./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product50.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 d44823aac48cec2911f68e219166f3ac1836e56b97e3a905bce4580d699376f2 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:01,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:01,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:01,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:01,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:01,685 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:01,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:01,690 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:01,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:01,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:01,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:01,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:01,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:01,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:01,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:01,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:01,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:01,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:01,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:01,716 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:01,717 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:01,718 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:01,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:01,721 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:01,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:01,724 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:01,725 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:01,726 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:01,726 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:01,727 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:01,727 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:01,728 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:01,730 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:01,730 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:01,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:01,732 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:01,732 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:01,732 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:01,733 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:01,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:01,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:01,735 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:01,760 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:01,760 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:01,761 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:01,761 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:01,762 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:01,762 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:01,762 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:01,763 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:01,763 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:01,763 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:01,764 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:01,764 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:01,764 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:01,764 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:01,765 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:01,765 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:01,765 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:01,765 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:01,765 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:01,765 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:01,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:01,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:01,766 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:01,766 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:01,766 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:01,766 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:01,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:01,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:01,767 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:01,767 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:01,767 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:01,768 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:01,768 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d44823aac48cec2911f68e219166f3ac1836e56b97e3a905bce4580d699376f2 [2022-02-21 04:18:02,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:02,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:02,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:02,064 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:02,065 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:02,066 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c [2022-02-21 04:18:02,115 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a91c1a21f/f2ab39cfe93f405cbd10236cf808addb/FLAG788e29f61 [2022-02-21 04:18:02,607 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:02,608 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c [2022-02-21 04:18:02,628 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a91c1a21f/f2ab39cfe93f405cbd10236cf808addb/FLAG788e29f61 [2022-02-21 04:18:02,928 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a91c1a21f/f2ab39cfe93f405cbd10236cf808addb [2022-02-21 04:18:02,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:02,931 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:02,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:02,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:02,939 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:02,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:02" (1/1) ... [2022-02-21 04:18:02,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@404936e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:02, skipping insertion in model container [2022-02-21 04:18:02,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:02" (1/1) ... [2022-02-21 04:18:02,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:02,984 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:03,318 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_product50.cil.c[13010,13023] [2022-02-21 04:18:03,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:03,402 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:03,474 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_product50.cil.c[13010,13023] [2022-02-21 