./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product46.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 b28893eeb4e8958df7bf6ff738f75538c209345459f7fc3e6dda93763604868d --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 15:27:20,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 15:27:20,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 15:27:20,482 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 15:27:20,483 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 15:27:20,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 15:27:20,485 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 15:27:20,487 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 15:27:20,489 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 15:27:20,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 15:27:20,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 15:27:20,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 15:27:20,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 15:27:20,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 15:27:20,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 15:27:20,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 15:27:20,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 15:27:20,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 15:27:20,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 15:27:20,508 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 15:27:20,510 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 15:27:20,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 15:27:20,511 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 15:27:20,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 15:27:20,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 15:27:20,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 15:27:20,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 15:27:20,518 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 15:27:20,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 15:27:20,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 15:27:20,521 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 15:27:20,521 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 15:27:20,522 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 15:27:20,523 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 15:27:20,523 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 15:27:20,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 15:27:20,524 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 15:27:20,525 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 15:27:20,525 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 15:27:20,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 15:27:20,526 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 15:27:20,527 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 15:27:20,529 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-23 15:27:20,560 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 15:27:20,561 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 15:27:20,561 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 15:27:20,561 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 15:27:20,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 15:27:20,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 15:27:20,563 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 15:27:20,563 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-23 15:27:20,563 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-23 15:27:20,564 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-23 15:27:20,564 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-23 15:27:20,564 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-23 15:27:20,565 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-23 15:27:20,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 15:27:20,565 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-23 15:27:20,565 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 15:27:20,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 15:27:20,565 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-23 15:27:20,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 15:27:20,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-23 15:27:20,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-23 15:27:20,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-23 15:27:20,566 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-23 15:27:20,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 15:27:20,567 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-23 15:27:20,567 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 15:27:20,567 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-23 15:27:20,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 15:27:20,567 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 15:27:20,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 15:27:20,568 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 15:27:20,568 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-23 15:27:20,569 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b28893eeb4e8958df7bf6ff738f75538c209345459f7fc3e6dda93763604868d [2022-07-23 15:27:20,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 15:27:20,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 15:27:20,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 15:27:20,808 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 15:27:20,808 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 15:27:20,809 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c [2022-07-23 15:27:20,864 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0be25cbf1/39b8e9b0414c49b19a0d1e4c4d3c8463/FLAGdf7fc1e94 [2022-07-23 15:27:21,269 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 15:27:21,270 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c [2022-07-23 15:27:21,282 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0be25cbf1/39b8e9b0414c49b19a0d1e4c4d3c8463/FLAGdf7fc1e94 [2022-07-23 15:27:21,644 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0be25cbf1/39b8e9b0414c49b19a0d1e4c4d3c8463 [2022-07-23 15:27:21,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 15:27:21,647 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 15:27:21,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 15:27:21,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 15:27:21,651 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 15:27:21,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:27:21" (1/1) ... [2022-07-23 15:27:21,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58b200fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:21, skipping insertion in model container [2022-07-23 15:27:21,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:27:21" (1/1) ... [2022-07-23 15:27:21,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 15:27:21,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 15:27:21,945 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c[13010,13023] [2022-07-23 15:27:21,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 15:27:21,974 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 15:27:22,038 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c[13010,13023] [2022-07-23 15:27:22,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 15:27:22,073 INFO L208 MainTranslator]: Completed translation [2022-07-23 15:27:22,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:22 WrapperNode [2022-07-23 15:27:22,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 15:27:22,074 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 15:27:22,075 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 