./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 44dae38cb994480933527955346e93b306d1aac023f2c5b3e53f2823ec637c09 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 20:25:22,463 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 20:25:22,465 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 20:25:22,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 20:25:22,489 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 20:25:22,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 20:25:22,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 20:25:22,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 20:25:22,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 20:25:22,494 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 20:25:22,495 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 20:25:22,496 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 20:25:22,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 20:25:22,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 20:25:22,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 20:25:22,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 20:25:22,499 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 20:25:22,500 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 20:25:22,501 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 20:25:22,503 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 20:25:22,504 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 20:25:22,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 20:25:22,506 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 20:25:22,507 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 20:25:22,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 20:25:22,510 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 20:25:22,510 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 20:25:22,511 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 20:25:22,512 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 20:25:22,512 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 20:25:22,513 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 20:25:22,513 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 20:25:22,514 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 20:25:22,515 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 20:25:22,516 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 20:25:22,516 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 20:25:22,517 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 20:25:22,517 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 20:25:22,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 20:25:22,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 20:25:22,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 20:25:22,520 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-22 20:25:22,536 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 20:25:22,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 20:25:22,537 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 20:25:22,537 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 20:25:22,538 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 20:25:22,539 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 20:25:22,539 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 20:25:22,539 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-22 20:25:22,539 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-22 20:25:22,540 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-22 20:25:22,540 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-22 20:25:22,540 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-22 20:25:22,540 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-22 20:25:22,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 20:25:22,541 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 20:25:22,541 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-22 20:25:22,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 20:25:22,541 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 20:25:22,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 20:25:22,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-22 20:25:22,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-22 20:25:22,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-22 20:25:22,542 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 20:25:22,542 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 20:25:22,543 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-22 20:25:22,543 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 20:25:22,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-22 20:25:22,543 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 20:25:22,543 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 20:25:22,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 20:25:22,544 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 20:25:22,544 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 20:25:22,545 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-22 20:25:22,545 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44dae38cb994480933527955346e93b306d1aac023f2c5b3e53f2823ec637c09 [2021-12-22 20:25:22,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 20:25:22,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 20:25:22,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 20:25:22,781 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 20:25:22,784 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 20:25:22,785 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2021-12-22 20:25:22,845 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad2d3c5f3/698d439492d04ccd86d0591099c68ae7/FLAG2f0362a88 [2021-12-22 20:25:23,256 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 20:25:23,257 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2021-12-22 20:25:23,274 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad2d3c5f3/698d439492d04ccd86d0591099c68ae7/FLAG2f0362a88 [2021-12-22 20:25:23,286 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad2d3c5f3/698d439492d04ccd86d0591099c68ae7 [2021-12-22 20:25:23,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 20:25:23,289 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 20:25:23,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 20:25:23,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 20:25:23,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 20:25:23,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:25:23" (1/1) ... [2021-12-22 20:25:23,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c209dc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:23, skipping