./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product13.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_spec3_product13.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 4e8d46dd9ecc40481581770f17d7ff7eeb44cf0ae7cc4edb04be6d125fad45fc --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:16:45,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:16:45,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:16:45,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:16:45,525 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:16:45,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:16:45,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:16:45,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:16:45,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:16:45,541 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:16:45,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:16:45,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:16:45,543 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:16:45,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:16:45,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:16:45,550 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:16:45,551 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:16:45,552 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:16:45,554 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:16:45,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:16:45,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:16:45,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:16:45,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:16:45,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:16:45,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:16:45,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:16:45,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:16:45,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:16:45,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:16:45,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:16:45,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:16:45,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:16:45,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:16:45,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:16:45,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:16:45,581 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:16:45,582 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:16:45,582 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:16:45,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:16:45,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:16:45,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:16:45,586 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:16:45,608 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:16:45,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:16:45,608 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:16:45,609 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:16:45,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:16:45,610 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:16:45,610 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:16:45,610 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:16:45,610 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:16:45,610 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:16:45,610 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:16:45,611 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:16:45,611 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:16:45,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:16:45,613 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:16:45,613 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:16:45,613 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:16:45,613 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:16:45,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:16:45,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:16:45,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:16:45,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:16:45,614 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:16:45,615 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:16:45,615 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:16:45,615 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:16:45,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:16:45,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:16:45,616 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:16:45,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:16:45,617 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:16:45,618 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:16:45,618 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e8d46dd9ecc40481581770f17d7ff7eeb44cf0ae7cc4edb04be6d125fad45fc [2022-02-21 04:16:45,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:16:45,867 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:16:45,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:16:45,871 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:16:45,872 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:16:45,873 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c [2022-02-21 04:16:45,927 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ada6c57b3/462bebe2bcfe4185bf9832c65c30ff57/FLAG8260fbda4 [2022-02-21 04:16:46,393 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:16:46,393 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c [2022-02-21 04:16:46,406 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ada6c57b3/462bebe2bcfe4185bf9832c65c30ff57/FLAG8260fbda4 [2022-02-21 04:16:46,905 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ada6c57b3/462bebe2bcfe4185bf9832c65c30ff57 [2022-02-21 04:16:46,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:16:46,911 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:16:46,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:46,916 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:16:46,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:16:46,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:46" (1/1) ... [2022-02-21 04:16:46,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ee9c1ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:46, skipping insertion in model container [2022-02-21 04:16:46,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:46" (1/1) ... [2022-02-21 04:16:46,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:16:46,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:16:47,133 