./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product42.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 76f5874bdc2210da6be360b9991ed804689b1623a0180577df5607e0ad5d02da --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:45,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:45,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:45,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:45,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:45,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:45,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:45,083 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:45,085 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:45,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:45,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:45,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:45,091 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:45,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:45,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:45,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:45,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:45,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:45,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:45,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:45,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:45,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:45,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:45,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:45,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:45,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:45,118 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:45,119 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:45,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:45,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:45,121 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:45,122 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:45,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:45,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:45,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:45,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:45,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:45,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:45,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:45,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:45,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:45,130 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:45,158 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:45,159 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:45,159 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:45,160 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:45,161 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:45,161 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:45,161 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:45,161 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:45,162 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:45,162 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:45,163 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:45,163 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:45,163 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:45,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:45,164 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:45,164 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:45,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:45,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:45,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:45,165 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:45,165 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:45,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:45,165 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:45,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:45,166 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:45,166 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:45,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:45,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:45,167 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:45,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:45,167 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:45,168 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:45,169 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 76f5874bdc2210da6be360b9991ed804689b1623a0180577df5607e0ad5d02da [2022-02-21 04:18:45,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:45,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:45,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:45,411 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:45,412 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:45,413 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c [2022-02-21 04:18:45,490 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faee9798e/91a40039ce584b04877662e845dcbe3b/FLAG9a4d944e3 [2022-02-21 04:18:45,893 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:45,895 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c [2022-02-21 04:18:45,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faee9798e/91a40039ce584b04877662e845dcbe3b/FLAG9a4d944e3 [2022-02-21 04:18:45,919 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faee9798e/91a40039ce584b04877662e845dcbe3b [2022-02-21 04:18:45,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:45,923 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:45,931 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:45,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:45,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:45,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:45" (1/1) ... [2022-02-21 04:18:45,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@310933ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:45, skipping insertion in model container [2022-02-21 04:18:45,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:45" (1/1) ... [2022-02-21 04:18:45,941 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:45,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:46,162 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c[3693,3706] [2022-02-21 04:18:46,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:46,309 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:46,343 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c[3693,3706] [2022-02-21 04:18:46,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:46,431 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:46,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:46 WrapperNode [2022-02-21 04:18:46,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:46,433 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:46,433 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:46,434 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:46,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:46" (1/1) ... [2022-02-21 04:18:46,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:46" (1/1) ... [2022-02-21 04:18:46,512 INFO L137 Inliner]: procedures = 56, calls = 155, calls flagged for inlining = 52, calls inlined = 64, statements flattened = 495 [2022-02-21 04:18:46,516 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:46,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:46,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:46,517 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:46,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:46" (1/1) ... [2022-02-21 04:18:46,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:46" (1/1) ... [2022-02-21 04:18:46,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:46" (1/1) ... [2022-02-21 04:18:46,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:46" (1/1) ... [2022-02-21 04:18:46,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:46" (1/1) ... [2022-02-21 04:18:46,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:46" (1/1) ... [2022-02-21 04:18:46,554 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:46" (1/1) ... [2022-02-21 04:18:46,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:46,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:46,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:46,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:46,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:46" (1/1) ... [2022-02-21 04:18:46,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:46,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:46,596 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:18:46,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:18:46,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:46,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:46,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:46,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:46,695 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:46,697 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:47,122 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:47,128 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:47,129 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:47,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:47 BoogieIcfgContainer [2022-02-21 04:18:47,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:47,132 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:47,132 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:47,134 