./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product18.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_product18.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 d15523fb5fa7fb710c0ce810eaa6ccfc4e6cdf50f754e30078d83eba1456e275 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:27,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:27,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:27,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:27,373 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:27,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:27,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:27,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:27,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:27,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:27,385 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:27,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:27,386 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:27,388 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:27,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:27,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:27,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:27,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:27,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:27,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:27,399 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:27,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:27,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:27,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:27,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:27,406 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:27,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:27,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:27,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:27,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:27,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:27,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:27,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:27,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:27,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:27,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:27,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:27,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:27,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:27,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:27,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:27,415 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:27,441 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:27,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:27,443 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:27,443 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:27,444 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:27,444 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:27,444 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:27,444 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:27,444 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:27,444 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:27,445 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:27,445 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:27,445 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:27,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:27,446 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:27,446 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:27,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:27,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:27,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:27,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:27,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:27,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:27,447 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:27,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:27,447 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:27,447 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:27,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:27,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:27,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:27,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:27,448 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:27,449 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:27,449 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d15523fb5fa7fb710c0ce810eaa6ccfc4e6cdf50f754e30078d83eba1456e275 [2022-02-21 04:18:27,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:27,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:27,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:27,666 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:27,666 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:27,667 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product18.cil.c [2022-02-21 04:18:27,726 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/145bc0349/51686bd734974775be6641f118fa2cde/FLAG0981c37bc [2022-02-21 04:18:28,103 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:28,104 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product18.cil.c [2022-02-21 04:18:28,112 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/145bc0349/51686bd734974775be6641f118fa2cde/FLAG0981c37bc [2022-02-21 04:18:28,121 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/145bc0349/51686bd734974775be6641f118fa2cde [2022-02-21 04:18:28,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:28,123 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:28,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:28,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:28,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:28,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:28" (1/1) ... [2022-02-21 04:18:28,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c9abbb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:28, skipping insertion in model container [2022-02-21 04:18:28,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:28" (1/1) ... [2022-02-21 04:18:28,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:28,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:28,315 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_product18.cil.c[4891,4904] [2022-02-21 04:18:28,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:28,390 