15:27:22,075 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 15:27:22,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:22" (1/1) ... [2022-07-23 15:27:22,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:22" (1/1) ... [2022-07-23 15:27:22,148 INFO L137 Inliner]: procedures = 55, calls = 156, calls flagged for inlining = 53, calls inlined = 96, statements flattened = 710 [2022-07-23 15:27:22,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 15:27:22,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 15:27:22,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 15:27:22,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 15:27:22,160 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:22" (1/1) ... [2022-07-23 15:27:22,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:22" (1/1) ... [2022-07-23 15:27:22,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:22" (1/1) ... [2022-07-23 15:27:22,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:22" (1/1) ... [2022-07-23 15:27:22,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:22" (1/1) ... [2022-07-23 15:27:22,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:22" (1/1) ... [2022-07-23 15:27:22,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:22" (1/1) ... [2022-07-23 15:27:22,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 15:27:22,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 15:27:22,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 15:27:22,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 15:27:22,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:22" (1/1) ... [2022-07-23 15:27:22,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 15:27:22,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 15:27:22,224 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) [2022-07-23 15:27:22,226 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 [2022-07-23 15:27:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 15:27:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 15:27:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 15:27:22,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 15:27:22,315 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 15:27:22,317 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 15:27:22,663 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 15:27:22,675 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 15:27:22,675 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-23 15:27:22,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:27:22 BoogieIcfgContainer [2022-07-23 15:27:22,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 15:27:22,678 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-23 15:27:22,678 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-23 15:27:22,681 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-23 15:27:22,682 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:27:22,687 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.07 03:27:21" (1/3) ... [2022-07-23 15:27:22,691 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@ae555b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 03:27:22, skipping insertion in model container [2022-07-23 15:27:22,692 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:27:22,692 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:27:22" (2/3) ... [2022-07-23 15:27:22,692 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@ae555b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 03:27:22, skipping insertion in model container [2022-07-23 15:27:22,692 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:27:22,692 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:27:22" (3/3) ... [2022-07-23 15:27:22,693 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product46.cil.c [2022-07-23 15:27:22,757 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-23 15:27:22,759 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-23 15:27:22,759 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-23 15:27:22,759 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-23 15:27:22,760 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-23 15:27:22,760 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-23 15:27:22,767 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-23 15:27:22,767 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-23 15:27:22,779 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 181 states, 180 states have (on average 1.3555555555555556) internal successors, (244), 180 states have internal predecessors, (244), 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) [2022-07-23 15:27:22,802 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 117 [2022-07-23 15:27:22,802 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:27:22,802 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:27:22,807 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:27:22,807 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:27:22,807 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-23 15:27:22,808 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 181 states, 180 states have (on average 1.3555555555555556) internal successors, (244), 180 states have internal predecessors, (244), 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) [2022-07-23 15:27:22,818 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 117 [2022-07-23 15:27:22,819 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:27:22,819 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:27:22,820 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:27:22,820 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:27:22,823 INFO L752 eck$LassoCheckResult]: Stem: 162#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 50#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 43#L951true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 8#L944true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 132#L959true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 71#L140true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 148#L113true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 144#L872-2true [2022-07-23 15:27:22,824 INFO L754 eck$LassoCheckResult]: Loop: 144#L872-2true assume !false; 51#L873true assume test_~splverifierCounter~0#1 < 4; 104#L874true test_~tmp~9#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 49#L882true assume !(0 != test_~tmp~9#1); 163#L882-2true test_~tmp___0~2#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 159#L892true assume !(0 != test_~tmp___0~2#1); 142#L892-2true test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 128#L902true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 169#L764true assume { :end_inline_startSystem } true; 72#L910-2true assume { :begin_inline_timeShift } true; 138#L572true assume !(0 != ~pumpRunning~0); 27#L572-2true assume !