./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product58.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 debcf50bf3bb3961401c62ca4b7217ea7cc93038f750143121614e56b550164d --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 15:59:21,575 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 15:59:21,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 15:59:21,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 15:59:21,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 15:59:21,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 15:59:21,617 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 15:59:21,619 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 15:59:21,620 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 15:59:21,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 15:59:21,625 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 15:59:21,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 15:59:21,627 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 15:59:21,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 15:59:21,629 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 15:59:21,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 15:59:21,633 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 15:59:21,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 15:59:21,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 15:59:21,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 15:59:21,641 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 15:59:21,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 15:59:21,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 15:59:21,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 15:59:21,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 15:59:21,649 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 15:59:21,649 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 15:59:21,650 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 15:59:21,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 15:59:21,651 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 15:59:21,652 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 15:59:21,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 15:59:21,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 15:59:21,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 15:59:21,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 15:59:21,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 15:59:21,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 15:59:21,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 15:59:21,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 15:59:21,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 15:59:21,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 15:59:21,658 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 15:59:21,659 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-14 15:59:21,688 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 15:59:21,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 15:59:21,689 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 15:59:21,689 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 15:59:21,691 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 15:59:21,691 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 15:59:21,691 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 15:59:21,692 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 15:59:21,692 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 15:59:21,692 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 15:59:21,692 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 15:59:21,693 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 15:59:21,693 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 15:59:21,693 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 15:59:21,693 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 15:59:21,693 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 15:59:21,693 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 15:59:21,694 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 15:59:21,694 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 15:59:21,694 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 15:59:21,694 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 15:59:21,694 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 15:59:21,694 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 15:59:21,694 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 15:59:21,695 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 15:59:21,695 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 15:59:21,695 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 15:59:21,695 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 15:59:21,695 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 15:59:21,696 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 15:59:21,696 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 15:59:21,697 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 15:59:21,697 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> debcf50bf3bb3961401c62ca4b7217ea7cc93038f750143121614e56b550164d [2022-07-14 15:59:21,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 15:59:21,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 15:59:21,957 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 15:59:21,957 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 15:59:21,958 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 15:59:21,959 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2022-07-14 15:59:22,016 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e42ee66c8/cc6c3b4da5f6442abf37e5e3b67f816b/FLAGe9fe6e7e7 [2022-07-14 15:59:22,465 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 15:59:22,465 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2022-07-14 15:59:22,474 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e42ee66c8/cc6c3b4da5f6442abf37e5e3b67f816b/FLAGe9fe6e7e7 [2022-07-14 15:59:22,486 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e42ee66c8/cc6c3b4da5f6442abf37e5e3b67f816b [2022-07-14 15:59:22,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 15:59:22,491 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 15:59:22,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 15:59:22,493 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 15:59:22,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 