./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product61.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_spec1_product61.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 f250833677b07ed1377ed852c7268af3b652ab26de7f7fe1fca27ae75baf167f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:15:43,460 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:15:43,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:15:43,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:15:43,510 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:15:43,527 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:15:43,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:15:43,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:15:43,556 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:15:43,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:15:43,563 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:15:43,564 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:15:43,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:15:43,567 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:15:43,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:15:43,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:15:43,572 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:15:43,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:15:43,574 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:15:43,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:15:43,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:15:43,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:15:43,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:15:43,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:15:43,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:15:43,610 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:15:43,610 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:15:43,612 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:15:43,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:15:43,614 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:15:43,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:15:43,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:15:43,617 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:15:43,618 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:15:43,619 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:15:43,619 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:15:43,620 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:15:43,620 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:15:43,621 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:15:43,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:15:43,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:15:43,623 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:15:43,693 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:15:43,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:15:43,694 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:15:43,694 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:15:43,696 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:15:43,696 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:15:43,696 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:15:43,696 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:15:43,697 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:15:43,697 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:15:43,698 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:15:43,698 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:15:43,698 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:15:43,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:15:43,698 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:15:43,699 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:15:43,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:15:43,699 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:15:43,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:15:43,699 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:15:43,699 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:15:43,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:15:43,700 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:15:43,700 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:15:43,700 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:15:43,700 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:15:43,700 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:15:43,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:15:43,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:15:43,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:15:43,701 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:15:43,702 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:15:43,702 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f250833677b07ed1377ed852c7268af3b652ab26de7f7fe1fca27ae75baf167f [2022-02-21 04:15:44,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:15:44,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:15:44,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:15:44,139 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:15:44,139 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:15:44,140 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c [2022-02-21 04:15:44,189 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee22549ce/059f80213a9d477886a285f535b5b72d/FLAG699a1b75d [2022-02-21 04:15:44,638 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:15:44,639 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c [2022-02-21 04:15:44,650 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee22549ce/059f80213a9d477886a285f535b5b72d/FLAG699a1b75d [2022-02-21 04:15:44,664 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee22549ce/059f80213a9d477886a285f535b5b72d [2022-02-21 04:15:44,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:15:44,668 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:15:44,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:44,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:15:44,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:15:44,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:44" (1/1) ... [2022-02-21 04:15:44,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c3daca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:44, skipping insertion in model container [2022-02-21 04:15:44,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:44" (1/1) ... [2022-02-21 04:15:44,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:15:44,715 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:15:44,861 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_spec1_product61.cil.c[3777,3790] [2022-02-21 04:15:44,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:44,926 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:15:44,941 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_spec1_product61.cil.c[3777,3790] [2022-02-21 04:15:44,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:44,988 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:15:44,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:44 WrapperNode [2022-02-21 04:15:44,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:44,989 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:44,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:15:44,989 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:15:44,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:44" (1/1) ... [2022-02-21 04:15:45,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:44" (1/1) ... [2022-02-21 04:15:45,059 INFO L137 Inliner]: procedures = 57, calls = 160, calls flagged for inlining = 57, calls inlined = 173, statements flattened = 1253 [2022-02-21 04:15:45,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:45,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:15:45,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:15:45,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:15:45,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:44" (1/1) ... [2022-02-21 04:15:45,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:44" (1/1) ... [2022-02-21 04:15:45,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:44" (1/1) ... [2022-02-21 04:15:45,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:44" (1/1) ... [2022-02-21 04:15:45,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:44" (1/1) ... [2022-02-21 04:15:45,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:44" (1/1) ... [2022-02-21 04:15:45,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:44" (1/1) ... [2022-02-21 04:15:45,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:15:45,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:15:45,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:15:45,096 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:15:45,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:44" (1/1) ... [2022-02-21 04:15:45,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:15:45,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:15:45,152 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 04:15:45,158 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 04:15:45,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:15:45,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:15:45,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:15:45,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:15:45,254 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:15:45,255 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:15:45,892 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:15:45,905 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:15:45,906 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:15:45,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:45 BoogieIcfgContainer [2022-02-21 04:15:45,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:15:45,910 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:15:45,910 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:15:45,912 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:15:45,913 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:45,913 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:15:44" (1/3) ... [2022-02-21 04:15:45,914 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7fd256e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:45, skipping insertion in model container [2022-02-21 04:15:45,914 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:45,914 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:44" (2/3) ... [2022-02-21 04:15:45,914 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7fd256e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:45, skipping insertion in model container [2022-02-21 04:15:45,914 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:45,915 