(0 != ~systemActive~0); 12#L579-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret5#1, __utac_acc__Specification4_spec__1_#t~ret6#1, __utac_acc__Specification4_spec__1_~tmp~1#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~1#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; 94#L843true __utac_acc__Specification4_spec__1_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~1#1 := __utac_acc__Specification4_spec__1_#t~ret5#1;havoc __utac_acc__Specification4_spec__1_#t~ret5#1; 13#L165true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1#1); 22#L165-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 17#L589true assume { :end_inline_timeShift } true; 144#L872-2true [2022-07-23 15:27:22,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:27:22,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-07-23 15:27:22,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:27:22,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018843474] [2022-07-23 15:27:22,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:27:22,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:27:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:22,940 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:27:22,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:23,009 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:27:23,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:27:23,012 INFO L85 PathProgramCache]: Analyzing trace with hash -633144383, now seen corresponding path program 1 times [2022-07-23 15:27:23,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:27:23,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239735116] [2022-07-23 15:27:23,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:27:23,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:27:23,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:27:23,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:27:23,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:27:23,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239735116] [2022-07-23 15:27:23,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239735116] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:27:23,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:27:23,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 15:27:23,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150475253] [2022-07-23 15:27:23,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:27:23,116 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-23 15:27:23,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:27:23,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 15:27:23,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 15:27:23,152 INFO L87 Difference]: Start difference. First operand has 181 states, 180 states have (on average 1.3555555555555556) internal successors, (244), 180 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-07-23 15:27:23,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:27:23,212 INFO L93 Difference]: Finished difference Result 178 states and 231 transitions. [2022-07-23 15:27:23,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 15:27:23,218 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 178 states and 231 transitions. [2022-07-23 15:27:23,222 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 113 [2022-07-23 15:27:23,230 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 178 states to 168 states and 220 transitions. [2022-07-23 15:27:23,232 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 168 [2022-07-23 15:27:23,234 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 168 [2022-07-23 15:27:23,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 168 states and 220 transitions. [2022-07-23 15:27:23,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:27:23,236 INFO L369 hiAutomatonCegarLoop]: Abstraction has 168 states and 220 transitions. [2022-07-23 15:27:23,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states and 220 transitions. [2022-07-23 15:27:23,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2022-07-23 15:27:23,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 168 states have (on average 1.3095238095238095) internal successors, (220), 167 states have internal predecessors, (220), 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) [2022-07-23 15:27:23,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 220 transitions. [2022-07-23 15:27:23,270 INFO L392 hiAutomatonCegarLoop]: Abstraction has 168 states and 220 transitions. [2022-07-23 15:27:23,271 INFO L374 stractBuchiCegarLoop]: Abstraction has 168 states and 220 transitions. [2022-07-23 15:27:23,271 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-23 15:27:23,271 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 168 states and 220 transitions. [2022-07-23 15:27:23,274 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 113 [2022-07-23 15:27:23,274 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:27:23,274 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:27:23,276 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:27:23,276 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:27:23,277 INFO L752 eck$LassoCheckResult]: Stem: 534#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 451#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 444#L951 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 378#L944 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 379#L959 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 481#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 482#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 396#L872-2 [2022-07-23 15:27:23,277 INFO L754 eck$LassoCheckResult]: Loop: 396#L872-2 assume !false; 452#L873 assume test_~splverifierCounter~0#1 < 4; 453#L874 test_~tmp~9#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 449#L882 assume !(0 != test_~tmp~9#1); 450#L882-2 test_~tmp___0~2#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 533#L892 assume !(0 != test_~tmp___0~2#1); 412#L892-2 test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 519#L902 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 407#L910 assume 0 != test_~tmp___1~0#1; 408#L910-2 assume { :begin_inline_timeShift } true; 483#L572 assume !(0 != ~pumpRunning~0); 413#L572-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret31#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 414#L630 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret30#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1; 496#L604-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 497#L596-3 assume { :end_inline_processEnvironment__wrappee__base } true; 472#L604-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 406#L630-1 assume { :end_inline_processEnvironment } true; 385#L579-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret5#1, __utac_acc__Specification4_spec__1_#t~ret6#1, __utac_acc__Specification4_spec__1_~tmp~1#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~1#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; 386#L843 __utac_acc__Specification4_spec__1_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~1#1 := __utac_acc__Specification4_spec__1_#t~ret5#1;havoc __utac_acc__Specification4_spec__1_#t~ret5#1; 387#L165 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1#1); 388#L165-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 395#L589 assume { :end_inline_timeShift } true; 396#L872-2 [2022-07-23 15:27:23,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:27:23,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-07-23 15:27:23,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:27:23,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221328330] [2022-07-23 15:27:23,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:27:23,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:27:23,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:23,328 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:27:23,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:23,356 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:27:23,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:27:23,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1976616141, now seen corresponding path program 1 times [2022-07-23 15:27:23,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:27:23,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295415830] [2022-07-23 