./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product49.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 278b945680d29bf571e1aaa42d90b0a6b141ce129976e6e0985d57b09f7f9d7c --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:50,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:50,502 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:50,535 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:50,536 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:50,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:50,539 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:50,541 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:50,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:50,546 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:50,546 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:50,547 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:50,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:50,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:50,550 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:50,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:50,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:50,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:50,555 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:50,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:50,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:50,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:50,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:50,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:50,567 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:50,567 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:50,568 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:50,569 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:50,569 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:50,570 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:50,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:50,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:50,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:50,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:50,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:50,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:50,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:50,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:50,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:50,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:50,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:50,575 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:50,599 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:50,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:50,600 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:50,600 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:50,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:50,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:50,602 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:50,602 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:50,602 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:50,602 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:50,603 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:50,603 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:50,603 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:50,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:50,603 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:50,603 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:50,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:50,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:50,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:50,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:50,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:50,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:50,604 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:50,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:50,605 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:50,606 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:50,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:50,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:50,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:50,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:50,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:50,607 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:50,608 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 278b945680d29bf571e1aaa42d90b0a6b141ce129976e6e0985d57b09f7f9d7c [2022-02-21 04:18:50,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:50,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:50,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:50,827 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:50,828 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:50,828 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c [2022-02-21 04:18:50,884 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f9be4dfe/638245f3529e415e91f17dc5428109a9/FLAGe5f425c66 [2022-02-21 04:18:51,214 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:51,215 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c [2022-02-21 04:18:51,237 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f9be4dfe/638245f3529e415e91f17dc5428109a9/FLAGe5f425c66 [2022-02-21 04:18:51,609 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f9be4dfe/638245f3529e415e91f17dc5428109a9 [2022-02-21 04:18:51,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:51,611 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:51,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:51,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:51,631 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:51,632 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:51" (1/1) ... [2022-02-21 04:18:51,633 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ff86348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:51, skipping insertion in model container [2022-02-21 04:18:51,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:51" (1/1) ... [2022-02-21 04:18:51,638 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:51,675 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:51,915 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c[6886,6899] [2022-02-21 04:18:51,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:51,991 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:52,029 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c[6886,6899] [2022-02-21 04:18:52,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:52,089 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:52,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:52 WrapperNode [2022-02-21 04:18:52,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:52,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:52,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:52,092 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:52,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:52" (1/1) ... [2022-02-21 04:18:52,110 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:52" (1/1) ... [2022-02-21 04:18:52,144 INFO L137 Inliner]: procedures = 57, calls = 157, calls flagged for inlining = 54, calls inlined = 84, statements flattened = 639 [2022-02-21 04:18:52,144 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:52,145 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:52,145 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:52,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:52,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:52" (1/1) ... [2022-02-21 04:18:52,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:52" (1/1) ... [2022-02-21 04:18:52,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:52" (1/1) ... [2022-02-21 04:18:52,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:52" (1/1) ... [2022-02-21 04:18:52,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:52" (1/1) ... [2022-02-21 04:18:52,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:52" (1/1) ... [2022-02-21 04:18:52,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:52" (1/1) ... [2022-02-21 04:18:52,194 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:52,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:52,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:52,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:52,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:52" (1/1) ... [2022-02-21 