insertion in model container [2021-12-22 20:25:23,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:25:23" (1/1) ... [2021-12-22 20:25:23,308 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 20:25:23,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 20:25:23,574 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_product59.cil.c[15143,15156] [2021-12-22 20:25:23,590 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:25:23,598 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 20:25:23,670 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_product59.cil.c[15143,15156] [2021-12-22 20:25:23,681 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:25:23,698 INFO L208 MainTranslator]: Completed translation [2021-12-22 20:25:23,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:23 WrapperNode [2021-12-22 20:25:23,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 20:25:23,701 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 20:25:23,701 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 20:25:23,701 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 20:25:23,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:23" (1/1) ... [2021-12-22 20:25:23,735 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:23" (1/1) ... [2021-12-22 20:25:23,790 INFO L137 Inliner]: procedures = 57, calls = 159, calls flagged for inlining = 56, calls inlined = 100, statements flattened = 765 [2021-12-22 20:25:23,796 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 20:25:23,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 20:25:23,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 20:25:23,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 20:25:23,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:23" (1/1) ... [2021-12-22 20:25:23,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:23" (1/1) ... [2021-12-22 20:25:23,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:23" (1/1) ... [2021-12-22 20:25:23,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:23" (1/1) ... [2021-12-22 20:25:23,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:23" (1/1) ... [2021-12-22 20:25:23,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:23" (1/1) ... [2021-12-22 20:25:23,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:23" (1/1) ... [2021-12-22 20:25:23,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 20:25:23,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 20:25:23,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 20:25:23,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 20:25:23,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:23" (1/1) ... [2021-12-22 20:25:23,854 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:25:23,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:25:23,880 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) [2021-12-22 20:25:23,887 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 [2021-12-22 20:25:23,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 20:25:23,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 20:25:23,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 20:25:23,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 20:25:23,970 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 20:25:23,971 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 20:25:24,358 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 20:25:24,365 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 20:25:24,368 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-22 20:25:24,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:25:24 BoogieIcfgContainer [2021-12-22 20:25:24,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 20:25:24,372 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-22 20:25:24,373 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-22 20:25:24,375 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-22 20:25:24,376 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:25:24,376 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.12 08:25:23" (1/3) ... [2021-12-22 20:25:24,378 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@89c310c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:25:24, skipping insertion in model container [2021-12-22 20:25:24,378 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:25:24,378 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:25:23" (2/3) ... [2021-12-22 20:25:24,378 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@89c310c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:25:24, skipping insertion in model container [2021-12-22 20:25:24,378 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:25:24,379 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:25:24" (3/3) ... [2021-12-22 20:25:24,380 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product59.cil.c [2021-12-22 20:25:24,417 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-22 20:25:24,417 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-22 20:25:24,417 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-22 20:25:24,418 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-22 20:25:24,418 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-22 20:25:24,418 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-22 20:25:24,418 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-22 20:25:24,418 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-22 20:25:24,438 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 196 states, 195 states have (on average 1.3641025641025641) internal successors, (266), 195 states have internal predecessors, (266), 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) [2021-12-22 20:25:24,462 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 128 [2021-12-22 20:25:24,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:25:24,463 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:25:24,471 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:25:24,471 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:25:24,471 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-22 20:25:24,472 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 196 states, 195 states have (on average 1.3641025641025641) internal successors, (266), 195 states have internal predecessors, (266), 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) [2021-12-22 20:25:24,480 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 128 [2021-12-22 20:25:24,481 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:25:24,481 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:25:24,482 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:25:24,482 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:25:24,504 INFO L791 eck$LassoCheckResult]: Stem: 189#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 137#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 187#L651true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 181#L644true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 132#L659true main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 116#L615true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 84#L588true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 185#L720-2true [2021-12-22 20:25:24,504 INFO L793 eck$LassoCheckResult]: Loop: 185#L720-2true assume !false; 77#L721true assume test_~splverifierCounter~0#1 < 4; 61#L722true test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 56#L730true assume !