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:47,135 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:47,135 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:45" (1/3) ... [2022-02-21 04:18:47,136 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1df96efd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:47, skipping insertion in model container [2022-02-21 04:18:47,136 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:47,136 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:46" (2/3) ... [2022-02-21 04:18:47,137 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1df96efd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:47, skipping insertion in model container [2022-02-21 04:18:47,137 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:47,137 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:47" (3/3) ... [2022-02-21 04:18:47,138 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product42.cil.c [2022-02-21 04:18:47,176 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:47,176 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:47,176 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:47,177 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:47,177 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:47,177 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:47,177 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:47,177 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:47,194 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 128 states, 127 states have (on average 1.3622047244094488) internal successors, (173), 127 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:47,230 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2022-02-21 04:18:47,231 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:47,231 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:47,236 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:47,236 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] [2022-02-21 04:18:47,236 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:47,238 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 128 states, 127 states have (on average 1.3622047244094488) internal successors, (173), 127 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:47,256 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2022-02-21 04:18:47,256 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:47,256 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:47,257 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:47,257 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] [2022-02-21 04:18:47,261 INFO L791 eck$LassoCheckResult]: Stem: 117#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 41#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret7#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 27#L238true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 77#L231true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 67#L246true main_#t~ret7#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1; 60#L193true assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 14#L165true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 102#L59true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 73#L726-2true [2022-02-21 04:18:47,264 INFO L793 eck$LassoCheckResult]: Loop: 73#L726-2true assume !false; 17#L727true assume test_~splverifierCounter~0#1 < 4; 68#L728true test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 36#L736true assume !(0 != test_~tmp~5#1); 51#L736-2true test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 81#L746true assume !(0 != test_~tmp___0~1#1); 78#L746-2true test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 74#L756true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 26#L962true assume { :end_inline_startSystem } true; 91#L764-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 86#L898true __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 16#L69true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 5#L795true assume !(0 != ~pumpRunning~0); 31#L795-2true assume !(0 != ~systemActive~0); 66#L802-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 48#L696true __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 12#L80true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 114#L80-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 76#L812true assume { :end_inline_timeShift } true; 73#L726-2true [2022-02-21 04:18:47,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:47,270 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:18:47,276 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:47,276 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983287919] [2022-02-21 04:18:47,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:47,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:47,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:47,384 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:47,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:47,450 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:47,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:47,453 INFO L85 PathProgramCache]: Analyzing trace with hash -295639861, now seen corresponding path program 1 times [2022-02-21 04:18:47,453 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:47,454 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990695201] [2022-02-21 04:18:47,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:47,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:47,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:47,552 INFO L290 TraceCheckUtils]: 0: Hoare triple {134#true} assume !false; {134#true} is VALID [2022-02-21 04:18:47,557 INFO L290 TraceCheckUtils]: 1: Hoare triple {134#true} assume test_~splverifierCounter~0#1 < 4; {134#true} is VALID [2022-02-21 04:18:47,557 INFO L290 TraceCheckUtils]: 2: Hoare triple {134#true} test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; {134#true} is VALID [2022-02-21 04:18:47,557 INFO L290 TraceCheckUtils]: 3: Hoare triple {134#true} assume !(0 != test_~tmp~5#1); {134#true} is VALID [2022-02-21 04:18:47,557 INFO L290 TraceCheckUtils]: 4: Hoare triple {134#true} test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; {134#true} is VALID [2022-02-21 04:18:47,557 INFO L290 TraceCheckUtils]: 5: Hoare triple {134#true} assume !(0 != test_~tmp___0~1#1); {134#true} is VALID [2022-02-21 04:18:47,558 INFO L290 TraceCheckUtils]: 6: Hoare triple {134#true} test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; {134#true} is VALID [2022-02-21 04:18:47,558 INFO L290 TraceCheckUtils]: 7: Hoare triple {134#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {136#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:47,559 INFO L290 TraceCheckUtils]: 8: Hoare triple {136#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {136#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:47,559 INFO L290 TraceCheckUtils]: 9: Hoare triple {136#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; {136#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:47,563 INFO L290 TraceCheckUtils]: 10: Hoare triple {136#(<= 1 ~systemActive~0)} __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; {136#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:47,563 INFO L290 TraceCheckUtils]: 11: Hoare triple {136#(<= 1 ~systemActive~0)} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {136#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:47,564 INFO L290 TraceCheckUtils]: 12: Hoare triple {136#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {136#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:47,564 INFO L290 TraceCheckUtils]: 13: Hoare triple {136#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {135#false} is VALID [2022-02-21 04:18:47,565 INFO L290 TraceCheckUtils]: 14: Hoare triple {135#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; {135#false} is VALID [2022-02-21 04:18:47,565 INFO L290 TraceCheckUtils]: 15: Hoare triple {135#false} __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; {135#false} is VALID [2022-02-21 04:18:47,565 INFO L290 TraceCheckUtils]: 16: Hoare triple {135#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); {135#false} is VALID [2022-02-21 04:18:47,565 INFO L290 TraceCheckUtils]: 17: Hoare triple {135#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {135#false} is VALID [2022-02-21 04:18:47,566 INFO L290 TraceCheckUtils]: 18: Hoare triple {135#false} assume { :end_inline_timeShift } true; {135#false} is VALID [2022-02-21 04:18:47,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:47,567 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:47,567 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990695201] [2022-02-21 04:18:47,568 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990695201] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:47,568 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:47,568 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:47,568 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918083395] [2022-02-21 04:18:47,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:47,585 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:47,586 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:47,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:47,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:47,618 INFO L87 Difference]: Start difference. First operand has 128 states, 127 states have (on average 1.3622047244094488) internal successors, (173), 127 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:47,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:47,814 INFO L93 Difference]: Finished