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_spec3_product13.cil.c[3343,3356] [2022-02-21 04:16:47,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:47,246 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:16:47,274 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_spec3_product13.cil.c[3343,3356] [2022-02-21 04:16:47,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:47,365 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:16:47,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:47 WrapperNode [2022-02-21 04:16:47,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:47,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:47,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:16:47,368 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:16:47,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:47" (1/1) ... [2022-02-21 04:16:47,394 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:47" (1/1) ... [2022-02-21 04:16:47,439 INFO L137 Inliner]: procedures = 51, calls = 151, calls flagged for inlining = 48, calls inlined = 50, statements flattened = 392 [2022-02-21 04:16:47,440 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:47,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:16:47,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:16:47,441 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:16:47,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:47" (1/1) ... [2022-02-21 04:16:47,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:47" (1/1) ... [2022-02-21 04:16:47,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:47" (1/1) ... [2022-02-21 04:16:47,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:47" (1/1) ... [2022-02-21 04:16:47,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:47" (1/1) ... [2022-02-21 04:16:47,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:47" (1/1) ... [2022-02-21 04:16:47,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:47" (1/1) ... [2022-02-21 04:16:47,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:16:47,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:16:47,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:16:47,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:16:47,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:47" (1/1) ... [2022-02-21 04:16:47,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:16:47,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:16:47,520 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 04:16:47,522 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 04:16:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:16:47,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:16:47,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:16:47,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:16:47,620 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:16:47,622 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:16:47,968 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:16:47,975 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:16:47,975 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:16:47,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:47 BoogieIcfgContainer [2022-02-21 04:16:47,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:16:47,983 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:16:47,984 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:16:47,990 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:16:47,991 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:47,991 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:16:46" (1/3) ... [2022-02-21 04:16:47,992 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f1eccb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:47, skipping insertion in model container [2022-02-21 04:16:47,992 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:47,992 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:47" (2/3) ... [2022-02-21 04:16:47,993 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f1eccb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:47, skipping insertion in model container [2022-02-21 04:16:47,993 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:47,993 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:47" (3/3) ... [2022-02-21 04:16:47,995 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product13.cil.c [2022-02-21 04:16:48,049 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:16:48,050 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:16:48,050 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:16:48,050 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:16:48,050 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:16:48,050 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:16:48,051 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:16:48,051 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:16:48,076 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 102 states, 101 states have (on average 1.3663366336633664) internal successors, (138), 101 states have internal predecessors, (138), 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 04:16:48,130 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 64 [2022-02-21 04:16:48,131 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:48,131 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:48,137 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:48,137 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:48,137 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:16:48,140 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 102 states, 101 states have (on average 1.3663366336633664) internal successors, (138), 101 states have internal predecessors, (138), 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 04:16:48,164 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 64 [2022-02-21 04:16:48,164 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:48,164 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:48,165 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:48,166 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:48,176 INFO L791 eck$LassoCheckResult]: Stem: 94#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 35#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret10#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 20#L161true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 72#L154true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~3#1;havoc valid_product_~retValue_acc~3#1;valid_product_~retValue_acc~3#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~3#1; 47#L169true main_#t~ret10#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret10#1;havoc main_#t~ret10#1; 24#L268true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 12#L244true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 44#L480-2true [2022-02-21 04:16:48,184 INFO L793 eck$LassoCheckResult]: Loop: 44#L480-2true assume !false; 26#L481true assume test_~splverifierCounter~0#1 < 4; 48#L482true test_~tmp~4#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 23#L490true assume !