04:18:03,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:03,521 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:03,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:03 WrapperNode [2022-02-21 04:18:03,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:03,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:03,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:03,524 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:03,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:03" (1/1) ... [2022-02-21 04:18:03,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:03" (1/1) ... [2022-02-21 04:18:03,601 INFO L137 Inliner]: procedures = 56, calls = 155, calls flagged for inlining = 52, calls inlined = 78, statements flattened = 602 [2022-02-21 04:18:03,602 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:03,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:03,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:03,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:03,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:03" (1/1) ... [2022-02-21 04:18:03,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:03" (1/1) ... [2022-02-21 04:18:03,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:03" (1/1) ... [2022-02-21 04:18:03,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:03" (1/1) ... [2022-02-21 04:18:03,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:03" (1/1) ... [2022-02-21 04:18:03,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:03" (1/1) ... [2022-02-21 04:18:03,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:03" (1/1) ... [2022-02-21 04:18:03,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:03,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:03,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:03,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:03,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:03" (1/1) ... [2022-02-21 04:18:03,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:03,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:03,701 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:18:03,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:18:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:03,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:03,837 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:03,839 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:04,375 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:04,383 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:04,388 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:04,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:04 BoogieIcfgContainer [2022-02-21 04:18:04,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:04,392 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:04,392 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:04,394 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:04,395 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:04,395 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:02" (1/3) ... [2022-02-21 04:18:04,395 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@480b36a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:04, skipping insertion in model container [2022-02-21 04:18:04,396 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:04,396 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:03" (2/3) ... [2022-02-21 04:18:04,396 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@480b36a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:04, skipping insertion in model container [2022-02-21 04:18:04,396 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:04,397 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:04" (3/3) ... [2022-02-21 04:18:04,398 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product50.cil.c [2022-02-21 04:18:04,438 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:04,439 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:04,439 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:04,439 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:04,439 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:04,439 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:04,439 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:04,440 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:04,459 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 163 states, 162 states have (on average 1.376543209876543) internal successors, (223), 162 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:04,526 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 105 [2022-02-21 04:18:04,526 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:04,527 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:04,534 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:04,534 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:04,535 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:04,538 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 163 states, 162 states have (on average 1.376543209876543) internal successors, (223), 162 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:04,553 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 105 [2022-02-21 04:18:04,553 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:04,553 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:04,554 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:04,554 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:04,558 INFO L791 eck$LassoCheckResult]: Stem: 143#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;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 50#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~3#1, main_~tmp~4#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 3#L580true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 68#L573true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 113#L588true main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 109#L535true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 44#L508true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 138#L919-2true [2022-02-21 04:18:04,559 INFO L793 eck$LassoCheckResult]: Loop: 138#L919-2true assume !false; 145#L920true assume test_~splverifierCounter~0#1 < 4; 136#L921true test_~tmp~9#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 96#L929true assume !(0 != test_~tmp~9#1); 82#L929-2true test_~tmp___0~3#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 164#L939true assume !(0 != test_~tmp___0~3#1); 127#L939-2true test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 51#L949true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 144#L905true assume { :end_inline_startSystem } true; 32#L957-2true assume { :begin_inline_timeShift } true; 53#L711true assume !