difference Result 125 states and 160 transitions. [2022-02-21 04:18:47,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:47,816 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:47,838 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:47,845 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 160 transitions. [2022-02-21 04:18:47,856 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2022-02-21 04:18:47,862 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 115 states and 149 transitions. [2022-02-21 04:18:47,866 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 115 [2022-02-21 04:18:47,869 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 115 [2022-02-21 04:18:47,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 115 states and 149 transitions. [2022-02-21 04:18:47,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:47,870 INFO L681 BuchiCegarLoop]: Abstraction has 115 states and 149 transitions. [2022-02-21 04:18:47,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states and 149 transitions. [2022-02-21 04:18:47,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2022-02-21 04:18:47,900 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:47,901 INFO L82 GeneralOperation]: Start isEquivalent. First operand 115 states and 149 transitions. Second operand has 115 states, 115 states have (on average 1.2956521739130435) internal successors, (149), 114 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:47,902 INFO L74 IsIncluded]: Start isIncluded. First operand 115 states and 149 transitions. Second operand has 115 states, 115 states have (on average 1.2956521739130435) internal successors, (149), 114 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:47,904 INFO L87 Difference]: Start difference. First operand 115 states and 149 transitions. Second operand has 115 states, 115 states have (on average 1.2956521739130435) internal successors, (149), 114 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:47,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:47,909 INFO L93 Difference]: Finished difference Result 115 states and 149 transitions. [2022-02-21 04:18:47,909 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 149 transitions. [2022-02-21 04:18:47,910 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:47,910 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:47,911 INFO L74 IsIncluded]: Start isIncluded. First operand has 115 states, 115 states have (on average 1.2956521739130435) internal successors, (149), 114 states have internal predecessors, (149), 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 115 states and 149 transitions. [2022-02-21 04:18:47,911 INFO L87 Difference]: Start difference. First operand has 115 states, 115 states have (on average 1.2956521739130435) internal successors, (149), 114 states have internal predecessors, (149), 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 115 states and 149 transitions. [2022-02-21 04:18:47,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:47,915 INFO L93 Difference]: Finished difference Result 115 states and 149 transitions. [2022-02-21 04:18:47,916 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 149 transitions. [2022-02-21 04:18:47,916 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:47,916 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:47,917 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:47,917 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:47,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 115 states have (on average 1.2956521739130435) internal successors, (149), 114 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:47,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 149 transitions. [2022-02-21 04:18:47,922 INFO L704 BuchiCegarLoop]: Abstraction has 115 states and 149 transitions. [2022-02-21 04:18:47,922 INFO L587 BuchiCegarLoop]: Abstraction has 115 states and 149 transitions. [2022-02-21 04:18:47,922 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:47,922 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 115 states and 149 transitions. [2022-02-21 04:18:47,923 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2022-02-21 04:18:47,924 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:47,924 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:47,924 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:47,924 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 04:18:47,925 INFO L791 eck$LassoCheckResult]: Stem: 375#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 328#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret7#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 309#L238 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 310#L231 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 354#L246 main_#t~ret7#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1; 348#L193 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 283#L165 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 284#L59 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 357#L726-2 [2022-02-21 04:18:47,925 INFO L793 eck$LassoCheckResult]: Loop: 357#L726-2 assume !false; 288#L727 assume test_~splverifierCounter~0#1 < 4; 289#L728 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 321#L736 assume !(0 != test_~tmp~5#1); 313#L736-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 340#L746 assume !(0 != test_~tmp___0~1#1); 263#L746-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 358#L756 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 307#L962 assume { :end_inline_startSystem } true; 308#L764-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 365#L898 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 287#L69 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 264#L795 assume !(0 != ~pumpRunning~0); 266#L795-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 314#L827 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 285#L819-1 assume { :end_inline_processEnvironment__wrappee__base } true; 286#L827-1 assume { :end_inline_processEnvironment } true; 353#L802-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 337#L696 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 278#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 280#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 361#L812 assume { :end_inline_timeShift } true; 357#L726-2 [2022-02-21 04:18:47,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:47,925 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:18:47,926 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:47,926 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020156592] [2022-02-21 04:18:47,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:47,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:47,957 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:47,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:47,979 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:47,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:47,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1305519920, now seen corresponding path program 1 times [2022-02-21 04:18:47,981 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:47,981 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930085119] [2022-02-21 04:18:47,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:47,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:48,000 INFO L290 TraceCheckUtils]: 0: Hoare triple {612#true} assume !false; {612#true} is VALID [2022-02-21 04:18:48,001 INFO L290 TraceCheckUtils]: 1: Hoare triple {612#true} assume test_~splverifierCounter~0#1 < 4; {612#true} is VALID [2022-02-21 04:18:48,001 INFO L290 TraceCheckUtils]: 2: Hoare triple {612#true} test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; {612#true} is VALID [2022-02-21 04:18:48,001 INFO L290 TraceCheckUtils]: 3: Hoare triple {612#true} assume !(0 != test_~tmp~5#1); {612#true} is VALID [2022-02-21 04:18:48,002 INFO L290 TraceCheckUtils]: 4: Hoare triple {612#true} test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; {612#true} is VALID [2022-02-21 04:18:48,002 INFO L290 TraceCheckUtils]: 5: Hoare triple {612#true} assume !(0 != test_~tmp___0~1#1); {612#true} is VALID [2022-02-21 04:18:48,002 INFO L290 TraceCheckUtils]: 6: Hoare triple {612#true} test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; {612#true} is VALID [2022-02-21 04:18:48,002 INFO L290 TraceCheckUtils]: 7: Hoare triple {612#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {612#true} is VALID [2022-02-21 04:18:48,003 INFO L290 TraceCheckUtils]: 8: Hoare triple {612#true} assume { :end_inline_startSystem } true; {612#true} is VALID [2022-02-21 04:18:48,003 INFO L290 TraceCheckUtils]: 9: Hoare triple {612#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; {612#true} is VALID [2022-02-21 04:18:48,003 INFO L290 TraceCheckUtils]: 10: Hoare triple {612#true} __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; {612#true} is VALID [2022-02-21 04:18:48,003 INFO L290 TraceCheckUtils]: 11: Hoare triple {612#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {612#true} is VALID [2022-02-21 04:18:48,004 INFO L290 TraceCheckUtils]: 12: Hoare triple {612#true} assume !