(0 != test_~tmp~4#1); 18#L490-2true test_~tmp___0~1#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 92#L500true assume !(0 != test_~tmp___0~1#1); 95#L500-2true test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 66#L510true assume 0 != test_~tmp___2~0#1; 31#L516-2true assume { :begin_inline_timeShift } true; 93#L293true assume !(0 != ~pumpRunning~0); 4#L293-2true assume !(0 != ~systemActive~0); 43#L300-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_#t~ret24#1, __utac_acc__Specification3_spec__1_~tmp~3#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 42#L99-1true __utac_acc__Specification3_spec__1_#t~ret22#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3#1 := __utac_acc__Specification3_spec__1_#t~ret22#1;havoc __utac_acc__Specification3_spec__1_#t~ret22#1; 34#L445true assume 0 != __utac_acc__Specification3_spec__1_~tmp~3#1; 55#L451-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 58#L310true assume { :end_inline_timeShift } true; 44#L480-2true [2022-02-21 04:16:48,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:48,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:16:48,198 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:48,199 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031406623] [2022-02-21 04:16:48,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:48,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:48,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:48,362 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:48,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:48,410 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:48,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:48,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1035983594, now seen corresponding path program 1 times [2022-02-21 04:16:48,413 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:48,414 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946694478] [2022-02-21 04:16:48,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:48,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:48,435 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:48,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:48,447 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:48,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:48,455 INFO L85 PathProgramCache]: Analyzing trace with hash 319435482, now seen corresponding path program 1 times [2022-02-21 04:16:48,455 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:48,456 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063510127] [2022-02-21 04:16:48,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:48,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:48,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:48,644 INFO L290 TraceCheckUtils]: 0: Hoare triple {110#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; {112#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:48,645 INFO L290 TraceCheckUtils]: 1: Hoare triple {112#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret10#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; {112#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:48,645 INFO L290 TraceCheckUtils]: 2: Hoare triple {112#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {112#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:48,646 INFO L290 TraceCheckUtils]: 3: Hoare triple {112#(= 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~3#1;havoc valid_product_~retValue_acc~3#1;valid_product_~retValue_acc~3#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~3#1; {113#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:16:48,646 INFO L290 TraceCheckUtils]: 4: Hoare triple {113#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret10#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret10#1;havoc main_#t~ret10#1; {114#(= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)} is VALID [2022-02-21 04:16:48,647 INFO L290 TraceCheckUtils]: 5: Hoare triple {114#(= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)} assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; {115#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:48,648 INFO L290 TraceCheckUtils]: 6: Hoare triple {115#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {115#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:48,648 INFO L290 TraceCheckUtils]: 7: Hoare triple {115#(not (= 0 ~systemActive~0))} assume !false; {115#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:48,649 INFO L290 TraceCheckUtils]: 8: Hoare triple {115#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {115#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:48,650 INFO L290 TraceCheckUtils]: 9: Hoare triple {115#(not (= 0 ~systemActive~0))} test_~tmp~4#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; {115#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:48,650 INFO L290 TraceCheckUtils]: 10: Hoare triple {115#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~4#1); {115#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:48,651 INFO L290 TraceCheckUtils]: 11: Hoare triple {115#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; {115#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:48,652 INFO L290 TraceCheckUtils]: 12: Hoare triple {115#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {115#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:48,653 INFO L290 TraceCheckUtils]: 13: Hoare triple {115#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; {115#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:48,653 INFO L290 TraceCheckUtils]: 14: Hoare triple {115#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {115#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:48,654 INFO L290 TraceCheckUtils]: 15: Hoare triple {115#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {115#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:48,654 INFO L290 TraceCheckUtils]: 16: Hoare triple {115#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {115#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:48,655 INFO