./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product59.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_spec4_product59.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 68cd47586ea836a40d34f69dc7bca714ffc0af5c5bf2f7fbd8cfbbd6f1019685 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:09,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:09,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:09,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:09,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:09,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:09,547 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:09,552 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:09,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:09,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:09,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:09,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:09,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:09,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:09,567 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:09,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:09,569 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:09,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:09,571 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:09,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:09,573 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:09,577 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:09,578 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:09,579 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:09,581 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:09,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:09,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:09,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:09,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:09,589 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:09,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:09,590 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:09,591 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:09,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:09,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:09,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:09,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:09,593 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:09,593 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:09,594 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:09,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:09,596 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:09,615 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:09,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:09,615 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:09,615 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:09,616 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:09,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:09,617 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:09,617 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:09,617 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:09,617 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:09,618 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:09,618 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:09,618 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:09,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:09,618 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:09,619 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:09,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:09,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:09,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:09,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:09,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:09,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:09,621 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:09,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:09,621 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:09,622 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:09,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:09,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:09,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:09,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:09,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:09,624 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:09,624 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68cd47586ea836a40d34f69dc7bca714ffc0af5c5bf2f7fbd8cfbbd6f1019685 [2022-02-21 04:18:09,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:09,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:09,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:09,854 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:09,855 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:09,856 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c [2022-02-21 04:18:09,932 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d012b7fb/b588c8a47a9d4b81830277fafdc47c89/FLAG8bf5e28f2 [2022-02-21 04:18:10,384 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:10,385 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c [2022-02-21 04:18:10,412 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d012b7fb/b588c8a47a9d4b81830277fafdc47c89/FLAG8bf5e28f2 [2022-02-21 04:18:10,889 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d012b7fb/b588c8a47a9d4b81830277fafdc47c89 [2022-02-21 04:18:10,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:10,893 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:10,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:10,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:10,906 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:10,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:10" (1/1) ... [2022-02-21 04:18:10,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e12688c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:10, skipping insertion in model container [2022-02-21 04:18:10,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:10" (1/1) ... [2022-02-21 04:18:10,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:10,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:11,152 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_spec4_product59.cil.c[9171,9184] [2022-02-21 