04:18:52,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:52,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:52,234 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 04:18:52,241 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 04:18:52,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:52,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:52,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:52,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:52,334 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:52,335 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:52,690 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:52,697 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:52,697 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:52,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:52 BoogieIcfgContainer [2022-02-21 04:18:52,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:52,704 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:52,704 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:52,706 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:52,707 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:52,707 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:51" (1/3) ... [2022-02-21 04:18:52,708 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4cf43cc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:52, skipping insertion in model container [2022-02-21 04:18:52,709 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:52,709 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:52" (2/3) ... [2022-02-21 04:18:52,709 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4cf43cc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:52, skipping insertion in model container [2022-02-21 04:18:52,709 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:52,709 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:52" (3/3) ... [2022-02-21 04:18:52,710 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product49.cil.c [2022-02-21 04:18:52,741 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:52,741 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:52,741 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:52,741 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:52,741 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:52,741 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:52,742 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:52,742 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:52,756 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 172 states, 171 states have (on average 1.3742690058479532) internal successors, (235), 171 states have internal predecessors, (235), 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 04:18:52,796 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2022-02-21 04:18:52,797 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:52,797 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:52,801 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:52,801 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:52,801 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:52,802 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 172 states, 171 states have (on average 1.3742690058479532) internal successors, (235), 171 states have internal predecessors, (235), 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 04:18:52,813 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2022-02-21 04:18:52,813 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:52,813 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:52,814 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:52,814 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:52,817 INFO L791 eck$LassoCheckResult]: Stem: 149#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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 47#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 138#L566true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 58#L559true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 62#L574true main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 52#L530true assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 48#L502true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 40#L951true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 147#L275-2true [2022-02-21 04:18:52,818 INFO L793 eck$LassoCheckResult]: Loop: 147#L275-2true assume !false; 4#L276true assume test_~splverifierCounter~0#1 < 4; 168#L277true test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 145#L285true assume !(0 != test_~tmp~4#1); 22#L285-2true test_~tmp___0~2#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 9#L295true assume !(0 != test_~tmp___0~2#1); 33#L295-2true test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 84#L305true assume 0 != test_~tmp___2~0#1; 128#L311-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret51#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 31#L183true __utac_acc__Specification5_spec__2_#t~ret51#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret51#1;havoc __utac_acc__Specification5_spec__2_#t~ret51#1; 36#L961true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 88#L72true assume !(0 != ~pumpRunning~0); 11#L72-2true assume !(0 != ~systemActive~0); 146#L79-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 46#L406true __utac_acc__Specification5_spec__3_#t~ret52#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret52#1;havoc __utac_acc__Specification5_spec__3_#t~ret52#1; 19#L972true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 142#L972-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 93#L89true assume { :end_inline_timeShift } true; 147#L275-2true [2022-02-21 04:18:52,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:52,822 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:18:52,828 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:52,828 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915559304] [2022-02-21 04:18:52,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:52,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:52,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:52,950 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:53,014 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:53,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:53,017 INFO L85 PathProgramCache]: Analyzing trace with hash -2064189716, now seen corresponding path program 1 times [2022-02-21 04:18:53,017 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:53,019 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138962717] [2022-02-21 04:18:53,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:53,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:53,042 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:53,051 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:53,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:53,054 INFO L85 PathProgramCache]: Analyzing trace with hash 891425173, now seen corresponding path program 1 times [2022-02-21 04:18:53,054 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:53,054 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138426543] [2022-02-21 04:18:53,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:53,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:53,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:53,191 INFO L290 TraceCheckUtils]: 0: Hoare triple {180#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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; {182#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:53,192 INFO L290 TraceCheckUtils]: 1: Hoare triple {182#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; {182#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:53,192 INFO L290 TraceCheckUtils]: 2: Hoare triple {182#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {182#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:53,193 INFO L290 TraceCheckUtils]: 3: Hoare triple {182#(= 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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; {183#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:18:53,193 INFO L290 TraceCheckUtils]: 4: Hoare triple {183#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret26#1;havoc main_#t~ret26#1; {184#(= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0)} is VALID [2022-02-21 