L290 TraceCheckUtils]: 17: Hoare triple {115#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {111#false} is VALID [2022-02-21 04:16:48,655 INFO L290 TraceCheckUtils]: 18: Hoare triple {111#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_#t~ret24#1, __utac_acc__Specification3_spec__1_~tmp~3#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; {111#false} is VALID [2022-02-21 04:16:48,656 INFO L290 TraceCheckUtils]: 19: Hoare triple {111#false} __utac_acc__Specification3_spec__1_#t~ret22#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3#1 := __utac_acc__Specification3_spec__1_#t~ret22#1;havoc __utac_acc__Specification3_spec__1_#t~ret22#1; {111#false} is VALID [2022-02-21 04:16:48,656 INFO L290 TraceCheckUtils]: 20: Hoare triple {111#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~3#1; {111#false} is VALID [2022-02-21 04:16:48,657 INFO L290 TraceCheckUtils]: 21: Hoare triple {111#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {111#false} is VALID [2022-02-21 04:16:48,658 INFO L290 TraceCheckUtils]: 22: Hoare triple {111#false} assume { :end_inline_timeShift } true; {111#false} is VALID [2022-02-21 04:16:48,659 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 04:16:48,660 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:48,661 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063510127] [2022-02-21 04:16:48,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063510127] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:48,662 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:48,662 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:16:48,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219814670] [2022-02-21 04:16:48,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:48,793 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:48,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:16:48,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:16:48,830 INFO L87 Difference]: Start difference. First operand has 102 states, 101 states have (on average 1.3663366336633664) internal successors, (138), 101 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:49,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:49,187 INFO L93 Difference]: Finished difference Result 99 states and 124 transitions. [2022-02-21 04:16:49,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:16:49,188 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:49,210 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 04:16:49,214 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 99 states and 124 transitions. [2022-02-21 04:16:49,218 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 60 [2022-02-21 04:16:49,223 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 99 states to 89 states and 114 transitions. [2022-02-21 04:16:49,225 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 89 [2022-02-21 04:16:49,225 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 89 [2022-02-21 04:16:49,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 89 states and 114 transitions. [2022-02-21 04:16:49,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:49,226 INFO L681 BuchiCegarLoop]: Abstraction has 89 states and 114 transitions. [2022-02-21 04:16:49,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states and 114 transitions. [2022-02-21 04:16:49,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2022-02-21 04:16:49,250 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:49,251 INFO L82 GeneralOperation]: Start isEquivalent. First operand 89 states and 114 transitions. Second operand has 89 states, 89 states have (on average 1.2808988764044944) internal successors, (114), 88 states have internal predecessors, (114), 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 04:16:49,252 INFO L74 IsIncluded]: Start isIncluded. First operand 89 states and 114 transitions. Second operand has 89 states, 89 states have (on average 1.2808988764044944) internal successors, (114), 88 states have internal predecessors, (114), 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 04:16:49,253 INFO L87 Difference]: Start difference. First operand 89 states and 114 transitions. Second operand has 89 states, 89 states have (on average 1.2808988764044944) internal successors, (114), 88 states have internal predecessors, (114), 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 04:16:49,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:49,257 INFO L93 Difference]: Finished difference Result 89 states and 114 transitions. [2022-02-21 04:16:49,257 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 114 transitions. [2022-02-21 04:16:49,258 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:49,258 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:49,259 INFO L74 IsIncluded]: Start isIncluded. First operand has 89 states, 89 states have (on average 1.2808988764044944) internal successors, (114), 88 states have internal predecessors, (114), 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 89 states and 114 transitions. [2022-02-21 04:16:49,259 INFO L87 Difference]: Start difference. First operand has 89 states, 89 states have (on average 1.2808988764044944) internal successors, (114), 88 states have internal predecessors, (114), 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 89 states and 114 transitions. [2022-02-21 04:16:49,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:49,262 INFO L93 Difference]: Finished difference Result 89 states and 114 transitions. [2022-02-21 04:16:49,262 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 114 transitions. [2022-02-21 04:16:49,263 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:49,263 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:49,263 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:49,263 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:49,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 89 states have (on average 1.2808988764044944) internal successors, (114), 88 states have internal predecessors, (114), 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 04:16:49,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 114 transitions. [2022-02-21 04:16:49,267 INFO L704 BuchiCegarLoop]: Abstraction has 89 states and 114 transitions. [2022-02-21 04:16:49,267 INFO L587 BuchiCegarLoop]: Abstraction has 89 states and 114 transitions. [2022-02-21 04:16:49,267 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:16:49,267 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states and 114 transitions. [2022-02-21 04:16:49,268 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 