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:28,409 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_product18.cil.c[4891,4904] [2022-02-21 04:18:28,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:28,453 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:28,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:28 WrapperNode [2022-02-21 04:18:28,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:28,458 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:28,458 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:28,458 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:28,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:28" (1/1) ... [2022-02-21 04:18:28,479 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:28" (1/1) ... [2022-02-21 04:18:28,508 INFO L137 Inliner]: procedures = 55, calls = 153, calls flagged for inlining = 50, calls inlined = 55, statements flattened = 420 [2022-02-21 04:18:28,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:28,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:28,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:28,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:28,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:28" (1/1) ... [2022-02-21 04:18:28,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:28" (1/1) ... [2022-02-21 04:18:28,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:28" (1/1) ... [2022-02-21 04:18:28,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:28" (1/1) ... [2022-02-21 04:18:28,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:28" (1/1) ... [2022-02-21 04:18:28,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:28" (1/1) ... [2022-02-21 04:18:28,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:28" (1/1) ... [2022-02-21 04:18:28,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:28,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:28,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:28,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:28,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:28" (1/1) ... [2022-02-21 04:18:28,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:28,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:28,558 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 04:18:28,561 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 04:18:28,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:28,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:28,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:28,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:28,653 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:28,654 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:28,966 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:28,975 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:28,977 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:28,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:28 BoogieIcfgContainer [2022-02-21 04:18:28,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:28,981 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:28,981 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:28,983 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:28,984 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:28,984 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:28" (1/3) ... [2022-02-21 04:18:28,984 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29b3c9c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:28, skipping insertion in model container [2022-02-21 04:18:28,984 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:28,985 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:28" (2/3) ... [2022-02-21 04:18:28,985 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29b3c9c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:28, skipping insertion in model container [2022-02-21 04:18:28,985 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:28,985 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:28" (3/3) ... [2022-02-21 04:18:28,986 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product18.cil.c [2022-02-21 04:18:29,019 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:29,019 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:29,019 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:29,019 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:29,019 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:29,020 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:29,020 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:29,020 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:29,037 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 113 states, 112 states have (on average 1.3571428571428572) internal successors, (152), 112 states have internal predecessors, (152), 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 04:18:29,072 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2022-02-21 04:18:29,072 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:29,072 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:29,076 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:29,076 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 04:18:29,076 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:29,077 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 113 states, 112 states have (on average 1.3571428571428572) internal successors, (152), 112 states have internal predecessors, (152), 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 04:18:29,086 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2022-02-21 04:18:29,087 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:29,088 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:29,088 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:29,088 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 04:18:29,091 INFO L791 eck$LassoCheckResult]: Stem: 103#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 35#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret20#1, main_~retValue_acc~5#1, main_~tmp~3#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 26#L329true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 72#L322true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 61#L337true main_#t~ret20#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret20#1;havoc main_#t~ret20#1; 98#L426true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 10#L401true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 20#L447true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 33#L65-2true [2022-02-21 04:18:29,092 INFO L793 eck$LassoCheckResult]: Loop: 33#L65-2true assume !false; 28#L66true assume test_~splverifierCounter~0#1 < 4; 102#L67true test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 53#L75true assume !