15:59:22,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:59:22" (1/1) ... [2022-07-14 15:59:22,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a773566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:59:22, skipping insertion in model container [2022-07-14 15:59:22,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:59:22" (1/1) ... [2022-07-14 15:59:22,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 15:59:22,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 15:59:22,679 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c[11718,11731] [2022-07-14 15:59:22,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:59:22,713 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 15:59:22,754 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c[11718,11731] [2022-07-14 15:59:22,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:59:22,790 INFO L208 MainTranslator]: Completed translation [2022-07-14 15:59:22,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:59:22 WrapperNode [2022-07-14 15:59:22,790 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 15:59:22,791 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 15:59:22,791 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 15:59:22,791 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 15:59:22,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:59:22" (1/1) ... [2022-07-14 15:59:22,811 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:59:22" (1/1) ... [2022-07-14 15:59:22,846 INFO L137 Inliner]: procedures = 57, calls = 157, calls flagged for inlining = 54, calls inlined = 96, statements flattened = 728 [2022-07-14 15:59:22,846 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 15:59:22,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 15:59:22,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 15:59:22,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 15:59:22,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:59:22" (1/1) ... [2022-07-14 15:59:22,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:59:22" (1/1) ... [2022-07-14 15:59:22,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:59:22" (1/1) ... [2022-07-14 15:59:22,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:59:22" (1/1) ... [2022-07-14 15:59:22,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:59:22" (1/1) ... [2022-07-14 15:59:22,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:59:22" (1/1) ... [2022-07-14 15:59:22,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:59:22" (1/1) ... [2022-07-14 15:59:22,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 15:59:22,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 15:59:22,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 15:59:22,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 15:59:22,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:59:22" (1/1) ... [2022-07-14 15:59:22,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:59:22,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:59:22,934 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 15:59:22,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-14 15:59:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 15:59:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 15:59:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 15:59:22,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 15:59:23,082 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 15:59:23,084 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 15:59:23,500 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 15:59:23,511 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 15:59:23,511 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-14 15:59:23,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:59:23 BoogieIcfgContainer [2022-07-14 15:59:23,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 15:59:23,514 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 15:59:23,514 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 15:59:23,517 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 15:59:23,519 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:59:23,520 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 03:59:22" (1/3) ... [2022-07-14 15:59:23,521 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3285c9c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:59:23, skipping insertion in model container [2022-07-14 15:59:23,521 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:59:23,521 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:59:22" (2/3) ... [2022-07-14 15:59:23,522 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3285c9c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:59:23, skipping insertion in model container [2022-07-14 15:59:23,522 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:59:23,522 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:59:23" (3/3) ... [2022-07-14 15:59:23,523 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product58.cil.c [2022-07-14 15:59:23,580 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 15:59:23,580 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 15:59:23,580 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 15:59:23,580 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 15:59:23,580 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 15:59:23,580 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 15:59:23,581 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 15:59:23,581 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 15:59:23,588 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 187 states, 186 states have (on average 1.3602150537634408) internal successors, (253), 186 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:59:23,625 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2022-07-14 15:59:23,626 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:59:23,626 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:59:23,632 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:59:23,632 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:59:23,632 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 15:59:23,634 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 187 states, 186 states have (on average 1.3602150537634408) internal successors, (253), 186 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:59:23,647 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2022-07-14 15:59:23,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:59:23,649 