60 [2022-02-21 04:16:49,268 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:49,268 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:49,269 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:49,269 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:49,269 INFO L791 eck$LassoCheckResult]: Stem: 307#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 295#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret10#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 256#L161 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 257#L154 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~3#1;havoc valid_product_~retValue_acc~3#1;valid_product_~retValue_acc~3#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~3#1; 273#L169 main_#t~ret10#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret10#1;havoc main_#t~ret10#1; 272#L268 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 241#L244 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 238#L480-2 [2022-02-21 04:16:49,270 INFO L793 eck$LassoCheckResult]: Loop: 238#L480-2 assume !false; 274#L481 assume test_~splverifierCounter~0#1 < 4; 275#L482 test_~tmp~4#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 269#L490 assume !(0 != test_~tmp~4#1); 252#L490-2 test_~tmp___0~1#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 253#L500 assume !(0 != test_~tmp___0~1#1); 303#L500-2 test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 261#L510 assume 0 != test_~tmp___2~0#1; 263#L516-2 assume { :begin_inline_timeShift } true; 287#L293 assume !(0 != ~pumpRunning~0); 219#L293-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 220#L325 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true; 244#L317-1 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 231#L325-1 assume { :end_inline_processEnvironment } true; 294#L300-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_#t~ret24#1, __utac_acc__Specification3_spec__1_~tmp~3#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 301#L99-1 __utac_acc__Specification3_spec__1_#t~ret22#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3#1 := __utac_acc__Specification3_spec__1_#t~ret22#1;havoc __utac_acc__Specification3_spec__1_#t~ret22#1; 290#L445 assume 0 != __utac_acc__Specification3_spec__1_~tmp~3#1; 227#L451-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 228#L310 assume { :end_inline_timeShift } true; 238#L480-2 [2022-02-21 04:16:49,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:49,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:16:49,271 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:49,271 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709665255] [2022-02-21 04:16:49,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:49,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:49,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:49,284 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:49,298 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:49,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:49,298 INFO L85 PathProgramCache]: Analyzing trace with hash -2086260171, now seen corresponding path program 1 times [2022-02-21 04:16:49,299 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:49,299 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288038312] [2022-02-21 04:16:49,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:49,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:49,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:49,305 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:49,310 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:49,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:49,310 INFO L85 PathProgramCache]: Analyzing trace with hash 215883249, now seen corresponding path program 1 times [2022-02-21 04:16:49,310 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:49,311 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479403439] [2022-02-21 04:16:49,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:49,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:49,371 INFO L290 TraceCheckUtils]: 0: Hoare triple {493#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; {495#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:49,371 INFO L290 TraceCheckUtils]: 1: Hoare triple {495#(= ~methaneLevelCritical~0 0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret10#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; {495#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:49,372 INFO L290 TraceCheckUtils]: 2: Hoare triple {495#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {495#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:49,372 INFO L290 TraceCheckUtils]: 3: Hoare triple {495#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~3#1;havoc valid_product_~retValue_acc~3#1;valid_product_~retValue_acc~3#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~3#1; {495#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:49,373 INFO L290 TraceCheckUtils]: 4: Hoare triple {495#(= ~methaneLevelCritical~0 0)} main_#t~ret10#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret10#1;havoc main_#t~ret10#1; {495#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:49,373 INFO L290 TraceCheckUtils]: 5: Hoare triple {495#(= ~methaneLevelCritical~0 0)} assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; {495#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:49,373 INFO L290 TraceCheckUtils]: 6: Hoare triple {495#(= ~methaneLevelCritical~0 0)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {495#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:49,374 INFO L290 TraceCheckUtils]: 7: Hoare triple {495#(= ~methaneLevelCritical~0 0)} assume !false; {495#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:49,374 INFO L290 TraceCheckUtils]: 8: Hoare triple {495#(= ~methaneLevelCritical~0 0)} assume test_~splverifierCounter~0#1 < 4; {495#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:49,375 INFO L290 TraceCheckUtils]: 9: Hoare triple {495#(= ~methaneLevelCritical~0 0)} test_~tmp~4#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; {495#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:49,375 INFO L290 TraceCheckUtils]: 10: Hoare triple {495#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp~4#1); {495#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:49,375 INFO L290 TraceCheckUtils]: 11: Hoare triple {495#(= ~methaneLevelCritical~0 0)} test_~tmp___0~1#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; {495#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:49,376 INFO L290 TraceCheckUtils]: 12: Hoare triple {495#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___0~1#1); {495#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:49,376 INFO L290 TraceCheckUtils]: 13: Hoare triple {495#(= ~methaneLevelCritical~0 0)} test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; {495#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:49,377 INFO L290 TraceCheckUtils]: 14: Hoare triple {495#(= ~methaneLevelCritical~0 0)} assume 0 != test_~tmp___2~0#1; {495#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:49,377 INFO L290 TraceCheckUtils]: 15: Hoare triple {495#(= ~methaneLevelCritical~0 0)} assume { :begin_inline_timeShift } true; {495#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:49,377 INFO L290 TraceCheckUtils]: 16: Hoare triple {495#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0); {495#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:49,378 INFO L290 TraceCheckUtils]: 17: Hoare triple {495#(= ~methaneLevelCritical~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; {495#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:49,378 INFO L290 TraceCheckUtils]: 18: Hoare triple {495#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true; {495#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:49,379 INFO L290 TraceCheckUtils]: 19: Hoare triple {495#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; {495#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:49,379 INFO L290 TraceCheckUtils]: 20: Hoare triple {495#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment } true; {495#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:49,380 INFO L290 TraceCheckUtils]: 21: Hoare triple {495#(= ~methaneLevelCritical~0 0)} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_#t~ret24#1, __utac_acc__Specification3_spec__1_~tmp~3#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; {496#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} is VALID [2022-02-21 04:16:49,380 INFO L290 TraceCheckUtils]: 22: Hoare triple {496#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} __utac_acc__Specification3_spec__1_#t~ret22#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3#1 := __utac_acc__Specification3_spec__1_#t~ret22#1;havoc __utac_acc__Specification3_spec__1_#t~ret22#1; {497#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~3#1| 0)} is VALID [2022-02-21 04:16:49,381 INFO L290 TraceCheckUtils]: 23: Hoare triple {497#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~3#1| 0)} assume 0 != __utac_acc__Specification3_spec__1_~tmp~3#1; {494#false} is VALID [2022-02-21 04:16:49,381 INFO L290 TraceCheckUtils]: 24: Hoare triple {494#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {494#false} is VALID [2022-02-21 04:16:49,381 INFO L290 TraceCheckUtils]: 25: Hoare triple {494#false} assume { :end_inline_timeShift } true; {494#false} is VALID [2022-02-21 04:16:49,381 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 04:16:49,381 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:49,382 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479403439] [2022-02-21 04:16:49,382 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479403439] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:49,382 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:49,382 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:16:49,382 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623982721] [2022-02-21 04:16:49,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:49,483 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:49,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:16:49,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:16:49,484 INFO L87 Difference]: Start difference. First operand 89 states and 114 transitions. cyclomatic complexity: 27 Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 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 04:16:50,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:50,080 INFO L93 Difference]: Finished difference Result 305 states and 394 transitions. [2022-02-21 04:16:50,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:16:50,080 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 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 04:16:50,103 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 04:16:50,104 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 305 states and 394 transitions. [2022-02-21 04:16:50,119 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 213 [2022-02-21 04:16:50,133 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 305 states to 305 states and 394 transitions. [2022-02-21 04:16:50,134 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 305 [2022-02-21 04:16:50,135 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 305 [2022-02-21 04:16:50,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 305 states and 394 transitions. [2022-02-21 04:16:50,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:50,139 INFO L681 BuchiCegarLoop]: Abstraction has 305 states and 394 transitions. [2022-02-21 04:16:50,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states and 394 transitions. [2022-02-21 04:16:50,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 171. [2022-02-21 04:16:50,158 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:50,159 INFO L82 GeneralOperation]: Start isEquivalent. First operand 305 states and 394 transitions. Second operand has 171 states, 171 states have (on average 1.2690058479532165) internal successors, (217), 170 states have internal predecessors, (217), 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 04:16:50,159 INFO L74 IsIncluded]: Start isIncluded. First operand 305 states and 394 transitions. Second operand has 171 states, 171 states have (on average 1.2690058479532165) internal successors, (217), 170 states have internal predecessors, (217), 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 04:16:50,160 INFO L87 Difference]: Start difference. First operand 305 states and 394 transitions. Second operand has 171 states, 171 states have (on average 1.2690058479532165) internal successors, (217), 170 states have internal predecessors, (217), 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 04:16:50,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:50,167 INFO L93 Difference]: Finished difference Result 305 states and 394 transitions. [2022-02-21 04:16:50,167 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 394 transitions. [2022-02-21 04:16:50,169 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:50,169 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:50,170 INFO L74 IsIncluded]: Start isIncluded. First