(0 != test_~tmp~0#1); 100#L75-2true test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 30#L85true assume !(0 != test_~tmp___0~0#1); 6#L85-2true test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 74#L95true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 65#L291true assume { :end_inline_startSystem } true; 78#L103-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret21#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 82#L227true __utac_acc__Specification5_spec__2_#t~ret21#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret21#1;havoc __utac_acc__Specification5_spec__2_#t~ret21#1; 15#L457true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 85#L142true assume !(0 != ~pumpRunning~0); 80#L142-2true assume !(0 != ~systemActive~0); 110#L149-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret22#1, __utac_acc__Specification5_spec__3_#t~ret23#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 7#L931true __utac_acc__Specification5_spec__3_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret22#1;havoc __utac_acc__Specification5_spec__3_#t~ret22#1; 105#L468true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 113#L468-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 57#L159true assume { :end_inline_timeShift } true; 33#L65-2true [2022-02-21 04:18:29,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:29,096 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:18:29,101 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:29,105 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465191390] [2022-02-21 04:18:29,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:29,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:29,243 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:29,290 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:29,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:29,292 INFO L85 PathProgramCache]: Analyzing trace with hash -798558613, now seen corresponding path program 1 times [2022-02-21 04:18:29,292 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:29,292 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000807089] [2022-02-21 04:18:29,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:29,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:29,381 INFO L290 TraceCheckUtils]: 0: Hoare triple {119#true} assume !false; {119#true} is VALID [2022-02-21 04:18:29,382 INFO L290 TraceCheckUtils]: 1: Hoare triple {119#true} assume test_~splverifierCounter~0#1 < 4; {119#true} is VALID [2022-02-21 04:18:29,382 INFO L290 TraceCheckUtils]: 2: Hoare triple {119#true} test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; {119#true} is VALID [2022-02-21 04:18:29,382 INFO L290 TraceCheckUtils]: 3: Hoare triple {119#true} assume !(0 != test_~tmp~0#1); {119#true} is VALID [2022-02-21 04:18:29,383 INFO L290 TraceCheckUtils]: 4: Hoare triple {119#true} test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {119#true} is VALID [2022-02-21 04:18:29,383 INFO L290 TraceCheckUtils]: 5: Hoare triple {119#true} assume !(0 != test_~tmp___0~0#1); {119#true} is VALID [2022-02-21 04:18:29,383 INFO L290 TraceCheckUtils]: 6: Hoare triple {119#true} test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {119#true} is VALID [2022-02-21 04:18:29,384 INFO L290 TraceCheckUtils]: 7: Hoare triple {119#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {121#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:29,384 INFO L290 TraceCheckUtils]: 8: Hoare triple {121#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {121#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:29,385 INFO L290 TraceCheckUtils]: 9: Hoare triple {121#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret21#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; {121#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:29,385 INFO L290 TraceCheckUtils]: 10: Hoare triple {121#(<= 1 ~systemActive~0)} __utac_acc__Specification5_spec__2_#t~ret21#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret21#1;havoc __utac_acc__Specification5_spec__2_#t~ret21#1; {121#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:29,386 INFO L290 TraceCheckUtils]: 11: Hoare triple {121#(<= 1 ~systemActive~0)} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {121#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:29,387 INFO L290 TraceCheckUtils]: 12: Hoare triple {121#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {121#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:29,387 INFO L290 TraceCheckUtils]: 13: Hoare triple {121#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {120#false} is VALID [2022-02-21 04:18:29,387 INFO L290 TraceCheckUtils]: 14: Hoare triple {120#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret22#1, __utac_acc__Specification5_spec__3_#t~ret23#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; {120#false} is VALID [2022-02-21 04:18:29,388 INFO L290 TraceCheckUtils]: 15: Hoare triple {120#false} __utac_acc__Specification5_spec__3_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret22#1;havoc __utac_acc__Specification5_spec__3_#t~ret22#1; {120#false} is VALID [2022-02-21 04:18:29,388 INFO L290 TraceCheckUtils]: 16: Hoare triple {120#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); {120#false} is VALID [2022-02-21 04:18:29,388 INFO L290 TraceCheckUtils]: 17: Hoare triple {120#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {120#false} is VALID [2022-02-21 04:18:29,388 INFO L290 TraceCheckUtils]: 18: Hoare triple {120#false} assume { :end_inline_timeShift } true; {120#false} is VALID [2022-02-21 04:18:29,389 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 04:18:29,389 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:29,390 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000807089] [2022-02-21 04:18:29,390 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000807089] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:29,390 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:29,391 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:29,391 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24959188] [2022-02-21 04:18:29,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:29,396 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:29,396 