./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product63.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_spec1_product63.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 fd0b8ceecda33bdad48c402c2c8ba6fe539641c6d50bf604e9c60e70c71a562b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:15:44,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:15:44,717 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:15:44,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:15:44,783 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:15:44,787 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:15:44,789 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:15:44,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:15:44,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:15:44,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:15:44,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:15:44,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:15:44,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:15:44,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:15:44,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:15:44,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:15:44,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:15:44,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:15:44,816 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:15:44,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:15:44,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:15:44,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:15:44,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:15:44,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:15:44,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:15:44,830 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:15:44,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:15:44,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:15:44,833 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:15:44,833 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:15:44,834 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:15:44,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:15:44,836 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:15:44,837 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:15:44,838 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:15:44,838 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:15:44,838 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:15:44,839 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:15:44,839 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:15:44,840 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:15:44,840 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:15:44,841 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:15:44,873 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:15:44,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:15:44,874 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:15:44,874 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:15:44,875 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:15:44,875 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:15:44,875 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:15:44,875 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:15:44,875 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:15:44,875 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:15:44,876 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:15:44,876 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:15:44,877 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:15:44,877 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:15:44,877 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:15:44,877 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:15:44,877 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:15:44,877 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:15:44,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:15:44,878 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:15:44,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:15:44,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:15:44,878 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:15:44,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:15:44,878 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:15:44,878 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:15:44,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:15:44,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:15:44,879 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:15:44,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:15:44,879 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:15:44,880 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:15:44,880 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd0b8ceecda33bdad48c402c2c8ba6fe539641c6d50bf604e9c60e70c71a562b [2022-02-21 04:15:45,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:15:45,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:15:45,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:15:45,139 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:15:45,140 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:15:45,141 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c [2022-02-21 04:15:45,218 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/267b6158d/3ec4f5b890034ea1875cd335d096f71a/FLAG452824837 [2022-02-21 04:15:45,649 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:15:45,650 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c [2022-02-21 04:15:45,659 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/267b6158d/3ec4f5b890034ea1875cd335d096f71a/FLAG452824837 [2022-02-21 04:15:45,671 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/267b6158d/3ec4f5b890034ea1875cd335d096f71a [2022-02-21 04:15:45,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:15:45,674 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:15:45,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:45,676 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:15:45,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:15:45,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:45" (1/1) ... [2022-02-21 04:15:45,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8a12307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:45, skipping insertion in model container [2022-02-21 04:15:45,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:45" (1/1) ... [2022-02-21 04:15:45,685 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:15:45,719 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:15:45,906 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_spec1_product63.cil.c[6160,6173] [2022-02-21 04:15:46,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:46,012 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:15:46,058 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_spec1_product63.cil.c[6160,6173] [2022-02-21 04:15:46,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:46,097 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:15:46,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:46 WrapperNode [2022-02-21 04:15:46,105 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:46,106 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:46,106 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:15:46,106 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:15:46,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:46" (1/1) ... [2022-02-21 04:15:46,133 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:46" (1/1) ... [2022-02-21 04:15:46,191 INFO L137 Inliner]: procedures = 58, calls = 162, calls flagged for inlining = 59, calls inlined = 175, statements flattened = 1260 [2022-02-21 04:15:46,199 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:46,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:15:46,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:15:46,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:15:46,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:46" (1/1) ... [2022-02-21 04:15:46,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:46" (1/1) ... [2022-02-21 04:15:46,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:46" (1/1) ... [2022-02-21 04:15:46,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:46" (1/1) ... [2022-02-21 04:15:46,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:46" (1/1) ... [2022-02-21 04:15:46,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:46" (1/1) ... [2022-02-21 04:15:46,256 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:46" (1/1) ... [2022-02-21 04:15:46,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:15:46,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:15:46,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:15:46,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:15:46,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:46" (1/1) ... [2022-02-21 04:15:46,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:15:46,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:15:46,307 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 04:15:46,315 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 04:15:46,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:15:46,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:15:46,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:15:46,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:15:46,395 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:15:46,397 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:15:47,243 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:15:47,260 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:15:47,261 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:15:47,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:47 BoogieIcfgContainer [2022-02-21 04:15:47,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:15:47,265 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:15:47,265 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:15:47,269 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:15:47,269 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:47,270 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:15:45" (1/3) ... [2022-02-21 