04:18:11,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:11,224 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:11,280 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_spec4_product59.cil.c[9171,9184] [2022-02-21 04:18:11,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:11,329 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:11,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:11 WrapperNode [2022-02-21 04:18:11,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:11,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:11,332 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:11,332 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:11,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:11" (1/1) ... [2022-02-21 04:18:11,356 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:11" (1/1) ... [2022-02-21 04:18:11,403 INFO L137 Inliner]: procedures = 57, calls = 158, calls flagged for inlining = 55, calls inlined = 97, statements flattened = 732 [2022-02-21 04:18:11,408 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:11,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:11,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:11,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:11,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:11" (1/1) ... [2022-02-21 04:18:11,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:11" (1/1) ... [2022-02-21 04:18:11,420 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:11" (1/1) ... [2022-02-21 04:18:11,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:11" (1/1) ... [2022-02-21 04:18:11,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:11" (1/1) ... [2022-02-21 04:18:11,442 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:11" (1/1) ... [2022-02-21 04:18:11,444 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:11" (1/1) ... [2022-02-21 04:18:11,446 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:11,447 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:11,447 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:11,447 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:11,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:11" (1/1) ... [2022-02-21 04:18:11,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:11,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:11,482 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 04:18:11,485 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 04:18:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:11,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:11,566 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:11,567 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:12,055 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:12,062 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:12,065 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:12,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:12 BoogieIcfgContainer [2022-02-21 04:18:12,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:12,069 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:12,069 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:12,072 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:12,073 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:12,073 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:10" (1/3) ... [2022-02-21 04:18:12,074 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@19182b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:12, skipping insertion in model container [2022-02-21 04:18:12,074 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:12,075 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:11" (2/3) ... [2022-02-21 04:18:12,075 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@19182b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:12, skipping insertion in model container [2022-02-21 04:18:12,075 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:12,075 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:12" (3/3) ... [2022-02-21 04:18:12,076 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product59.cil.c [2022-02-21 04:18:12,122 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:12,123 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:12,123 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:12,123 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:12,123 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:12,123 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:12,123 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:12,124 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:12,157 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 190 states, 189 states have (on average 1.3597883597883598) internal successors, (257), 189 states have internal predecessors, (257), 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 04:18:12,216 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 124 [2022-02-21 04:18:12,217 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:12,217 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:12,222 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:12,222 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:12,222 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:12,226 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 190 states, 189 states have (on average 1.3597883597883598) internal successors, (257), 189 states have internal predecessors, (257), 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 04:18:12,235 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 124 [2022-02-21 04:18:12,238 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:12,239 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:12,240 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:12,240 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:12,244 INFO L791 eck$LassoCheckResult]: Stem: 173#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(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 57#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret25#1, main_~retValue_acc~6#1, main_~tmp~7#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 84#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 181#L68true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 35#L83true main_#t~ret25#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret25#1;havoc main_#t~ret25#1; 67#L509true assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 140#L486true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 119#L132-2true [2022-02-21 04:18:12,246 INFO L793 eck$LassoCheckResult]: Loop: 119#L132-2true assume !false; 162#L133true assume test_~splverifierCounter~0#1 < 4; 175#L134true test_~tmp~1#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 145#L142true assume !