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:29,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:29,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:29,428 INFO L87 Difference]: Start difference. First operand has 113 states, 112 states have (on average 1.3571428571428572) internal successors, (152), 112 states have internal predecessors, (152), 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 04:18:29,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:29,574 INFO L93 Difference]: Finished difference Result 110 states and 139 transitions. [2022-02-21 04:18:29,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:29,576 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 04:18:29,597 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 04:18:29,601 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 110 states and 139 transitions. [2022-02-21 04:18:29,612 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2022-02-21 04:18:29,617 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 110 states to 100 states and 128 transitions. [2022-02-21 04:18:29,618 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 100 [2022-02-21 04:18:29,618 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 100 [2022-02-21 04:18:29,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 100 states and 128 transitions. [2022-02-21 04:18:29,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:29,619 INFO L681 BuchiCegarLoop]: Abstraction has 100 states and 128 transitions. [2022-02-21 04:18:29,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states and 128 transitions. [2022-02-21 04:18:29,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2022-02-21 04:18:29,642 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:29,646 INFO L82 GeneralOperation]: Start isEquivalent. First operand 100 states and 128 transitions. Second operand has 100 states, 100 states have (on average 1.28) internal successors, (128), 99 states have internal predecessors, (128), 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 04:18:29,649 INFO L74 IsIncluded]: Start isIncluded. First operand 100 states and 128 transitions. Second operand has 100 states, 100 states have (on average 1.28) internal successors, (128), 99 states have internal predecessors, (128), 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 04:18:29,651 INFO L87 Difference]: Start difference. First operand 100 states and 128 transitions. Second operand has 100 states, 100 states have (on average 1.28) internal successors, (128), 99 states have internal predecessors, (128), 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 04:18:29,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:29,656 INFO L93 Difference]: Finished difference Result 100 states and 128 transitions. [2022-02-21 04:18:29,656 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 128 transitions. [2022-02-21 04:18:29,657 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:29,660 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:29,660 INFO L74 IsIncluded]: Start isIncluded. First operand has 100 states, 100 states have (on average 1.28) internal successors, (128), 99 states have internal predecessors, (128), 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 100 states and 128 transitions. [2022-02-21 04:18:29,660 INFO L87 Difference]: Start difference. First operand has 100 states, 100 states have (on average 1.28) internal successors, (128), 99 states have internal predecessors, (128), 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 100 states and 128 transitions. [2022-02-21 04:18:29,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:29,665 INFO L93 Difference]: Finished difference Result 100 states and 128 transitions. [2022-02-21 04:18:29,665 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 128 transitions. [2022-02-21 04:18:29,667 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:29,667 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:29,667 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:29,671 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:29,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 100 states have (on average 1.28) internal successors, (128), 99 states have internal predecessors, (128), 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 04:18:29,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 128 transitions. [2022-02-21 04:18:29,675 INFO L704 BuchiCegarLoop]: Abstraction has 100 states and 128 transitions. [2022-02-21 04:18:29,675 INFO L587 BuchiCegarLoop]: Abstraction has 100 states and 128 transitions. [2022-02-21 04:18:29,675 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:29,675 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 100 states and 128 transitions. [2022-02-21 04:18:29,677 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2022-02-21 04:18:29,678 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:29,678 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:29,680 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:29,680 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 04:18:29,680 INFO L791 eck$LassoCheckResult]: Stem: 330#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 286#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret20#1, main_~retValue_acc~5#1, main_~tmp~3#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 270#L329 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 271#L322 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 310#L337 main_#t~ret20#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret20#1;havoc main_#t~ret20#1; 311#L426 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 244#L401 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 245#L447 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 263#L65-2 [2022-02-21 04:18:29,681 INFO L793 eck$LassoCheckResult]: Loop: 263#L65-2 assume !false; 274#L66 assume test_~splverifierCounter~0#1 < 4; 275#L67 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 302#L75 assume !(0 != test_~tmp~0#1); 304#L75-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 280#L85 assume !(0 != test_~tmp___0~0#1); 236#L85-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 237#L95 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 323#L103 assume 0 != test_~tmp___1~0#1; 316#L103-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret21#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 325#L227 __utac_acc__Specification5_spec__2_#t~ret21#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret21#1;havoc __utac_acc__Specification5_spec__2_#t~ret21#1; 254#L457 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 255#L142 assume !