04:15:47,270 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4351d8af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:47, skipping insertion in model container [2022-02-21 04:15:47,271 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:47,271 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:46" (2/3) ... [2022-02-21 04:15:47,271 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4351d8af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:47, skipping insertion in model container [2022-02-21 04:15:47,271 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:47,271 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:47" (3/3) ... [2022-02-21 04:15:47,273 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product63.cil.c [2022-02-21 04:15:47,321 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:15:47,321 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:15:47,321 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:15:47,321 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:15:47,321 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:15:47,322 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:15:47,322 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:15:47,322 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:15:47,356 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 322 states, 321 states have (on average 1.35202492211838) internal successors, (434), 321 states have internal predecessors, (434), 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 04:15:47,447 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 212 [2022-02-21 04:15:47,447 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:47,447 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:47,452 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:47,452 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:47,452 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:15:47,454 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 322 states, 321 states have (on average 1.35202492211838) internal successors, (434), 321 states have internal predecessors, (434), 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 04:15:47,476 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 212 [2022-02-21 04:15:47,481 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:47,481 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:47,483 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:47,483 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:47,492 INFO L791 eck$LassoCheckResult]: Stem: 308#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 213#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~7#1, main_~tmp~10#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 163#L1013true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 164#L1006true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 267#L1021true main_#t~ret46#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 293#L847true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 153#L821true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 16#L330-2true [2022-02-21 04:15:47,493 INFO L793 eck$LassoCheckResult]: Loop: 16#L330-2true assume !false; 178#L331true assume test_~splverifierCounter~0#1 < 4; 196#L332true test_~tmp~6#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 290#L340true assume !(0 != test_~tmp~6#1); 105#L340-2true test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 127#L350true assume !(0 != test_~tmp___0~2#1); 295#L350-2true test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 23#L360true assume 0 != test_~tmp___2~0#1; 117#L366-2true assume { :begin_inline_timeShift } true; 19#L69true assume !(0 != ~pumpRunning~0); 288#L69-2true assume !(0 != ~systemActive~0); 305#L76-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~11#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 139#L931-5true __utac_acc__Specification1_spec__1_#t~ret47#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~11#1 := __utac_acc__Specification1_spec__1_#t~ret47#1;havoc __utac_acc__Specification1_spec__1_#t~ret47#1; 61#L869true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11#1); 152#L869-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 170#L86true assume { :end_inline_timeShift } true; 16#L330-2true [2022-02-21 04:15:47,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:47,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:15:47,504 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:47,505 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768966426] [2022-02-21 04:15:47,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:47,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:47,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:47,613 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:47,681 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:47,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:47,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1022359812, now seen corresponding path program 1 times [2022-02-21 04:15:47,685 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:47,686 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653960209] [2022-02-21 04:15:47,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:47,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:47,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:47,694 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:47,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:47,700 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:47,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:47,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1917188408, now seen corresponding path program 1 times [2022-02-21 04:15:47,703 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:47,703 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929337529] [2022-02-21 04:15:47,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:47,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:47,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:47,839 INFO L290 TraceCheckUtils]: 0: Hoare triple {330#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(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {332#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:47,840 INFO L290 TraceCheckUtils]: 1: Hoare triple {332#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~7#1, main_~tmp~10#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; {332#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:47,840 INFO L290 TraceCheckUtils]: 2: Hoare triple {332#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {332#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:47,841 INFO L290 TraceCheckUtils]: 3: Hoare triple {332#(= 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~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; {333#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:15:47,841 INFO L290 TraceCheckUtils]: 4: Hoare triple {333#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret46#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret46#1;havoc main_#t~ret46#1; {334#(= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0)} is VALID [2022-02-21 04:15:47,842 INFO L290 TraceCheckUtils]: 5: Hoare triple {334#(= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0)} assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:47,842 INFO L290 TraceCheckUtils]: 6: Hoare triple {335#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:47,843 INFO L290 TraceCheckUtils]: 7: Hoare triple {335#(not (= 0 ~systemActive~0))} assume !false; {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:47,843 INFO L290 TraceCheckUtils]: 8: Hoare triple {335#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:47,844 INFO L290 TraceCheckUtils]: 9: Hoare triple {335#(not (= 0 ~systemActive~0))} test_~tmp~6#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:47,844 INFO L290 TraceCheckUtils]: 10: Hoare triple {335#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~6#1); {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:47,845 INFO L290 TraceCheckUtils]: 11: Hoare triple {335#(not (= 0 ~systemActive~0))} test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:47,845 INFO L290 TraceCheckUtils]: 12: Hoare triple {335#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~2#1); {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:47,846 INFO L290 TraceCheckUtils]: 13: Hoare triple {335#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:47,846 INFO L290 TraceCheckUtils]: 14: Hoare triple {335#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:47,847 INFO L290 TraceCheckUtils]: 15: Hoare triple {335#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:47,847 INFO L290 TraceCheckUtils]: 16: Hoare triple {335#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:47,848 INFO L290 TraceCheckUtils]: 17: Hoare triple {335#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {331#false} is VALID [2022-02-21 04:15:47,848 INFO L290 TraceCheckUtils]: 18: Hoare triple {331#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~11#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; {331#false} is VALID [2022-02-21 04:15:47,848 INFO L290 TraceCheckUtils]: 19: Hoare triple {331#false} __utac_acc__Specification1_spec__1_#t~ret47#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~11#1 := __utac_acc__Specification1_spec__1_#t~ret47#1;havoc __utac_acc__Specification1_spec__1_#t~ret47#1; {331#false} is VALID [2022-02-21 04:15:47,849 INFO L290 TraceCheckUtils]: 20: Hoare triple {331#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11#1); {331#false} is VALID [2022-02-21 04:15:47,849 INFO L290 TraceCheckUtils]: 21: Hoare triple {331#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {331#false} is VALID [2022-02-21 04:15:47,850 INFO L290 TraceCheckUtils]: 22: Hoare triple {331#false} assume { :end_inline_timeShift } true; {331#false} is VALID [2022-02-21 04:15:47,851 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 04:15:47,852 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:47,852 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929337529] [2022-02-21 04:15:47,853 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929337529] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:47,853 