(0 != test_~tmp~5#1); 145#L730-2true test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 142#L740true assume !(0 != test_~tmp___0~1#1); 30#L740-2true test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 179#L750true assume 0 != test_~tmp___2~0#1; 152#L756-2true assume { :begin_inline_timeShift } true; 13#L786true assume !(0 != ~pumpRunning~0); 140#L786-2true assume !(0 != ~systemActive~0); 26#L793-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#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~4#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~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 94#L467-2true __utac_acc__Specification3_spec__1_#t~ret34#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; 63#L675true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 98#L681-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 18#L803true assume { :end_inline_timeShift } true; 185#L720-2true [2021-12-22 20:25:24,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:25:24,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-22 20:25:24,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:25:24,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752394792] [2021-12-22 20:25:24,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:25:24,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:25:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:24,609 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:25:24,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:24,680 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:25:24,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:25:24,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1086879670, now seen corresponding path program 1 times [2021-12-22 20:25:24,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:25:24,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54491217] [2021-12-22 20:25:24,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:25:24,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:25:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:24,701 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:25:24,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:24,709 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:25:24,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:25:24,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1852668550, now seen corresponding path program 1 times [2021-12-22 20:25:24,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:25:24,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320712311] [2021-12-22 20:25:24,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:25:24,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:25:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:25:24,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 20:25:24,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 20:25:24,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320712311] [2021-12-22 20:25:24,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320712311] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 20:25:24,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 20:25:24,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 20:25:24,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056701181] [2021-12-22 20:25:24,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 20:25:24,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 20:25:25,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 20:25:25,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-22 20:25:25,015 INFO L87 Difference]: Start difference. First operand has 196 states, 195 states have (on average 1.3641025641025641) internal successors, (266), 195 states have internal predecessors, (266), 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) [2021-12-22 20:25:25,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 20:25:25,149 INFO L93 Difference]: Finished difference Result 449 states and 590 transitions. [2021-12-22 20:25:25,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 20:25:25,160 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 449 states and 590 transitions. [2021-12-22 20:25:25,171 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 291 [2021-12-22 20:25:25,188 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 449 states to 419 states and 560 transitions. [2021-12-22 20:25:25,189 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 419 [2021-12-22 20:25:25,192 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 419 [2021-12-22 20:25:25,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 419 states and 560 transitions. [2021-12-22 20:25:25,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 20:25:25,203 INFO L681 BuchiCegarLoop]: Abstraction has 419 states and 560 transitions. [2021-12-22 20:25:25,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states and 560 transitions. [2021-12-22 20:25:25,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 241. [2021-12-22 20:25:25,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 241 states have (on average 1.3360995850622406) internal successors, (322), 240 states have internal predecessors, (322), 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) [2021-12-22 20:25:25,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 322 transitions. [2021-12-22 20:25:25,241 INFO L704 BuchiCegarLoop]: Abstraction has 241 states and 322 transitions. [2021-12-22 20:25:25,241 INFO L587 BuchiCegarLoop]: Abstraction has 241 states and 322 transitions. [2021-12-22 20:25:25,242 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-22 20:25:25,242 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 241 states and 322 transitions. [2021-12-22 20:25:25,248 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 168 [2021-12-22 20:25:25,248 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:25:25,249 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:25:25,249 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:25:25,249 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] [2021-12-22 20:25:25,250 INFO L791 eck$LassoCheckResult]: Stem: 846#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 772#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 773#L651 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 845#L644 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 754#L659 main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 683#L615 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 684#L588 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 723#L720-2 [2021-12-22 20:25:25,250 INFO L793 eck$LassoCheckResult]: Loop: 723#L720-2 assume !false; 831#L721 assume test_~splverifierCounter~0#1 < 4; 812#L722 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 803#L730 assume !