(0 != ~pumpRunning~0); 327#L142-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 328#L174 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 319#L166-1 assume { :end_inline_processEnvironment__wrappee__base } true; 320#L174-1 assume { :end_inline_processEnvironment } true; 326#L149-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret22#1, __utac_acc__Specification5_spec__3_#t~ret23#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 238#L931 __utac_acc__Specification5_spec__3_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret22#1;havoc __utac_acc__Specification5_spec__3_#t~ret22#1; 239#L468 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 272#L468-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 306#L159 assume { :end_inline_timeShift } true; 263#L65-2 [2022-02-21 04:18:29,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:29,682 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:18:29,682 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:29,682 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830154680] [2022-02-21 04:18:29,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:29,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:29,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:29,718 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:29,745 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:29,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:29,748 INFO L85 PathProgramCache]: Analyzing trace with hash -71689873, now seen corresponding path program 1 times [2022-02-21 04:18:29,748 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:29,748 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99739833] [2022-02-21 04:18:29,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:29,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:29,760 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:29,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:29,771 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:29,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:29,772 INFO L85 PathProgramCache]: Analyzing trace with hash 370522008, now seen corresponding path program 1 times [2022-02-21 04:18:29,772 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:29,773 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222002704] [2022-02-21 04:18:29,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:29,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:29,861 INFO L290 TraceCheckUtils]: 0: Hoare triple {539#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {541#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:29,862 INFO L290 TraceCheckUtils]: 1: Hoare triple {541#(= ~waterLevel~0 1)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret20#1, main_~retValue_acc~5#1, main_~tmp~3#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; {541#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:29,862 INFO L290 TraceCheckUtils]: 2: Hoare triple {541#(= ~waterLevel~0 1)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {541#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:29,863 INFO L290 TraceCheckUtils]: 3: Hoare triple {541#(= ~waterLevel~0 1)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; {541#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:29,863 INFO L290 TraceCheckUtils]: 4: Hoare triple {541#(= ~waterLevel~0 1)} main_#t~ret20#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret20#1;havoc main_#t~ret20#1; {541#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:29,864 INFO L290 TraceCheckUtils]: 5: Hoare triple {541#(= ~waterLevel~0 1)} assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; {541#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:29,865 INFO L290 TraceCheckUtils]: 6: Hoare triple {541#(= ~waterLevel~0 1)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; {541#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:29,865 INFO L290 TraceCheckUtils]: 7: Hoare triple {541#(= ~waterLevel~0 1)} assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {541#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:29,865 INFO L290 TraceCheckUtils]: 8: Hoare triple {541#(= ~waterLevel~0 1)} assume !false; {541#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:29,866 INFO L290 TraceCheckUtils]: 9: Hoare triple {541#(= ~waterLevel~0 1)} assume test_~splverifierCounter~0#1 < 4; {541#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:29,866 INFO L290 TraceCheckUtils]: 10: Hoare triple {541#(= ~waterLevel~0 1)} test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; {541#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:29,867 INFO L290 TraceCheckUtils]: 11: Hoare triple {541#(= ~waterLevel~0 1)} assume !(0 != test_~tmp~0#1); {541#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:29,867 INFO L290 TraceCheckUtils]: 12: Hoare triple {541#(= ~waterLevel~0 1)} test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {541#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:29,867 INFO L290 TraceCheckUtils]: 13: Hoare triple {541#(= ~waterLevel~0 1)} assume !(0 != test_~tmp___0~0#1); {541#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:29,868 INFO L290 TraceCheckUtils]: 14: Hoare triple {541#(= ~waterLevel~0 1)} test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {541#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:29,868 INFO L290 TraceCheckUtils]: 15: Hoare triple {541#(= ~waterLevel~0 1)} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; {541#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:29,868 INFO L290 TraceCheckUtils]: 16: Hoare triple {541#(= ~waterLevel~0 1)} assume 0 != test_~tmp___1~0#1; {541#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:29,869 INFO L290 TraceCheckUtils]: 17: Hoare triple {541#(= ~waterLevel~0 1)} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret21#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; {541#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:29,869 INFO L290 TraceCheckUtils]: 18: Hoare triple {541#(= ~waterLevel~0 1)} __utac_acc__Specification5_spec__2_#t~ret21#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret21#1;havoc __utac_acc__Specification5_spec__2_#t~ret21#1; {541#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:29,870 INFO L290 TraceCheckUtils]: 19: Hoare triple {541#(= ~waterLevel~0 1)} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {541#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:29,870 INFO L290 TraceCheckUtils]: 20: Hoare triple {541#(= ~waterLevel~0 1)} assume !