(0 != ~pumpRunning~0); {614#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:48,004 INFO L290 TraceCheckUtils]: 13: Hoare triple {614#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; {614#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:48,005 INFO L290 TraceCheckUtils]: 14: Hoare triple {614#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {613#false} is VALID [2022-02-21 04:18:48,005 INFO L290 TraceCheckUtils]: 15: Hoare triple {613#false} assume { :end_inline_processEnvironment__wrappee__base } true; {613#false} is VALID [2022-02-21 04:18:48,005 INFO L290 TraceCheckUtils]: 16: Hoare triple {613#false} assume { :end_inline_processEnvironment } true; {613#false} is VALID [2022-02-21 04:18:48,006 INFO L290 TraceCheckUtils]: 17: Hoare triple {613#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; {613#false} is VALID [2022-02-21 04:18:48,006 INFO L290 TraceCheckUtils]: 18: Hoare triple {613#false} __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; {613#false} is VALID [2022-02-21 04:18:48,006 INFO L290 TraceCheckUtils]: 19: Hoare triple {613#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); {613#false} is VALID [2022-02-21 04:18:48,006 INFO L290 TraceCheckUtils]: 20: Hoare triple {613#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {613#false} is VALID [2022-02-21 04:18:48,006 INFO L290 TraceCheckUtils]: 21: Hoare triple {613#false} assume { :end_inline_timeShift } true; {613#false} is VALID [2022-02-21 04:18:48,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:48,007 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:48,007 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930085119] [2022-02-21 04:18:48,007 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930085119] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:48,008 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:48,008 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:48,008 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067049469] [2022-02-21 04:18:48,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:48,009 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:48,009 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:48,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:48,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:48,010 INFO L87 Difference]: Start difference. First operand 115 states and 149 transitions. cyclomatic complexity: 36 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 04:18:48,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:48,215 INFO L93 Difference]: Finished difference Result 180 states and 227 transitions. [2022-02-21 04:18:48,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:48,215 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 04:18:48,233 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 04:18:48,234 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 180 states and 227 transitions. [2022-02-21 04:18:48,245 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2022-02-21 04:18:48,253 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 180 states to 180 states and 227 transitions. [2022-02-21 04:18:48,253 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 180 [2022-02-21 04:18:48,254 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 180 [2022-02-21 04:18:48,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 180 states and 227 transitions. [2022-02-21 04:18:48,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:48,257 INFO L681 BuchiCegarLoop]: Abstraction has 180 states and 227 transitions. [2022-02-21 04:18:48,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states and 227 transitions. [2022-02-21 04:18:48,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2022-02-21 04:18:48,276 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:48,276 INFO L82 GeneralOperation]: Start isEquivalent. First operand 180 states and 227 transitions. Second operand has 180 states, 180 states have (on average 1.261111111111111) internal successors, (227), 179 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:48,277 INFO L74 IsIncluded]: Start isIncluded. First operand 180 states and 227 transitions. Second operand has 180 states, 180 states have (on average 1.261111111111111) internal successors, (227), 179 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:48,277 INFO L87 Difference]: Start difference. First operand 180 states and 227 transitions. Second operand has 180 states, 180 states have (on average 1.261111111111111) internal successors, (227), 179 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:48,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:48,283 INFO L93 Difference]: Finished difference Result 180 states and 227 transitions. [2022-02-21 04:18:48,283 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 227 transitions. [2022-02-21 04:18:48,290 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:48,290 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:48,291 INFO L74 IsIncluded]: Start isIncluded. First operand has 180 states, 180 states have (on average 1.261111111111111) internal successors, (227), 179 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 180 states and 227 transitions. [2022-02-21 04:18:48,291 INFO L87 Difference]: Start difference. First operand has 180 states, 180 states have (on average 1.261111111111111) internal successors, (227), 179 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 180 states and 227 transitions. [2022-02-21 04:18:48,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:48,297 INFO L93 Difference]: Finished difference Result 180 states and 227 transitions. [2022-02-21 04:18:48,297 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 227 transitions. [2022-02-21 04:18:48,298 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:48,298 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:48,298 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:48,298 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:48,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 180 states have (on average 1.261111111111111) internal successors, (227), 179 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:48,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 227 transitions. [2022-02-21 04:18:48,304 INFO L704 BuchiCegarLoop]: Abstraction has 180 states and 227 transitions. [2022-02-21 04:18:48,304 INFO L587 BuchiCegarLoop]: Abstraction has 180 states and 227 transitions. [2022-02-21 04:18:48,304 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:48,304 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 180 states and 227 transitions. [2022-02-21 04:18:48,306 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2022-02-21 04:18:48,306 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:48,306 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:48,307 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:48,308 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] [2022-02-21 04:18:48,308 INFO L791 eck$LassoCheckResult]: Stem: 914#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 860#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret7#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 841#L238 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 842#L231 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 891#L246 main_#t~ret7#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1; 885#L193 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 815#L165 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 816#L59 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 895#L726-2 [2022-02-21 04:18:48,308 INFO L793 eck$LassoCheckResult]: Loop: 895#L726-2 assume !false; 822#L727 assume test_~splverifierCounter~0#1 < 4; 823#L728 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 853#L736 assume !(0 != test_~tmp~5#1); 846#L736-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 875#L746 assume !(0 != test_~tmp___0~1#1); 796#L746-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 896#L756 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 897#L764 assume 0 != test_~tmp___1~0#1; 840#L764-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 903#L898 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 819#L69 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 797#L795 assume !(0 != ~pumpRunning~0); 798#L795-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 844#L827 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret52#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 883#L704 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 884#L709 isHighWaterLevel_#t~ret52#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret52#1;havoc isHighWaterLevel_#t~ret52#1; 876#L947 assume !(0 != isHighWaterLevel_~tmp~8#1);isHighWaterLevel_~tmp___0~2#1 := 1; 877#L947-2 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 909#L953 processEnvironment_#t~ret41#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~6#1 := processEnvironment_#t~ret41#1;havoc processEnvironment_#t~ret41#1; 904#L831 assume !