(0 != test_~tmp~5#1); 791#L730-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 785#L740 assume !(0 != test_~tmp___0~1#1); 710#L740-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 759#L750 assume 0 != test_~tmp___2~0#1; 808#L756-2 assume { :begin_inline_timeShift } true; 704#L786 assume !(0 != ~pumpRunning~0); 705#L786-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 779#L844 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 755#L818-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 756#L810-3 assume { :end_inline_processEnvironment__wrappee__base } true; 727#L818-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 810#L844-1 assume { :end_inline_processEnvironment } true; 746#L793-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#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~4#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~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 747#L467-2 __utac_acc__Specification3_spec__1_#t~ret34#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; 819#L675 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 813#L681-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 722#L803 assume { :end_inline_timeShift } true; 723#L720-2 [2021-12-22 20:25:25,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:25:25,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-22 20:25:25,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:25:25,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151825414] [2021-12-22 20:25:25,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:25:25,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:25:25,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:25,296 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:25:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:25,326 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:25:25,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:25:25,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1122641260, now seen corresponding path program 1 times [2021-12-22 20:25:25,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:25:25,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386911631] [2021-12-22 20:25:25,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:25:25,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:25:25,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:25:25,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 20:25:25,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 20:25:25,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386911631] [2021-12-22 20:25:25,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386911631] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 20:25:25,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 20:25:25,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 20:25:25,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018916002] [2021-12-22 20:25:25,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 20:25:25,359 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-22 20:25:25,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 20:25:25,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 20:25:25,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 20:25:25,360 INFO L87 Difference]: Start difference. First operand 241 states and 322 transitions. cyclomatic complexity: 84 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:25:25,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 20:25:25,438 INFO L93 Difference]: Finished difference Result 303 states and 388 transitions. [2021-12-22 20:25:25,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 20:25:25,439 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 303 states and 388 transitions. [2021-12-22 20:25:25,442 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 215 [2021-12-22 20:25:25,448 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 303 states to 303 states and 388 transitions. [2021-12-22 20:25:25,448 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 303 [2021-12-22 20:25:25,449 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 303 [2021-12-22 20:25:25,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 303 states and 388 transitions. [2021-12-22 20:25:25,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 20:25:25,450 INFO L681 BuchiCegarLoop]: Abstraction has 303 states and 388 transitions. [2021-12-22 20:25:25,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states and 388 transitions. [2021-12-22 20:25:25,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2021-12-22 20:25:25,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 303 states have (on average 1.2805280528052805) internal successors, (388), 302 states have internal predecessors, (388), 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) [2021-12-22 20:25:25,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 388 transitions. [2021-12-22 20:25:25,461 INFO L704 BuchiCegarLoop]: Abstraction has 303 states and 388 transitions. [2021-12-22 20:25:25,461 INFO L587 BuchiCegarLoop]: Abstraction has 303 states and 388 transitions. [2021-12-22 20:25:25,461 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-22 20:25:25,462 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 303 states and 388 transitions. [2021-12-22 20:25:25,463 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 215 [2021-12-22 20:25:25,464 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:25:25,464 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:25:25,464 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:25:25,465 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:25:25,465 INFO L791 eck$LassoCheckResult]: Stem: 1429#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 1320#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 1321#L651 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1423#L644 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 1300#L659 main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 1231#L615 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1232#L588 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1404#L720-2 [2021-12-22 20:25:25,465 INFO L793 eck$LassoCheckResult]: Loop: 1404#L720-2 assume !false; 1427#L721 assume test_~splverifierCounter~0#1 < 4; 1372#L722 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 1362#L730 assume !