(0 != ~pumpRunning~0); 87#L711-2true assume !(0 != ~systemActive~0); 160#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~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 38#L673true __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; 111#L427true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3#1); 86#L427-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 84#L728true assume { :end_inline_timeShift } true; 138#L919-2true [2022-02-21 04:18:04,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:04,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:18:04,572 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:04,573 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771920054] [2022-02-21 04:18:04,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:04,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:04,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:04,687 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:04,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:04,759 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:04,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:04,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1136063135, now seen corresponding path program 1 times [2022-02-21 04:18:04,762 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:04,762 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100310745] [2022-02-21 04:18:04,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:04,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:04,826 INFO L290 TraceCheckUtils]: 0: Hoare triple {169#true} assume !false; {169#true} is VALID [2022-02-21 04:18:04,826 INFO L290 TraceCheckUtils]: 1: Hoare triple {169#true} assume test_~splverifierCounter~0#1 < 4; {169#true} is VALID [2022-02-21 04:18:04,827 INFO L290 TraceCheckUtils]: 2: Hoare triple {169#true} test_~tmp~9#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; {169#true} is VALID [2022-02-21 04:18:04,827 INFO L290 TraceCheckUtils]: 3: Hoare triple {169#true} assume !(0 != test_~tmp~9#1); {169#true} is VALID [2022-02-21 04:18:04,827 INFO L290 TraceCheckUtils]: 4: Hoare triple {169#true} test_~tmp___0~3#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; {169#true} is VALID [2022-02-21 04:18:04,828 INFO L290 TraceCheckUtils]: 5: Hoare triple {169#true} assume !(0 != test_~tmp___0~3#1); {169#true} is VALID [2022-02-21 04:18:04,828 INFO L290 TraceCheckUtils]: 6: Hoare triple {169#true} test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; {169#true} is VALID [2022-02-21 04:18:04,829 INFO L290 TraceCheckUtils]: 7: Hoare triple {169#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {171#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:04,829 INFO L290 TraceCheckUtils]: 8: Hoare triple {171#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {171#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:04,830 INFO L290 TraceCheckUtils]: 9: Hoare triple {171#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true; {171#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:04,831 INFO L290 TraceCheckUtils]: 10: Hoare triple {171#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {171#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:04,832 INFO L290 TraceCheckUtils]: 11: Hoare triple {171#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {170#false} is VALID [2022-02-21 04:18:04,832 INFO L290 TraceCheckUtils]: 12: Hoare triple {170#false} 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~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; {170#false} is VALID [2022-02-21 04:18:04,832 INFO L290 TraceCheckUtils]: 13: Hoare triple {170#false} __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; {170#false} is VALID [2022-02-21 04:18:04,833 INFO L290 TraceCheckUtils]: 14: Hoare triple {170#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3#1); {170#false} is VALID [2022-02-21 04:18:04,833 INFO L290 TraceCheckUtils]: 15: Hoare triple {170#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {170#false} is VALID [2022-02-21 04:18:04,833 INFO L290 TraceCheckUtils]: 16: Hoare triple {170#false} assume { :end_inline_timeShift } true; {170#false} is VALID [2022-02-21 04:18:04,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:04,835 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:04,835 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100310745] [2022-02-21 04:18:04,836 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100310745] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:04,836 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:04,836 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:04,837 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480374509] [2022-02-21 04:18:04,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:04,842 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:04,843 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:04,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:04,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:04,872 INFO L87 Difference]: Start difference. First operand has 163 states, 162 states have (on average 1.376543209876543) internal successors, (223), 162 states have internal predecessors, (223), 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) [2022-02-21 04:18:05,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:05,121 INFO L93 Difference]: Finished difference Result 160 states and 210 transitions. [2022-02-21 04:18:05,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:05,123 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 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) [2022-02-21 04:18:05,141 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:05,147 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 210 transitions. [2022-02-21 04:18:05,168 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 101 [2022-02-21 04:18:05,176 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 150 states and 199 transitions. [2022-02-21 04:18:05,178 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 150 [2022-02-21 04:18:05,178 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 150 [2022-02-21 04:18:05,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 150 states and 199 transitions. [2022-02-21 04:18:05,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:05,180 INFO L681 BuchiCegarLoop]: Abstraction has 150 states and 199 transitions. [2022-02-21 04:18:05,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states and 199 transitions. [2022-02-21 04:18:05,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-02-21 04:18:05,213 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:05,219 INFO L82 