(0 != processEnvironment_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 871#L819 assume { :end_inline_processEnvironment__wrappee__base } true; 872#L827-1 assume { :end_inline_processEnvironment } true; 890#L802-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 870#L696 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 812#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 814#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 899#L812 assume { :end_inline_timeShift } true; 895#L726-2 [2022-02-21 04:18:48,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:48,310 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:18:48,310 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:48,310 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261855403] [2022-02-21 04:18:48,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:48,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:48,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:48,348 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:48,375 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:48,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:48,376 INFO L85 PathProgramCache]: Analyzing trace with hash 32814265, now seen corresponding path program 1 times [2022-02-21 04:18:48,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:48,376 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985465744] [2022-02-21 04:18:48,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:48,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:48,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:48,411 INFO L290 TraceCheckUtils]: 0: Hoare triple {1340#true} assume !false; {1340#true} is VALID [2022-02-21 04:18:48,411 INFO L290 TraceCheckUtils]: 1: Hoare triple {1340#true} assume test_~splverifierCounter~0#1 < 4; {1340#true} is VALID [2022-02-21 04:18:48,411 INFO L290 TraceCheckUtils]: 2: Hoare triple {1340#true} test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; {1340#true} is VALID [2022-02-21 04:18:48,411 INFO L290 TraceCheckUtils]: 3: Hoare triple {1340#true} assume !(0 != test_~tmp~5#1); {1340#true} is VALID [2022-02-21 04:18:48,411 INFO L290 TraceCheckUtils]: 4: Hoare triple {1340#true} test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; {1340#true} is VALID [2022-02-21 04:18:48,412 INFO L290 TraceCheckUtils]: 5: Hoare triple {1340#true} assume !(0 != test_~tmp___0~1#1); {1340#true} is VALID [2022-02-21 04:18:48,412 INFO L290 TraceCheckUtils]: 6: Hoare triple {1340#true} test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; {1340#true} is VALID [2022-02-21 04:18:48,412 INFO L290 TraceCheckUtils]: 7: Hoare triple {1340#true} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; {1340#true} is VALID [2022-02-21 04:18:48,415 INFO L290 TraceCheckUtils]: 8: Hoare triple {1340#true} assume 0 != test_~tmp___1~0#1; {1340#true} is VALID [2022-02-21 04:18:48,415 INFO L290 TraceCheckUtils]: 9: Hoare triple {1340#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; {1340#true} is VALID [2022-02-21 04:18:48,415 INFO L290 TraceCheckUtils]: 10: Hoare triple {1340#true} __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; {1340#true} is VALID [2022-02-21 04:18:48,417 INFO L290 TraceCheckUtils]: 11: Hoare triple {1340#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {1340#true} is VALID [2022-02-21 04:18:48,417 INFO L290 TraceCheckUtils]: 12: Hoare triple {1340#true} assume !(0 != ~pumpRunning~0); {1340#true} is VALID [2022-02-21 04:18:48,417 INFO L290 TraceCheckUtils]: 13: Hoare triple {1340#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; {1340#true} is VALID [2022-02-21 04:18:48,418 INFO L290 TraceCheckUtils]: 14: Hoare triple {1340#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret52#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; {1340#true} is VALID [2022-02-21 04:18:48,418 INFO L290 TraceCheckUtils]: 15: Hoare triple {1340#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; {1342#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 1)} is VALID [2022-02-21 04:18:48,419 INFO L290 TraceCheckUtils]: 16: Hoare triple {1342#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 1)} isHighWaterLevel_#t~ret52#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret52#1;havoc isHighWaterLevel_#t~ret52#1; {1343#(= |ULTIMATE.start_isHighWaterLevel_~tmp~8#1| 1)} is VALID [2022-02-21 04:18:48,419 INFO L290 TraceCheckUtils]: 17: Hoare triple {1343#(= |ULTIMATE.start_isHighWaterLevel_~tmp~8#1| 1)} assume !(0 != isHighWaterLevel_~tmp~8#1);isHighWaterLevel_~tmp___0~2#1 := 1; {1341#false} is VALID [2022-02-21 04:18:48,420 INFO L290 TraceCheckUtils]: 18: Hoare triple {1341#false} isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; {1341#false} is VALID [2022-02-21 04:18:48,421 INFO L290 TraceCheckUtils]: 19: Hoare triple {1341#false} processEnvironment_#t~ret41#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~6#1 := processEnvironment_#t~ret41#1;havoc processEnvironment_#t~ret41#1; {1341#false} is VALID [2022-02-21 04:18:48,421 INFO L290 TraceCheckUtils]: 20: Hoare triple {1341#false} assume !(0 != processEnvironment_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {1341#false} is VALID [2022-02-21 04:18:48,421 INFO L290 TraceCheckUtils]: 21: Hoare triple {1341#false} assume { :end_inline_processEnvironment__wrappee__base } true; {1341#false} is VALID [2022-02-21 04:18:48,421 INFO L290 TraceCheckUtils]: 22: Hoare triple {1341#false} assume { :end_inline_processEnvironment } true; {1341#false} is VALID [2022-02-21 04:18:48,421 INFO L290 TraceCheckUtils]: 23: Hoare triple {1341#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; {1341#false} is VALID [2022-02-21 04:18:48,422 INFO L290 TraceCheckUtils]: 24: Hoare triple {1341#false} __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; {1341#false} is VALID [2022-02-21 04:18:48,422 INFO L290 TraceCheckUtils]: 25: Hoare triple {1341#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); {1341#false} is VALID [2022-02-21 04:18:48,422 INFO L290 TraceCheckUtils]: 26: Hoare triple {1341#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {1341#false} is VALID [2022-02-21 04:18:48,423 INFO L290 TraceCheckUtils]: 27: Hoare triple {1341#false} assume { :end_inline_timeShift } true; {1341#false} is VALID [2022-02-21 04:18:48,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:48,423 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:48,423 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985465744] [2022-02-21 04:18:48,424 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985465744] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:48,424 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:48,424 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:18:48,424 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779329308] [2022-02-21 04:18:48,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:48,424 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:48,425 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:48,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-21 04:18:48,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-21 04:18:48,426 INFO L87 Difference]: Start difference. First operand 180 states and 227 transitions. cyclomatic complexity: 49 Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:48,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:48,734 INFO L93 Difference]: Finished difference Result 349 states and 437 transitions. [2022-02-21 04:18:48,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-21 04:18:48,734 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:48,755 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:48,757 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 349 states and 437 transitions. [2022-02-21 04:18:48,769 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 250 [2022-02-21 04:18:48,779 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 349 states to 349 states and 437 transitions. [2022-02-21 04:18:48,779 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 349 [2022-02-21 04:18:48,780 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 349 [2022-02-21 04:18:48,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 349 states and 437 transitions. [2022-02-21 04:18:48,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:48,781 INFO L681 BuchiCegarLoop]: Abstraction has 349 states and 437 transitions. [2022-02-21 04:18:48,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states and 437 transitions. [2022-02-21 04:18:48,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 186. [2022-02-21 04:18:48,798 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:48,799 INFO L82 GeneralOperation]: Start isEquivalent. First operand 349 states and 437 transitions. Second operand has 186 states, 186 states have (on average 1.2526881720430108) internal successors, (233), 185 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:48,799 INFO L74 IsIncluded]: Start isIncluded. First operand 349 states and 437 transitions. Second operand has 186 states, 186 states have (on average 1.2526881720430108) internal successors, (233), 185 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:48,800 INFO L87 Difference]: Start difference. First operand 349 states and 437 transitions. Second operand has 186 states, 186 states have (on average 1.2526881720430108) internal successors, (233), 185 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:48,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:48,825 INFO L93 Difference]: Finished difference Result 349 states and 437 transitions. [2022-02-21 04:18:48,826 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 437 transitions. [2022-02-21 04:18:48,826 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:48,826 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:48,827 INFO L74 IsIncluded]: Start isIncluded. First operand has 186 states, 186 states have (on average 1.2526881720430108) internal successors, (233), 185 states have internal predecessors, (233), 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 349 states and 437 transitions. [2022-02-21 04:18:48,828 INFO L87 Difference]: Start difference. First operand has 186 states, 186 states have (on average 1.2526881720430108) internal successors, (233), 185 states have internal predecessors, (233), 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 349 states and 437 transitions. [2022-02-21 04:18:48,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:48,839 INFO L93 Difference]: Finished difference Result 349 states and 437 transitions. [2022-02-21 04:18:48,839 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 437 transitions. [2022-02-21 