04:18:53,194 INFO L290 TraceCheckUtils]: 5: Hoare triple {184#(= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0)} assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; {185#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,194 INFO L290 TraceCheckUtils]: 6: Hoare triple {185#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; {185#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,195 INFO L290 TraceCheckUtils]: 7: Hoare triple {185#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {185#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,195 INFO L290 TraceCheckUtils]: 8: Hoare triple {185#(not (= 0 ~systemActive~0))} assume !false; {185#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,196 INFO L290 TraceCheckUtils]: 9: Hoare triple {185#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {185#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,196 INFO L290 TraceCheckUtils]: 10: Hoare triple {185#(not (= 0 ~systemActive~0))} test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; {185#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,197 INFO L290 TraceCheckUtils]: 11: Hoare triple {185#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~4#1); {185#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,197 INFO L290 TraceCheckUtils]: 12: Hoare triple {185#(not (= 0 ~systemActive~0))} test_~tmp___0~2#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; {185#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,198 INFO L290 TraceCheckUtils]: 13: Hoare triple {185#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~2#1); {185#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,198 INFO L290 TraceCheckUtils]: 14: Hoare triple {185#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {185#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,198 INFO L290 TraceCheckUtils]: 15: Hoare triple {185#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {185#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,199 INFO L290 TraceCheckUtils]: 16: Hoare triple {185#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret51#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; {185#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,199 INFO L290 TraceCheckUtils]: 17: Hoare triple {185#(not (= 0 ~systemActive~0))} __utac_acc__Specification5_spec__2_#t~ret51#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret51#1;havoc __utac_acc__Specification5_spec__2_#t~ret51#1; {185#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,200 INFO L290 TraceCheckUtils]: 18: Hoare triple {185#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {185#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,200 INFO L290 TraceCheckUtils]: 19: Hoare triple {185#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {185#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:53,201 INFO L290 TraceCheckUtils]: 20: Hoare triple {185#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {181#false} is VALID [2022-02-21 04:18:53,201 INFO L290 TraceCheckUtils]: 21: Hoare triple {181#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; {181#false} is VALID [2022-02-21 04:18:53,201 INFO L290 TraceCheckUtils]: 22: Hoare triple {181#false} __utac_acc__Specification5_spec__3_#t~ret52#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret52#1;havoc __utac_acc__Specification5_spec__3_#t~ret52#1; {181#false} is VALID [2022-02-21 04:18:53,202 INFO L290 TraceCheckUtils]: 23: Hoare triple {181#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); {181#false} is VALID [2022-02-21 04:18:53,203 INFO L290 TraceCheckUtils]: 24: Hoare triple {181#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {181#false} is VALID [2022-02-21 04:18:53,203 INFO L290 TraceCheckUtils]: 25: Hoare triple {181#false} assume { :end_inline_timeShift } true; {181#false} is VALID [2022-02-21 04:18:53,204 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 04:18:53,204 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:53,205 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138426543] [2022-02-21 04:18:53,206 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138426543] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:53,206 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:53,206 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:53,207 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682182161] [2022-02-21 04:18:53,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:53,343 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:53,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:18:53,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:18:53,380 INFO L87 Difference]: Start difference. First operand has 172 states, 171 states have (on average 1.3742690058479532) internal successors, (235), 171 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:53,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:53,754 INFO L93 Difference]: Finished difference Result 169 states and 221 transitions. [2022-02-21 04:18:53,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:18:53,756 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:53,778 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:53,782 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 169 states and 221 transitions. [2022-02-21 04:18:53,806 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2022-02-21 04:18:53,815 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 169 states to 159 states and 211 transitions. [2022-02-21 04:18:53,816 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 159 [2022-02-21 04:18:53,816 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 159 [2022-02-21 04:18:53,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 211 transitions. [2022-02-21 04:18:53,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:53,817 INFO L681 BuchiCegarLoop]: Abstraction has 159 states and 211 transitions. [2022-02-21 04:18:53,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 211 transitions. [2022-02-21 04:18:53,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2022-02-21 04:18:53,838 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:53,839 INFO L82 GeneralOperation]: Start isEquivalent. First operand 159 states and 211 transitions. Second operand has 159 states, 159 states have (on average 1.3270440251572326) internal successors, (211), 158 states have internal predecessors, (211), 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 04:18:53,840 INFO L74 IsIncluded]: Start isIncluded. First operand 159 states and 211 transitions. Second operand has 159 states, 159 states have (on average 1.3270440251572326) internal successors, (211), 158 states have internal predecessors, (211), 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 04:18:53,841 INFO L87 Difference]: Start difference. First operand 159 states and 211 transitions. Second operand has 159 states, 159 states have (on average 1.3270440251572326) internal successors, (211), 158 states have internal predecessors, (211), 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 04:18:53,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:53,846 INFO L93 Difference]: Finished difference Result 159 states and 211 transitions. [2022-02-21 04:18:53,846 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 211 transitions. [2022-02-21 04:18:53,847 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:53,847 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:53,848 INFO L74 IsIncluded]: Start isIncluded. First operand has 159 states, 159 states have (on average 1.3270440251572326) internal successors, (211), 158 states have internal predecessors, (211), 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 159 states and 211 transitions. [2022-02-21 04:18:53,848 INFO L87 Difference]: Start difference. First operand has 159 states, 159 states have (on average 1.3270440251572326) internal successors, (211), 158 states have internal predecessors, (211), 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 159 states and 211 transitions. [2022-02-21 04:18:53,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:53,852 INFO L93 Difference]: Finished difference Result 159 states and 211 transitions. [2022-02-21 04:18:53,852 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 211 transitions. [2022-02-21 04:18:53,853 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:53,853 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:53,853 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:53,853 