GeneralOperation]: Start isEquivalent. First operand 150 states and 199 transitions. Second operand has 150 states, 150 states have (on average 1.3266666666666667) internal successors, (199), 149 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:05,220 INFO L74 IsIncluded]: Start isIncluded. First operand 150 states and 199 transitions. Second operand has 150 states, 150 states have (on average 1.3266666666666667) internal successors, (199), 149 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:05,222 INFO L87 Difference]: Start difference. First operand 150 states and 199 transitions. Second operand has 150 states, 150 states have (on average 1.3266666666666667) internal successors, (199), 149 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:05,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:05,230 INFO L93 Difference]: Finished difference Result 150 states and 199 transitions. [2022-02-21 04:18:05,231 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 199 transitions. [2022-02-21 04:18:05,233 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:05,233 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:05,234 INFO L74 IsIncluded]: Start isIncluded. First operand has 150 states, 150 states have (on average 1.3266666666666667) internal successors, (199), 149 states have internal predecessors, (199), 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 150 states and 199 transitions. [2022-02-21 04:18:05,237 INFO L87 Difference]: Start difference. First operand has 150 states, 150 states have (on average 1.3266666666666667) internal successors, (199), 149 states have internal predecessors, (199), 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 150 states and 199 transitions. [2022-02-21 04:18:05,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:05,244 INFO L93 Difference]: Finished difference Result 150 states and 199 transitions. [2022-02-21 04:18:05,244 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 199 transitions. [2022-02-21 04:18:05,255 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:05,255 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:05,255 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:05,256 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:05,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 150 states have (on average 1.3266666666666667) internal successors, (199), 149 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:05,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 199 transitions. [2022-02-21 04:18:05,267 INFO L704 BuchiCegarLoop]: Abstraction has 150 states and 199 transitions. [2022-02-21 04:18:05,267 INFO L587 BuchiCegarLoop]: Abstraction has 150 states and 199 transitions. [2022-02-21 04:18:05,267 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:05,267 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 150 states and 199 transitions. [2022-02-21 04:18:05,269 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 101 [2022-02-21 04:18:05,269 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:05,269 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:05,270 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:05,270 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] [2022-02-21 04:18:05,271 INFO L791 eck$LassoCheckResult]: Stem: 479#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;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 407#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~3#1, main_~tmp~4#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 332#L580 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 333#L573 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 429#L588 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 468#L535 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 398#L508 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 399#L919-2 [2022-02-21 04:18:05,271 INFO L793 eck$LassoCheckResult]: Loop: 399#L919-2 assume !false; 478#L920 assume test_~splverifierCounter~0#1 < 4; 477#L921 test_~tmp~9#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 455#L929 assume !(0 != test_~tmp~9#1); 446#L929-2 test_~tmp___0~3#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 447#L939 assume !(0 != test_~tmp___0~3#1); 348#L939-2 test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 410#L949 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 411#L957 assume 0 != test_~tmp___1~0#1; 381#L957-2 assume { :begin_inline_timeShift } true; 382#L711 assume !(0 != ~pumpRunning~0); 413#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; 415#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; 416#L743-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 433#L735-3 assume { :end_inline_processEnvironment__wrappee__base } true; 336#L743-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 337#L769-1 assume { :end_inline_processEnvironment } true; 434#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~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 391#L673 __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; 392#L427 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3#1); 448#L427-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 445#L728 assume { :end_inline_timeShift } true; 399#L919-2 [2022-02-21 04:18:05,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:05,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:18:05,273 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:05,273 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10671346] [2022-02-21 04:18:05,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:05,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:05,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:05,310 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:05,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:05,343 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:05,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:05,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1694289415, now seen corresponding path program 1 times [2022-02-21 04:18:05,344 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:05,344 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618604200] [2022-02-21 04:18:05,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:05,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:05,380 INFO L290 TraceCheckUtils]: 0: Hoare triple {787#true} assume !false; {787#true} is VALID [2022-02-21 04:18:05,380 INFO L290 TraceCheckUtils]: 1: Hoare triple {787#true} assume test_~splverifierCounter~0#1 < 4; {787#true} is VALID [2022-02-21 04:18:05,380 INFO L290 TraceCheckUtils]: 2: Hoare triple {787#true} test_~tmp~9#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; {787#true} is VALID [2022-02-21 04:18:05,381 INFO L290 TraceCheckUtils]: 3: Hoare triple {787#true} assume !