceCheckUtils]: 28: Hoare triple {1506#(= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~8#1| 1)} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1); {1503#false} is VALID [2022-02-21 04:18:34,454 INFO L290 TraceCheckUtils]: 29: Hoare triple {1503#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {1503#false} is VALID [2022-02-21 04:18:34,454 INFO L290 TraceCheckUtils]: 30: Hoare triple {1503#false} assume { :end_inline_timeShift } true; {1503#false} is VALID [2022-02-21 04:18:34,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:34,455 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:34,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21225272] [2022-02-21 04:18:34,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21225272] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:34,455 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:34,455 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:18:34,456 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904392416] [2022-02-21 04:18:34,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:34,560 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:34,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:34,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:34,561 INFO L87 Difference]: Start difference. First operand 212 states and 278 transitions. cyclomatic complexity: 69 Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:35,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:35,204 INFO L93 Difference]: Finished difference Result 623 states and 808 transitions. [2022-02-21 04:18:35,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:35,204 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:35,225 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:35,226 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 623 states and 808 transitions. [2022-02-21 04:18:35,257 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 284 [2022-02-21 04:18:35,272 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 623 states to 623 states and 808 transitions. [2022-02-21 04:18:35,273 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 623 [2022-02-21 04:18:35,273 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 623 [2022-02-21 04:18:35,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 623 states and 808 transitions. [2022-02-21 04:18:35,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:35,275 INFO L681 BuchiCegarLoop]: Abstraction has 623 states and 808 transitions. [2022-02-21 04:18:35,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states and 808 transitions. [2022-02-21 04:18:35,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 408. [2022-02-21 04:18:35,298 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:35,300 INFO L82 GeneralOperation]: Start isEquivalent. First operand 623 states and 808 transitions. Second operand has 408 states, 408 states have (on average 1.2892156862745099) internal successors, (526), 407 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:35,301 INFO L74 IsIncluded]: Start isIncluded. First operand 623 states and 808 transitions. Second operand has 408 states, 408 states have (on average 1.2892156862745099) internal successors, (526), 407 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:35,302 INFO L87 Difference]: Start difference. First operand 623 states and 808 transitions. Second operand has 408 states, 408 states have (on average 1.2892156862745099) internal successors, (526), 407 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:35,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:35,327 INFO L93 Difference]: Finished difference Result 623 states and 808 transitions. [2022-02-21 04:18:35,327 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 808 transitions. [2022-02-21 04:18:35,328 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:35,328 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:35,330 INFO L74 IsIncluded]: Start isIncluded. First operand has 408 states, 408 states have (on average 1.2892156862745099) internal successors, (526), 407 states have internal predecessors, (526), 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 623 states and 808 transitions. [2022-02-21 04:18:35,331 INFO L87 Difference]: Start difference. First operand has 408 states, 408 states have (on average 1.2892156862745099) internal successors, (526), 407 states have internal predecessors, (526), 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 623 states and 808 transitions. [2022-02-21 04:18:35,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:35,353 INFO L93 Difference]: Finished difference Result 623 states and 808 transitions. [2022-02-21 04:18:35,353 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 808 transitions. [2022-02-21 04:18:35,354 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:35,354 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:35,354 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:35,354 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:35,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 408 states have (on average 1.2892156862745099) internal successors, (526), 407 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:35,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 526 transitions. [2022-02-21 04:18:35,367 INFO L704 BuchiCegarLoop]: Abstraction has 408 states and 526 transitions. [2022-02-21 04:18:35,368 INFO L587 BuchiCegarLoop]: Abstraction has 408 states and 526 transitions. [2022-02-21 04:18:35,368 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:35,368 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 408 states and 526 transitions. [2022-02-21 04:18:35,370 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 284 [2022-02-21 04:18:35,370 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:35,370 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:35,371 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:35,371 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] [2022-02-21 04:18:35,371 INFO L791 eck$LassoCheckResult]: Stem: 2300#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 2220#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~6#1, main_~tmp~3#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 2221#L916 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2252#L909 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 2253#L924 main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 2234#L611 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 2235#L582 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2262#L935 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2192#L837-2 [2022-02-21 04:18:35,371 INFO L793 eck$LassoCheckResult]: Loop: 2192#L837-2 assume !false; 2210#L838 assume test_~splverifierCounter~0#1 < 4; 2211#L839 test_~tmp~7#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 2443#L847 assume !