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:47,854 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:15:47,854 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602457195] [2022-02-21 04:15:47,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:48,003 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:48,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:15:48,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:15:48,046 INFO L87 Difference]: Start difference. First operand has 322 states, 321 states have (on average 1.35202492211838) internal successors, (434), 321 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:49,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:49,535 INFO L93 Difference]: Finished difference Result 695 states and 917 transitions. [2022-02-21 04:15:49,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:15:49,536 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:49,563 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:49,567 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 695 states and 917 transitions. [2022-02-21 04:15:49,589 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 455 [2022-02-21 04:15:49,609 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 695 states to 665 states and 887 transitions. [2022-02-21 04:15:49,611 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 665 [2022-02-21 04:15:49,612 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 665 [2022-02-21 04:15:49,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 665 states and 887 transitions. [2022-02-21 04:15:49,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:49,614 INFO L681 BuchiCegarLoop]: Abstraction has 665 states and 887 transitions. [2022-02-21 04:15:49,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states and 887 transitions. [2022-02-21 04:15:49,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 361. [2022-02-21 04:15:49,643 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:49,645 INFO L82 GeneralOperation]: Start isEquivalent. First operand 665 states and 887 transitions. Second operand has 361 states, 361 states have (on average 1.332409972299169) internal successors, (481), 360 states have internal predecessors, (481), 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 04:15:49,647 INFO L74 IsIncluded]: Start isIncluded. First operand 665 states and 887 transitions. Second operand has 361 states, 361 states have (on average 1.332409972299169) internal successors, (481), 360 states have internal predecessors, (481), 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 04:15:49,649 INFO L87 Difference]: Start difference. First operand 665 states and 887 transitions. Second operand has 361 states, 361 states have (on average 1.332409972299169) internal successors, (481), 360 states have internal predecessors, (481), 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 04:15:49,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:49,674 INFO L93 Difference]: Finished difference Result 665 states and 887 transitions. [2022-02-21 04:15:49,675 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 887 transitions. [2022-02-21 04:15:49,678 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:49,678 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:49,679 INFO L74 IsIncluded]: Start isIncluded. First operand has 361 states, 361 states have (on average 1.332409972299169) internal successors, (481), 360 states have internal predecessors, (481), 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 665 states and 887 transitions. [2022-02-21 04:15:49,680 INFO L87 Difference]: Start difference. First operand has 361 states, 361 states have (on average 1.332409972299169) internal successors, (481), 360 states have internal predecessors, (481), 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 665 states and 887 transitions. [2022-02-21 04:15:49,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:49,696 INFO L93 Difference]: Finished difference Result 665 states and 887 transitions. [2022-02-21 04:15:49,697 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 887 transitions. [2022-02-21 04:15:49,698 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:49,698 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:49,698 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:49,698 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:49,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 361 states have (on average 1.332409972299169) internal successors, (481), 360 states have internal predecessors, (481), 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 04:15:49,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 481 transitions. [2022-02-21 04:15:49,707 INFO L704 BuchiCegarLoop]: Abstraction has 361 states and 481 transitions. [2022-02-21 04:15:49,707 INFO L587 BuchiCegarLoop]: Abstraction has 361 states and 481 transitions. [2022-02-21 04:15:49,707 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:15:49,708 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 361 states and 481 transitions. [2022-02-21 04:15:49,709 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 248 [2022-02-21 04:15:49,710 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:49,710 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:49,710 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:49,710 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] [2022-02-21 04:15:49,711 INFO L791 eck$LassoCheckResult]: Stem: 1344#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1303#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~7#1, main_~tmp~10#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 1273#L1013 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1274#L1006 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 1275#L1021 main_#t~ret46#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 1332#L847 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1269#L821 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1063#L330-2 [2022-02-21 04:15:49,711 INFO L793 eck$LassoCheckResult]: Loop: 1063#L330-2 assume !false; 1064#L331 assume test_~splverifierCounter~0#1 < 4; 1282#L332 test_~tmp~6#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 1291#L340 assume !(0 != test_~tmp~6#1); 1215#L340-2 test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 1216#L350 assume !(0 != test_~tmp___0~2#1); 1097#L350-2 test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 1078#L360 assume 0 != test_~tmp___2~0#1; 1080#L366-2 assume { :begin_inline_timeShift } true; 1071#L69 assume !(0 != ~pumpRunning~0); 1072#L69-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1061#L153 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret8#1, isMethaneAlarm_~retValue_acc~0#1;havoc isMethaneAlarm_~retValue_acc~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 1051#L931 isMethaneAlarm_#t~ret8#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0#1 := isMethaneAlarm_#t~ret8#1;havoc isMethaneAlarm_#t~ret8#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; 1052#L214 processEnvironment_#t~ret6#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret6#1;havoc processEnvironment_#t~ret6#1; 1053#L157 assume 0 != processEnvironment_~tmp~2#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1055#L204-1 assume { :end_inline_deactivatePump } true; 1208#L153-1 assume { :end_inline_processEnvironment } true; 1209#L76-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~11#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 1252#L931-5 __utac_acc__Specification1_spec__1_#t~ret47#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~11#1 := __utac_acc__Specification1_spec__1_#t~ret47#1;havoc __utac_acc__Specification1_spec__1_#t~ret47#1; 1146#L869 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11#1); 1128#L869-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1268#L86 assume { :end_inline_timeShift } true; 1063#L330-2 [2022-02-21 04:15:49,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:49,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:15:49,712 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:49,712 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216916079] [2022-02-21 04:15:49,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:49,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:49,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:49,767 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:49,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:49,796 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:49,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:49,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1369355091, now seen corresponding path program 1 times [2022-02-21 04:15:49,797 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:49,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281468756] [2022-02-21 04:15:49,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:49,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:49,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:49,828 INFO L290 TraceCheckUtils]: 0: Hoare triple {2731#true} assume !false; {2731#true} is VALID [2022-02-21 04:15:49,828 INFO L290 TraceCheckUtils]: 1: Hoare triple {2731#true} assume test_~splverifierCounter~0#1 < 4; {2731#true} is VALID [2022-02-21 04:15:49,828 INFO L290 TraceCheckUtils]: 2: Hoare triple {2731#true} test_~tmp~6#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {2731#true} is VALID [2022-02-21 04:15:49,828 INFO L290 TraceCheckUtils]: 3: Hoare triple {2731#true} assume !(0 != test_~tmp~6#1); {2731#true} is VALID [2022-02-21 04:15:49,828 INFO L290 TraceCheckUtils]: 4: Hoare triple {2731#true} test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; {2731#true} is VALID [2022-02-21 04:15:49,828 INFO L290 TraceCheckUtils]: 5: Hoare triple {2731#true} assume !(0 != test_~tmp___0~2#1); {2731#true} is VALID [2022-02-21 04:15:49,829 INFO L290 TraceCheckUtils]: 6: Hoare triple {2731#true} test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; {2731#true} is VALID [2022-02-21 04:15:49,829 INFO L290 TraceCheckUtils]: 7: Hoare triple {2731#true} assume 0 != test_~tmp___2~0#1; {2731#true} is VALID [2022-02-21 04:15:49,829 INFO L290 TraceCheckUtils]: 8: Hoare triple {2731#true} assume { :begin_inline_timeShift } true; {2731#true} is VALID [2022-02-21 04:15:49,830 INFO L290 TraceCheckUtils]: 9: Hoare triple {2731#true} assume !