(0 != test_~tmp~5#1); 1345#L730-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 1338#L740 assume !(0 != test_~tmp___0~1#1); 1258#L740-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 1305#L750 assume 0 != test_~tmp___2~0#1; 1367#L756-2 assume { :begin_inline_timeShift } true; 1252#L786 assume !(0 != ~pumpRunning~0); 1253#L786-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 1333#L844 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 1301#L818-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 1265#L507-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 1266#L512-1 isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1; 1314#L964-3 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~2#1 := 0; 1229#L964-5 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 1230#L970-1 processEnvironment__wrappee__highWaterSensor_#t~ret41#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret41#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1; 1319#L822-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1272#L810-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1273#L818-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1369#L844-1 assume { :end_inline_processEnvironment } true; 1370#L793-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#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~4#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~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 1420#L467-2 __utac_acc__Specification3_spec__1_#t~ret34#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; 1421#L675 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 1425#L681-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1426#L803 assume { :end_inline_timeShift } true; 1404#L720-2 [2021-12-22 20:25:25,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:25:25,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-22 20:25:25,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:25:25,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443048977] [2021-12-22 20:25:25,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:25:25,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:25:25,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:25,477 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:25:25,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:25,491 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:25:25,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:25:25,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1041193540, now seen corresponding path program 1 times [2021-12-22 20:25:25,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:25:25,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009788229] [2021-12-22 20:25:25,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:25:25,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:25:25,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:25,499 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:25:25,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:25,513 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:25:25,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:25:25,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1416481280, now seen corresponding path program 1 times [2021-12-22 20:25:25,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:25:25,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231413066] [2021-12-22 20:25:25,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:25:25,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:25:25,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:25:25,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 20:25:25,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 20:25:25,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231413066] [2021-12-22 20:25:25,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231413066] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 20:25:25,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 20:25:25,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 20:25:25,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087527972] [2021-12-22 20:25:25,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 20:25:25,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 20:25:25,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 20:25:25,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 20:25:25,835 INFO L87 Difference]: Start difference. First operand 303 states and 388 transitions. cyclomatic complexity: 88 Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 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) [2021-12-22 20:25:25,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 20:25:25,984 INFO L93 Difference]: Finished difference Result 1077 states and 1372 transitions. [2021-12-22 20:25:25,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-22 20:25:25,987 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1077 states and 1372 transitions. [2021-12-22 20:25:25,995 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 809 [2021-12-22 20:25:26,000 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1077 states to 1077 states and 1372 transitions. [2021-12-22 20:25:26,001 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1077 [2021-12-22 20:25:26,002 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1077 [2021-12-22 20:25:26,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1077 states and 1372 transitions. [2021-12-22 20:25:26,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 20:25:26,004 INFO L681 BuchiCegarLoop]: Abstraction has 1077 states and 1372 transitions. [2021-12-22 20:25:26,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states and 1372 transitions. [2021-12-22 20:25:26,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 599. [2021-12-22 20:25:26,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 599 states have (on average 1.2637729549248748) internal successors, (757), 598 states have internal predecessors, (757), 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) [2021-12-22 20:25:26,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 757 transitions. [2021-12-22 