15:27:23,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:27:23,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:27:23,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:27:23,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:27:23,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:27:23,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295415830] [2022-07-23 15:27:23,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295415830] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:27:23,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:27:23,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 15:27:23,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717303838] [2022-07-23 15:27:23,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:27:23,389 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-23 15:27:23,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:27:23,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 15:27:23,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 15:27:23,391 INFO L87 Difference]: Start difference. First operand 168 states and 220 transitions. cyclomatic complexity: 54 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:27:23,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:27:23,469 INFO L93 Difference]: Finished difference Result 230 states and 289 transitions. [2022-07-23 15:27:23,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 15:27:23,470 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 230 states and 289 transitions. [2022-07-23 15:27:23,472 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 160 [2022-07-23 15:27:23,474 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 230 states to 230 states and 289 transitions. [2022-07-23 15:27:23,474 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 230 [2022-07-23 15:27:23,474 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 230 [2022-07-23 15:27:23,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 230 states and 289 transitions. [2022-07-23 15:27:23,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:27:23,475 INFO L369 hiAutomatonCegarLoop]: Abstraction has 230 states and 289 transitions. [2022-07-23 15:27:23,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states and 289 transitions. [2022-07-23 15:27:23,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2022-07-23 15:27:23,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 230 states have (on average 1.2565217391304349) internal successors, (289), 229 states have internal predecessors, (289), 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) [2022-07-23 15:27:23,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 289 transitions. [2022-07-23 15:27:23,484 INFO L392 hiAutomatonCegarLoop]: Abstraction has 230 states and 289 transitions. [2022-07-23 15:27:23,484 INFO L374 stractBuchiCegarLoop]: Abstraction has 230 states and 289 transitions. [2022-07-23 15:27:23,484 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-23 15:27:23,484 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 230 states and 289 transitions. [2022-07-23 15:27:23,485 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 160 [2022-07-23 15:27:23,486 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:27:23,486 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:27:23,486 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:27:23,486 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:27:23,486 INFO L752 eck$LassoCheckResult]: Stem: 951#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 855#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 846#L951 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 782#L944 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 783#L959 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 886#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 887#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 800#L872-2 [2022-07-23 15:27:23,487 INFO L754 eck$LassoCheckResult]: Loop: 800#L872-2 assume !false; 856#L873 assume test_~splverifierCounter~0#1 < 4; 857#L874 test_~tmp~9#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 853#L882 assume !(0 != test_~tmp~9#1); 854#L882-2 test_~tmp___0~2#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 950#L892 assume !(0 != test_~tmp___0~2#1); 816#L892-2 test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 930#L902 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 931#L764 assume { :end_inline_startSystem } true; 810#L910-2 assume { :begin_inline_timeShift } true; 888#L572 assume !(0 != ~pumpRunning~0); 817#L572-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret31#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 818#L630 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret30#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1; 905#L604-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret42#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1; 883#L851-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; 822#L856-1 isHighWaterLevel_#t~ret42#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret42#1;havoc isHighWaterLevel_#t~ret42#1; 823#L749-3 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0; 917#L749-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 908#L755-1 processEnvironment__wrappee__methaneQuery_#t~ret30#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~5#1 := processEnvironment__wrappee__methaneQuery_#t~ret30#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret30#1; 840#L608-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 841#L596-2 assume { :end_inline_processEnvironment__wrappee__base } true; 948#L604-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 903#L630-1 assume { :end_inline_processEnvironment } true; 1000#L579-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret5#1, __utac_acc__Specification4_spec__1_#t~ret6#1, __utac_acc__Specification4_spec__1_~tmp~1#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~1#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; 998#L843 __utac_acc__Specification4_spec__1_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~1#1 := __utac_acc__Specification4_spec__1_#t~ret5#1;havoc __utac_acc__Specification4_spec__1_#t~ret5#1; 995#L165 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1#1); 808#L165-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 799#L589 assume { :end_inline_timeShift } true; 800#L872-2 [2022-07-23 15:27:23,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:27:23,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-07-23 15:27:23,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:27:23,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002044096] [2022-07-23 15:27:23,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:27:23,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:27:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:23,500 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:27:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:23,514 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:27:23,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:27:23,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1738855060, now seen corresponding path program 1 times [2022-07-23 15:27:23,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:27:23,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345622468] [2022-07-23 15:27:23,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:27:23,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:27:23,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:23,545 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:27:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:23,554 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:27:23,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:27:23,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1305130288, now seen