(0 != ~pumpRunning~0); {2733#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:49,830 INFO L290 TraceCheckUtils]: 10: Hoare triple {2733#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {2733#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:49,830 INFO L290 TraceCheckUtils]: 11: Hoare triple {2733#(= ~pumpRunning~0 0)} assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret8#1, isMethaneAlarm_~retValue_acc~0#1;havoc isMethaneAlarm_~retValue_acc~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; {2732#false} is VALID [2022-02-21 04:15:49,831 INFO L290 TraceCheckUtils]: 12: Hoare triple {2732#false} isMethaneAlarm_#t~ret8#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0#1 := isMethaneAlarm_#t~ret8#1;havoc isMethaneAlarm_#t~ret8#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; {2732#false} is VALID [2022-02-21 04:15:49,831 INFO L290 TraceCheckUtils]: 13: Hoare triple {2732#false} processEnvironment_#t~ret6#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret6#1;havoc processEnvironment_#t~ret6#1; {2732#false} is VALID [2022-02-21 04:15:49,831 INFO L290 TraceCheckUtils]: 14: Hoare triple {2732#false} assume 0 != processEnvironment_~tmp~2#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; {2732#false} is VALID [2022-02-21 04:15:49,831 INFO L290 TraceCheckUtils]: 15: Hoare triple {2732#false} assume { :end_inline_deactivatePump } true; {2732#false} is VALID [2022-02-21 04:15:49,831 INFO L290 TraceCheckUtils]: 16: Hoare triple {2732#false} assume { :end_inline_processEnvironment } true; {2732#false} is VALID [2022-02-21 04:15:49,831 INFO L290 TraceCheckUtils]: 17: Hoare triple {2732#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~11#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; {2732#false} is VALID [2022-02-21 04:15:49,831 INFO L290 TraceCheckUtils]: 18: Hoare triple {2732#false} __utac_acc__Specification1_spec__1_#t~ret47#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~11#1 := __utac_acc__Specification1_spec__1_#t~ret47#1;havoc __utac_acc__Specification1_spec__1_#t~ret47#1; {2732#false} is VALID [2022-02-21 04:15:49,832 INFO L290 TraceCheckUtils]: 19: Hoare triple {2732#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11#1); {2732#false} is VALID [2022-02-21 04:15:49,832 INFO L290 TraceCheckUtils]: 20: Hoare triple {2732#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {2732#false} is VALID [2022-02-21 04:15:49,832 INFO L290 TraceCheckUtils]: 21: Hoare triple {2732#false} assume { :end_inline_timeShift } true; {2732#false} is VALID [2022-02-21 04:15:49,832 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 04:15:49,833 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:49,833 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281468756] [2022-02-21 04:15:49,833 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281468756] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:49,833 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:49,833 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:15:49,833 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412118462] [2022-02-21 04:15:49,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:49,833 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:49,834 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:49,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:15:49,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:15:49,835 INFO L87 Difference]: Start difference. First operand 361 states and 481 transitions. cyclomatic complexity: 123 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:50,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:50,119 INFO L93 Difference]: Finished difference Result 363 states and 457 transitions. [2022-02-21 04:15:50,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:15:50,119 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:50,131 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:50,132 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 363 states and 457 transitions. [2022-02-21 04:15:50,143 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2022-02-21 04:15:50,162 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 363 states to 363 states and 457 transitions. [2022-02-21 04:15:50,162 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 363 [2022-02-21 04:15:50,162 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 363 [2022-02-21 04:15:50,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 363 states and 457 transitions. [2022-02-21 04:15:50,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:50,179 INFO L681 BuchiCegarLoop]: Abstraction has 363 states and 457 transitions. [2022-02-21 04:15:50,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states and 457 transitions. [2022-02-21 04:15:50,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2022-02-21 04:15:50,186 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:50,187 INFO L82 GeneralOperation]: Start isEquivalent. First operand 363 states and 457 transitions. Second operand has 363 states, 363 states have (on average 1.258953168044077) internal successors, (457), 362 states have internal predecessors, (457), 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 04:15:50,188 INFO L74 IsIncluded]: Start isIncluded. First operand 363 states and 457 transitions. Second operand has 363 states, 363 states have (on average 1.258953168044077) internal successors, (457), 362 states have internal predecessors, (457), 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 04:15:50,189 INFO L87 Difference]: Start difference. First operand 363 states and 457 transitions. Second operand has 363 states, 363 states have (on average 1.258953168044077) internal successors, (457), 362 states have internal predecessors, (457), 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 04:15:50,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:50,194 INFO L93 Difference]: Finished difference Result 363 states and 457 transitions. [2022-02-21 04:15:50,194 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 457 transitions. [2022-02-21 04:15:50,195 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:50,195 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:50,196 INFO L74 IsIncluded]: Start isIncluded. First operand has 363 states, 363 states have (on average 1.258953168044077) internal successors, (457), 362 states have internal predecessors, (457), 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 363 states and 457 transitions. [2022-02-21 04:15:50,212 INFO L87 Difference]: Start difference. First operand has 363 states, 363 states have (on average 1.258953168044077) internal successors, (457), 362 states have internal predecessors, (457), 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 363 states and 457 transitions. [2022-02-21 04:15:50,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:50,218 INFO L93 Difference]: Finished difference Result 363 states and 457 transitions. [2022-02-21 04:15:50,218 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 457 transitions. [2022-02-21 04:15:50,219 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:50,219 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:50,219 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:50,219 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:50,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 363 states have (on average 1.258953168044077) internal successors, (457), 362 states have internal predecessors, (457), 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 04:15:50,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 457 transitions. [2022-02-21 04:15:50,225 INFO L704 BuchiCegarLoop]: Abstraction has 363 states and 457 transitions. [2022-02-21 04:15:50,225 INFO L587 BuchiCegarLoop]: Abstraction has 363 states and 457 transitions. [2022-02-21 04:15:50,225 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:15:50,225 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 363 states and 457 transitions. [2022-02-21 04:15:50,227 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2022-02-21 04:15:50,227 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:50,227 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:50,228 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:50,243 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:50,243 INFO L791 eck$LassoCheckResult]: Stem: 3363#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 3320#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~7#1, main_~tmp~10#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 3288#L1013 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3289#L1006 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 3290#L1021 main_#t~ret46#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 3348#L847 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 3283#L821 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3284#L330-2 [2022-02-21 04:15:50,244 INFO L793 eck$LassoCheckResult]: Loop: 3284#L330-2 assume !false; 3448#L331 assume test_~splverifierCounter~0#1 < 4; 3311#L332 test_~tmp~6#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 3312#L340 assume !(0 != test_~tmp~6#1); 3240#L340-2 test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 3241#L350 assume !(0 != test_~tmp___0~2#1); 3146#L350-2 test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 3358#L360 assume 0 != test_~tmp___2~0#1; 3249#L366-2 assume { :begin_inline_timeShift } true; 3250#L69 assume !