(0 != test_~tmp~9#1); {787#true} is VALID [2022-02-21 04:18:05,381 INFO L290 TraceCheckUtils]: 4: Hoare triple {787#true} test_~tmp___0~3#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; {787#true} is VALID [2022-02-21 04:18:05,381 INFO L290 TraceCheckUtils]: 5: Hoare triple {787#true} assume !(0 != test_~tmp___0~3#1); {787#true} is VALID [2022-02-21 04:18:05,381 INFO L290 TraceCheckUtils]: 6: Hoare triple {787#true} test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; {787#true} is VALID [2022-02-21 04:18:05,382 INFO L290 TraceCheckUtils]: 7: Hoare triple {787#true} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; {787#true} is VALID [2022-02-21 04:18:05,382 INFO L290 TraceCheckUtils]: 8: Hoare triple {787#true} assume 0 != test_~tmp___1~0#1; {787#true} is VALID [2022-02-21 04:18:05,383 INFO L290 TraceCheckUtils]: 9: Hoare triple {787#true} assume { :begin_inline_timeShift } true; {787#true} is VALID [2022-02-21 04:18:05,383 INFO L290 TraceCheckUtils]: 10: Hoare triple {787#true} assume !(0 != ~pumpRunning~0); {789#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:05,384 INFO L290 TraceCheckUtils]: 11: Hoare triple {789#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; {789#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:05,384 INFO L290 TraceCheckUtils]: 12: Hoare triple {789#(= ~pumpRunning~0 0)} 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; {789#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:05,385 INFO L290 TraceCheckUtils]: 13: Hoare triple {789#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {788#false} is VALID [2022-02-21 04:18:05,385 INFO L290 TraceCheckUtils]: 14: Hoare triple {788#false} assume { :end_inline_processEnvironment__wrappee__base } true; {788#false} is VALID [2022-02-21 04:18:05,386 INFO L290 TraceCheckUtils]: 15: Hoare triple {788#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {788#false} is VALID [2022-02-21 04:18:05,386 INFO L290 TraceCheckUtils]: 16: Hoare triple {788#false} assume { :end_inline_processEnvironment } true; {788#false} is VALID [2022-02-21 04:18:05,386 INFO L290 TraceCheckUtils]: 17: Hoare triple {788#false} 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~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; {788#false} is VALID [2022-02-21 04:18:05,386 INFO L290 TraceCheckUtils]: 18: Hoare triple {788#false} __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; {788#false} is VALID [2022-02-21 04:18:05,387 INFO L290 TraceCheckUtils]: 19: Hoare triple {788#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3#1); {788#false} is VALID [2022-02-21 04:18:05,387 INFO L290 TraceCheckUtils]: 20: Hoare triple {788#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {788#false} is VALID [2022-02-21 04:18:05,387 INFO L290 TraceCheckUtils]: 21: Hoare triple {788#false} assume { :end_inline_timeShift } true; {788#false} is VALID [2022-02-21 04:18:05,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:05,388 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:05,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618604200] [2022-02-21 04:18:05,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618604200] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:05,388 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:05,388 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:05,389 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109784624] [2022-02-21 04:18:05,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:05,390 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:05,390 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:05,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:05,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:05,391 INFO L87 Difference]: Start difference. First operand 150 states and 199 transitions. cyclomatic complexity: 51 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) [2022-02-21 04:18:05,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:05,662 INFO L93 Difference]: Finished difference Result 206 states and 262 transitions. [2022-02-21 04:18:05,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:05,662 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 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) [2022-02-21 04:18:05,679 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:05,680 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 206 states and 262 transitions. [2022-02-21 04:18:05,686 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 144 [2022-02-21 04:18:05,693 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 206 states to 206 states and 262 transitions. [2022-02-21 04:18:05,693 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 206 [2022-02-21 04:18:05,694 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 206 [2022-02-21 04:18:05,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 206 states and 262 transitions. [2022-02-21 04:18:05,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:05,695 INFO L681 BuchiCegarLoop]: Abstraction has 206 states and 262 transitions. [2022-02-21 04:18:05,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states and 262 transitions. [2022-02-21 04:18:05,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2022-02-21 04:18:05,701 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:05,702 INFO L82 GeneralOperation]: Start isEquivalent. First operand 206 states and 262 transitions. Second operand has 206 states, 206 states have (on average 1.2718446601941749) internal successors, (262), 205 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:05,703 INFO L74 IsIncluded]: Start isIncluded. First operand 206 states and 262 transitions. Second operand has 206 states, 206 states have (on average 1.2718446601941749) internal successors, (262), 205 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:05,703 INFO L87 Difference]: Start difference. First operand 206 states and 262 transitions. Second operand has 206 states, 206 states have (on average 1.2718446601941749) internal successors, (262), 205 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:05,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:05,709 INFO L93 Difference]: Finished difference Result 206 states and 262 transitions. [2022-02-21 04:18:05,709 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 262 transitions. [2022-02-21 04:18:05,710 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:05,710 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:05,710 INFO L74 IsIncluded]: Start isIncluded. First operand has 206 states, 206 states have (on average 1.2718446601941749) internal successors, (262), 