(0 != test_~tmp~1#1); 139#L142-2true test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 44#L152true assume !(0 != test_~tmp___0~1#1); 121#L152-2true test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 46#L162true assume 0 != test_~tmp___2~0#1; 11#L168-2true assume { :begin_inline_timeShift } true; 155#L204true assume !(0 != ~pumpRunning~0); 141#L204-2true assume !(0 != ~systemActive~0); 156#L211-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret5#1, __utac_acc__Specification4_spec__1_#t~ret6#1, __utac_acc__Specification4_spec__1_~tmp~0#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~0#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; 169#L598true __utac_acc__Specification4_spec__1_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~0#1 := __utac_acc__Specification4_spec__1_#t~ret5#1;havoc __utac_acc__Specification4_spec__1_#t~ret5#1; 157#L99true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0#1); 66#L99-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 122#L221true assume { :end_inline_timeShift } true; 119#L132-2true [2022-02-21 04:18:12,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:12,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:18:12,265 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:12,265 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621809981] [2022-02-21 04:18:12,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:12,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:12,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:12,396 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:12,460 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:12,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:12,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1086892900, now seen corresponding path program 1 times [2022-02-21 04:18:12,464 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:12,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106611477] [2022-02-21 04:18:12,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:12,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:12,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:12,489 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:12,494 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:12,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:12,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1852655320, now seen corresponding path program 1 times [2022-02-21 04:18:12,495 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:12,495 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437955336] [2022-02-21 04:18:12,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:12,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:12,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:12,630 INFO L290 TraceCheckUtils]: 0: Hoare triple {198#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(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {200#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:12,631 INFO L290 TraceCheckUtils]: 1: Hoare triple {200#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret25#1, main_~retValue_acc~6#1, main_~tmp~7#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; {200#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:12,631 INFO L290 TraceCheckUtils]: 2: Hoare triple {200#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {200#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:12,632 INFO L290 TraceCheckUtils]: 3: Hoare triple {200#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; {201#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:18:12,632 INFO L290 TraceCheckUtils]: 4: Hoare triple {201#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret25#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret25#1;havoc main_#t~ret25#1; {202#(= |ULTIMATE.start_main_~tmp~7#1| ~systemActive~0)} is VALID [2022-02-21 04:18:12,633 INFO L290 TraceCheckUtils]: 5: Hoare triple {202#(= |ULTIMATE.start_main_~tmp~7#1| ~systemActive~0)} assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; {203#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:12,633 INFO L290 TraceCheckUtils]: 6: Hoare triple {203#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {203#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:12,634 INFO L290 TraceCheckUtils]: 7: Hoare triple {203#(not (= 0 ~systemActive~0))} assume !false; {203#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:12,635 INFO L290 TraceCheckUtils]: 8: Hoare triple {203#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {203#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:12,635 INFO L290 TraceCheckUtils]: 9: Hoare triple {203#(not (= 0 ~systemActive~0))} test_~tmp~1#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; {203#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:12,636 INFO L290 TraceCheckUtils]: 10: Hoare triple {203#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~1#1); {203#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:12,637 INFO L290 TraceCheckUtils]: 11: Hoare triple {203#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; {203#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:12,637 INFO L290 TraceCheckUtils]: 12: Hoare triple {203#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {203#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:12,638 INFO L290 TraceCheckUtils]: 13: Hoare triple {203#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; {203#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:12,638 INFO L290 TraceCheckUtils]: 14: Hoare triple {203#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {203#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:12,639 INFO L290 TraceCheckUtils]: 15: Hoare triple {203#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {203#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:12,639 INFO L290 TraceCheckUtils]: 16: Hoare triple {203#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {203#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:12,639 INFO L290 TraceCheckUtils]: 17: Hoare triple {203#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {199#false} is VALID [2022-02-21 04:18:12,641 INFO L290 TraceCheckUtils]: 18: Hoare triple {199#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret5#1, __utac_acc__Specification4_spec__1_#t~ret6#1, __utac_acc__Specification4_spec__1_~tmp~0#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~0#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; {199#false} is VALID [2022-02-21 04:18:12,641 INFO L290 TraceCheckUtils]: 19: Hoare triple {199#false} __utac_acc__Specification4_spec__1_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~0#1 := __utac_acc__Specification4_spec__1_#t~ret5#1;havoc __utac_acc__Specification4_spec__1_#t~ret5#1; {199#false} is VALID [2022-02-21 04:18:12,641 INFO L290 TraceCheckUtils]: 20: Hoare triple {199#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0#1); {199#false} is VALID [2022-02-21 04:18:12,641 INFO L290 TraceCheckUtils]: 21: Hoare triple {199#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {199#false} is VALID [2022-02-21 04:18:12,642 INFO L290 TraceCheckUtils]: 22: Hoare triple {199#false} assume { :end_inline_timeShift } true; {199#false} is VALID [2022-02-21 04:18:12,643 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 04:18:12,644 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:12,645 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437955336] [2022-02-21 04:18:12,645 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437955336] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:12,645 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:12,645 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:12,646 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339563001] [2022-02-21 04:18:12,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:12,784 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:12,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:18:12,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:18:12,810 INFO L87 Difference]: Start difference. First operand has 190 states, 189 states have (on average 1.3597883597883598) internal successors, (257), 189 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:13,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:13,692 INFO L93 Difference]: Finished difference Result 431 states and 563 transitions. [2022-02-21 04:18:13,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:13,693 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:13,716 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:13,719 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 431 states and 563 transitions. [2022-02-21 04:18:13,754 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 279 [2022-02-21 04:18:13,773 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 431 states to 401 states and 533 transitions. [2022-02-21 04:18:13,775 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 401 [2022-02-21 04:18:13,776 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 401 [2022-02-21 04:18:13,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 401 states and 533 transitions. [2022-02-21 04:18:13,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:13,783 INFO L681 BuchiCegarLoop]: Abstraction has 401 states and 533 transitions. [2022-02-21 04:18:13,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states and 533 transitions. [2022-02-21 04:18:13,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 229. [2022-02-21 04:18:13,809 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:13,811 INFO L82 GeneralOperation]: Start isEquivalent. First operand 401 states and 533 transitions. Second operand has 229 states, 229 states have (on average 1.3275109170305677) internal successors, (304), 228 states have internal predecessors, (304), 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 04:18:13,811 INFO L74 IsIncluded]: Start isIncluded. First operand 401 states and 533 transitions. Second operand has 229 states, 229 states have (on average 1.3275109170305677) internal successors, (304), 228 states have internal predecessors, (304), 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 04:18:13,813 INFO L87 Difference]: Start difference. First operand 401 states and 533 transitions. Second operand has 229 states, 229 states have (on average 1.3275109170305677) internal successors, (304), 228 states have internal predecessors, (304), 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 04:18:13,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:13,825 INFO L93 Difference]: Finished difference Result 401 states and 533 transitions. [2022-02-21 04:18:13,825 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 533 transitions. [2022-02-21 04:18:13,827 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:13,827 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:13,828 INFO L74 IsIncluded]: Start isIncluded. First operand has 229 states, 229 states have (on average 1.3275109170305677) internal successors, (304), 228 states have internal predecessors, (304), 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 401 states and 533 transitions. [2022-02-21 04:18:13,828 INFO L87 Difference]: Start difference. First operand has 229 states, 229 states have (on average 1.3275109170305677) internal successors, (304), 228 states have internal predecessors, (304), 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 401 states and 533 transitions. [2022-02-21 04:18:13,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:13,842 INFO L93 Difference]: Finished difference Result 401 states and 533 transitions. [2022-02-21 04:18:13,842 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 533 transitions. [2022-02-21 04:18:13,843 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:13,843 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:13,843 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:13,843 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:13,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 229 states have (on average 1.3275109170305677) internal successors, (304), 228 states have internal predecessors, (304), 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 04:18:13,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 304 transitions. [2022-02-21 04:18:13,853 INFO L704 BuchiCegarLoop]: Abstraction has 229 states and 304 transitions. [2022-02-21 04:18:13,853 INFO L587 BuchiCegarLoop]: Abstraction has 229 states and 304 transitions. [2022-02-21 04:18:13,853 