(0 != ~pumpRunning~0); 3355#L69-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 3115#L153 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret5#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 3116#L127-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 3333#L101-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret17#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;havoc isHighWaterSensorDry_~retValue_acc~10#1; 3163#L971-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~10#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~10#1; 3164#L976-3 isHighWaterLevel_#t~ret17#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret17#1;havoc isHighWaterLevel_#t~ret17#1; 3351#L272-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 3324#L272-11 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 3317#L278-3 processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 3318#L105-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3259#L93-6 assume { :end_inline_processEnvironment__wrappee__base } true; 3097#L101-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3098#L127-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 3236#L153-1 assume { :end_inline_processEnvironment } true; 3237#L76-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~11#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 3454#L931-5 __utac_acc__Specification1_spec__1_#t~ret47#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~11#1 := __utac_acc__Specification1_spec__1_#t~ret47#1;havoc __utac_acc__Specification1_spec__1_#t~ret47#1; 3452#L869 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11#1); 3450#L869-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 3449#L86 assume { :end_inline_timeShift } true; 3284#L330-2 [2022-02-21 04:15:50,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:50,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:15:50,245 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:50,245 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222059899] [2022-02-21 04:15:50,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:50,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:50,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:50,256 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:50,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:50,275 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:50,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:50,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1645272579, now seen corresponding path program 1 times [2022-02-21 04:15:50,292 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:50,292 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428872365] [2022-02-21 04:15:50,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:50,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:50,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:50,330 INFO L290 TraceCheckUtils]: 0: Hoare triple {4191#true} assume !false; {4191#true} is VALID [2022-02-21 04:15:50,331 INFO L290 TraceCheckUtils]: 1: Hoare triple {4191#true} assume test_~splverifierCounter~0#1 < 4; {4191#true} is VALID [2022-02-21 04:15:50,331 INFO L290 TraceCheckUtils]: 2: Hoare triple {4191#true} test_~tmp~6#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {4191#true} is VALID [2022-02-21 04:15:50,331 INFO L290 TraceCheckUtils]: 3: Hoare triple {4191#true} assume !(0 != test_~tmp~6#1); {4191#true} is VALID [2022-02-21 04:15:50,332 INFO L290 TraceCheckUtils]: 4: Hoare triple {4191#true} test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; {4191#true} is VALID [2022-02-21 04:15:50,332 INFO L290 TraceCheckUtils]: 5: Hoare triple {4191#true} assume !(0 != test_~tmp___0~2#1); {4191#true} is VALID [2022-02-21 04:15:50,332 INFO L290 TraceCheckUtils]: 6: Hoare triple {4191#true} test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; {4191#true} is VALID [2022-02-21 04:15:50,332 INFO L290 TraceCheckUtils]: 7: Hoare triple {4191#true} assume 0 != test_~tmp___2~0#1; {4191#true} is VALID [2022-02-21 04:15:50,332 INFO L290 TraceCheckUtils]: 8: Hoare triple {4191#true} assume { :begin_inline_timeShift } true; {4191#true} is VALID [2022-02-21 04:15:50,333 INFO L290 TraceCheckUtils]: 9: Hoare triple {4191#true} assume !(0 != ~pumpRunning~0); {4191#true} is VALID [2022-02-21 04:15:50,333 INFO L290 TraceCheckUtils]: 10: Hoare triple {4191#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {4191#true} is VALID [2022-02-21 04:15:50,333 INFO L290 TraceCheckUtils]: 11: Hoare triple {4191#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret5#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; {4191#true} is VALID [2022-02-21 04:15:50,333 INFO L290 TraceCheckUtils]: 12: Hoare triple {4191#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; {4191#true} is VALID [2022-02-21 04:15:50,333 INFO L290 TraceCheckUtils]: 13: Hoare triple {4191#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret17#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;havoc isHighWaterSensorDry_~retValue_acc~10#1; {4191#true} is VALID [2022-02-21 04:15:50,336 INFO L290 TraceCheckUtils]: 14: Hoare triple {4191#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~10#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~10#1; {4193#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 0)} is VALID [2022-02-21 04:15:50,337 INFO L290 TraceCheckUtils]: 15: Hoare triple {4193#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 0)} isHighWaterLevel_#t~ret17#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret17#1;havoc isHighWaterLevel_#t~ret17#1; {4194#(= |ULTIMATE.start_isHighWaterLevel_~tmp~4#1| 0)} is VALID [2022-02-21 04:15:50,337 INFO L290 TraceCheckUtils]: 16: Hoare triple {4194#(= |ULTIMATE.start_isHighWaterLevel_~tmp~4#1| 0)} assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; {4192#false} is VALID [2022-02-21 04:15:50,337 INFO L290 TraceCheckUtils]: 17: Hoare triple {4192#false} isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; {4192#false} is VALID [2022-02-21 04:15:50,338 INFO L290 TraceCheckUtils]: 18: Hoare triple {4192#false} processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; {4192#false} is VALID [2022-02-21 04:15:50,338 INFO L290 TraceCheckUtils]: 19: Hoare triple {4192#false} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {4192#false} is VALID [2022-02-21 04:15:50,338 INFO L290 TraceCheckUtils]: 20: Hoare triple {4192#false} assume { :end_inline_processEnvironment__wrappee__base } true; {4192#false} is VALID [2022-02-21 04:15:50,338 INFO L290 TraceCheckUtils]: 21: Hoare triple {4192#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {4192#false} is VALID [2022-02-21 04:15:50,338 INFO L290 TraceCheckUtils]: 22: Hoare triple {4192#false} assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; {4192#false} is VALID [2022-02-21 04:15:50,339 INFO L290 TraceCheckUtils]: 23: Hoare triple {4192#false} assume { :end_inline_processEnvironment } true; {4192#false} is VALID [2022-02-21 04:15:50,339 INFO L290 TraceCheckUtils]: 24: Hoare triple {4192#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~11#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; {4192#false} is VALID [2022-02-21 04:15:50,339 INFO L290 TraceCheckUtils]: 25: Hoare triple {4192#false} __utac_acc__Specification1_spec__1_#t~ret47#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~11#1 := __utac_acc__Specification1_spec__1_#t~ret47#1;havoc __utac_acc__Specification1_spec__1_#t~ret47#1; {4192#false} is VALID [2022-02-21 04:15:50,340 INFO L290 TraceCheckUtils]: 26: Hoare triple {4192#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11#1); {4192#false} is VALID [2022-02-21 04:15:50,340 INFO L290 TraceCheckUtils]: 27: Hoare triple {4192#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {4192#false} is VALID [2022-02-21 04:15:50,341 INFO L290 TraceCheckUtils]: 28: Hoare triple {4192#false} assume { :end_inline_timeShift } true; {4192#false} is VALID [2022-02-21 04:15:50,342 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 04:15:50,342 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:50,343 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428872365] [2022-02-21 04:15:50,343 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428872365] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:50,343 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:50,344 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:15:50,344 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444521691] [2022-02-21 04:15:50,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:50,344 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:50,345 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:50,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-21 04:15:50,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-21 04:15:50,346 INFO L87 Difference]: Start difference. First operand 363 states and 457 transitions. cyclomatic complexity: 97 Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 04:15:51,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:51,203 INFO L93 Difference]: Finished difference Result 1039 states and 1285 transitions. [2022-02-21 04:15:51,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:15:51,204 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 04:15:51,217 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:51,236 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1039 states and 1285 transitions. [2022-02-21 04:15:51,323 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 741 [2022-02-21 04:15:51,412 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1039 states to 1039 states and 1285 transitions. [2022-02-21 04:15:51,412 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1039 [2022-02-21 04:15:51,414 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1039 [2022-02-21 04:15:51,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1039 states and 1285 transitions. [2022-02-21 04:15:51,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:51,416 INFO L681 BuchiCegarLoop]: Abstraction has 1039 states and 1285 transitions. [2022-02-21 04:15:51,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states and 1285 transitions. [2022-02-21 04:15:51,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 381. [2022-02-21 04:15:51,453 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:51,454 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1039 states and 1285 transitions. Second operand has 381 states, 381 states have (on average 1.246719160104987) internal successors, (475), 380 states have internal predecessors, (475), 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 04:15:51,455 INFO L74 IsIncluded]: Start isIncluded. First operand 1039 states and 1285 transitions. Second operand has 381 states, 381 states have (on average 1.246719160104987) internal successors, (475), 380 states have internal predecessors, (475), 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 04:15:51,456 INFO L87 Difference]: Start difference. First operand 1039 states and 1285 transitions. Second operand has 381 states, 381 states have (on average 1.246719160104987) internal successors, (475), 380 states have internal predecessors, (475), 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 04:15:51,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:51,543 INFO L93 Difference]: Finished difference Result 1039 states and 1285 transitions. [2022-02-21 04:15:51,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1285 transitions. [2022-02-21 04:15:51,545 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:51,545 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:51,546 INFO L74 IsIncluded]: Start isIncluded. First operand has 381 states, 381 states have (on average 1.246719160104987) internal successors, (475), 380 states have internal predecessors, (475), 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 1039 states and 1285 transitions. [2022-02-21 04:15:51,546 INFO L87 Difference]: Start difference. First operand has 381 states, 381 states have (on average 1.246719160104987) internal successors, (475), 380 states have internal predecessors, (475), 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 1039 states and 1285 transitions. [2022-02-21 04:15:51,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:51,599 INFO L93 Difference]: Finished difference Result 1039 states and 1285 transitions. [2022-02-21 04:15:51,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1285 transitions. [2022-02-21 04:15:51,601 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:51,601 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:51,601 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:51,601 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:51,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 381 states have (on average 1.246719160104987) internal successors, (475), 380 states have internal predecessors, (475), 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 04:15:51,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 475 transitions. [2022-02-21 04:15:51,607 INFO L704 BuchiCegarLoop]: Abstraction has 381 states and 475 transitions. [2022-02-21 04:15:51,607 INFO L587 BuchiCegarLoop]: Abstraction has 381 states and 475 transitions. [2022-02-21 04:15:51,607 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:15:51,608 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 381 states and 475 transitions. [2022-02-21 04:15:51,609 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 267 [2022-02-21 04:15:51,623 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:51,623 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:51,624 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:51,624 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:51,624 INFO L791 eck$LassoCheckResult]: Stem: 5525#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 5474#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~7#1, main_~tmp~10#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 5437#L1013 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 5438#L1006 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 5439#L1021 main_#t~ret46#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 5508#L847 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 5432#L821 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 5257#L330-2 [2022-02-21 04:15:51,624 INFO L793 eck$LassoCheckResult]: Loop: 5257#L330-2 assume !false; 5258#L331 assume test_~splverifierCounter~0#1 < 4; 5448#L332 test_~tmp~6#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 5600#L340 assume !(0 != test_~tmp~6#1); 5384#L340-2 test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 5385#L350 assume !(0 != test_~tmp___0~2#1); 5288#L350-2 test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 5271#L360 assume 0 != test_~tmp___2~0#1; 5273#L366-2 assume { :begin_inline_timeShift } true; 5263#L69 assume !(0 != ~pumpRunning~0); 5264#L69-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 5255#L153 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret5#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 5256#L127-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 5491#L101-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret17#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;havoc isHighWaterSensorDry_~retValue_acc~10#1; 5302#L971-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~10#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~10#1; 5303#L976-3 isHighWaterLevel_#t~ret17#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret17#1;havoc isHighWaterLevel_#t~ret17#1; 5526#L272-9 assume !(0 != isHighWaterLevel_~tmp~4#1);isHighWaterLevel_~tmp___0~0#1 := 1; 5479#L272-11 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 5471#L278-3 processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 5472#L105-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 5404#L93-6 assume { :end_inline_processEnvironment__wrappee__base } true; 5237#L101-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 5238#L127-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 5381#L153-1 assume { :end_inline_processEnvironment } true; 5382#L76-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~11#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 5416#L931-5 __utac_acc__Specification1_spec__1_#t~ret47#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~11#1 := __utac_acc__Specification1_spec__1_#t~ret47#1;havoc __utac_acc__Specification1_spec__1_#t~ret47#1; 5331#L869 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11#1); 5316#L869-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 5604#L86 assume { :end_inline_timeShift } true; 5257#L330-2 [2022-02-21 04:15:51,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:51,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-02-21 04:15:51,625 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:51,625 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201971874] [2022-02-21 04:15:51,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:51,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:51,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:51,636 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:51,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:51,666 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:51,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:51,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1058466565, now seen corresponding path program 1 times [2022-02-21 04:15:51,667 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:51,667 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481816360] [2022-02-21 04:15:51,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:51,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:51,711 INFO L290 TraceCheckUtils]: 0: Hoare triple {7701#true} assume !false; {7701#true} is VALID [2022-02-21 04:15:51,711 INFO L290 TraceCheckUtils]: 1: Hoare triple {7701#true} assume test_~splverifierCounter~0#1 < 4; {7701#true} is VALID [2022-02-21 04:15:51,711 INFO L290 TraceCheckUtils]: 2: Hoare triple {7701#true} test_~tmp~6#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {7701#true} is VALID [2022-02-21 04:15:51,711 INFO L290 TraceCheckUtils]: 3: Hoare triple {7701#true} assume !(0 != test_~tmp~6#1); {7701#true} is VALID [2022-02-21 04:15:51,711 INFO L290 TraceCheckUtils]: 4: Hoare triple {7701#true} test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; {7701#true} is VALID [2022-02-21 04:15:51,711 INFO L290 TraceCheckUtils]: 5: Hoare triple {7701#true} assume !(0 != test_~tmp___0~2#1); {7701#true} is VALID [2022-02-21 04:15:51,712 INFO L290 TraceCheckUtils]: 6: Hoare triple {7701#true} test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; {7701#true} is VALID [2022-02-21 04:15:51,712 INFO L290 TraceCheckUtils]: 7: Hoare triple {7701#true} assume 0 != test_~tmp___2~0#1; {7701#true} is VALID [2022-02-21 04:15:51,712 INFO L290 TraceCheckUtils]: 8: Hoare triple {7701#true} assume { :begin_inline_timeShift } true; {7701#true} is VALID [2022-02-21 04:15:51,712 INFO L290 TraceCheckUtils]: 9: Hoare triple {7701#true} assume !(0 != ~pumpRunning~0); {7701#true} is VALID [2022-02-21 04:15:51,712 INFO L290 TraceCheckUtils]: 10: Hoare triple {7701#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {7701#true} is VALID [2022-02-21 04:15:51,712 INFO L290 TraceCheckUtils]: 11: Hoare triple {7701#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret5#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; {7701#true} is VALID [2022-02-21 04:15:51,712 INFO L290 TraceCheckUtils]: 12: Hoare triple {7701#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; {7701#true} is VALID [2022-02-21 04:15:51,712 INFO L290 TraceCheckUtils]: 13: Hoare triple {7701#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret17#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;havoc isHighWaterSensorDry_~retValue_acc~10#1; {7701#true} is VALID [2022-02-21 04:15:51,712 INFO L290 TraceCheckUtils]: 14: Hoare triple {7701#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~10#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~10#1; {7701#true} is VALID [2022-02-21 04:15:51,712 INFO L290 TraceCheckUtils]: 15: Hoare triple {7701#true} isHighWaterLevel_#t~ret17#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret17#1;havoc isHighWaterLevel_#t~ret17#1; {7701#true} is VALID [2022-02-21 04:15:51,715 INFO L290 TraceCheckUtils]: 16: Hoare triple {7701#true} assume !