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:59:23,651 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:59:23,651 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:59:23,694 INFO L752 eck$LassoCheckResult]: Stem: 169#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; 56#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret34#1, main_~retValue_acc~7#1, main_~tmp~4#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 146#L688true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 84#L681true 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; 67#L696true main_#t~ret34#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret34#1;havoc main_#t~ret34#1; 182#L652true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 172#L625true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 148#L937-2true [2022-07-14 15:59:23,695 INFO L754 eck$LassoCheckResult]: Loop: 148#L937-2true assume !false; 164#L938true assume test_~splverifierCounter~0#1 < 4; 187#L939true test_~tmp~10#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 70#L947true assume !(0 != test_~tmp~10#1); 141#L947-2true test_~tmp___0~3#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 87#L957true assume !(0 != test_~tmp___0~3#1); 36#L957-2true test_~tmp___2~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 81#L967true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 154#L923true assume { :end_inline_startSystem } true; 25#L975-2true assume { :begin_inline_timeShift } true; 59#L711true assume !(0 != ~pumpRunning~0); 93#L711-2true assume !(0 != ~systemActive~0); 185#L718-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret27#1, __utac_acc__Specification4_spec__1_#t~ret28#1, __utac_acc__Specification4_spec__1_~tmp~3#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~3#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#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; 95#L536true __utac_acc__Specification4_spec__1_#t~ret27#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~3#1 := __utac_acc__Specification4_spec__1_#t~ret27#1;havoc __utac_acc__Specification4_spec__1_#t~ret27#1; 121#L427true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3#1); 91#L427-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 88#L728true assume { :end_inline_timeShift } true; 148#L937-2true [2022-07-14 15:59:23,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:59:23,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-07-14 15:59:23,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:59:23,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850921260] [2022-07-14 15:59:23,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:59:23,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:59:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:59:23,838 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:59:23,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:59:23,893 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:59:23,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:59:23,896 INFO L85 PathProgramCache]: Analyzing trace with hash -426060191, now seen corresponding path program 1 times [2022-07-14 15:59:23,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:59:23,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472218143] [2022-07-14 15:59:23,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:59:23,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:59:23,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:59:23,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:59:23,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 15:59:23,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472218143] [2022-07-14 15:59:23,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472218143] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 15:59:23,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 15:59:23,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 15:59:23,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066659247] [2022-07-14 15:59:23,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 15:59:23,972 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-14 15:59:23,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 15:59:24,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 15:59:24,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 15:59:24,011 INFO L87 Difference]: Start difference. First operand has 187 states, 186 states have (on average 1.3602150537634408) internal successors, (253), 186 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:59:24,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 15:59:24,055 INFO L93 Difference]: Finished difference Result 184 states and 240 transitions. [2022-07-14 15:59:24,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 15:59:24,061 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 184 states and 240 transitions. [2022-07-14 15:59:24,066 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 117 [2022-07-14 15:59:24,070 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 184 states to 174 states and 229 transitions. [2022-07-14 15:59:24,072 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 174 [2022-07-14 15:59:24,075 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 174 [2022-07-14 15:59:24,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 174 states and 229 transitions. [2022-07-14 15:59:24,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:59:24,078 INFO L369 hiAutomatonCegarLoop]: Abstraction has 174 states and 229 transitions. [2022-07-14 15:59:24,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states and 229 transitions. [2022-07-14 15:59:24,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2022-07-14 15:59:24,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 174 states have (on average 1.3160919540229885) internal successors, (229), 173 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:59:24,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 229 transitions. [2022-07-14 15:59:24,111 INFO L392 hiAutomatonCegarLoop]: Abstraction has 174 states and 229 transitions. [2022-07-14 15:59:24,112 INFO L374 stractBuchiCegarLoop]: Abstraction has 174 states and 229 transitions. [2022-07-14 15:59:24,112 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-14 15:59:24,112 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 174 states and 229 transitions. [2022-07-14 15:59:24,114 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 117 [2022-07-14 15:59:24,114 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:59:24,114 