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:13,853 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 229 states and 304 transitions. [2022-02-21 04:18:13,854 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 160 [2022-02-21 04:18:13,854 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:13,854 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:13,855 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:13,855 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] [2022-02-21 04:18:13,855 INFO L791 eck$LassoCheckResult]: Stem: 816#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(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 734#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret25#1, main_~retValue_acc~6#1, main_~tmp~7#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 735#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 765#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 698#L83 main_#t~ret25#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret25#1;havoc main_#t~ret25#1; 699#L509 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 747#L486 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 792#L132-2 [2022-02-21 04:18:13,856 INFO L793 eck$LassoCheckResult]: Loop: 792#L132-2 assume !false; 793#L133 assume test_~splverifierCounter~0#1 < 4; 813#L134 test_~tmp~1#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 805#L142 assume !(0 != test_~tmp~1#1); 678#L142-2 test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 712#L152 assume !(0 != test_~tmp___0~1#1); 714#L152-2 test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 717#L162 assume 0 != test_~tmp___2~0#1; 648#L168-2 assume { :begin_inline_timeShift } true; 652#L204 assume !(0 != ~pumpRunning~0); 791#L204-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret12#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 759#L262 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 761#L236-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 763#L228-3 assume { :end_inline_processEnvironment__wrappee__base } true; 694#L236-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 695#L262-1 assume { :end_inline_processEnvironment } true; 703#L211-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret5#1, __utac_acc__Specification4_spec__1_#t~ret6#1, __utac_acc__Specification4_spec__1_~tmp~0#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~0#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; 809#L598 __utac_acc__Specification4_spec__1_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~0#1 := __utac_acc__Specification4_spec__1_#t~ret5#1;havoc __utac_acc__Specification4_spec__1_#t~ret5#1; 810#L99 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0#1); 745#L99-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 746#L221 assume { :end_inline_timeShift } true; 792#L132-2 [2022-02-21 04:18:13,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:13,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:18:13,856 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:13,857 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17025558] [2022-02-21 04:18:13,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:13,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:13,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:13,868 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:13,878 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:13,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:13,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1122654490, now seen corresponding path program 1 times [2022-02-21 04:18:13,883 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:13,883 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723205231] [2022-02-21 04:18:13,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:13,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:13,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:13,899 INFO L290 TraceCheckUtils]: 0: Hoare triple {1675#true} assume !false; {1675#true} is VALID [2022-02-21 04:18:13,900 INFO L290 TraceCheckUtils]: 1: Hoare triple {1675#true} assume test_~splverifierCounter~0#1 < 4; {1675#true} is VALID [2022-02-21 04:18:13,900 INFO L290 TraceCheckUtils]: 2: Hoare triple {1675#true} test_~tmp~1#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; {1675#true} is VALID [2022-02-21 04:18:13,900 INFO L290 TraceCheckUtils]: 3: Hoare triple {1675#true} assume !(0 != test_~tmp~1#1); {1675#true} is VALID [2022-02-21 04:18:13,900 INFO L290 TraceCheckUtils]: 4: Hoare triple {1675#true} test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; {1675#true} is VALID [2022-02-21 04:18:13,900 INFO L290 TraceCheckUtils]: 5: Hoare triple {1675#true} assume !(0 != test_~tmp___0~1#1); {1675#true} is VALID [2022-02-21 04:18:13,901 INFO L290 TraceCheckUtils]: 6: Hoare triple {1675#true} test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; {1675#true} is VALID [2022-02-21 04:18:13,901 INFO L290 TraceCheckUtils]: 7: Hoare triple {1675#true} assume 0 != test_~tmp___2~0#1; {1675#true} is VALID [2022-02-21 04:18:13,901 INFO L290 TraceCheckUtils]: 8: Hoare triple {1675#true} assume { :begin_inline_timeShift } true; {1675#true} is VALID [2022-02-21 04:18:13,901 INFO L290 TraceCheckUtils]: 9: Hoare triple {1675#true} assume !(0 != ~pumpRunning~0); {1677#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:13,902 INFO L290 TraceCheckUtils]: 10: Hoare triple {1677#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret12#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; {1677#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:13,902 INFO L290 TraceCheckUtils]: 11: Hoare triple {1677#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; {1677#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:13,902 INFO L290 TraceCheckUtils]: 12: Hoare triple {1677#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1676#false} is VALID [2022-02-21 04:18:13,902 INFO L290 TraceCheckUtils]: 13: Hoare triple {1676#false} assume { :end_inline_processEnvironment__wrappee__base } true; {1676#false} is VALID [2022-02-21 04:18:13,903 INFO L290 TraceCheckUtils]: 14: Hoare triple {1676#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {1676#false} is VALID [2022-02-21 04:18:13,903 INFO L290 TraceCheckUtils]: 15: Hoare triple {1676#false} assume { :end_inline_processEnvironment } true; {1676#false} is VALID [2022-02-21 04:18:13,903 INFO L290 TraceCheckUtils]: 16: Hoare triple {1676#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret5#1, __utac_acc__Specification4_spec__1_#t~ret6#1, __utac_acc__Specification4_spec__1_~tmp~0#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~0#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; {1676#false} is VALID [2022-02-21 04:18:13,904 INFO L290 TraceCheckUtils]: 17: Hoare triple {1676#false} __utac_acc__Specification4_spec__1_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~0#1 := __utac_acc__Specification4_spec__1_#t~ret5#1;havoc __utac_acc__Specification4_spec__1_#t~ret5#1; {1676#false} is VALID [2022-02-21 04:18:13,904 INFO L290 TraceCheckUtils]: 18: Hoare triple {1676#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0#1); {1676#false} is VALID [2022-02-21 04:18:13,904 INFO L290 TraceCheckUtils]: 19: Hoare triple {1676#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {1676#false} is VALID [2022-02-21 04:18:13,904 INFO L290 TraceCheckUtils]: 20: Hoare triple {1676#false} assume { :end_inline_timeShift } true; {1676#false} is VALID [2022-02-21 04:18:13,904 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 04:18:13,904 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:13,905 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723205231] [2022-02-21 04:18:13,905 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723205231] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:13,905 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:13,905 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:13,905 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445054925] [2022-02-21 04:18:13,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:13,906 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:13,906 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:13,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:13,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:13,907 INFO L87 Difference]: Start difference. First operand 229 states and 304 transitions. cyclomatic complexity: 78 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 04:18:14,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:14,069 INFO L93 Difference]: Finished difference Result 285 states and 361 transitions. [2022-02-21 04:18:14,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:14,069 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 04:18:14,080 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:14,080 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 285 states and 361 transitions. [2022-02-21 04:18:14,087 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 203 [2022-02-21 04:18:14,101 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 285 states to 285 states and 361 transitions. [2022-02-21 04:18:14,101 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 285 [2022-02-21 04:18:14,101 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 285 [2022-02-21 04:18:14,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 285 states and 361 transitions. [2022-02-21 04:18:14,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:14,101 INFO L681 BuchiCegarLoop]: Abstraction has 285 states and 361 transitions. [2022-02-21 04:18:14,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states and 361 transitions. [2022-02-21 04:18:14,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2022-02-21 04:18:14,108 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:14,108 INFO L82 GeneralOperation]: Start isEquivalent. First operand 285 states and 361 transitions. Second operand has 285 states, 285 states have (on average 1.2666666666666666) internal successors, (361), 284 states have internal predecessors, (361), 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 04:18:14,109 INFO L74 IsIncluded]: Start isIncluded. First operand 285 states and 361 transitions. Second operand has 285 states, 285 states have (on average 1.2666666666666666) internal successors, (361), 284 states have internal predecessors, (361), 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 04:18:14,110 INFO L87 Difference]: Start difference. First operand 285 states and 361 transitions. Second operand has 285 states, 285 states have (on average 1.2666666666666666) internal successors, (361), 284 states have internal predecessors, (361), 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 04:18:14,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:14,116 INFO L93 Difference]: Finished difference Result 285 states and 361 transitions. [2022-02-21 04:18:14,116 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 361 transitions. [2022-02-21 04:18:14,117 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:14,117 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:14,117 INFO L74 IsIncluded]: Start isIncluded. First operand has 285 states, 285 states have (on average 1.2666666666666666) internal successors, (361), 284 states have internal predecessors, (361), 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 285 states and 361 transitions. [2022-02-21 04:18:14,118 INFO L87 Difference]: Start difference. First operand has 285 states, 285 states have (on average 1.2666666666666666) internal successors, (361), 284 states have internal predecessors, (361), 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 285 states and 361 transitions. [2022-02-21 04:18:14,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:14,124 INFO L93 Difference]: Finished difference Result 285 states and 361 transitions. [2022-02-21 04:18:14,124 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 361 transitions. [2022-02-21 04:18:14,125 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:14,125 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:14,125 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:14,125 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:14,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 285 states have (on average 1.2666666666666666) internal successors, (361), 284 states have internal predecessors, (361), 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 04:18:14,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 361 transitions. [2022-02-21 04:18:14,131 INFO L704 BuchiCegarLoop]: Abstraction has 285 states and 361 transitions. [2022-02-21 04:18:14,131 INFO L587 BuchiCegarLoop]: Abstraction has 285 states and 361 transitions. [2022-02-21 04:18:14,131 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:14,132 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 285 states and 