04:18:48,840 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:48,840 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:48,840 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:48,840 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:48,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 186 states have (on average 1.2526881720430108) internal successors, (233), 185 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:48,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 233 transitions. [2022-02-21 04:18:48,846 INFO L704 BuchiCegarLoop]: Abstraction has 186 states and 233 transitions. [2022-02-21 04:18:48,847 INFO L587 BuchiCegarLoop]: Abstraction has 186 states and 233 transitions. [2022-02-21 04:18:48,847 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:18:48,847 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 186 states and 233 transitions. [2022-02-21 04:18:48,848 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 130 [2022-02-21 04:18:48,848 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:48,848 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:48,850 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:48,850 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] [2022-02-21 04:18:48,850 INFO L791 eck$LassoCheckResult]: Stem: 1821#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1762#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret7#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 1743#L238 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1744#L231 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 1794#L246 main_#t~ret7#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1; 1789#L193 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 1716#L165 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1717#L59 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1799#L726-2 [2022-02-21 04:18:48,850 INFO L793 eck$LassoCheckResult]: Loop: 1799#L726-2 assume !false; 1721#L727 assume test_~splverifierCounter~0#1 < 4; 1722#L728 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 1757#L736 assume !(0 != test_~tmp~5#1); 1746#L736-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 1778#L746 assume !(0 != test_~tmp___0~1#1); 1697#L746-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 1800#L756 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 1801#L764 assume 0 != test_~tmp___1~0#1; 1741#L764-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 1808#L898 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 1720#L69 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1700#L795 assume !(0 != ~pumpRunning~0); 1701#L795-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 1824#L827 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret52#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1786#L704 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1787#L709 isHighWaterLevel_#t~ret52#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret52#1;havoc isHighWaterLevel_#t~ret52#1; 1779#L947 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~2#1 := 0; 1780#L947-2 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 1814#L953 processEnvironment_#t~ret41#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~6#1 := processEnvironment_#t~ret41#1;havoc processEnvironment_#t~ret41#1; 1810#L831 assume !(0 != processEnvironment_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1776#L819 assume { :end_inline_processEnvironment__wrappee__base } true; 1777#L827-1 assume { :end_inline_processEnvironment } true; 1793#L802-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 1773#L696 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 1713#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 1715#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1803#L812 assume { :end_inline_timeShift } true; 1799#L726-2 [2022-02-21 04:18:48,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:48,851 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-02-21 04:18:48,851 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:48,852 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611621507] [2022-02-21 04:18:48,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:48,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:48,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:48,870 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:48,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:48,888 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:48,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:48,889 INFO L85 PathProgramCache]: Analyzing trace with hash -668250313, now seen corresponding path program 1 times [2022-02-21 04:18:48,889 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:48,890 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367688888] [2022-02-21 04:18:48,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:48,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:48,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:48,929 INFO L290 TraceCheckUtils]: 0: Hoare triple {2585#true} assume !false; {2585#true} is VALID [2022-02-21 04:18:48,930 INFO L290 TraceCheckUtils]: 1: Hoare triple {2585#true} assume test_~splverifierCounter~0#1 < 4; {2585#true} is VALID [2022-02-21 04:18:48,930 INFO L290 TraceCheckUtils]: 2: Hoare triple {2585#true} test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; {2585#true} is VALID [2022-02-21 04:18:48,930 INFO L290 TraceCheckUtils]: 3: Hoare triple {2585#true} assume !(0 != test_~tmp~5#1); {2585#true} is VALID [2022-02-21 04:18:48,930 INFO L290 TraceCheckUtils]: 4: Hoare triple {2585#true} test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; {2585#true} is VALID [2022-02-21 04:18:48,930 INFO L290 TraceCheckUtils]: 5: Hoare triple {2585#true} assume !(0 != test_~tmp___0~1#1); {2585#true} is VALID [2022-02-21 04:18:48,930 INFO L290 TraceCheckUtils]: 6: Hoare triple {2585#true} test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; {2585#true} is VALID [2022-02-21 04:18:48,931 INFO L290 TraceCheckUtils]: 7: Hoare triple {2585#true} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; {2585#true} is VALID [2022-02-21 04:18:48,931 INFO L290 TraceCheckUtils]: 8: Hoare triple {2585#true} assume 0 != test_~tmp___1~0#1; {2585#true} is VALID [2022-02-21 04:18:48,931 INFO L290 TraceCheckUtils]: 9: Hoare triple {2585#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; {2585#true} is VALID [2022-02-21 04:18:48,931 INFO L290 TraceCheckUtils]: 10: Hoare triple {2585#true} __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; {2585#true} is VALID [2022-02-21 04:18:48,931 INFO L290 TraceCheckUtils]: 11: Hoare triple {2585#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {2585#true} is VALID [2022-02-21 04:18:48,931 INFO L290 TraceCheckUtils]: 12: Hoare triple {2585#true} assume !(0 != ~pumpRunning~0); {2585#true} is VALID [2022-02-21 04:18:48,932 INFO L290 TraceCheckUtils]: 13: Hoare triple {2585#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; {2585#true} is VALID [2022-02-21 04:18:48,932 INFO L290 TraceCheckUtils]: 14: Hoare triple {2585#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret52#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; {2585#true} is VALID [2022-02-21 04:18:48,935 INFO L290 TraceCheckUtils]: 15: Hoare triple {2585#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; {2587#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:48,935 INFO L290 TraceCheckUtils]: 16: Hoare triple {2587#(<= ~waterLevel~0 1)} isHighWaterLevel_#t~ret52#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret52#1;havoc isHighWaterLevel_#t~ret52#1; {2587#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:48,936 INFO L290 TraceCheckUtils]: 17: Hoare triple {2587#(<= ~waterLevel~0 1)} assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~2#1 := 0; {2587#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:48,936 INFO L290 TraceCheckUtils]: 18: Hoare triple {2587#(<= ~waterLevel~0 1)} isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; {2587#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:48,937 INFO L290 TraceCheckUtils]: 19: Hoare triple {2587#(<= ~waterLevel~0 1)} processEnvironment_#t~ret41#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~6#1 := processEnvironment_#t~ret41#1;havoc processEnvironment_#t~ret41#1; {2587#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:48,937 INFO L290 TraceCheckUtils]: 20: Hoare triple {2587#(<= ~waterLevel~0 1)} assume !