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:53,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 159 states have (on average 1.3270440251572326) internal successors, (211), 158 states have internal predecessors, (211), 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 04:18:53,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 211 transitions. [2022-02-21 04:18:53,858 INFO L704 BuchiCegarLoop]: Abstraction has 159 states and 211 transitions. [2022-02-21 04:18:53,858 INFO L587 BuchiCegarLoop]: Abstraction has 159 states and 211 transitions. [2022-02-21 04:18:53,859 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:53,859 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 159 states and 211 transitions. [2022-02-21 04:18:53,860 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2022-02-21 04:18:53,860 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:53,860 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:53,860 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:53,860 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:53,861 INFO L791 eck$LassoCheckResult]: Stem: 513#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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 437#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 438#L566 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 448#L559 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 449#L574 main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 442#L530 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 439#L502 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 424#L951 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 425#L275-2 [2022-02-21 04:18:53,861 INFO L793 eck$LassoCheckResult]: Loop: 425#L275-2 assume !false; 359#L276 assume test_~splverifierCounter~0#1 < 4; 360#L277 test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 511#L285 assume !(0 != test_~tmp~4#1); 393#L285-2 test_~tmp___0~2#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 371#L295 assume !(0 != test_~tmp___0~2#1); 373#L295-2 test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 414#L305 assume 0 != test_~tmp___2~0#1; 458#L311-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret51#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 408#L183 __utac_acc__Specification5_spec__2_#t~ret51#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret51#1;havoc __utac_acc__Specification5_spec__2_#t~ret51#1; 409#L961 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 417#L72 assume !(0 != ~pumpRunning~0); 374#L72-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 375#L130 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 475#L104-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 446#L96-3 assume { :end_inline_processEnvironment__wrappee__base } true; 404#L104-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 480#L130-1 assume { :end_inline_processEnvironment } true; 510#L79-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 434#L406 __utac_acc__Specification5_spec__3_#t~ret52#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret52#1;havoc __utac_acc__Specification5_spec__3_#t~ret52#1; 387#L972 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 389#L972-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 489#L89 assume { :end_inline_timeShift } true; 425#L275-2 [2022-02-21 04:18:53,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:53,862 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:18:53,862 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:53,862 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280659201] [2022-02-21 04:18:53,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:53,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:53,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:53,873 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:53,884 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:53,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:53,885 INFO L85 PathProgramCache]: Analyzing trace with hash -10986483, now seen corresponding path program 1 times [2022-02-21 04:18:53,885 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:53,885 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275562439] [2022-02-21 04:18:53,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:53,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:53,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:53,899 INFO L290 TraceCheckUtils]: 0: Hoare triple {841#true} assume !false; {841#true} is VALID [2022-02-21 04:18:53,899 INFO L290 TraceCheckUtils]: 1: Hoare triple {841#true} assume test_~splverifierCounter~0#1 < 4; {841#true} is VALID [2022-02-21 04:18:53,900 INFO L290 TraceCheckUtils]: 2: Hoare triple {841#true} test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; {841#true} is VALID [2022-02-21 04:18:53,900 INFO L290 TraceCheckUtils]: 3: Hoare triple {841#true} assume !(0 != test_~tmp~4#1); {841#true} is VALID [2022-02-21 04:18:53,900 INFO L290 TraceCheckUtils]: 4: Hoare triple {841#true} test_~tmp___0~2#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; {841#true} is VALID [2022-02-21 04:18:53,900 INFO L290 TraceCheckUtils]: 5: Hoare triple {841#true} assume !(0 != test_~tmp___0~2#1); {841#true} is VALID [2022-02-21 04:18:53,900 INFO L290 TraceCheckUtils]: 6: Hoare triple {841#true} test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {841#true} is VALID [2022-02-21 04:18:53,900 INFO L290 TraceCheckUtils]: 7: Hoare triple {841#true} assume 0 != test_~tmp___2~0#1; {841#true} is VALID [2022-02-21 04:18:53,901 INFO L290 TraceCheckUtils]: 8: Hoare triple {841#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret51#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; {841#true} is VALID [2022-02-21 04:18:53,901 INFO L290 TraceCheckUtils]: 9: Hoare triple {841#true} __utac_acc__Specification5_spec__2_#t~ret51#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret51#1;havoc __utac_acc__Specification5_spec__2_#t~ret51#1; {841#true} is VALID [2022-02-21 04:18:53,901 INFO L290 TraceCheckUtils]: 10: Hoare triple {841#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {841#true} is VALID [2022-02-21 04:18:53,901 INFO L290 TraceCheckUtils]: 11: Hoare triple {841#true} assume !(0 != ~pumpRunning~0); {843#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:53,902 INFO L290 TraceCheckUtils]: 12: Hoare triple {843#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; {843#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:53,902 INFO L290 TraceCheckUtils]: 13: Hoare triple {843#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; {843#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:53,902 INFO L290 TraceCheckUtils]: 14: Hoare triple {843#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {842#false} is VALID [2022-02-21 04:18:53,903 INFO L290 TraceCheckUtils]: 15: Hoare triple {842#false} assume { :end_inline_processEnvironment__wrappee__base } true; {842#false} is VALID [2022-02-21 04:18:53,903 INFO L290 TraceCheckUtils]: 16: Hoare triple {842#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {842#false} is VALID [2022-02-21 04:18:53,903 INFO L290 TraceCheckUtils]: 17: Hoare triple {842#false} assume { :end_inline_processEnvironment } true; {842#false} is VALID [2022-02-21 04:18:53,903 INFO L290 TraceCheckUtils]: 18: Hoare triple {842#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; {842#false} is VALID [2022-02-21 04:18:53,903 INFO L290 TraceCheckUtils]: 19: Hoare triple {842#false} __utac_acc__Specification5_spec__3_#t~ret52#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret52#1;havoc __utac_acc__Specification5_spec__3_#t~ret52#1; {842#false} is VALID [2022-02-21 04:18:53,903 INFO L290 TraceCheckUtils]: 20: Hoare triple {842#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); {842#false} is VALID [2022-02-21 04:18:53,904 INFO L290 TraceCheckUtils]: 21: Hoare triple {842#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {842#false} is VALID [2022-02-21 04:18:53,907 INFO L290 TraceCheckUtils]: 22: Hoare triple {842#false} assume { :end_inline_timeShift } true; {842#false} is VALID [2022-02-21 04:18:53,907 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 04:18:53,907 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:53,907 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275562439] [2022-02-21 04:18:53,908 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275562439] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:53,908 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:53,908 