(0 != test_~tmp~7#1); 2444#L847-2 test_~tmp___0~1#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 2291#L857 assume !(0 != test_~tmp___0~1#1); 2163#L857-2 test_~tmp___2~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 2268#L867 assume 0 != test_~tmp___2~0#1; 2223#L873-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;havoc isPumpRunning_~retValue_acc~8#1;isPumpRunning_~retValue_acc~8#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; 2263#L752 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 2264#L945 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2225#L641 assume !(0 != ~pumpRunning~0); 2226#L641-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret34#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 2228#L699 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret33#1, processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4#1; 2202#L673-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 2167#L665-3 assume { :end_inline_processEnvironment__wrappee__base } true; 2168#L673-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 2139#L699-1 assume { :end_inline_processEnvironment } true; 2287#L648-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 2181#L507 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 2182#L956 assume 2 != __utac_acc__Specification5_spec__3_~tmp~8#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;havoc isPumpRunning_~retValue_acc~8#1;isPumpRunning_~retValue_acc~8#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; 2256#L752-1 __utac_acc__Specification5_spec__3_#t~ret52#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret52#1;havoc __utac_acc__Specification5_spec__3_#t~ret52#1; 2142#L960 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1); 2143#L956-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2191#L658 assume { :end_inline_timeShift } true; 2192#L837-2 [2022-02-21 04:18:35,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:35,372 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:18:35,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:35,373 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465486069] [2022-02-21 04:18:35,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:35,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:35,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:35,382 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:35,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:35,391 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:35,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:35,392 INFO L85 PathProgramCache]: Analyzing trace with hash 320062542, now seen corresponding path program 1 times [2022-02-21 04:18:35,392 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:35,392 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260639818] [2022-02-21 04:18:35,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:35,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:35,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:35,398 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:35,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:35,403 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:35,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:35,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1589512581, now seen corresponding path program 1 times [2022-02-21 04:18:35,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:35,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264005180] [2022-02-21 04:18:35,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:35,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:35,419 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:35,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:35,434 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:38,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:38 BoogieIcfgContainer [2022-02-21 04:18:38,214 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:38,215 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:38,215 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:38,215 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:38,215 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:32" (3/4) ... [2022-02-21 04:18:38,217 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:38,247 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:38,247 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:38,248 INFO L158 Benchmark]: Toolchain (without parser) took 6744.63ms. Allocated memory was 96.5MB in the beginning and 163.6MB in the end (delta: 67.1MB). Free memory was 69.3MB in the beginning and 119.6MB in the end (delta: -50.3MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2022-02-21 04:18:38,249 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 77.6MB. Free memory is still 49.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:38,249 INFO L158 Benchmark]: CACSL2BoogieTranslator took 387.64ms. Allocated memory is still 96.5MB. Free memory was 69.0MB in the beginning and 47.5MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-02-21 04:18:38,249 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.26ms. Allocated memory is still 96.5MB. Free memory was 47.5MB in the beginning and 43.