361 transitions. [2022-02-21 04:18:14,133 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 203 [2022-02-21 04:18:14,133 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:14,133 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:14,134 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:14,134 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:14,134 INFO L791 eck$LassoCheckResult]: Stem: 2151#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(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 2057#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret25#1, main_~retValue_acc~6#1, main_~tmp~7#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 2058#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2089#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 2020#L83 main_#t~ret25#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret25#1;havoc main_#t~ret25#1; 2021#L509 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 2071#L486 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2115#L132-2 [2022-02-21 04:18:14,134 INFO L793 eck$LassoCheckResult]: Loop: 2115#L132-2 assume !false; 2116#L133 assume test_~splverifierCounter~0#1 < 4; 2145#L134 test_~tmp~1#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 2131#L142 assume !(0 != test_~tmp~1#1); 2000#L142-2 test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 2034#L152 assume !(0 != test_~tmp___0~1#1); 2036#L152-2 test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 2039#L162 assume 0 != test_~tmp___2~0#1; 1972#L168-2 assume { :begin_inline_timeShift } true; 1976#L204 assume !(0 != ~pumpRunning~0); 2173#L204-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret12#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 2084#L262 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 2085#L236-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret23#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1; 2088#L606-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; 2123#L611-1 isHighWaterLevel_#t~ret23#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret23#1;havoc isHighWaterLevel_#t~ret23#1; 2037#L382-3 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~2#1 := 0; 2038#L382-5 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 2108#L388-1 processEnvironment__wrappee__highWaterSensor_#t~ret11#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret11#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11#1; 2001#L240-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2003#L228-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2016#L236-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2017#L262-1 assume { :end_inline_processEnvironment } true; 2025#L211-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret5#1, __utac_acc__Specification4_spec__1_#t~ret6#1, __utac_acc__Specification4_spec__1_~tmp~0#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~0#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; 2239#L598 __utac_acc__Specification4_spec__1_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~0#1 := __utac_acc__Specification4_spec__1_#t~ret5#1;havoc __utac_acc__Specification4_spec__1_#t~ret5#1; 2141#L99 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0#1); 2069#L99-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 2070#L221 assume { :end_inline_timeShift } true; 2115#L132-2 [2022-02-21 04:18:14,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:14,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:18:14,135 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:14,135 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561230300] [2022-02-21 04:18:14,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:14,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:14,163 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:14,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:14,181 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:14,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:14,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1041206770, now seen corresponding path program 1 times [2022-02-21 04:18:14,182 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:14,183 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958800672] [2022-02-21 04:18:14,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:14,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:14,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:14,190 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:14,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:14,202 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:14,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:14,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1416494510, now seen corresponding path program 1 times [2022-02-21 04:18:14,203 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:14,203 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569162969] [2022-02-21 04:18:14,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:14,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:14,227 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:14,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:14,242 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:16,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:16 BoogieIcfgContainer [2022-02-21 04:18:16,787 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:16,788 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:16,788 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:16,788 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:16,789 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:12" (3/4) ... [2022-02-21 04:18:16,792 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:16,827 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:16,827 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:16,828 INFO L158 Benchmark]: Toolchain (without parser) took 5934.44ms. Allocated memory was 96.5MB in the beginning and 172.0MB in the end (delta: 75.5MB). Free memory was 63.4MB in the beginning and 69.4MB in the end (delta: -6.0MB). Peak memory consumption was 69.5MB. Max. memory is 16.1GB. [2022-02-21 04:18:16,828 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 96.5MB. Free memory was 51.9MB in the beginning and 51.9MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:16,829 INFO L158 Benchmark]: CACSL2BoogieTranslator took 436.28ms. Allocated memory is still 96.5MB. Free memory was 63.2MB in the beginning and 60.2MB in the end (delta: 2.