205 states have internal predecessors, (262), 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 206 states and 262 transitions. [2022-02-21 04:18:05,711 INFO L87 Difference]: Start difference. First operand has 206 states, 206 states have (on average 1.2718446601941749) internal successors, (262), 205 states have internal predecessors, (262), 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 206 states and 262 transitions. [2022-02-21 04:18:05,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:05,717 INFO L93 Difference]: Finished difference Result 206 states and 262 transitions. [2022-02-21 04:18:05,718 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 262 transitions. [2022-02-21 04:18:05,718 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:05,718 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:05,718 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:05,719 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:05,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 206 states have (on average 1.2718446601941749) internal successors, (262), 205 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:05,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 262 transitions. [2022-02-21 04:18:05,725 INFO L704 BuchiCegarLoop]: Abstraction has 206 states and 262 transitions. [2022-02-21 04:18:05,725 INFO L587 BuchiCegarLoop]: Abstraction has 206 states and 262 transitions. [2022-02-21 04:18:05,726 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:05,726 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 206 states and 262 transitions. [2022-02-21 04:18:05,727 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 144 [2022-02-21 04:18:05,727 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:05,727 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:05,728 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:05,728 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] [2022-02-21 04:18:05,728 INFO L791 eck$LassoCheckResult]: Stem: 1148#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;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1070#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~3#1, main_~tmp~4#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 996#L580 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 997#L573 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1094#L588 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 1132#L535 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 1062#L508 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1063#L919-2 [2022-02-21 04:18:05,729 INFO L793 eck$LassoCheckResult]: Loop: 1063#L919-2 assume !false; 1146#L920 assume test_~splverifierCounter~0#1 < 4; 1145#L921 test_~tmp~9#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 1121#L929 assume !(0 != test_~tmp~9#1); 1109#L929-2 test_~tmp___0~3#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 1110#L939 assume !(0 != test_~tmp___0~3#1); 1012#L939-2 test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 1071#L949 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 1072#L957 assume 0 != test_~tmp___1~0#1; 1044#L957-2 assume { :begin_inline_timeShift } true; 1045#L711 assume !(0 != ~pumpRunning~0); 1076#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; 1077#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; 1078#L743-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1118#L681-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1139#L686-1 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 1128#L871-3 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1129#L871-5 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 1152#L877-1 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; 1125#L747-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1126#L735-2 assume { :end_inline_processEnvironment__wrappee__base } true; 998#L743-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 999#L769-1 assume { :end_inline_processEnvironment } true; 1098#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~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 1153#L673 __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; 1175#L427 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3#1); 1173#L427-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1111#L728 assume { :end_inline_timeShift } true; 1063#L919-2 [2022-02-21 04:18:05,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:05,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:18:05,730 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:05,730 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161910664] [2022-02-21 04:18:05,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:05,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:05,760 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:05,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:05,785 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:05,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:05,786 INFO L85 PathProgramCache]: Analyzing trace with hash -507538369, now seen corresponding path program 1 times [2022-02-21 04:18:05,787 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:05,787 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605669083] [2022-02-21 04:18:05,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:05,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:05,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:05,801 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:05,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:05,810 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:05,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:05,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1758520317, now seen corresponding path program 1 times [2022-02-21 04:18:05,811 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:05,811 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631454229] [2022-02-21 04:18:05,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:05,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:05,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:05,826 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:05,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:05,842 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:09,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:09 BoogieIcfgContainer [2022-02-21 04:18:09,094 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:09,095 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:09,095 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:09,095 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:09,096 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:04" (3/4) ... [2022-02-21 04:18:09,100 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:09,161 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:09,161 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:09,163 INFO L158 Benchmark]: Toolchain (without parser) took 6231.28ms. Allocated memory was 102.8MB in the beginning and 172.0MB in the end (delta: 69.2MB). Free memory was 63.6MB in the beginning and 126.9MB in the end (delta: -63.3MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2022-02-21 04:18:09,163 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 102.8MB. Free memory was 81.1MB in the beginning and 81.0MB in the end (delta: 90.