corresponding path program 1 times [2022-07-23 15:27:23,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:27:23,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268227387] [2022-07-23 15:27:23,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:27:23,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:27:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:23,571 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:27:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:27:23,590 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:27:26,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.07 03:27:26 BoogieIcfgContainer [2022-07-23 15:27:26,401 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-23 15:27:26,401 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 15:27:26,401 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 15:27:26,402 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 15:27:26,402 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:27:22" (3/4) ... [2022-07-23 15:27:26,404 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-23 15:27:26,449 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-23 15:27:26,449 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 15:27:26,450 INFO L158 Benchmark]: Toolchain (without parser) took 4802.95ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 96.9MB in the beginning and 79.0MB in the end (delta: 17.9MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. [2022-07-23 15:27:26,450 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory was 39.1MB in the beginning and 39.1MB in the end (delta: 43.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 15:27:26,451 INFO L158 Benchmark]: CACSL2BoogieTranslator took 425.64ms. Allocated memory is still 127.9MB. Free memory was 96.6MB in the beginning and 94.5MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-23 15:27:26,451 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.74ms. Allocated memory is still 127.9MB. Free memory was 94.5MB in the beginning and 90.7MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-23 15:27:26,452 INFO L158 Benchmark]: Boogie Preprocessor took 41.68ms. Allocated memory is still 127.9MB. Free memory was 90.7MB in the beginning and 88.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 15:27:26,452 INFO L158 Benchmark]: RCFGBuilder took 483.37ms. Allocated memory is still 127.9MB. Free memory was 88.3MB in the beginning and 65.2MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-07-23 15:27:26,453 INFO L158 Benchmark]: BuchiAutomizer took 3722.43ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 64.8MB in the beginning and 82.1MB in the end (delta: -17.2MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. [2022-07-23 15:27:26,454 INFO L158 Benchmark]: Witness Printer took 47.99ms. Allocated memory is still 155.2MB. Free memory was 82.1MB in the beginning and 79.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 15:27:26,456 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory was 39.1MB in the beginning and 39.1MB in the end (delta: 43.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 425.64ms. Allocated memory is still 127.9MB. Free memory was 96.6MB in the beginning and 94.5MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.74ms. Allocated memory is still 127.9MB. Free memory was 94.5MB in the beginning and 90.7MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.68ms. Allocated memory is still 127.9MB. Free memory was 90.7MB in the beginning and 88.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 483.37ms. Allocated memory is still 127.9MB. Free memory was 88.3MB in the beginning and 65.2MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 3722.43ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 64.8MB in the beginning and 82.1MB in the end (delta: -17.2MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. * Witness Printer took 47.99ms. Allocated memory is still 155.2MB. Free memory was 82.1MB in the beginning and 79.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 230 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 388 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 388 mSDsluCounter, 526 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 93 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 433 mSDtfsCounter, 33 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 872]: 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@4cdfa0da=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1aa940d6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c19a4a9=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, tmp___0=0, NULL=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@235bbc67=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f051fad=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ffb8f0d=0, retValue_acc=1, methaneLevelCritical=0, tmp=0, retValue_acc=1, retValue_acc=0, tmp=1, \result=1, retValue_acc=1, \result=1, tmp=1, tmp___2=29, cleanupTimeShifts=4, tmp=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68474bc6=0, head=0, \result=1, tmp___1=0, NULL=0, retValue_acc=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@181e9ff3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@80b4481=0, \result=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32030dd5=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 872]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L352] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L565] int pumpRunning = 0; [L566] int systemActive = 1; [L768] int waterLevel = 1; [L769] int methaneLevelCritical = 0; [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L955] int retValue_acc ; [L958] retValue_acc = 1 [L959] return (retValue_acc); [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L863] int splverifierCounter ; [L864] int tmp ; [L865] int tmp___0 ; [L866] int tmp___1 ; [L867] int tmp___2 ; [L870] splverifierCounter = 0 Loop: [L872] COND TRUE 1 [L874] COND TRUE splverifierCounter < 4 [L880] tmp = __VERIFIER_nondet_int() [L882] COND FALSE !(\read(tmp)) [L890] tmp___0 = __VERIFIER_nondet_int() [L892] COND FALSE !(\read(tmp___0)) [L900] tmp___2 = __VERIFIER_nondet_int() [L902] COND TRUE \read(tmp___2) [L904] CALL startSystem() [L763] systemActive = 1 [L904] RET startSystem() [L917] CALL timeShift() [L572] COND FALSE !(\read(pumpRunning)) [L579] COND TRUE \read(systemActive) [L581] CALL processEnvironment() [L627] int tmp ; [L630] COND FALSE !(\read(pumpRunning)) [L645] CALL processEnvironment__wrappee__methaneQuery() [L601] int tmp ; [L604] COND TRUE ! pumpRunning [L606] CALL, EXPR isHighWaterLevel() [L741] int retValue_acc ; [L742] int tmp ; [L743] int tmp___0 ; [L747] CALL, EXPR isHighWaterSensorDry() [L848] int retValue_acc ; [L851] COND TRUE waterLevel < 2 [L852] retValue_acc = 1 [L853] return (retValue_acc); [L747] RET, EXPR isHighWaterSensorDry() [L747] tmp = isHighWaterSensorDry() [L749] COND TRUE \read(tmp) [L750] tmp___0 = 0 [L754] retValue_acc = tmp___0 [L755] return (retValue_acc); [L606] RET, EXPR isHighWaterLevel() [L606] tmp = isHighWaterLevel() [L608] COND FALSE !(\read(tmp)) [L614] FCALL processEnvironment__wrappee__base() [L645] RET processEnvironment__wrappee__methaneQuery() [L581] RET processEnvironment() [L587] CALL __utac_acc__Specification4_spec__1() [L158] int tmp ; [L159] int tmp___0 ; [L163] CALL, EXPR getWaterLevel() [L839] int retValue_acc ; [L842] retValue_acc = waterLevel [L843] return (retValue_acc); [L163] RET, EXPR getWaterLevel() [L163] tmp = getWaterLevel() [L165] COND FALSE !(tmp == 0) [L587] RET __utac_acc__Specification4_spec__1() [L917] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-23 15:27:26,511 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)