(0 != ~pumpRunning~0); {541#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:29,870 INFO L290 TraceCheckUtils]: 21: Hoare triple {541#(= ~waterLevel~0 1)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; {541#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:29,871 INFO L290 TraceCheckUtils]: 22: Hoare triple {541#(= ~waterLevel~0 1)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {541#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:29,871 INFO L290 TraceCheckUtils]: 23: Hoare triple {541#(= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__base } true; {541#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:29,871 INFO L290 TraceCheckUtils]: 24: Hoare triple {541#(= ~waterLevel~0 1)} assume { :end_inline_processEnvironment } true; {541#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:29,872 INFO L290 TraceCheckUtils]: 25: Hoare triple {541#(= ~waterLevel~0 1)} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret22#1, __utac_acc__Specification5_spec__3_#t~ret23#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; {542#(= |ULTIMATE.start_getWaterLevel_#res#1| 1)} is VALID [2022-02-21 04:18:29,872 INFO L290 TraceCheckUtils]: 26: Hoare triple {542#(= |ULTIMATE.start_getWaterLevel_#res#1| 1)} __utac_acc__Specification5_spec__3_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret22#1;havoc __utac_acc__Specification5_spec__3_#t~ret22#1; {543#(= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~4#1| 1)} is VALID [2022-02-21 04:18:29,873 INFO L290 TraceCheckUtils]: 27: Hoare triple {543#(= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~4#1| 1)} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); {540#false} is VALID [2022-02-21 04:18:29,873 INFO L290 TraceCheckUtils]: 28: Hoare triple {540#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {540#false} is VALID [2022-02-21 04:18:29,873 INFO L290 TraceCheckUtils]: 29: Hoare triple {540#false} assume { :end_inline_timeShift } true; {540#false} is VALID [2022-02-21 04:18:29,873 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 04:18:29,874 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:29,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222002704] [2022-02-21 04:18:29,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222002704] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:29,874 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:29,874 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:18:29,875 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987352810] [2022-02-21 04:18:29,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:30,028 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:30,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:30,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:30,029 INFO L87 Difference]: Start difference. First operand 100 states and 128 transitions. cyclomatic complexity: 30 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:30,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:30,492 INFO L93 Difference]: Finished difference Result 288 states and 366 transitions. [2022-02-21 04:18:30,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:30,492 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:30,514 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:30,514 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 288 states and 366 transitions. [2022-02-21 04:18:30,522 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 128 [2022-02-21 04:18:30,534 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 288 states to 288 states and 366 transitions. [2022-02-21 04:18:30,534 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 288 [2022-02-21 04:18:30,535 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 288 [2022-02-21 04:18:30,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 288 states and 366 transitions. [2022-02-21 04:18:30,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:30,538 INFO L681 BuchiCegarLoop]: Abstraction has 288 states and 366 transitions. [2022-02-21 04:18:30,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states and 366 transitions. [2022-02-21 04:18:30,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 188. [2022-02-21 04:18:30,557 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:30,557 INFO L82 GeneralOperation]: Start isEquivalent. First operand 288 states and 366 transitions. Second operand has 188 states, 188 states have (on average 1.2606382978723405) internal successors, (237), 187 states have internal predecessors, (237), 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 04:18:30,558 INFO L74 IsIncluded]: Start isIncluded. First operand 288 states and 366 transitions. Second operand has 188 states, 188 states have (on average 1.2606382978723405) internal successors, (237), 187 states have internal predecessors, (237), 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 04:18:30,558 INFO L87 Difference]: Start difference. First operand 288 states and 366 transitions. Second operand has 188 states, 188 states have (on average 1.2606382978723405) internal successors, (237), 187 states have internal predecessors, (237), 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 04:18:30,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:30,565 INFO L93 Difference]: Finished difference Result 288 states and 366 transitions. [2022-02-21 04:18:30,565 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 366 transitions. [2022-02-21 04:18:30,566 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:30,566 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:30,566 INFO L74 IsIncluded]: Start isIncluded. First operand has 188 states, 188 states have (on average 1.2606382978723405) internal successors, (237), 187 states have internal predecessors, (237), 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 288 states and 366 transitions. [2022-02-21 04:18:30,566 INFO L87 Difference]: Start difference. First operand has 188 states, 188 states have (on average 1.2606382978723405) internal successors, (237), 187 states have internal predecessors, (237), 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 288 states and 366 transitions. [2022-02-21 04:18:30,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:30,584 INFO L93 Difference]: Finished difference Result 288 states and 366 transitions. [2022-02-21 04:18:30,584 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 366 