(0 != processEnvironment_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {2587#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:48,938 INFO L290 TraceCheckUtils]: 21: Hoare triple {2587#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__base } true; {2587#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:48,938 INFO L290 TraceCheckUtils]: 22: Hoare triple {2587#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment } true; {2587#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:48,942 INFO L290 TraceCheckUtils]: 23: Hoare triple {2587#(<= ~waterLevel~0 1)} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; {2588#(<= |ULTIMATE.start_getWaterLevel_#res#1| 1)} is VALID [2022-02-21 04:18:48,943 INFO L290 TraceCheckUtils]: 24: Hoare triple {2588#(<= |ULTIMATE.start_getWaterLevel_#res#1| 1)} __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; {2589#(<= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~0#1| 1)} is VALID [2022-02-21 04:18:48,943 INFO L290 TraceCheckUtils]: 25: Hoare triple {2589#(<= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~0#1| 1)} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); {2586#false} is VALID [2022-02-21 04:18:48,943 INFO L290 TraceCheckUtils]: 26: Hoare triple {2586#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {2586#false} is VALID [2022-02-21 04:18:48,943 INFO L290 TraceCheckUtils]: 27: Hoare triple {2586#false} assume { :end_inline_timeShift } true; {2586#false} is VALID [2022-02-21 04:18:48,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:48,944 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:48,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367688888] [2022-02-21 04:18:48,944 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367688888] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:48,944 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:48,944 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:48,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389566032] [2022-02-21 04:18:48,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:48,945 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:48,945 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:48,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:48,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:48,946 INFO L87 Difference]: Start difference. First operand 186 states and 233 transitions. cyclomatic complexity: 49 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:49,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:49,526 INFO L93 Difference]: Finished difference Result 488 states and 598 transitions. [2022-02-21 04:18:49,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:49,526 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:49,553 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:49,553 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 488 states and 598 transitions. [2022-02-21 04:18:49,569 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 321 [2022-02-21 04:18:49,583 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 488 states to 488 states and 598 transitions. [2022-02-21 04:18:49,584 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 488 [2022-02-21 04:18:49,584 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 488 [2022-02-21 04:18:49,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 488 states and 598 transitions. [2022-02-21 04:18:49,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:49,585 INFO L681 BuchiCegarLoop]: Abstraction has 488 states and 598 transitions. [2022-02-21 04:18:49,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states and 598 transitions. [2022-02-21 04:18:49,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 350. [2022-02-21 04:18:49,591 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:49,592 INFO L82 GeneralOperation]: Start isEquivalent. First operand 488 states and 598 transitions. Second operand has 350 states, 350 states have (on average 1.2285714285714286) internal successors, (430), 349 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:49,593 INFO L74 IsIncluded]: Start isIncluded. First operand 488 states and 598 transitions. Second operand has 350 states, 350 states have (on average 1.2285714285714286) internal successors, (430), 349 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:49,594 INFO L87 Difference]: Start difference. First operand 488 states and 598 transitions. Second operand has 350 states, 350 states have (on average 1.2285714285714286) internal successors, (430), 349 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:49,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:49,608 INFO L93 Difference]: Finished difference Result 488 states and 598 transitions. [2022-02-21 04:18:49,608 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 598 transitions. [2022-02-21 04:18:49,609 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:49,609 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:49,610 INFO L74 IsIncluded]: Start isIncluded. First operand has 350 states, 350 states have (on average 1.2285714285714286) internal successors, (430), 349 states have internal predecessors, (430), 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 488 states and 598 transitions. [2022-02-21 04:18:49,611 INFO L87 Difference]: Start difference. First operand has 350 states, 350 states have (on average 1.2285714285714286) internal successors, (430), 349 states have internal predecessors, (430), 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 488 states and 598 transitions. [2022-02-21 04:18:49,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:49,625 INFO L93 Difference]: Finished difference Result 488 states and 598 transitions. [2022-02-21 04:18:49,625 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 598 transitions. [2022-02-21 04:18:49,626 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:49,626 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:49,626 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:49,626 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:49,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 350 states have (on average 1.2285714285714286) internal successors, (430), 349 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:49,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 430 transitions. [2022-02-21 04:18:49,636 INFO L704 BuchiCegarLoop]: Abstraction has 350 states and 430 transitions. [2022-02-21 04:18:49,636 INFO L587 BuchiCegarLoop]: Abstraction has 350 states and 430 transitions. [2022-02-21 04:18:49,636 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2022-02-21 04:18:49,636 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 350 states and 430 transitions. [2022-02-21 04:18:49,638 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 250 [2022-02-21 04:18:49,638 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:49,638 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:49,638 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:49,638 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, 1] [2022-02-21 04:18:49,639 INFO L791 eck$LassoCheckResult]: Stem: 3212#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 3153#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret7#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 3131#L238 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3132#L231 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 3185#L246 main_#t~ret7#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1; 3179#L193 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 3106#L165 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 3107#L59 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3190#L726-2 [2022-02-21 04:18:49,639 INFO L793 eck$LassoCheckResult]: Loop: 3190#L726-2 assume !false; 3111#L727 assume test_~splverifierCounter~0#1 < 4; 3112#L728 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 3145#L736 assume !(0 != test_~tmp~5#1); 3146#L736-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 3168#L746 assume !(0 != test_~tmp___0~1#1); 3087#L746-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 3191#L756 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 3192#L764 assume 0 != test_~tmp___1~0#1; 3130#L764-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 3198#L898 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 3110#L69 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 3088#L795 assume !(0 != ~pumpRunning~0); 3089#L795-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret41#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 3136#L827 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret52#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 3177#L704 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 3178#L709 isHighWaterLevel_#t~ret52#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret52#1;havoc isHighWaterLevel_#t~ret52#1; 3383#L947 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~2#1 := 0; 3382#L947-2 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 3380#L953 processEnvironment_#t~ret41#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~6#1 := processEnvironment_#t~ret41#1;havoc processEnvironment_#t~ret41#1; 3376#L831 assume !(0 != processEnvironment_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3375#L819 assume { :end_inline_processEnvironment__wrappee__base } true; 3373#L827-1 assume { :end_inline_processEnvironment } true; 3372#L802-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 3371#L696 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 3370#L80 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 3369#L898-1 __utac_acc__Specification5_spec__3_#t~ret6#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret6#1;havoc __utac_acc__Specification5_spec__3_#t~ret6#1; 3368#L84 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 3366#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 3194#L812 assume { :end_inline_timeShift } true; 3190#L726-2 [2022-02-21 04:18:49,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:49,640 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2022-02-21 04:18:49,640 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:49,640 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487425757] [2022-02-21 04:18:49,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:49,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:49,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:49,650 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:49,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:49,659 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:49,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:49,660 INFO L85 PathProgramCache]: Analyzing trace with hash 2037445554, now seen corresponding path program 