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:53,908 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751762799] [2022-02-21 04:18:53,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:53,909 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:53,909 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:53,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:53,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:53,909 INFO L87 Difference]: Start difference. First operand 159 states and 211 transitions. cyclomatic complexity: 54 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 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 04:18:54,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:54,085 INFO L93 Difference]: Finished difference Result 223 states and 285 transitions. [2022-02-21 04:18:54,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:54,086 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 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 04:18:54,098 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 04:18:54,099 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 223 states and 285 transitions. [2022-02-21 04:18:54,105 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 154 [2022-02-21 04:18:54,110 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 223 states to 223 states and 285 transitions. [2022-02-21 04:18:54,110 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 223 [2022-02-21 04:18:54,110 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 223 [2022-02-21 04:18:54,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 223 states and 285 transitions. [2022-02-21 04:18:54,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:54,111 INFO L681 BuchiCegarLoop]: Abstraction has 223 states and 285 transitions. [2022-02-21 04:18:54,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states and 285 transitions. [2022-02-21 04:18:54,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2022-02-21 04:18:54,117 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:54,118 INFO L82 GeneralOperation]: Start isEquivalent. First operand 223 states and 285 transitions. Second operand has 223 states, 223 states have (on average 1.2780269058295963) internal successors, (285), 222 states have internal predecessors, (285), 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 04:18:54,118 INFO L74 IsIncluded]: Start isIncluded. First operand 223 states and 285 transitions. Second operand has 223 states, 223 states have (on average 1.2780269058295963) internal successors, (285), 222 states have internal predecessors, (285), 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 04:18:54,118 INFO L87 Difference]: Start difference. First operand 223 states and 285 transitions. Second operand has 223 states, 223 states have (on average 1.2780269058295963) internal successors, (285), 222 states have internal predecessors, (285), 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 04:18:54,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:54,124 INFO L93 Difference]: Finished difference Result 223 states and 285 transitions. [2022-02-21 04:18:54,124 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 285 transitions. [2022-02-21 04:18:54,124 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:54,125 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:54,125 INFO L74 IsIncluded]: Start isIncluded. First operand has 223 states, 223 states have (on average 1.2780269058295963) internal successors, (285), 222 states have internal predecessors, (285), 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 223 states and 285 transitions. [2022-02-21 04:18:54,126 INFO L87 Difference]: Start difference. First operand has 223 states, 223 states have (on average 1.2780269058295963) internal successors, (285), 222 states have internal predecessors, (285), 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 223 states and 285 transitions. [2022-02-21 04:18:54,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:54,131 INFO L93 Difference]: Finished difference Result 223 states and 285 transitions. [2022-02-21 04:18:54,131 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 285 transitions. [2022-02-21 04:18:54,131 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:54,131 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:54,132 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:54,132 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:54,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 223 states have (on average 1.2780269058295963) internal successors, (285), 222 states have internal predecessors, (285), 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 04:18:54,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 285 transitions. [2022-02-21 04:18:54,137 INFO L704 BuchiCegarLoop]: Abstraction has 223 states and 285 transitions. [2022-02-21 04:18:54,137 INFO L587 BuchiCegarLoop]: Abstraction has 223 states and 285 transitions. [2022-02-21 04:18:54,137 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:54,137 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 223 states and 285 transitions. [2022-02-21 04:18:54,138 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 154 [2022-02-21 04:18:54,138 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:54,139 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:54,139 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:54,139 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:54,139 INFO L791 eck$LassoCheckResult]: Stem: 1227#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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 1142#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 1143#L566 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1152#L559 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 1153#L574 main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 1148#L530 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 1144#L502 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1131#L951 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1132#L275-2 [2022-02-21 04:18:54,140 INFO L793 eck$LassoCheckResult]: Loop: 1132#L275-2 assume !false; 1067#L276 assume test_~splverifierCounter~0#1 < 4; 1068#L277 test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 1224#L285 assume !(0 != test_~tmp~4#1); 1101#L285-2 test_~tmp___0~2#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 1077#L295 assume !(0 != test_~tmp___0~2#1); 1079#L295-2 test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 1120#L305 assume 0 != test_~tmp___2~0#1; 1161#L311-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret51#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 1116#L183 __utac_acc__Specification5_spec__2_#t~ret51#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret51#1;havoc __utac_acc__Specification5_spec__2_#t~ret51#1; 1117#L961 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1125#L72 assume !(0 != ~pumpRunning~0); 1082#L72-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 1083#L130 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 1177#L104-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 1173#L414-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 1174#L419-1 isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1; 1199#L232-3 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1108#L232-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1088#L238-1 processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 1074#L108-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1076#L96-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1112#L104-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1185#L130-1 assume { :end_inline_processEnvironment } true; 1225#L79-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 1141#L406 __utac_acc__Specification5_spec__3_#t~ret52#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret52#1;havoc __utac_acc__Specification5_spec__3_#t~ret52#1; 1095#L972 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 1097#L972-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1194#L89 assume { :end_inline_timeShift } true; 1132#L275-2 [2022-02-21 04:18:54,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:54,140 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:18:54,140 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:54,140 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233188305] [2022-02-21 04:18:54,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:54,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:54,149 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:54,157 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:54,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:54,158 INFO L85 PathProgramCache]: Analyzing trace with hash -555437115, now seen corresponding path program 1 times [2022-02-21 04:18:54,158 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:54,158 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559976810] [2022-02-21 04:18:54,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:54,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:54,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:54,208 INFO L290 TraceCheckUtils]: 0: Hoare triple {1741#true} assume !false; {1741#true} is VALID [2022-02-21 04:18:54,208 INFO L290 TraceCheckUtils]: 1: Hoare triple {1741#true} assume test_~splverifierCounter~0#1 < 4; {1741#true} is VALID [2022-02-21 04:18:54,209 INFO L290 TraceCheckUtils]: 2: Hoare triple {1741#true} test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; {1741#true} is VALID [2022-02-21 04:18:54,209 INFO L290 TraceCheckUtils]: 3: Hoare triple {1741#true} assume !