transitions. [2022-02-21 04:18:30,585 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:30,585 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:30,585 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:30,585 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:30,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 188 states have (on average 1.2606382978723405) internal successors, (237), 187 states have internal predecessors, (237), 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 04:18:30,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 237 transitions. [2022-02-21 04:18:30,590 INFO L704 BuchiCegarLoop]: Abstraction has 188 states and 237 transitions. [2022-02-21 04:18:30,590 INFO L587 BuchiCegarLoop]: Abstraction has 188 states and 237 transitions. [2022-02-21 04:18:30,590 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:30,590 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 188 states and 237 transitions. [2022-02-21 04:18:30,591 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 128 [2022-02-21 04:18:30,591 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:30,591 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:30,592 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:30,592 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] [2022-02-21 04:18:30,592 INFO L791 eck$LassoCheckResult]: Stem: 946#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 893#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret20#1, main_~retValue_acc~5#1, main_~tmp~3#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 877#L329 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 878#L322 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 920#L337 main_#t~ret20#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret20#1;havoc main_#t~ret20#1; 921#L426 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 850#L401 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 851#L447 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 869#L65-2 [2022-02-21 04:18:30,592 INFO L793 eck$LassoCheckResult]: Loop: 869#L65-2 assume !false; 882#L66 assume test_~splverifierCounter~0#1 < 4; 883#L67 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 912#L75 assume !(0 != test_~tmp~0#1); 914#L75-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 887#L85 assume !(0 != test_~tmp___0~0#1); 842#L85-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 843#L95 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 933#L103 assume 0 != test_~tmp___1~0#1; 926#L103-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret21#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 936#L227 __utac_acc__Specification5_spec__2_#t~ret21#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret21#1;havoc __utac_acc__Specification5_spec__2_#t~ret21#1; 860#L457 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 861#L142 assume !(0 != ~pumpRunning~0); 938#L142-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 939#L174 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 992#L166-1 assume { :end_inline_processEnvironment__wrappee__base } true; 991#L174-1 assume { :end_inline_processEnvironment } true; 990#L149-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret22#1, __utac_acc__Specification5_spec__3_#t~ret23#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 989#L931 __utac_acc__Specification5_spec__3_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret22#1;havoc __utac_acc__Specification5_spec__3_#t~ret22#1; 948#L468 assume 2 != __utac_acc__Specification5_spec__3_~tmp~4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 949#L227-1 __utac_acc__Specification5_spec__3_#t~ret23#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret23#1;havoc __utac_acc__Specification5_spec__3_#t~ret23#1; 879#L472 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1); 880#L468-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 916#L159 assume { :end_inline_timeShift } true; 869#L65-2 [2022-02-21 04:18:30,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:30,593 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:18:30,593 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:30,593 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772070104] [2022-02-21 04:18:30,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:30,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:30,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:30,602 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:30,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:30,609 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:30,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:30,609 INFO L85 PathProgramCache]: Analyzing trace with hash -193589814, now seen corresponding path program 1 times [2022-02-21 04:18:30,610 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:30,610 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779617810] [2022-02-21 04:18:30,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:30,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:30,614 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:30,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:30,618 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:30,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:30,618 INFO L85 PathProgramCache]: Analyzing trace with hash -429734477, now seen corresponding path program 1 times [2022-02-21 04:18:30,618 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:30,619 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223968327] [2022-02-21 04:18:30,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:30,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:30,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:30,628 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:30,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:30,638 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:33,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:33 BoogieIcfgContainer [2022-02-21 04:18:33,105 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:33,105 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:33,105 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:33,105 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:33,106 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:28" (3/4) ... [2022-02-21 04:18:33,107 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:33,133 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:33,134 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:33,134 INFO L158 Benchmark]: Toolchain (without parser) took 5010.96ms. Allocated memory was 113.2MB in the beginning and 163.6MB in the end (delta: 50.3MB). Free memory was 82.1MB in the beginning and 68.6MB in the end (delta: 13.5MB). Peak memory consumption was 63.8MB. Max. memory is 16.1GB. [2022-02-21 04:18:33,135 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 83.9MB. Free memory is still 40.