1 times [2022-02-21 04:18:49,660 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:49,660 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579288141] [2022-02-21 04:18:49,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:49,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:49,667 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:49,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:49,674 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:49,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:49,675 INFO L85 PathProgramCache]: Analyzing trace with hash 71588059, now seen corresponding path program 1 times [2022-02-21 04:18:49,675 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:49,675 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616790634] [2022-02-21 04:18:49,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:49,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:49,689 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:49,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:49,704 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:53,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:53 BoogieIcfgContainer [2022-02-21 04:18:53,061 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:53,061 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:53,062 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:53,062 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:53,062 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:47" (3/4) ... [2022-02-21 04:18:53,064 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:53,108 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:53,109 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:53,110 INFO L158 Benchmark]: Toolchain (without parser) took 7187.37ms. Allocated memory was 86.0MB in the beginning and 151.0MB in the end (delta: 65.0MB). Free memory was 53.0MB in the beginning and 111.4MB in the end (delta: -58.3MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2022-02-21 04:18:53,110 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 86.0MB. Free memory was 41.5MB in the beginning and 41.4MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:53,111 INFO L158 Benchmark]: CACSL2BoogieTranslator took 500.81ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 52.9MB in the beginning and 69.3MB in the end (delta: -16.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:18:53,111 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.63ms. Allocated memory is still 104.9MB. Free memory was 69.3MB in the beginning and 65.4MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:53,111 INFO L158 Benchmark]: Boogie Preprocessor took 41.18ms. Allocated memory is still 104.9MB. Free memory was 65.4MB in the beginning and 63.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:53,112 INFO L158 Benchmark]: RCFGBuilder took 572.25ms. Allocated memory is still 104.9MB. Free memory was 63.3MB in the beginning and 67.7MB in the end (delta: -4.4MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2022-02-21 04:18:53,112 INFO L158 Benchmark]: BuchiAutomizer took 5929.35ms. Allocated memory was 104.9MB in the beginning and 151.0MB in the end (delta: 46.1MB). Free memory was 67.2MB in the beginning and 114.5MB in the end (delta: -47.3MB). Peak memory consumption was 68.6MB. Max. memory is 16.1GB. [2022-02-21 04:18:53,112 INFO L158 Benchmark]: Witness Printer took 47.54ms. Allocated memory is still 151.0MB. Free memory was 114.5MB in the beginning and 111.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:53,114 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 0.12ms. Allocated memory is still 86.0MB. Free memory was 41.5MB in the beginning and 41.4MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 500.81ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 52.9MB in the beginning and 69.3MB in the end (delta: -16.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.63ms. Allocated memory is still 104.9MB. Free memory was 69.3MB in the beginning and 65.4MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.18ms. Allocated memory is still 104.9MB. Free memory was 65.4MB in the beginning and 63.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 572.25ms. Allocated memory is still 104.9MB. Free memory was 63.3MB in the beginning and 67.7MB in the end (delta: -4.4MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 5929.35ms. Allocated memory was 104.9MB in the beginning and 151.0MB in the end (delta: 46.1MB). Free memory was 67.2MB in the beginning and 114.5MB in the end (delta: -47.3MB). Peak memory consumption was 68.6MB. Max. memory is 16.1GB. * Witness Printer took 47.54ms. Allocated memory is still 151.0MB. Free memory was 114.5MB in the beginning and 111.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 5 locations. The remainder module has 350 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.8s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 4.0s. Construction of modules took 0.1s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 301 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 350 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 999 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 999 mSDsluCounter, 1507 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 815 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 129 IncrementalHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 692 mSDtfsCounter, 129 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT0 conc0 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: 726]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, retValue_acc=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@393b191e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79f8a52b=0, methaneLevelCritical=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e634418=0, retValue_acc=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18caa84e=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a09cfc7=0, retValue_acc=0, \result=1, \result=1, retValue_acc=1, tmp=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@263831cc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31b22ba7=29, tmp___2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@203e303a=0, \result=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, \result=0, tmp=1, tmp___0=0, head=0, \result=1, tmp___1=29, NULL=0, waterLevel=1, systemActive=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4165757f=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7808621b=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 726]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int switchedOnBeforeTS ; [L102] int cleanupTimeShifts = 4; [L420] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L621] int waterLevel = 1; [L622] int methaneLevelCritical = 0; [L785] int pumpRunning = 0; [L786] int systemActive = 1; [L184] int retValue_acc ; [L185] int tmp ; [L189] FCALL select_helpers() [L190] FCALL select_features() [L191] CALL, EXPR valid_product() [L242] int retValue_acc ; [L245] retValue_acc = 1 [L246] return (retValue_acc); [L191] RET, EXPR valid_product() [L191] tmp = valid_product() [L193] COND TRUE \read(tmp) [L195] FCALL setup() [L196] CALL runTest() [L174] CALL __utac_acc__Specification5_spec__1() [L58] switchedOnBeforeTS = 0 [L174] RET __utac_acc__Specification5_spec__1() [L175] CALL test() [L717] int splverifierCounter ; [L718] int tmp ; [L719] int tmp___0 ; [L720] int tmp___1 ; [L721] int tmp___2 ; [L724] splverifierCounter = 0 Loop: [L726] COND TRUE 1 [L728] COND TRUE splverifierCounter < 4 [L734] tmp = __VERIFIER_nondet_int() [L736] COND FALSE !(\read(tmp)) [L744] tmp___0 = __VERIFIER_nondet_int() [L746] COND FALSE !(\read(tmp___0)) [L754] tmp___2 = __VERIFIER_nondet_int() [L756] COND FALSE !(\read(tmp___2)) [L762] tmp___1 = __VERIFIER_nondet_int() [L764] COND TRUE \read(tmp___1) [L771] CALL timeShift() [L793] CALL __utac_acc__Specification5_spec__2() [L67] CALL, EXPR isPumpRunning() [L894] int retValue_acc ; [L897] retValue_acc = pumpRunning [L898] return (retValue_acc); [L67] RET, EXPR isPumpRunning() [L67] switchedOnBeforeTS = isPumpRunning() [L793] RET __utac_acc__Specification5_spec__2() [L795] COND FALSE !(\read(pumpRunning)) [L802] COND TRUE \read(systemActive) [L804] CALL processEnvironment() [L824] int tmp ; [L827] COND TRUE ! pumpRunning [L829] CALL, EXPR isHighWaterLevel() [L939] int retValue_acc ; [L940] int tmp ; [L941] int tmp___0 ; [L945] CALL, EXPR isHighWaterSensorDry() [L701] int retValue_acc ; [L704] COND TRUE waterLevel < 2 [L705] retValue_acc = 1 [L706] return (retValue_acc); [L945] RET, EXPR isHighWaterSensorDry() [L945] tmp = isHighWaterSensorDry() [L947] COND TRUE \read(tmp) [L948] tmp___0 = 0 [L952] retValue_acc = tmp___0 [L953] return (retValue_acc); [L829] RET, EXPR isHighWaterLevel() [L829] tmp = isHighWaterLevel() [L831] COND FALSE !(\read(tmp)) [L837] FCALL processEnvironment__wrappee__base() [L804] RET processEnvironment() [L810] CALL __utac_acc__Specification5_spec__3() [L73] int tmp ; [L74] int tmp___0 ; [L78] CALL, EXPR getWaterLevel() [L692] int retValue_acc ; [L695] retValue_acc = waterLevel [L696] return (retValue_acc); [L78] RET, EXPR getWaterLevel() [L78] tmp = getWaterLevel() [L80] COND TRUE tmp != 2 [L82] CALL, EXPR isPumpRunning() [L894] int retValue_acc ; [L897] retValue_acc = pumpRunning [L898] return (retValue_acc); [L82] RET, EXPR isPumpRunning() [L82] tmp___0 = isPumpRunning() [L84] COND FALSE !(\read(tmp___0)) [L810] RET __utac_acc__Specification5_spec__3() [L771] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:53,163 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)