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:59:24,115 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:59:24,115 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:59:24,115 INFO L752 eck$LassoCheckResult]: Stem: 552#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; 474#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret34#1, main_~retValue_acc~7#1, main_~tmp~4#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 475#L688 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 511#L681 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; 486#L696 main_#t~ret34#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret34#1;havoc main_#t~ret34#1; 487#L652 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 553#L625 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 516#L937-2 [2022-07-14 15:59:24,115 INFO L754 eck$LassoCheckResult]: Loop: 516#L937-2 assume !false; 547#L938 assume test_~splverifierCounter~0#1 < 4; 550#L939 test_~tmp~10#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 492#L947 assume !(0 != test_~tmp~10#1); 462#L947-2 test_~tmp___0~3#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 514#L957 assume !(0 != test_~tmp___0~3#1); 442#L957-2 test_~tmp___2~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 443#L967 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 508#L975 assume 0 != test_~tmp___1~0#1; 425#L975-2 assume { :begin_inline_timeShift } true; 426#L711 assume !(0 != ~pumpRunning~0); 477#L711-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 484#L769 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 485#L743-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 496#L735-3 assume { :end_inline_processEnvironment__wrappee__base } true; 384#L743-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 385#L769-1 assume { :end_inline_processEnvironment } true; 499#L718-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret27#1, __utac_acc__Specification4_spec__1_#t~ret28#1, __utac_acc__Specification4_spec__1_~tmp~3#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~3#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#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; 521#L536 __utac_acc__Specification4_spec__1_#t~ret27#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~3#1 := __utac_acc__Specification4_spec__1_#t~ret27#1;havoc __utac_acc__Specification4_spec__1_#t~ret27#1; 522#L427 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3#1); 519#L427-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 515#L728 assume { :end_inline_timeShift } true; 516#L937-2 [2022-07-14 15:59:24,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:59:24,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-07-14 15:59:24,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:59:24,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840962230] [2022-07-14 15:59:24,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:59:24,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:59:24,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:59:24,133 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:59:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:59:24,151 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:59:24,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:59:24,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1680076909, now seen corresponding path program 1 times [2022-07-14 15:59:24,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:59:24,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054123964] [2022-07-14 15:59:24,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:59:24,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:59:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:59:24,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:59:24,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 15:59:24,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054123964] [2022-07-14 15:59:24,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054123964] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 15:59:24,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 15:59:24,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 15:59:24,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268794661] [2022-07-14 15:59:24,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 15:59:24,186 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-14 15:59:24,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 15:59:24,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 15:59:24,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 15:59:24,187 INFO L87 Difference]: Start difference. First operand 174 states and 229 transitions. cyclomatic complexity: 57 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:59:24,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 15:59:24,262 INFO L93 Difference]: Finished difference Result 236 states and 298 transitions. [2022-07-14 15:59:24,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 15:59:24,263 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 236 states and 298 transitions. [2022-07-14 15:59:24,264 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 164 [2022-07-14 15:59:24,266 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 236 states to 236 states and 298 transitions. [2022-07-14 15:59:24,266 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 236 [2022-07-14 15:59:24,266 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 236 [2022-07-14 15:59:24,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 236 states and 298 transitions. [2022-07-14 15:59:24,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:59:24,267 INFO L369 hiAutomatonCegarLoop]: Abstraction has 236 states and 298 transitions. [2022-07-14 15:59:24,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states and 298 transitions. [2022-07-14 15:59:24,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2022-07-14 15:59:24,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 236 states have (on average 1.2627118644067796) internal successors, (298), 235 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:59:24,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 298 transitions. [2022-07-14 15:59:24,279 INFO L392 hiAutomatonCegarLoop]: Abstraction has 236 states and 298 transitions. [2022-07-14 15:59:24,279 INFO L374 stractBuchiCegarLoop]: Abstraction has 236 states and 298 transitions. [2022-07-14 15:59:24,280 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-14 