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:18:16,829 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.30ms. Allocated memory is still 96.5MB. Free memory was 60.2MB in the beginning and 55.7MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:16,829 INFO L158 Benchmark]: Boogie Preprocessor took 37.03ms. Allocated memory is still 96.5MB. Free memory was 55.7MB in the beginning and 52.9MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:16,830 INFO L158 Benchmark]: RCFGBuilder took 621.17ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 52.9MB in the beginning and 73.3MB in the end (delta: -20.4MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2022-02-21 04:18:16,830 INFO L158 Benchmark]: BuchiAutomizer took 4718.76ms. Allocated memory was 117.4MB in the beginning and 172.0MB in the end (delta: 54.5MB). Free memory was 73.3MB in the beginning and 72.4MB in the end (delta: 818.3kB). Peak memory consumption was 63.7MB. Max. memory is 16.1GB. [2022-02-21 04:18:16,830 INFO L158 Benchmark]: Witness Printer took 39.06ms. Allocated memory is still 172.0MB. Free memory was 71.5MB in the beginning and 69.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:16,832 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 0.23ms. Allocated memory is still 96.5MB. Free memory was 51.9MB in the beginning and 51.9MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 436.28ms. Allocated memory is still 96.5MB. Free memory was 63.2MB in the beginning and 60.2MB in the end (delta: 2.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.30ms. Allocated memory is still 96.5MB. Free memory was 60.2MB in the beginning and 55.7MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.03ms. Allocated memory is still 96.5MB. Free memory was 55.7MB in the beginning and 52.9MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 621.17ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 52.9MB in the beginning and 73.3MB in the end (delta: -20.4MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 4718.76ms. Allocated memory was 117.4MB in the beginning and 172.0MB in the end (delta: 54.5MB). Free memory was 73.3MB in the beginning and 72.4MB in the end (delta: 818.3kB). Peak memory consumption was 63.7MB. Max. memory is 16.1GB. * Witness Printer took 39.06ms. Allocated memory is still 172.0MB. Free memory was 71.5MB in the beginning and 69.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 285 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. Construction of modules took 0.0s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 172 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 285 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1102 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1102 mSDsluCounter, 1584 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1114 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 73 IncrementalHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 470 mSDtfsCounter, 73 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: 132]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67a86660=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b296dd5=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@140a25f1=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@eaf1f52=29, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37290d72=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6bb5654f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@711e43dc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e426fc5=0, retValue_acc=1, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70719bc3=0, retValue_acc=1, \result=1, retValue_acc=1, \result=1, retValue_acc=0, tmp=1, tmp=1, tmp=1, tmp___2=29, tmp=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e3dcc26=0, \result=0, tmp=0, head=0, \result=1, retValue_acc=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, \result=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 132]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L197] int pumpRunning = 0; [L198] int systemActive = 1; [L427] int cleanupTimeShifts = 4; [L523] int waterLevel = 1; [L524] int methaneLevelCritical = 0; [L804] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L500] int retValue_acc ; [L501] int tmp ; [L505] FCALL select_helpers() [L506] FCALL select_features() [L507] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L507] RET, EXPR valid_product() [L507] tmp = valid_product() [L509] COND TRUE \read(tmp) [L511] FCALL setup() [L512] CALL runTest() [L494] CALL test() [L123] int splverifierCounter ; [L124] int tmp ; [L125] int tmp___0 ; [L126] int tmp___1 ; [L127] int tmp___2 ; [L130] splverifierCounter = 0 Loop: [L132] COND TRUE 1 [L134] COND TRUE splverifierCounter < 4 [L140] tmp = __VERIFIER_nondet_int() [L142] COND FALSE !(\read(tmp)) [L150] tmp___0 = __VERIFIER_nondet_int() [L152] COND FALSE !(\read(tmp___0)) [L160] tmp___2 = __VERIFIER_nondet_int() [L162] COND TRUE \read(tmp___2) [L177] CALL timeShift() [L204] COND FALSE !(\read(pumpRunning)) [L211] COND TRUE \read(systemActive) [L213] CALL processEnvironment() [L259] int tmp ; [L262] COND FALSE !(\read(pumpRunning)) [L277] CALL processEnvironment__wrappee__highWaterSensor() [L233] int tmp ; [L236] COND TRUE ! pumpRunning [L238] CALL, EXPR isHighWaterLevel() [L374] int retValue_acc ; [L375] int tmp ; [L376] int tmp___0 ; [L380] CALL, EXPR isHighWaterSensorDry() [L603] int retValue_acc ; [L606] COND TRUE waterLevel < 2 [L607] retValue_acc = 1 [L608] return (retValue_acc); [L380] RET, EXPR isHighWaterSensorDry() [L380] tmp = isHighWaterSensorDry() [L382] COND TRUE \read(tmp) [L383] tmp___0 = 0 [L387] retValue_acc = tmp___0 [L388] return (retValue_acc); [L238] RET, EXPR isHighWaterLevel() [L238] tmp = isHighWaterLevel() [L240] COND FALSE !(\read(tmp)) [L246] FCALL processEnvironment__wrappee__base() [L277] RET processEnvironment__wrappee__highWaterSensor() [L213] RET processEnvironment() [L219] CALL __utac_acc__Specification4_spec__1() [L92] int tmp ; [L93] int tmp___0 ; [L97] CALL, EXPR getWaterLevel() [L594] int retValue_acc ; [L597] retValue_acc = waterLevel [L598] return (retValue_acc); [L97] RET, EXPR getWaterLevel() [L97] tmp = getWaterLevel() [L99] COND FALSE !(tmp == 0) [L219] RET __utac_acc__Specification4_spec__1() [L177] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:16,886 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)