(0 != isHighWaterLevel_~tmp~4#1);isHighWaterLevel_~tmp___0~0#1 := 1; {7703#(<= 1 |ULTIMATE.start_isHighWaterLevel_~tmp___0~0#1|)} is VALID [2022-02-21 04:15:51,716 INFO L290 TraceCheckUtils]: 17: Hoare triple {7703#(<= 1 |ULTIMATE.start_isHighWaterLevel_~tmp___0~0#1|)} isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; {7704#(<= 1 |ULTIMATE.start_isHighWaterLevel_#res#1|)} is VALID [2022-02-21 04:15:51,716 INFO L290 TraceCheckUtils]: 18: Hoare triple {7704#(<= 1 |ULTIMATE.start_isHighWaterLevel_#res#1|)} processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; {7705#(<= 1 |ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~0#1|)} is VALID [2022-02-21 04:15:51,716 INFO L290 TraceCheckUtils]: 19: Hoare triple {7705#(<= 1 |ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~0#1|)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {7702#false} is VALID [2022-02-21 04:15:51,716 INFO L290 TraceCheckUtils]: 20: Hoare triple {7702#false} assume { :end_inline_processEnvironment__wrappee__base } true; {7702#false} is VALID [2022-02-21 04:15:51,717 INFO L290 TraceCheckUtils]: 21: Hoare triple {7702#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {7702#false} is VALID [2022-02-21 04:15:51,717 INFO L290 TraceCheckUtils]: 22: Hoare triple {7702#false} assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; {7702#false} is VALID [2022-02-21 04:15:51,717 INFO L290 TraceCheckUtils]: 23: Hoare triple {7702#false} assume { :end_inline_processEnvironment } true; {7702#false} is VALID [2022-02-21 04:15:51,717 INFO L290 TraceCheckUtils]: 24: Hoare triple {7702#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~11#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; {7702#false} is VALID [2022-02-21 04:15:51,717 INFO L290 TraceCheckUtils]: 25: Hoare triple {7702#false} __utac_acc__Specification1_spec__1_#t~ret47#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~11#1 := __utac_acc__Specification1_spec__1_#t~ret47#1;havoc __utac_acc__Specification1_spec__1_#t~ret47#1; {7702#false} is VALID [2022-02-21 04:15:51,717 INFO L290 TraceCheckUtils]: 26: Hoare triple {7702#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11#1); {7702#false} is VALID [2022-02-21 04:15:51,717 INFO L290 TraceCheckUtils]: 27: Hoare triple {7702#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {7702#false} is VALID [2022-02-21 04:15:51,718 INFO L290 TraceCheckUtils]: 28: Hoare triple {7702#false} assume { :end_inline_timeShift } true; {7702#false} is VALID [2022-02-21 04:15:51,718 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 04:15:51,718 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:51,719 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481816360] [2022-02-21 04:15:51,719 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481816360] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:51,719 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:51,719 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:15:51,719 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029151100] [2022-02-21 04:15:51,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:51,719 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:51,720 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:51,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:15:51,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:15:51,720 INFO L87 Difference]: Start difference. First operand 381 states and 475 transitions. cyclomatic complexity: 97 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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 04:15:52,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:52,515 INFO L93 Difference]: Finished difference Result 907 states and 1123 transitions. [2022-02-21 04:15:52,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:15:52,516 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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 04:15:52,531 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:52,532 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 907 states and 1123 transitions. [2022-02-21 04:15:52,597 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 653 [2022-02-21 04:15:52,663 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 907 states to 907 states and 1123 transitions. [2022-02-21 04:15:52,673 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 907 [2022-02-21 04:15:52,674 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 907 [2022-02-21 04:15:52,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 907 states and 1123 transitions. [2022-02-21 04:15:52,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:52,675 INFO L681 BuchiCegarLoop]: Abstraction has 907 states and 1123 transitions. [2022-02-21 04:15:52,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states and 1123 transitions. [2022-02-21 04:15:52,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 408. [2022-02-21 04:15:52,681 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:52,682 INFO L82 GeneralOperation]: Start isEquivalent. First operand 907 states and 1123 transitions. Second operand has 408 states, 408 states have (on average 1.2303921568627452) internal successors, (502), 407 states have internal predecessors, (502), 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 04:15:52,683 INFO L74 IsIncluded]: Start isIncluded. First operand 907 states and 1123 transitions. Second operand has 408 states, 408 states have (on average 1.2303921568627452) internal successors, (502), 407 states have internal predecessors, (502), 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 04:15:52,684 INFO L87 Difference]: Start difference. First operand 907 states and 1123 transitions. Second operand has 408 states, 408 states have (on average 1.2303921568627452) internal successors, (502), 407 states have internal predecessors, (502), 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 04:15:52,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:52,713 INFO L93 Difference]: Finished difference Result 907 states and 1123 transitions. [2022-02-21 04:15:52,713 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1123 transitions. [2022-02-21 04:15:52,714 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:52,714 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:52,715 INFO L74 IsIncluded]: Start isIncluded. First operand has 408 states, 408 states have (on average 1.2303921568627452) internal successors, (502), 407 states have internal predecessors, (502), 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 907 states and 1123 transitions. [2022-02-21 04:15:52,716 INFO L87 Difference]: Start difference. First operand has 408 states, 408 states have (on average 1.2303921568627452) internal successors, (502), 407 states have internal predecessors, (502), 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 907 states and 1123 transitions. [2022-02-21 04:15:52,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:52,747 INFO L93 Difference]: Finished difference Result 907 states and 1123 transitions. [2022-02-21 04:15:52,747 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1123 transitions. [2022-02-21 04:15:52,749 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:52,749 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:52,749 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:52,749 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:52,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 408 states have (on average 1.2303921568627452) internal successors, (502), 407 states have internal predecessors, (502), 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 04:15:52,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 502 transitions. [2022-02-21 04:15:52,758 INFO L704 BuchiCegarLoop]: Abstraction has 408 states and 502 transitions. [2022-02-21 04:15:52,758 INFO L587 BuchiCegarLoop]: Abstraction has 408 states and 502 transitions. [2022-02-21 04:15:52,758 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2022-02-21 04:15:52,758 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 408 states and 502 transitions. [2022-02-21 04:15:52,760 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 285 [2022-02-21 04:15:52,760 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:52,760 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:52,761 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:52,761 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:52,761 INFO L791 eck$LassoCheckResult]: Stem: 8892#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 8846#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~7#1, main_~tmp~10#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 8815#L1013 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 8816#L1006 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 8817#L1021 main_#t~ret46#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 8875#L847 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 8811#L821 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 8639#L330-2 [2022-02-21 04:15:52,761 INFO L793 eck$LassoCheckResult]: Loop: 8639#L330-2 assume !false; 8640#L331 assume test_~splverifierCounter~0#1 < 4; 8826#L332 test_~tmp~6#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 8835#L340 assume !(0 != test_~tmp~6#1); 8766#L340-2 test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 8767#L350 assume !(0 != test_~tmp___0~2#1); 8670#L350-2 test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 8653#L360 assume 0 != test_~tmp___2~0#1; 8655#L366-2 assume { :begin_inline_timeShift } true; 8647#L69 assume !(0 != ~pumpRunning~0); 8648#L69-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 8637#L153 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret5#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 8638#L127-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 8859#L101-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret17#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;havoc isHighWaterSensorDry_~retValue_acc~10#1; 8687#L971-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~10#1; 8689#L976-3 isHighWaterLevel_#t~ret17#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret17#1;havoc isHighWaterLevel_#t~ret17#1; 8879#L272-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 8907#L272-11 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 8906#L278-3 processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 8905#L105-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 8785#L93-6 assume { :end_inline_processEnvironment__wrappee__base } true; 8622#L101-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 8623#L127-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 8763#L153-1 assume { :end_inline_processEnvironment } true; 8764#L76-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~11#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 8797#L931-5 __utac_acc__Specification1_spec__1_#t~ret47#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~11#1 := __utac_acc__Specification1_spec__1_#t~ret47#1;havoc __utac_acc__Specification1_spec__1_#t~ret47#1; 8713#L869 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11#1); 8698#L869-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 8810#L86 assume { :end_inline_timeShift } true; 8639#L330-2 [2022-02-21 04:15:52,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:52,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2022-02-21 04:15:52,763 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:52,763 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901956035] [2022-02-21 04:15:52,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:52,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:52,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:52,772 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:52,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:52,780 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:52,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:52,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1369831039, now seen corresponding path program 1 times [2022-02-21 04:15:52,781 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:52,781 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503223060] [2022-02-21 04:15:52,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:52,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:52,788 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:52,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:52,796 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:52,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:52,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1495565763, now seen corresponding path program 1 times [2022-02-21 04:15:52,797 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:52,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574567638] [2022-02-21 04:15:52,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:52,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:52,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:52,807 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:52,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:52,817 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:55,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:15:55 BoogieIcfgContainer [2022-02-21 04:15:55,424 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:15:55,425 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:15:55,425 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:15:55,425 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:15:55,426 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:47" (3/4) ... [2022-02-21 04:15:55,428 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:15:55,479 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:15:55,479 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:15:55,480 INFO L158 Benchmark]: Toolchain (without parser) took 9805.93ms. Allocated memory was 115.3MB in the beginning and 247.5MB in the end (delta: 132.1MB). Free memory was 82.3MB in the beginning and 168.8MB in the end (delta: -86.5MB). Peak memory consumption was 46.7MB. Max. memory is 16.1GB. [2022-02-21 04:15:55,480 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 79.7MB. Free memory was 38.0MB in the beginning and 38.0MB in the end (delta: 40.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:15:55,480 INFO L158 Benchmark]: CACSL2BoogieTranslator took 429.69ms. Allocated memory is still 115.3MB. Free memory was 82.1MB in the beginning and 79.5MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:15:55,480 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.43ms. Allocated memory is still 115.3MB. Free memory was 79.5MB in the beginning and 72.8MB in the end (delta: 6.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:15:55,481 INFO L158 Benchmark]: Boogie Preprocessor took 61.89ms. Allocated memory is still 115.3MB. Free memory was 72.8MB in the beginning and 68.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:55,481 INFO L158 Benchmark]: RCFGBuilder took 1001.84ms. Allocated memory is still 115.3MB. Free memory was 68.6MB in the beginning and 56.5MB in the end (delta: 12.2MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:55,481 INFO L158 Benchmark]: BuchiAutomizer took 8159.14ms. Allocated memory was 115.3MB in the beginning and 247.5MB in the end (delta: 132.1MB). Free memory was 56.5MB in the beginning and 172.0MB in the end (delta: -115.5MB). Peak memory consumption was 87.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:55,481 INFO L158 Benchmark]: Witness Printer took 53.50ms. Allocated memory is still 247.5MB. Free memory was 172.0MB in the beginning and 168.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:55,482 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 0.16ms. Allocated memory is still 79.7MB. Free memory was 38.0MB in the beginning and 38.0MB in the end (delta: 40.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 429.69ms. Allocated memory is still 115.3MB. Free memory was 82.1MB in the beginning and 79.5MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.43ms. Allocated memory is still 115.3MB. Free memory was 79.5MB in the beginning and 72.8MB in the end (delta: 6.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.89ms. Allocated memory is still 115.3MB. Free memory was 72.8MB in the beginning and 68.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1001.84ms. Allocated memory is still 115.3MB. Free memory was 68.6MB in the beginning and 56.5MB in the end (delta: 12.2MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 8159.14ms. Allocated memory was 115.3MB in the beginning and 247.5MB in the end (delta: 132.1MB). Free memory was 56.5MB in the beginning and 172.0MB in the end (delta: -115.5MB). Peak memory consumption was 87.1MB. Max. memory is 16.1GB. * Witness Printer took 53.50ms. Allocated memory is still 247.5MB. Free memory was 172.0MB in the beginning and 168.8MB 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 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 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 8.0s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 3.4s. Construction of modules took 0.2s. Büchi inclusion checks took 3.2s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 1461 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.3s Buchi closure took 0.0s. Biggest automaton had 408 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3439 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3439 mSDsluCounter, 5273 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3443 mSDsCounter, 109 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 314 IncrementalHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 109 mSolverCounterUnsat, 1830 mSDtfsCounter, 314 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 330]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29b9a745=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@129e1156=0, retValue_acc=0, tmp=0, tmp___0=0, NULL=0, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19a14a22=0, NULL=1, tmp___0=0, retValue_acc=1, methaneLevelCritical=0, \result=0, retValue_acc=1, \result=1, \result=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b6eae18=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63302cdf=0, retValue_acc=0, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f8beb3b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59303966=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5db60d63=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58075bbb=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@203088a8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2467dbfd=0, \result=0, tmp=0, tmp=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, \result=0, tmp=0, tmp=0, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 330]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L61] int pumpRunning = 0; [L62] int systemActive = 1; [L565] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L762] int cleanupTimeShifts = 4; [L888] int waterLevel = 1; [L889] int methaneLevelCritical = 0; [L838] int retValue_acc ; [L839] int tmp ; [L843] FCALL select_helpers() [L844] FCALL select_features() [L845] CALL, EXPR valid_product() [L1017] int retValue_acc ; [L1020] retValue_acc = 1 [L1021] return (retValue_acc); [L845] RET, EXPR valid_product() [L845] tmp = valid_product() [L847] COND TRUE \read(tmp) [L849] FCALL setup() [L850] CALL runTest() [L829] CALL test() [L321] int splverifierCounter ; [L322] int tmp ; [L323] int tmp___0 ; [L324] int tmp___1 ; [L325] int tmp___2 ; [L328] splverifierCounter = 0 Loop: [L330] COND TRUE 1 [L332] COND TRUE splverifierCounter < 4 [L338] tmp = __VERIFIER_nondet_int() [L340] COND FALSE !(\read(tmp)) [L348] tmp___0 = __VERIFIER_nondet_int() [L350] COND FALSE !(\read(tmp___0)) [L358] tmp___2 = __VERIFIER_nondet_int() [L360] COND TRUE \read(tmp___2) [L375] CALL timeShift() [L69] COND FALSE !(\read(pumpRunning)) [L76] COND TRUE \read(systemActive) [L78] CALL processEnvironment() [L150] int tmp ; [L153] COND FALSE !(\read(pumpRunning)) [L168] CALL processEnvironment__wrappee__methaneQuery() [L124] int tmp ; [L127] COND FALSE !(\read(pumpRunning)) [L142] CALL processEnvironment__wrappee__highWaterSensor() [L98] int tmp ; [L101] COND TRUE ! pumpRunning [L103] CALL, EXPR isHighWaterLevel() [L264] int retValue_acc ; [L265] int tmp ; [L266] int tmp___0 ; [L270] CALL, EXPR isHighWaterSensorDry() [L968] int retValue_acc ; [L971] COND TRUE waterLevel < 2 [L972] retValue_acc = 1 [L973] return (retValue_acc); [L270] RET, EXPR isHighWaterSensorDry() [L270] tmp = isHighWaterSensorDry() [L272] COND TRUE \read(tmp) [L273] tmp___0 = 0 [L277] retValue_acc = tmp___0 [L278] return (retValue_acc); [L103] RET, EXPR isHighWaterLevel() [L103] tmp = isHighWaterLevel() [L105] COND FALSE !(\read(tmp)) [L111] FCALL processEnvironment__wrappee__base() [L142] RET processEnvironment__wrappee__highWaterSensor() [L168] RET processEnvironment__wrappee__methaneQuery() [L78] RET processEnvironment() [L84] CALL __utac_acc__Specification1_spec__1() [L862] int tmp ; [L863] int tmp___0 ; [L867] CALL, EXPR isMethaneLevelCritical() [L927] int retValue_acc ; [L930] retValue_acc = methaneLevelCritical [L931] return (retValue_acc); [L867] RET, EXPR isMethaneLevelCritical() [L867] tmp = isMethaneLevelCritical() [L869] COND FALSE !(\read(tmp)) [L84] RET __utac_acc__Specification1_spec__1() [L375] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:15:55,548 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)