20:25:26,028 INFO L704 BuchiCegarLoop]: Abstraction has 599 states and 757 transitions. [2021-12-22 20:25:26,028 INFO L587 BuchiCegarLoop]: Abstraction has 599 states and 757 transitions. [2021-12-22 20:25:26,028 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-22 20:25:26,029 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 599 states and 757 transitions. [2021-12-22 20:25:26,032 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 430 [2021-12-22 20:25:26,032 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:25:26,032 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:25:26,033 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:25:26,033 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:25:26,033 INFO L791 eck$LassoCheckResult]: Stem: 2833#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 2719#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 2720#L651 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2828#L644 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 2699#L659 main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 2630#L615 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 2631#L588 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2811#L720-2 [2021-12-22 20:25:26,034 INFO L793 eck$LassoCheckResult]: Loop: 2811#L720-2 assume !false; 3128#L721 assume test_~splverifierCounter~0#1 < 4; 2773#L722 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 2774#L730 assume !(0 != test_~tmp~5#1); 3188#L730-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 3185#L740 assume !(0 != test_~tmp___0~1#1); 3182#L740-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 3180#L750 assume 0 != test_~tmp___2~0#1; 3157#L756-2 assume { :begin_inline_timeShift } true; 3156#L786 assume !(0 != ~pumpRunning~0); 3139#L786-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 2890#L844 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 2888#L818-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 2886#L507-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 2884#L512-1 isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1; 2882#L964-3 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~2#1 := 0; 2879#L964-5 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 2877#L970-1 processEnvironment__wrappee__highWaterSensor_#t~ret41#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret41#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1; 2875#L822-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2671#L810-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2672#L818-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2770#L844-1 assume { :end_inline_processEnvironment } true; 2771#L793-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#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~4#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~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 3136#L467-2 __utac_acc__Specification3_spec__1_#t~ret34#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; 3135#L675 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 3134#L499 __utac_acc__Specification3_spec__1_#t~ret35#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret35#1;havoc __utac_acc__Specification3_spec__1_#t~ret35#1; 3132#L681 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 3130#L681-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3129#L803 assume { :end_inline_timeShift } true; 2811#L720-2 [2021-12-22 20:25:26,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:25:26,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2021-12-22 20:25:26,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:25:26,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003659203] [2021-12-22 20:25:26,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:25:26,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:25:26,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:26,044 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:25:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:26,053 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:25:26,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:25:26,054 INFO L85 PathProgramCache]: Analyzing trace with hash -139133417, now seen corresponding path program 1 times [2021-12-22 20:25:26,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:25:26,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278129399] [2021-12-22 20:25:26,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:25:26,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:25:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:26,063 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:25:26,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:26,074 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:25:26,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:25:26,075 INFO L85 PathProgramCache]: Analyzing trace with hash -264868141, now seen corresponding path program 1 times [2021-12-22 20:25:26,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:25:26,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332764912] [2021-12-22 20:25:26,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:25:26,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:25:26,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:26,088 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:25:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:25:26,101 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:25:28,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.12 08:25:28 BoogieIcfgContainer [2021-12-22 20:25:28,908 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-22 20:25:28,909 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 20:25:28,909 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 20:25:28,909 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 20:25:28,910 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:25:24" (3/4) ... [2021-12-22 20:25:28,912 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-22 20:25:28,973 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-22 20:25:28,973 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 20:25:28,974 INFO L158 Benchmark]: Toolchain (without parser) took 5684.60ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 74.2MB in the beginning and 72.6MB in the end (delta: 1.6MB). Peak memory consumption was 50.0MB. Max. memory is 16.1GB. [2021-12-22 20:25:28,974 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 83.9MB. Free memory was 43.4MB in the beginning and 43.3MB in the end (delta: 40.