(0 != test_~tmp~4#1); {1741#true} is VALID [2022-02-21 04:18:54,209 INFO L290 TraceCheckUtils]: 4: Hoare triple {1741#true} test_~tmp___0~2#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; {1741#true} is VALID [2022-02-21 04:18:54,209 INFO L290 TraceCheckUtils]: 5: Hoare triple {1741#true} assume !(0 != test_~tmp___0~2#1); {1741#true} is VALID [2022-02-21 04:18:54,209 INFO L290 TraceCheckUtils]: 6: Hoare triple {1741#true} test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {1741#true} is VALID [2022-02-21 04:18:54,209 INFO L290 TraceCheckUtils]: 7: Hoare triple {1741#true} assume 0 != test_~tmp___2~0#1; {1741#true} is VALID [2022-02-21 04:18:54,209 INFO L290 TraceCheckUtils]: 8: Hoare triple {1741#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret51#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; {1741#true} is VALID [2022-02-21 04:18:54,209 INFO L290 TraceCheckUtils]: 9: Hoare triple {1741#true} __utac_acc__Specification5_spec__2_#t~ret51#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret51#1;havoc __utac_acc__Specification5_spec__2_#t~ret51#1; {1741#true} is VALID [2022-02-21 04:18:54,209 INFO L290 TraceCheckUtils]: 10: Hoare triple {1741#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {1741#true} is VALID [2022-02-21 04:18:54,209 INFO L290 TraceCheckUtils]: 11: Hoare triple {1741#true} assume !(0 != ~pumpRunning~0); {1741#true} is VALID [2022-02-21 04:18:54,210 INFO L290 TraceCheckUtils]: 12: Hoare triple {1741#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; {1741#true} is VALID [2022-02-21 04:18:54,210 INFO L290 TraceCheckUtils]: 13: Hoare triple {1741#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; {1741#true} is VALID [2022-02-21 04:18:54,210 INFO L290 TraceCheckUtils]: 14: Hoare triple {1741#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; {1741#true} is VALID [2022-02-21 04:18:54,213 INFO L290 TraceCheckUtils]: 15: Hoare triple {1741#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; {1743#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:54,213 INFO L290 TraceCheckUtils]: 16: Hoare triple {1743#(not (= 2 ~waterLevel~0))} isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1; {1743#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:54,214 INFO L290 TraceCheckUtils]: 17: Hoare triple {1743#(not (= 2 ~waterLevel~0))} assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; {1743#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:54,214 INFO L290 TraceCheckUtils]: 18: Hoare triple {1743#(not (= 2 ~waterLevel~0))} isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; {1743#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:54,214 INFO L290 TraceCheckUtils]: 19: Hoare triple {1743#(not (= 2 ~waterLevel~0))} processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; {1743#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:54,214 INFO L290 TraceCheckUtils]: 20: Hoare triple {1743#(not (= 2 ~waterLevel~0))} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {1743#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:54,215 INFO L290 TraceCheckUtils]: 21: Hoare triple {1743#(not (= 2 ~waterLevel~0))} assume { :end_inline_processEnvironment__wrappee__base } true; {1743#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:54,215 INFO L290 TraceCheckUtils]: 22: Hoare triple {1743#(not (= 2 ~waterLevel~0))} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {1743#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:54,215 INFO L290 TraceCheckUtils]: 23: Hoare triple {1743#(not (= 2 ~waterLevel~0))} assume { :end_inline_processEnvironment } true; {1743#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:54,216 INFO L290 TraceCheckUtils]: 24: Hoare triple {1743#(not (= 2 ~waterLevel~0))} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; {1744#(not (= |ULTIMATE.start_getWaterLevel_#res#1| 2))} is VALID [2022-02-21 04:18:54,216 INFO L290 TraceCheckUtils]: 25: Hoare triple {1744#(not (= |ULTIMATE.start_getWaterLevel_#res#1| 2))} __utac_acc__Specification5_spec__3_#t~ret52#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret52#1;havoc __utac_acc__Specification5_spec__3_#t~ret52#1; {1745#(not (= 2 |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~9#1|))} is VALID [2022-02-21 04:18:54,216 INFO L290 TraceCheckUtils]: 26: Hoare triple {1745#(not (= 2 |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~9#1|))} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); {1742#false} is VALID [2022-02-21 04:18:54,217 INFO L290 TraceCheckUtils]: 27: Hoare triple {1742#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {1742#false} is VALID [2022-02-21 04:18:54,217 INFO L290 TraceCheckUtils]: 28: Hoare triple {1742#false} assume { :end_inline_timeShift } true; {1742#false} is VALID [2022-02-21 04:18:54,217 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 04:18:54,217 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:54,217 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559976810] [2022-02-21 04:18:54,217 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559976810] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:54,217 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:54,217 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:54,217 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368962552] [2022-02-21 04:18:54,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:54,218 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:54,218 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:54,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:54,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:54,218 INFO L87 Difference]: Start difference. First operand 223 states and 285 transitions. cyclomatic complexity: 64 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:55,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:55,159 INFO L93 Difference]: Finished difference Result 999 states and 1274 transitions. [2022-02-21 04:18:55,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:18:55,159 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:55,176 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:55,177 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 999 states and 1274 transitions. [2022-02-21 04:18:55,211 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 685 [2022-02-21 04:18:55,244 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 999 states to 999 states and 1274 transitions. [2022-02-21 04:18:55,245 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 999 [2022-02-21 04:18:55,245 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 999 [2022-02-21 04:18:55,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 999 states and 1274 transitions. [2022-02-21 04:18:55,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:55,247 INFO L681 BuchiCegarLoop]: Abstraction has 999 states and 1274 transitions. [2022-02-21 04:18:55,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states and 1274 transitions. [2022-02-21 04:18:55,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 435. [2022-02-21 04:18:55,257 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:55,258 INFO L82 GeneralOperation]: Start isEquivalent. First operand 999 states and 1274 transitions. Second operand has 435 states, 435 states have (on average 