operand has 171 states, 171 states have (on average 1.2690058479532165) internal successors, (217), 170 states have internal predecessors, (217), 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 305 states and 394 transitions. [2022-02-21 04:16:50,170 INFO L87 Difference]: Start difference. First operand has 171 states, 171 states have (on average 1.2690058479532165) internal successors, (217), 170 states have internal predecessors, (217), 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 305 states and 394 transitions. [2022-02-21 04:16:50,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:50,179 INFO L93 Difference]: Finished difference Result 305 states and 394 transitions. [2022-02-21 04:16:50,179 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 394 transitions. [2022-02-21 04:16:50,181 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:50,181 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:50,181 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:50,181 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:50,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 171 states have (on average 1.2690058479532165) internal successors, (217), 170 states have internal predecessors, (217), 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 04:16:50,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 217 transitions. [2022-02-21 04:16:50,186 INFO L704 BuchiCegarLoop]: Abstraction has 171 states and 217 transitions. [2022-02-21 04:16:50,186 INFO L587 BuchiCegarLoop]: Abstraction has 171 states and 217 transitions. [2022-02-21 04:16:50,186 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:16:50,186 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 171 states and 217 transitions. [2022-02-21 04:16:50,187 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 120 [2022-02-21 04:16:50,187 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:50,187 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:50,188 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:50,188 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:50,191 INFO L791 eck$LassoCheckResult]: Stem: 916#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 899#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret10#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 849#L161 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 850#L154 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~3#1;havoc valid_product_~retValue_acc~3#1;valid_product_~retValue_acc~3#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~3#1; 869#L169 main_#t~ret10#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret10#1;havoc main_#t~ret10#1; 868#L268 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 833#L244 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 834#L480-2 [2022-02-21 04:16:50,191 INFO L793 eck$LassoCheckResult]: Loop: 834#L480-2 assume !false; 872#L481 assume test_~splverifierCounter~0#1 < 4; 873#L482 test_~tmp~4#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 918#L490 assume !(0 != test_~tmp~4#1); 979#L490-2 test_~tmp___0~1#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 978#L500 assume !(0 != test_~tmp___0~1#1); 976#L500-2 test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 975#L510 assume 0 != test_~tmp___2~0#1; 973#L516-2 assume { :begin_inline_timeShift } true; 971#L293 assume !(0 != ~pumpRunning~0); 969#L293-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 968#L325 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true; 837#L317-1 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 823#L325-1 assume { :end_inline_processEnvironment } true; 898#L300-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_#t~ret24#1, __utac_acc__Specification3_spec__1_~tmp~3#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 910#L99-1 __utac_acc__Specification3_spec__1_#t~ret22#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3#1 := __utac_acc__Specification3_spec__1_#t~ret22#1;havoc __utac_acc__Specification3_spec__1_#t~ret22#1; 894#L445 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~3#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 895#L131 __utac_acc__Specification3_spec__1_#t~ret23#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret23#1;havoc __utac_acc__Specification3_spec__1_#t~ret23#1; 903#L451 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 963#L451-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 962#L310 assume { :end_inline_timeShift } true; 834#L480-2 [2022-02-21 04:16:50,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:50,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:16:50,192 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:50,194 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579560043] [2022-02-21 04:16:50,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:50,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:50,213 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:50,228 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:50,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:50,229 INFO L85 PathProgramCache]: Analyzing trace with hash 854953992, now seen corresponding path program 1 times [2022-02-21 04:16:50,229 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:50,229 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454255596] [2022-02-21 04:16:50,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:50,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:50,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:50,240 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:50,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:50,244 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:50,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:50,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1306623172, now seen corresponding path program 1 times [2022-02-21 04:16:50,245 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:50,245 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026896000] [2022-02-21 04:16:50,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:50,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:50,261 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:50,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:50,275 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:52,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:16:52 BoogieIcfgContainer [2022-02-21 04:16:52,978 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:16:52,978 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:16:52,978 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:16:52,979 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:16:52,979 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:47" (3/4) ... [2022-02-21 04:16:52,981 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:16:53,021 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:16:53,022 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:16:53,023 INFO L158 Benchmark]: Toolchain (without parser) took 6111.41ms. Allocated memory was 98.6MB in the beginning and 155.2MB in the end (delta: 56.6MB). Free memory was 67.5MB in the beginning and 89.6MB in the end (delta: -22.1MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2022-02-21 04:16:53,023 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 98.6MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:16:53,023 INFO L158 Benchmark]: CACSL2BoogieTranslator took 451.12ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 67.5MB in the beginning and 90.9MB in the end (delta: -23.