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:09,164 INFO L158 Benchmark]: CACSL2BoogieTranslator took 586.71ms. Allocated memory is still 102.8MB. Free memory was 63.4MB in the beginning and 66.6MB in the end (delta: -3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:18:09,164 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.38ms. Allocated memory is still 102.8MB. Free memory was 66.6MB in the beginning and 62.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:09,164 INFO L158 Benchmark]: Boogie Preprocessor took 66.55ms. Allocated memory is still 102.8MB. Free memory was 62.4MB in the beginning and 59.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:09,165 INFO L158 Benchmark]: RCFGBuilder took 721.19ms. Allocated memory was 102.8MB in the beginning and 136.3MB in the end (delta: 33.6MB). Free memory was 59.9MB in the beginning and 107.6MB in the end (delta: -47.7MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2022-02-21 04:18:09,165 INFO L158 Benchmark]: BuchiAutomizer took 4702.15ms. Allocated memory was 136.3MB in the beginning and 172.0MB in the end (delta: 35.7MB). Free memory was 107.6MB in the beginning and 128.9MB in the end (delta: -21.3MB). Peak memory consumption was 81.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:09,165 INFO L158 Benchmark]: Witness Printer took 66.83ms. Allocated memory is still 172.0MB. Free memory was 128.9MB in the beginning and 126.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:09,167 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 102.8MB. Free memory was 81.1MB in the beginning and 81.0MB in the end (delta: 90.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 586.71ms. Allocated memory is still 102.8MB. Free memory was 63.4MB in the beginning and 66.6MB in the end (delta: -3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.38ms. Allocated memory is still 102.8MB. Free memory was 66.6MB in the beginning and 62.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.55ms. Allocated memory is still 102.8MB. Free memory was 62.4MB in the beginning and 59.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 721.19ms. Allocated memory was 102.8MB in the beginning and 136.3MB in the end (delta: 33.6MB). Free memory was 59.9MB in the beginning and 107.6MB in the end (delta: -47.7MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 4702.15ms. Allocated memory was 136.3MB in the beginning and 172.0MB in the end (delta: 35.7MB). Free memory was 107.6MB in the beginning and 128.9MB in the end (delta: -21.3MB). Peak memory consumption was 81.2MB. Max. memory is 16.1GB. * Witness Printer took 66.83ms. Allocated memory is still 172.0MB. Free memory was 128.9MB in the beginning and 126.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 206 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 206 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 336 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 336 mSDsluCounter, 503 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 96 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 407 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 - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 919]: 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@54304dbd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56fe2d5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4fe83554=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@477bdfbb=29, tmp___0=0, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d0c540e=0, NULL=1, tmp___0=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@366559b3=0, methaneLevelCritical=0, retValue_acc=0, tmp=0, retValue_acc=1, retValue_acc=0, tmp=1, \result=1, tmp=1, \result=1, retValue_acc=1, tmp___2=0, tmp=1, cleanupTimeShifts=4, \result=0, head=0, \result=1, tmp___1=29, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20408993=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@577d9155=0, tmp___0=0, \result=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12920514=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6811b306=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 919]: 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; [L445] int cleanupTimeShifts = 4; [L598] int waterLevel = 1; [L599] int methaneLevelCritical = 0; [L704] int pumpRunning = 0; [L705] int systemActive = 1; [L526] int retValue_acc ; [L527] int tmp ; [L531] FCALL select_helpers() [L532] FCALL select_features() [L533] CALL, EXPR valid_product() [L584] int retValue_acc ; [L587] retValue_acc = 1 [L588] return (retValue_acc); [L533] RET, EXPR valid_product() [L533] tmp = valid_product() [L535] COND TRUE \read(tmp) [L537] FCALL setup() [L538] CALL runTest() [L517] CALL test() [L910] int splverifierCounter ; [L911] int tmp ; [L912] int tmp___0 ; [L913] int tmp___1 ; [L914] int tmp___2 ; [L917] splverifierCounter = 0 Loop: [L919] COND TRUE 1 [L921] COND TRUE splverifierCounter < 4 [L927] tmp = __VERIFIER_nondet_int() [L929] COND FALSE !(\read(tmp)) [L937] tmp___0 = __VERIFIER_nondet_int() [L939] COND FALSE !(\read(tmp___0)) [L947] tmp___2 = __VERIFIER_nondet_int() [L949] COND FALSE !(\read(tmp___2)) [L955] tmp___1 = __VERIFIER_nondet_int() [L957] COND TRUE \read(tmp___1) [L964] 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() [L863] int retValue_acc ; [L864] int tmp ; [L865] int tmp___0 ; [L869] CALL, EXPR isHighWaterSensorDry() [L678] int retValue_acc ; [L681] COND TRUE waterLevel < 2 [L682] retValue_acc = 1 [L683] return (retValue_acc); [L869] RET, EXPR isHighWaterSensorDry() [L869] tmp = isHighWaterSensorDry() [L871] COND TRUE \read(tmp) [L872] tmp___0 = 0 [L876] retValue_acc = tmp___0 [L877] 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() [L669] int retValue_acc ; [L672] retValue_acc = waterLevel [L673] return (retValue_acc); [L425] RET, EXPR getWaterLevel() [L425] tmp = getWaterLevel() [L427] COND FALSE !(tmp == 0) [L726] RET __utac_acc__Specification4_spec__1() [L964] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:09,223 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)