1.264367816091954) internal successors, (550), 434 states have internal predecessors, (550), 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 04:18:55,259 INFO L74 IsIncluded]: Start isIncluded. First operand 999 states and 1274 transitions. Second operand has 435 states, 435 states have (on average 1.264367816091954) internal successors, (550), 434 states have internal predecessors, (550), 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 04:18:55,260 INFO L87 Difference]: Start difference. First operand 999 states and 1274 transitions. Second operand has 435 states, 435 states have (on average 1.264367816091954) internal successors, (550), 434 states have internal predecessors, (550), 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 04:18:55,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:55,288 INFO L93 Difference]: Finished difference Result 999 states and 1274 transitions. [2022-02-21 04:18:55,289 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1274 transitions. [2022-02-21 04:18:55,290 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:55,290 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:55,291 INFO L74 IsIncluded]: Start isIncluded. First operand has 435 states, 435 states have (on average 1.264367816091954) internal successors, (550), 434 states have internal predecessors, (550), 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 999 states and 1274 transitions. [2022-02-21 04:18:55,292 INFO L87 Difference]: Start difference. First operand has 435 states, 435 states have (on average 1.264367816091954) internal successors, (550), 434 states have internal predecessors, (550), 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 999 states and 1274 transitions. [2022-02-21 04:18:55,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:55,322 INFO L93 Difference]: Finished difference Result 999 states and 1274 transitions. [2022-02-21 04:18:55,322 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1274 transitions. [2022-02-21 04:18:55,324 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:55,324 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:55,324 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:55,324 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:55,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 435 states have (on average 1.264367816091954) internal successors, (550), 434 states have internal predecessors, (550), 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 04:18:55,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 550 transitions. [2022-02-21 04:18:55,333 INFO L704 BuchiCegarLoop]: Abstraction has 435 states and 550 transitions. [2022-02-21 04:18:55,333 INFO L587 BuchiCegarLoop]: Abstraction has 435 states and 550 transitions. [2022-02-21 04:18:55,333 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:18:55,333 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 435 states and 550 transitions. [2022-02-21 04:18:55,335 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 306 [2022-02-21 04:18:55,335 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:55,335 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:55,336 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:55,336 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:55,336 INFO L791 eck$LassoCheckResult]: Stem: 2936#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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 2834#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 2835#L566 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2844#L559 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 2845#L574 main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 2839#L530 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 2836#L502 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2821#L951 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2822#L275-2 [2022-02-21 04:18:55,336 INFO L793 eck$LassoCheckResult]: Loop: 2822#L275-2 assume !false; 3143#L276 assume test_~splverifierCounter~0#1 < 4; 3144#L277 test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 3162#L285 assume !(0 != test_~tmp~4#1); 3160#L285-2 test_~tmp___0~2#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 3158#L295 assume !(0 != test_~tmp___0~2#1); 3156#L295-2 test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 3151#L305 assume 0 != test_~tmp___2~0#1; 3150#L311-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret51#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 3149#L183 __utac_acc__Specification5_spec__2_#t~ret51#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret51#1;havoc __utac_acc__Specification5_spec__2_#t~ret51#1; 3148#L961 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 3140#L72 assume !(0 != ~pumpRunning~0); 3138#L72-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 3032#L130 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 3029#L104-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 3027#L414-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 2865#L419-1 isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1; 3025#L232-3 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 3023#L232-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 3021#L238-1 processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 3018#L108-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3019#L96-2 assume { :end_inline_processEnvironment__wrappee__base } true; 3167#L104-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3165#L130-1 assume { :end_inline_processEnvironment } true; 2931#L79-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 2932#L406 __utac_acc__Specification5_spec__3_#t~ret52#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret52#1;havoc __utac_acc__Specification5_spec__3_#t~ret52#1; 2784#L972 assume 2 != __utac_acc__Specification5_spec__3_~tmp~9#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 2785#L183-1 __utac_acc__Specification5_spec__3_#t~ret53#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~3#1 := __utac_acc__Specification5_spec__3_#t~ret53#1;havoc __utac_acc__Specification5_spec__3_#t~ret53#1; 2915#L976 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3#1); 3146#L972-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 3145#L89 assume { :end_inline_timeShift } true; 2822#L275-2 [2022-02-21 04:18:55,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:55,337 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-02-21 04:18:55,337 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:55,337 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002874268] [2022-02-21 04:18:55,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:55,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:55,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:55,346 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:55,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:55,354 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:55,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:55,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1218219296, now seen corresponding path program 1 times [2022-02-21 04:18:55,355 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:55,355 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072963551] [2022-02-21 04:18:55,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:55,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:55,361 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:55,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:55,366 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:55,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:55,367 INFO L85 PathProgramCache]: Analyzing trace with hash -2030259497, now seen corresponding path program 1 times [2022-02-21 04:18:55,367 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:55,368 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884409635] [2022-02-21 04:18:55,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:55,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:55,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:55,378 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:55,391 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:58,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:58 BoogieIcfgContainer [2022-02-21 04:18:58,092 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:58,092 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:58,092 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:58,093 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:58,093 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:52" (3/4) ... [2022-02-21 04:18:58,095 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:58,126 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:58,128 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:58,129 INFO L158 Benchmark]: Toolchain (without parser) took 6517.42ms. Allocated memory was 98.6MB in the beginning and 197.1MB in the end (delta: 98.6MB). Free memory was 66.5MB in the beginning and 89.8MB in the end (delta: -23.3MB). Peak memory consumption was 76.