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:38,250 INFO L158 Benchmark]: Boogie Preprocessor took 53.45ms. Allocated memory is still 96.5MB. Free memory was 43.3MB in the beginning and 40.6MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:38,250 INFO L158 Benchmark]: RCFGBuilder took 587.82ms. Allocated memory is still 96.5MB. Free memory was 40.6MB in the beginning and 63.2MB in the end (delta: -22.6MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2022-02-21 04:18:38,251 INFO L158 Benchmark]: BuchiAutomizer took 5580.63ms. Allocated memory was 96.5MB in the beginning and 163.6MB in the end (delta: 67.1MB). Free memory was 63.2MB in the beginning and 122.7MB in the end (delta: -59.5MB). Peak memory consumption was 85.6MB. Max. memory is 16.1GB. [2022-02-21 04:18:38,251 INFO L158 Benchmark]: Witness Printer took 32.74ms. Allocated memory is still 163.6MB. Free memory was 122.7MB in the beginning and 119.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:38,253 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 77.6MB. Free memory is still 49.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 387.64ms. Allocated memory is still 96.5MB. Free memory was 69.0MB in the beginning and 47.5MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.26ms. Allocated memory is still 96.5MB. Free memory was 47.5MB in the beginning and 43.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.45ms. Allocated memory is still 96.5MB. Free memory was 43.3MB in the beginning and 40.6MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 587.82ms. Allocated memory is still 96.5MB. Free memory was 40.6MB in the beginning and 63.2MB in the end (delta: -22.6MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 5580.63ms. Allocated memory was 96.5MB in the beginning and 163.6MB in the end (delta: 67.1MB). Free memory was 63.2MB in the beginning and 122.7MB in the end (delta: -59.5MB). Peak memory consumption was 85.6MB. Max. memory is 16.1GB. * Witness Printer took 32.74ms. Allocated memory is still 163.6MB. Free memory was 122.7MB in the beginning and 119.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 408 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.6s. Construction of modules took 0.1s. Büchi inclusion checks took 1.3s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 360 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 408 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1731 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1731 mSDsluCounter, 2018 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1516 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 133 IncrementalHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 502 mSDtfsCounter, 133 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 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: 837]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, retValue_acc=0, head=0, tmp___0=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@282656c2=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4994f32f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1587dcab=0, methaneLevelCritical=0, retValue_acc=1, tmp=1, \result=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a693915=0, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63201be3=0, \result=0, tmp=1, cleanupTimeShifts=4, switchedOnBeforeTS=0, \result=0, tmp___0=0, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, retValue_acc=1, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ab1fe83=0, tmp=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f1ec95e=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30e996e9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17b053fb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5bd5d56=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 837]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L432] int waterLevel = 1; [L433] int methaneLevelCritical = 0; [L521] int cleanupTimeShifts = 4; [L629] int pumpRunning = 0; [L630] int systemActive = 1; [L929] int switchedOnBeforeTS ; [L602] int retValue_acc ; [L603] int tmp ; [L607] FCALL select_helpers() [L608] FCALL select_features() [L609] CALL, EXPR valid_product() [L920] int retValue_acc ; [L923] retValue_acc = 1 [L924] return (retValue_acc); [L609] RET, EXPR valid_product() [L609] tmp = valid_product() [L611] COND TRUE \read(tmp) [L613] FCALL setup() [L614] CALL runTest() [L592] CALL __utac_acc__Specification5_spec__1() [L934] switchedOnBeforeTS = 0 [L592] RET __utac_acc__Specification5_spec__1() [L593] CALL test() [L828] int splverifierCounter ; [L829] int tmp ; [L830] int tmp___0 ; [L831] int tmp___1 ; [L832] int tmp___2 ; [L835] splverifierCounter = 0 Loop: [L837] COND TRUE 1 [L839] COND TRUE splverifierCounter < 4 [L845] tmp = __VERIFIER_nondet_int() [L847] COND FALSE !(\read(tmp)) [L855] tmp___0 = __VERIFIER_nondet_int() [L857] COND FALSE !(\read(tmp___0)) [L865] tmp___2 = __VERIFIER_nondet_int() [L867] COND TRUE \read(tmp___2) [L882] CALL timeShift() [L639] CALL __utac_acc__Specification5_spec__2() [L943] CALL, EXPR isPumpRunning() [L748] int retValue_acc ; [L751] retValue_acc = pumpRunning [L752] return (retValue_acc); [L943] RET, EXPR isPumpRunning() [L943] switchedOnBeforeTS = isPumpRunning() [L639] RET __utac_acc__Specification5_spec__2() [L641] COND FALSE !(\read(pumpRunning)) [L648] COND TRUE \read(systemActive) [L650] CALL processEnvironment() [L696] int tmp ; [L699] COND FALSE !(\read(pumpRunning)) [L714] CALL processEnvironment__wrappee__lowWaterSensor() [L670] int tmp ; [L673] COND FALSE !(\read(pumpRunning)) [L688] FCALL processEnvironment__wrappee__base() [L714] RET processEnvironment__wrappee__lowWaterSensor() [L650] RET processEnvironment() [L656] CALL __utac_acc__Specification5_spec__3() [L949] int tmp ; [L950] int tmp___0 ; [L954] CALL, EXPR getWaterLevel() [L503] int retValue_acc ; [L506] retValue_acc = waterLevel [L507] return (retValue_acc); [L954] RET, EXPR getWaterLevel() [L954] tmp = getWaterLevel() [L956] COND TRUE tmp != 2 [L958] CALL, EXPR isPumpRunning() [L748] int retValue_acc ; [L751] retValue_acc = pumpRunning [L752] return (retValue_acc); [L958] RET, EXPR isPumpRunning() [L958] tmp___0 = isPumpRunning() [L960] COND FALSE !(\read(tmp___0)) [L656] RET __utac_acc__Specification5_spec__3() [L882] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:38,307 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)