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:33,135 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.53ms. Allocated memory is still 113.2MB. Free memory was 81.6MB in the beginning and 77.1MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:18:33,136 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.81ms. Allocated memory is still 113.2MB. Free memory was 77.1MB in the beginning and 73.5MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:33,137 INFO L158 Benchmark]: Boogie Preprocessor took 20.21ms. Allocated memory is still 113.2MB. Free memory was 73.5MB in the beginning and 72.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:33,137 INFO L158 Benchmark]: RCFGBuilder took 450.08ms. Allocated memory is still 113.2MB. Free memory was 72.1MB in the beginning and 51.3MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-02-21 04:18:33,138 INFO L158 Benchmark]: BuchiAutomizer took 4123.95ms. Allocated memory was 113.2MB in the beginning and 163.6MB in the end (delta: 50.3MB). Free memory was 51.3MB in the beginning and 71.7MB in the end (delta: -20.4MB). Peak memory consumption was 45.4MB. Max. memory is 16.1GB. [2022-02-21 04:18:33,138 INFO L158 Benchmark]: Witness Printer took 28.43ms. Allocated memory is still 163.6MB. Free memory was 71.7MB in the beginning and 68.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:33,139 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 83.9MB. Free memory is still 40.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 331.53ms. Allocated memory is still 113.2MB. Free memory was 81.6MB in the beginning and 77.1MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.81ms. Allocated memory is still 113.2MB. Free memory was 77.1MB in the beginning and 73.5MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.21ms. Allocated memory is still 113.2MB. Free memory was 73.5MB in the beginning and 72.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 450.08ms. Allocated memory is still 113.2MB. Free memory was 72.1MB in the beginning and 51.3MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 4123.95ms. Allocated memory was 113.2MB in the beginning and 163.6MB in the end (delta: 50.3MB). Free memory was 51.3MB in the beginning and 71.7MB in the end (delta: -20.4MB). Peak memory consumption was 45.4MB. Max. memory is 16.1GB. * Witness Printer took 28.43ms. Allocated memory is still 163.6MB. Free memory was 71.7MB in the beginning and 68.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 188 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 100 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 188 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 550 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 550 mSDsluCounter, 703 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 393 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83 IncrementalHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 310 mSDtfsCounter, 83 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 65]: 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, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39bc20bd=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@373491eb=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b6a6eb0=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@512252bc=0, methaneLevelCritical=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24416165=0, \result=1, retValue_acc=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ddf4876=0, tmp=1, tmp___2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d43ba6e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@393863a8=0, \result=0, tmp=0, tmp=1, cleanupTimeShifts=4, switchedOnBeforeTS=0, \result=0, tmp=0, tmp___0=0, head=0, \result=1, tmp___1=29, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7142dd5d=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 65]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L130] int pumpRunning = 0; [L131] int systemActive = 1; [L342] int cleanupTimeShifts = 4; [L441] int switchedOnBeforeTS ; [L659] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L856] int waterLevel = 1; [L857] int methaneLevelCritical = 0; [L417] int retValue_acc ; [L418] int tmp ; [L422] FCALL select_helpers() [L423] FCALL select_features() [L424] CALL, EXPR valid_product() [L333] int retValue_acc ; [L336] retValue_acc = 1 [L337] return (retValue_acc); [L424] RET, EXPR valid_product() [L424] tmp = valid_product() [L426] COND TRUE \read(tmp) [L428] FCALL setup() [L429] CALL runTest() [L410] CALL __utac_acc__Specification5_spec__1() [L446] switchedOnBeforeTS = 0 [L410] RET __utac_acc__Specification5_spec__1() [L411] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND FALSE !(\read(tmp___2)) [L101] tmp___1 = __VERIFIER_nondet_int() [L103] COND TRUE \read(tmp___1) [L110] CALL timeShift() [L140] CALL __utac_acc__Specification5_spec__2() [L455] CALL, EXPR isPumpRunning() [L223] int retValue_acc ; [L226] retValue_acc = pumpRunning [L227] return (retValue_acc); [L455] RET, EXPR isPumpRunning() [L455] switchedOnBeforeTS = isPumpRunning() [L140] RET __utac_acc__Specification5_spec__2() [L142] COND FALSE !(\read(pumpRunning)) [L149] COND TRUE \read(systemActive) [L151] CALL processEnvironment() [L171] int tmp ; [L174] COND FALSE !(\read(pumpRunning)) [L189] FCALL processEnvironment__wrappee__base() [L151] RET processEnvironment() [L157] CALL __utac_acc__Specification5_spec__3() [L461] int tmp ; [L462] int tmp___0 ; [L466] CALL, EXPR getWaterLevel() [L927] int retValue_acc ; [L930] retValue_acc = waterLevel [L931] return (retValue_acc); [L466] RET, EXPR getWaterLevel() [L466] tmp = getWaterLevel() [L468] COND TRUE tmp != 2 [L470] CALL, EXPR isPumpRunning() [L223] int retValue_acc ; [L226] retValue_acc = pumpRunning [L227] return (retValue_acc); [L470] RET, EXPR isPumpRunning() [L470] tmp___0 = isPumpRunning() [L472] COND FALSE !(\read(tmp___0)) [L157] RET __utac_acc__Specification5_spec__3() [L110] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:33,179 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with 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)