15:59:24,280 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 236 states and 298 transitions. [2022-07-14 15:59:24,281 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 164 [2022-07-14 15:59:24,282 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:59:24,282 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:59:24,283 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:59:24,283 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:59:24,283 INFO L752 eck$LassoCheckResult]: Stem: 975#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; 889#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret34#1, main_~retValue_acc~7#1, main_~tmp~4#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 890#L688 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 927#L681 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; 902#L696 main_#t~ret34#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret34#1;havoc main_#t~ret34#1; 903#L652 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 976#L625 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 932#L937-2 [2022-07-14 15:59:24,284 INFO L754 eck$LassoCheckResult]: Loop: 932#L937-2 assume !false; 968#L938 assume test_~splverifierCounter~0#1 < 4; 973#L939 test_~tmp~10#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 908#L947 assume !(0 != test_~tmp~10#1); 879#L947-2 test_~tmp___0~3#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 930#L957 assume !(0 != test_~tmp___0~3#1); 858#L957-2 test_~tmp___2~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 859#L967 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 922#L975 assume 0 != test_~tmp___1~0#1; 840#L975-2 assume { :begin_inline_timeShift } true; 841#L711 assume !(0 != ~pumpRunning~0); 893#L711-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 900#L769 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 901#L743-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 939#L544-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 967#L549-1 isHighWaterLevel_#t~ret48#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret48#1;havoc isHighWaterLevel_#t~ret48#1; 953#L889-3 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0; 796#L889-5 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 797#L895-1 processEnvironment__wrappee__highWaterSensor_#t~ret36#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret36#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1; 947#L747-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 949#L735-2 assume { :end_inline_processEnvironment__wrappee__base } true; 802#L743-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 803#L769-1 assume { :end_inline_processEnvironment } true; 914#L718-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret27#1, __utac_acc__Specification4_spec__1_#t~ret28#1, __utac_acc__Specification4_spec__1_~tmp~3#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~3#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#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; 937#L536 __utac_acc__Specification4_spec__1_#t~ret27#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~3#1 := __utac_acc__Specification4_spec__1_#t~ret27#1;havoc __utac_acc__Specification4_spec__1_#t~ret27#1; 938#L427 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3#1); 935#L427-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 931#L728 assume { :end_inline_timeShift } true; 932#L937-2 [2022-07-14 15:59:24,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:59:24,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-07-14 15:59:24,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:59:24,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095300445] [2022-07-14 15:59:24,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:59:24,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:59:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:59:24,302 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:59:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:59:24,319 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:59:24,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:59:24,324 INFO L85 PathProgramCache]: Analyzing trace with hash -44819893, now seen corresponding path program 1 times [2022-07-14 15:59:24,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:59:24,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274162250] [2022-07-14 15:59:24,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:59:24,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:59:24,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:59:24,361 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:59:24,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:59:24,367 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:59:24,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:59:24,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1295801841, now seen corresponding path program 1 times [2022-07-14 15:59:24,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:59:24,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277780191] [2022-07-14 15:59:24,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:59:24,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:59:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:59:24,385 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:59:24,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:59:24,408 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:59:27,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.07 03:59:27 BoogieIcfgContainer [2022-07-14 15:59:27,069 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-14 15:59:27,069 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 15:59:27,070 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 15:59:27,070 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 15:59:27,070 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:59:23" (3/4) ... [2022-07-14 15:59:27,072 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-14 15:59:27,122 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 15:59:27,123 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 15:59:27,127 INFO L158 Benchmark]: Toolchain (without parser) took 4635.13ms. Allocated memory was 98.6MB in the beginning and 167.8MB in the end (delta: 69.2MB). Free memory was 60.7MB in the beginning and 139.4MB in the end (delta: -78.7MB). Peak memory consumption was 68.6MB. Max. memory is 16.1GB. [2022-07-14 15:59:27,127 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 98.6MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 15:59:27,128 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.15ms. Allocated memory is still 98.6MB. Free memory was 60.5MB in the beginning and 41.7MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-14 15:59:27,128 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.32ms. Allocated memory is still 98.6MB. Free memory was 41.6MB in the beginning and 37.8MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-14 15:59:27,128 INFO L158 Benchmark]: Boogie Preprocessor took 52.33ms. Allocated memory is still 98.6MB. Free memory was 37.8MB in the beginning and 75.6MB in the end (delta: -37.7MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2022-07-14 15:59:27,129 INFO L158 Benchmark]: RCFGBuilder took 613.64ms. Allocated memory is still 98.6MB. Free memory was 75.6MB in the beginning and 51.8MB in the end (delta: 23.