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:58,129 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 98.6MB. Free memory was 52.1MB in the beginning and 52.0MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:58,129 INFO L158 Benchmark]: CACSL2BoogieTranslator took 473.70ms. Allocated memory was 98.6MB in the beginning and 144.7MB in the end (delta: 46.1MB). Free memory was 66.2MB in the beginning and 107.9MB in the end (delta: -41.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:18:58,130 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.94ms. Allocated memory is still 144.7MB. Free memory was 107.9MB in the beginning and 103.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:58,130 INFO L158 Benchmark]: Boogie Preprocessor took 55.31ms. Allocated memory is still 144.7MB. Free memory was 103.7MB in the beginning and 100.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:58,130 INFO L158 Benchmark]: RCFGBuilder took 502.61ms. Allocated memory is still 144.7MB. Free memory was 100.9MB in the beginning and 74.3MB in the end (delta: 26.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-02-21 04:18:58,130 INFO L158 Benchmark]: BuchiAutomizer took 5387.90ms. Allocated memory was 144.7MB in the beginning and 197.1MB in the end (delta: 52.4MB). Free memory was 74.3MB in the beginning and 93.0MB in the end (delta: -18.7MB). Peak memory consumption was 71.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:58,131 INFO L158 Benchmark]: Witness Printer took 35.40ms. Allocated memory is still 197.1MB. Free memory was 93.0MB in the beginning and 89.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:58,132 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 0.11ms. Allocated memory is still 98.6MB. Free memory was 52.1MB in the beginning and 52.0MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 473.70ms. Allocated memory was 98.6MB in the beginning and 144.7MB in the end (delta: 46.1MB). Free memory was 66.2MB in the beginning and 107.9MB in the end (delta: -41.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.94ms. Allocated memory is still 144.7MB. Free memory was 107.9MB in the beginning and 103.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.31ms. Allocated memory is still 144.7MB. Free memory was 103.7MB in the beginning and 100.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 502.61ms. Allocated memory is still 144.7MB. Free memory was 100.9MB in the beginning and 74.3MB in the end (delta: 26.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 5387.90ms. Allocated memory was 144.7MB in the beginning and 197.1MB in the end (delta: 52.4MB). Free memory was 74.3MB in the beginning and 93.0MB in the end (delta: -18.7MB). Peak memory consumption was 71.2MB. Max. memory is 16.1GB. * Witness Printer took 35.40ms. Allocated memory is still 197.1MB. Free memory was 93.0MB in the beginning and 89.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 435 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.3s. Construction of modules took 0.1s. Büchi inclusion checks took 1.4s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 564 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 435 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1807 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1807 mSDsluCounter, 1847 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1074 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 191 IncrementalHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 773 mSDtfsCounter, 191 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 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: 275]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ce4a2f0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bd6e709=0, tmp___0=0, NULL=0, head=0, pumpRunning=0, tmp___0=0, NULL=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1eeb59a3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@663052b5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40b52f5c=0, methaneLevelCritical=0, tmp=1, tmp=1, retValue_acc=1, retValue_acc=1, \result=1, retValue_acc=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5505115b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6cbfb547=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43d061ad=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@558946bd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79a234b4=0, tmp___2=29, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a881e65=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, tmp=1, \result=0, tmp=0, tmp___0=0, head=0, \result=1, tmp___1=0, retValue_acc=1, NULL=0, waterLevel=1, systemActive=1, tmp=0, \result=0, tmp=0, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 275]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L60] int pumpRunning = 0; [L61] int systemActive = 1; [L331] int waterLevel = 1; [L332] int methaneLevelCritical = 0; [L443] int cleanupTimeShifts = 4; [L748] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L945] int switchedOnBeforeTS ; [L521] int retValue_acc ; [L522] int tmp ; [L526] FCALL select_helpers() [L527] FCALL select_features() [L528] CALL, EXPR valid_product() [L570] int retValue_acc ; [L573] retValue_acc = 1 [L574] return (retValue_acc); [L528] RET, EXPR valid_product() [L528] tmp = valid_product() [L530] COND TRUE \read(tmp) [L532] FCALL setup() [L533] CALL runTest() [L511] CALL __utac_acc__Specification5_spec__1() [L950] switchedOnBeforeTS = 0 [L511] RET __utac_acc__Specification5_spec__1() [L512] CALL test() [L266] int splverifierCounter ; [L267] int tmp ; [L268] int tmp___0 ; [L269] int tmp___1 ; [L270] int tmp___2 ; [L273] splverifierCounter = 0 Loop: [L275] COND TRUE 1 [L277] COND TRUE splverifierCounter < 4 [L283] tmp = __VERIFIER_nondet_int() [L285] COND FALSE !(\read(tmp)) [L293] tmp___0 = __VERIFIER_nondet_int() [L295] COND FALSE !(\read(tmp___0)) [L303] tmp___2 = __VERIFIER_nondet_int() [L305] COND TRUE \read(tmp___2) [L318] CALL timeShift() [L70] CALL __utac_acc__Specification5_spec__2() [L959] CALL, EXPR isPumpRunning() [L179] int retValue_acc ; [L182] retValue_acc = pumpRunning [L183] return (retValue_acc); [L959] RET, EXPR isPumpRunning() [L959] switchedOnBeforeTS = isPumpRunning() [L70] RET __utac_acc__Specification5_spec__2() [L72] COND FALSE !(\read(pumpRunning)) [L79] COND TRUE \read(systemActive) [L81] CALL processEnvironment() [L127] int tmp ; [L130] COND FALSE !(\read(pumpRunning)) [L145] CALL processEnvironment__wrappee__highWaterSensor() [L101] int tmp ; [L104] COND TRUE ! pumpRunning [L106] CALL, EXPR isHighWaterLevel() [L224] int retValue_acc ; [L225] int tmp ; [L226] int tmp___0 ; [L230] CALL, EXPR isHighWaterSensorDry() [L411] int retValue_acc ; [L414] COND TRUE waterLevel < 2 [L415] retValue_acc = 1 [L416] return (retValue_acc); [L230] RET, EXPR isHighWaterSensorDry() [L230] tmp = isHighWaterSensorDry() [L232] COND TRUE \read(tmp) [L233] tmp___0 = 0 [L237] retValue_acc = tmp___0 [L238] return (retValue_acc); [L106] RET, EXPR isHighWaterLevel() [L106] tmp = isHighWaterLevel() [L108] COND FALSE !(\read(tmp)) [L114] FCALL processEnvironment__wrappee__base() [L145] RET processEnvironment__wrappee__highWaterSensor() [L81] RET processEnvironment() [L87] CALL __utac_acc__Specification5_spec__3() [L965] int tmp ; [L966] int tmp___0 ; [L970] CALL, EXPR getWaterLevel() [L402] int retValue_acc ; [L405] retValue_acc = waterLevel [L406] return (retValue_acc); [L970] RET, EXPR getWaterLevel() [L970] tmp = getWaterLevel() [L972] COND TRUE tmp != 2 [L974] CALL, EXPR isPumpRunning() [L179] int retValue_acc ; [L182] retValue_acc = pumpRunning [L183] return (retValue_acc); [L974] RET, EXPR isPumpRunning() [L974] tmp___0 = isPumpRunning() [L976] COND FALSE !(\read(tmp___0)) [L87] RET __utac_acc__Specification5_spec__3() [L318] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:58,195 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)