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:16:53,024 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.36ms. Allocated memory is still 127.9MB. Free memory was 90.9MB in the beginning and 87.6MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:53,024 INFO L158 Benchmark]: Boogie Preprocessor took 41.41ms. Allocated memory is still 127.9MB. Free memory was 87.6MB in the beginning and 85.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:53,024 INFO L158 Benchmark]: RCFGBuilder took 499.05ms. Allocated memory is still 127.9MB. Free memory was 85.5MB in the beginning and 101.9MB in the end (delta: -16.4MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2022-02-21 04:16:53,025 INFO L158 Benchmark]: BuchiAutomizer took 4994.48ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 101.9MB in the beginning and 91.7MB in the end (delta: 10.2MB). Peak memory consumption was 87.0MB. Max. memory is 16.1GB. [2022-02-21 04:16:53,025 INFO L158 Benchmark]: Witness Printer took 43.50ms. Allocated memory is still 155.2MB. Free memory was 91.7MB in the beginning and 89.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:53,027 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 0.24ms. Allocated memory is still 98.6MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 451.12ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 67.5MB in the beginning and 90.9MB in the end (delta: -23.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.36ms. Allocated memory is still 127.9MB. Free memory was 90.9MB in the beginning and 87.6MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.41ms. Allocated memory is still 127.9MB. Free memory was 87.6MB in the beginning and 85.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 499.05ms. Allocated memory is still 127.9MB. Free memory was 85.5MB in the beginning and 101.9MB in the end (delta: -16.4MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 4994.48ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 101.9MB in the beginning and 91.7MB in the end (delta: 10.2MB). Peak memory consumption was 87.0MB. Max. memory is 16.1GB. * Witness Printer took 43.50ms. Allocated memory is still 155.2MB. Free memory was 91.7MB in the beginning and 89.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 171 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 134 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 171 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 857 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 857 mSDsluCounter, 741 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 469 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 272 mSDtfsCounter, 91 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 480]: 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@783750cc=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, methaneLevelCritical=0, tmp___0=1, \result=0, tmp=0, retValue_acc=0, \result=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5363a48f=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18cbf61c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67845248=0, tmp___1=0, tmp___2=29, cleanupTimeShifts=4, tmp=1, \result=0, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3baafa24=0, systemActive=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41433806=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20cc8e77=29, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@531b585c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1503abbe=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 480]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L56] int waterLevel = 1; [L57] int methaneLevelCritical = 0; [L183] int cleanupTimeShifts = 4; [L285] int pumpRunning = 0; [L286] int systemActive = 1; [L704] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L259] int retValue_acc ; [L260] int tmp ; [L264] FCALL select_helpers() [L265] FCALL select_features() [L266] CALL, EXPR valid_product() [L165] int retValue_acc ; [L168] retValue_acc = 1 [L169] return (retValue_acc); [L266] RET, EXPR valid_product() [L266] tmp = valid_product() [L268] COND TRUE \read(tmp) [L270] FCALL setup() [L271] CALL runTest() [L253] CALL test() [L471] int splverifierCounter ; [L472] int tmp ; [L473] int tmp___0 ; [L474] int tmp___1 ; [L475] int tmp___2 ; [L478] splverifierCounter = 0 Loop: [L480] COND TRUE 1 [L482] COND TRUE splverifierCounter < 4 [L488] tmp = __VERIFIER_nondet_int() [L490] COND FALSE !(\read(tmp)) [L498] tmp___0 = __VERIFIER_nondet_int() [L500] COND FALSE !(\read(tmp___0)) [L508] tmp___2 = __VERIFIER_nondet_int() [L510] COND TRUE \read(tmp___2) [L523] CALL timeShift() [L293] COND FALSE !(\read(pumpRunning)) [L300] COND TRUE \read(systemActive) [L302] CALL processEnvironment() [L322] int tmp ; [L325] COND FALSE !(\read(pumpRunning)) [L340] FCALL processEnvironment__wrappee__methaneQuery() [L302] RET processEnvironment() [L308] CALL __utac_acc__Specification3_spec__1() [L437] int tmp ; [L438] int tmp___0 ; [L439] int tmp___1 ; [L443] CALL, EXPR isMethaneLevelCritical() [L95] int retValue_acc ; [L98] retValue_acc = methaneLevelCritical [L99] return (retValue_acc); [L443] RET, EXPR isMethaneLevelCritical() [L443] tmp = isMethaneLevelCritical() [L445] COND FALSE !(\read(tmp)) [L449] CALL, EXPR getWaterLevel() [L127] int retValue_acc ; [L130] retValue_acc = waterLevel [L131] return (retValue_acc); [L449] RET, EXPR getWaterLevel() [L449] tmp___0 = getWaterLevel() [L451] COND FALSE !(tmp___0 == 2) [L308] RET __utac_acc__Specification3_spec__1() [L523] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:16:53,082 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)