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 20:25:28,975 INFO L158 Benchmark]: CACSL2BoogieTranslator took 406.60ms. Allocated memory is still 107.0MB. Free memory was 74.0MB in the beginning and 75.4MB in the end (delta: -1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-22 20:25:28,975 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.98ms. Allocated memory is still 107.0MB. Free memory was 75.4MB in the beginning and 71.8MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-22 20:25:28,976 INFO L158 Benchmark]: Boogie Preprocessor took 40.79ms. Allocated memory is still 107.0MB. Free memory was 71.8MB in the beginning and 69.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 20:25:28,977 INFO L158 Benchmark]: RCFGBuilder took 533.41ms. Allocated memory is still 107.0MB. Free memory was 69.2MB in the beginning and 44.6MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-12-22 20:25:28,977 INFO L158 Benchmark]: BuchiAutomizer took 4536.00ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 44.6MB in the beginning and 75.7MB in the end (delta: -31.1MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2021-12-22 20:25:28,977 INFO L158 Benchmark]: Witness Printer took 64.21ms. Allocated memory is still 157.3MB. Free memory was 75.7MB in the beginning and 72.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 20:25:28,979 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 83.9MB. Free memory was 43.4MB in the beginning and 43.3MB in the end (delta: 40.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 406.60ms. Allocated memory is still 107.0MB. Free memory was 74.0MB in the beginning and 75.4MB in the end (delta: -1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.98ms. Allocated memory is still 107.0MB. Free memory was 75.4MB in the beginning and 71.8MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.79ms. Allocated memory is still 107.0MB. Free memory was 71.8MB in the beginning and 69.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 533.41ms. Allocated memory is still 107.0MB. Free memory was 69.2MB in the beginning and 44.6MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 4536.00ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 44.6MB in the beginning and 75.7MB in the end (delta: -31.1MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. * Witness Printer took 64.21ms. Allocated memory is still 157.3MB. Free memory was 75.7MB in the beginning and 72.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 599 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 656 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 599 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2087 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2087 mSDsluCounter, 3263 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2398 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 186 IncrementalHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 865 mSDtfsCounter, 186 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 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: 720]: 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@1ea4873c=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2325b36c=0, tmp___0=0, tmp=0, methaneLevelCritical=0, retValue_acc=1, tmp___0=1, \result=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6bcaf13f=0, tmp=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d0288b5=0, \result=1, \result=1, retValue_acc=0, tmp=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ad8878d=29, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56729a6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42d42a4b=0, tmp___2=29, tmp=1, cleanupTimeShifts=4, \result=0, head=0, \result=1, tmp___1=0, NULL=0, retValue_acc=1, waterLevel=1, systemActive=1, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@713bd1aa=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d82347d=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26b14a8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53d2cb86=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 720]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L424] int waterLevel = 1; [L425] int methaneLevelCritical = 0; [L527] int cleanupTimeShifts = 4; [L779] int pumpRunning = 0; [L780] int systemActive = 1; [L606] int retValue_acc ; [L607] int tmp ; [L611] FCALL select_helpers() [L612] FCALL select_features() [L613] CALL, EXPR valid_product() [L655] int retValue_acc ; [L658] retValue_acc = 1 [L659] return (retValue_acc); [L613] RET, EXPR valid_product() [L613] tmp = valid_product() [L615] COND TRUE \read(tmp) [L617] FCALL setup() [L618] CALL runTest() [L597] CALL test() [L711] int splverifierCounter ; [L712] int tmp ; [L713] int tmp___0 ; [L714] int tmp___1 ; [L715] int tmp___2 ; [L718] splverifierCounter = 0 Loop: [L720] COND TRUE 1 [L722] COND TRUE splverifierCounter < 4 [L728] tmp = __VERIFIER_nondet_int() [L730] COND FALSE !(\read(tmp)) [L738] tmp___0 = __VERIFIER_nondet_int() [L740] COND FALSE !(\read(tmp___0)) [L748] tmp___2 = __VERIFIER_nondet_int() [L750] COND TRUE \read(tmp___2) [L765] CALL timeShift() [L786] COND FALSE !(\read(pumpRunning)) [L793] COND TRUE \read(systemActive) [L795] CALL processEnvironment() [L841] int tmp ; [L844] COND FALSE !(\read(pumpRunning)) [L859] CALL processEnvironment__wrappee__highWaterSensor() [L815] int tmp ; [L818] COND TRUE ! pumpRunning [L820] CALL, EXPR isHighWaterLevel() [L956] int retValue_acc ; [L957] int tmp ; [L958] int tmp___0 ; [L962] CALL, EXPR isHighWaterSensorDry() [L504] int retValue_acc ; [L507] COND TRUE waterLevel < 2 [L508] retValue_acc = 1 [L509] return (retValue_acc); [L962] RET, EXPR isHighWaterSensorDry() [L962] tmp = isHighWaterSensorDry() [L964] COND TRUE \read(tmp) [L965] tmp___0 = 0 [L969] retValue_acc = tmp___0 [L970] return (retValue_acc); [L820] RET, EXPR isHighWaterLevel() [L820] tmp = isHighWaterLevel() [L822] COND FALSE !(\read(tmp)) [L828] FCALL processEnvironment__wrappee__base() [L859] RET processEnvironment__wrappee__highWaterSensor() [L795] RET processEnvironment() [L801] CALL __utac_acc__Specification3_spec__1() [L667] int tmp ; [L668] int tmp___0 ; [L669] int tmp___1 ; [L673] CALL, EXPR isMethaneLevelCritical() [L463] int retValue_acc ; [L466] retValue_acc = methaneLevelCritical [L467] return (retValue_acc); [L673] RET, EXPR isMethaneLevelCritical() [L673] tmp = isMethaneLevelCritical() [L675] COND FALSE !(\read(tmp)) [L679] CALL, EXPR getWaterLevel() [L495] int retValue_acc ; [L498] retValue_acc = waterLevel [L499] return (retValue_acc); [L679] RET, EXPR getWaterLevel() [L679] tmp___0 = getWaterLevel() [L681] COND FALSE !(tmp___0 == 2) [L801] RET __utac_acc__Specification3_spec__1() [L765] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-22 20:25:29,017 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)