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-07-14 15:59:27,129 INFO L158 Benchmark]: BuchiAutomizer took 3554.99ms. Allocated memory was 98.6MB in the beginning and 138.4MB in the end (delta: 39.8MB). Free memory was 51.5MB in the beginning and 39.2MB in the end (delta: 12.3MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. [2022-07-14 15:59:27,130 INFO L158 Benchmark]: Witness Printer took 56.52ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 39.2MB in the beginning and 139.4MB in the end (delta: -100.2MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2022-07-14 15:59:27,132 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 98.6MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.15ms. Allocated memory is still 98.6MB. Free memory was 60.5MB in the beginning and 41.7MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.32ms. Allocated memory is still 98.6MB. Free memory was 41.6MB in the beginning and 37.8MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.33ms. Allocated memory is still 98.6MB. Free memory was 37.8MB in the beginning and 75.6MB in the end (delta: -37.7MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * RCFGBuilder took 613.64ms. Allocated memory is still 98.6MB. Free memory was 75.6MB in the beginning and 51.8MB in the end (delta: 23.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 3554.99ms. Allocated memory was 98.6MB in the beginning and 138.4MB in the end (delta: 39.8MB). Free memory was 51.5MB in the beginning and 39.2MB in the end (delta: 12.3MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. * Witness Printer took 56.52ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 39.2MB in the beginning and 139.4MB in the end (delta: -100.2MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 236 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 397 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 397 mSDsluCounter, 553 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 102 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 451 mSDtfsCounter, 33 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 937]: 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@4aba99ac=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4208ed18=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4075ea32=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1be0798=29, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31845c9e=0, NULL=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c8329af=0, methaneLevelCritical=0, retValue_acc=1, tmp=0, retValue_acc=1, retValue_acc=0, tmp=1, tmp=1, \result=1, \result=1, retValue_acc=0, tmp___2=0, tmp=1, cleanupTimeShifts=4, \result=0, tmp=0, head=0, \result=1, tmp___1=29, NULL=0, retValue_acc=1, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@eaa8741=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24da1be3=0, tmp___0=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44d9e1db=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c0465e1=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 937]: 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; [L461] int waterLevel = 1; [L462] int methaneLevelCritical = 0; [L564] int cleanupTimeShifts = 4; [L704] int pumpRunning = 0; [L705] int systemActive = 1; [L643] int retValue_acc ; [L644] int tmp ; [L648] FCALL select_helpers() [L649] FCALL select_features() [L650] CALL, EXPR valid_product() [L692] int retValue_acc ; [L695] retValue_acc = 1 [L696] return (retValue_acc); [L650] RET, EXPR valid_product() [L650] tmp = valid_product() [L652] COND TRUE \read(tmp) [L654] FCALL setup() [L655] CALL runTest() [L634] CALL test() [L928] int splverifierCounter ; [L929] int tmp ; [L930] int tmp___0 ; [L931] int tmp___1 ; [L932] int tmp___2 ; [L935] splverifierCounter = 0 Loop: [L937] COND TRUE 1 [L939] COND TRUE splverifierCounter < 4 [L945] tmp = __VERIFIER_nondet_int() [L947] COND FALSE !(\read(tmp)) [L955] tmp___0 = __VERIFIER_nondet_int() [L957] COND FALSE !(\read(tmp___0)) [L965] tmp___2 = __VERIFIER_nondet_int() [L967] COND FALSE !(\read(tmp___2)) [L973] tmp___1 = __VERIFIER_nondet_int() [L975] COND TRUE \read(tmp___1) [L982] CALL timeShift() [L711] COND FALSE !(\read(pumpRunning)) [L718] COND TRUE \read(systemActive) [L720] CALL processEnvironment() [L766] int tmp ; [L769] COND FALSE !(\read(pumpRunning)) [L784] CALL processEnvironment__wrappee__highWaterSensor() [L740] int tmp ; [L743] COND TRUE ! pumpRunning [L745] CALL, EXPR isHighWaterLevel() [L881] int retValue_acc ; [L882] int tmp ; [L883] int tmp___0 ; [L887] CALL, EXPR isHighWaterSensorDry() [L541] int retValue_acc ; [L544] COND TRUE waterLevel < 2 [L545] retValue_acc = 1 [L546] return (retValue_acc); [L887] RET, EXPR isHighWaterSensorDry() [L887] tmp = isHighWaterSensorDry() [L889] COND TRUE \read(tmp) [L890] tmp___0 = 0 [L894] retValue_acc = tmp___0 [L895] return (retValue_acc); [L745] RET, EXPR isHighWaterLevel() [L745] tmp = isHighWaterLevel() [L747] COND FALSE !(\read(tmp)) [L753] FCALL processEnvironment__wrappee__base() [L784] RET processEnvironment__wrappee__highWaterSensor() [L720] RET processEnvironment() [L726] CALL __utac_acc__Specification4_spec__1() [L420] int tmp ; [L421] int tmp___0 ; [L425] CALL, EXPR getWaterLevel() [L532] int retValue_acc ; [L535] retValue_acc = waterLevel [L536] return (retValue_acc); [L425] RET, EXPR getWaterLevel() [L425] tmp = getWaterLevel() [L427] COND FALSE !(tmp == 0) [L726] RET __utac_acc__Specification4_spec__1() [L982] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-14 15:59:27,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)