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:45" (3/3) ... [2022-02-21 04:15:45,916 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product61.cil.c [2022-02-21 04:15:45,947 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:15:45,947 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:15:45,947 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:15:45,947 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:15:45,947 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:15:45,947 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:15:45,948 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:15:45,948 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:15:45,975 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 318 states, 317 states have (on average 1.3533123028391167) internal successors, (429), 317 states have internal predecessors, (429), 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 04:15:46,042 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 208 [2022-02-21 04:15:46,042 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:46,042 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:46,047 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:46,047 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:46,048 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:15:46,051 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 318 states, 317 states have (on average 1.3533123028391167) internal successors, (429), 317 states have internal predecessors, (429), 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 04:15:46,074 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 208 [2022-02-21 04:15:46,078 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:46,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:46,080 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:46,080 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:46,088 INFO L791 eck$LassoCheckResult]: Stem: 299#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 201#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~6#1, main_~tmp~1#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 230#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 306#L68true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 34#L83true main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 89#L320true assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 67#L296true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#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#L586-2true [2022-02-21 04:15:46,089 INFO L793 eck$LassoCheckResult]: Loop: 148#L586-2true assume !false; 144#L587true assume test_~splverifierCounter~0#1 < 4; 98#L588true test_~tmp~8#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 210#L596true assume !(0 != test_~tmp~8#1); 132#L596-2true test_~tmp___0~3#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 174#L606true assume !(0 != test_~tmp___0~3#1); 265#L606-2true test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 285#L616true assume 0 != test_~tmp___2~0#1; 250#L622-2true assume { :begin_inline_timeShift } true; 268#L343true assume !(0 != ~pumpRunning~0); 70#L343-2true assume !(0 != ~systemActive~0); 220#L350-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_#t~ret11#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 156#L139-5true __utac_acc__Specification1_spec__1_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret10#1;havoc __utac_acc__Specification1_spec__1_#t~ret10#1; 30#L217true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 264#L217-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 25#L360true assume { :end_inline_timeShift } true; 148#L586-2true [2022-02-21 04:15:46,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:46,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:15:46,103 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:46,103 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746603345] [2022-02-21 04:15:46,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:46,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:46,221 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:46,263 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:46,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:46,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1828258692, now seen corresponding path program 1 times [2022-02-21 04:15:46,266 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:46,267 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186649994] [2022-02-21 04:15:46,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:46,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:46,286 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:46,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:46,291 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:46,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:46,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1111289528, now seen corresponding path program 1 times [2022-02-21 04:15:46,292 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:46,292 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263267961] [2022-02-21 04:15:46,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:46,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:46,418 INFO L290 TraceCheckUtils]: 0: Hoare triple {326#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; {328#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:46,419 INFO L290 TraceCheckUtils]: 1: Hoare triple {328#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~6#1, main_~tmp~1#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; {328#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:46,419 INFO L290 TraceCheckUtils]: 2: Hoare triple {328#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {328#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:46,420 INFO L290 TraceCheckUtils]: 3: Hoare triple {328#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; {329#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:15:46,420 INFO L290 TraceCheckUtils]: 4: Hoare triple {329#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; {330#(= |ULTIMATE.start_main_~tmp~1#1| ~systemActive~0)} is VALID [2022-02-21 04:15:46,420 INFO L290 TraceCheckUtils]: 5: Hoare triple {330#(= |ULTIMATE.start_main_~tmp~1#1| ~systemActive~0)} assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; {331#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:46,421 INFO L290 TraceCheckUtils]: 6: Hoare triple {331#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {331#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:46,421 INFO L290 TraceCheckUtils]: 7: Hoare triple {331#(not (= 0 ~systemActive~0))} assume !false; {331#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:46,422 INFO L290 TraceCheckUtils]: 8: Hoare triple {331#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {331#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:46,422 INFO L290 TraceCheckUtils]: 9: Hoare triple {331#(not (= 0 ~systemActive~0))} test_~tmp~8#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; {331#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:46,423 INFO L290 TraceCheckUtils]: 10: Hoare triple {331#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~8#1); {331#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:46,423 INFO L290 TraceCheckUtils]: 11: Hoare triple {331#(not (= 0 ~systemActive~0))} test_~tmp___0~3#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; {331#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:46,424 INFO L290 TraceCheckUtils]: 12: Hoare triple {331#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~3#1); {331#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:46,424 INFO L290 TraceCheckUtils]: 13: Hoare triple {331#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; {331#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:46,425 INFO L290 TraceCheckUtils]: 14: Hoare triple {331#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {331#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:46,425 INFO L290 TraceCheckUtils]: 15: Hoare triple {331#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {331#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:46,426 INFO L290 TraceCheckUtils]: 16: Hoare triple {331#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {331#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:46,426 INFO L290 TraceCheckUtils]: 17: Hoare triple {331#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {327#false} is VALID [2022-02-21 04:15:46,426 INFO L290 TraceCheckUtils]: 18: Hoare triple {327#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_#t~ret11#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; {327#false} is VALID [2022-02-21 04:15:46,427 INFO L290 TraceCheckUtils]: 19: Hoare triple {327#false} __utac_acc__Specification1_spec__1_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret10#1;havoc __utac_acc__Specification1_spec__1_#t~ret10#1; {327#false} is VALID [2022-02-21 04:15:46,427 INFO L290 TraceCheckUtils]: 20: Hoare triple {327#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); {327#false} is VALID [2022-02-21 04:15:46,427 INFO L290 TraceCheckUtils]: 21: Hoare triple {327#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {327#false} is VALID [2022-02-21 04:15:46,428 INFO L290 TraceCheckUtils]: 22: Hoare triple {327#false} assume { :end_inline_timeShift } true; {327#false} is VALID [2022-02-21 04:15:46,429 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 04:15:46,429 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:46,430 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263267961] [2022-02-21 04:15:46,430 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263267961] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:46,430 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:46,431 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:15:46,431 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999788281] [2022-02-21 04:15:46,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:46,539 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:46,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:15:46,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:15:46,559 INFO L87 Difference]: Start difference. First operand has 318 states, 317 states have (on average 1.3533123028391167) internal successors, (429), 317 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:47,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:47,280 INFO L93 Difference]: Finished difference Result 315 states and 415 transitions. [2022-02-21 04:15:47,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:15:47,281 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:47,315 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:47,319 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 315 states and 415 transitions. [2022-02-21 04:15:47,328 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 204 [2022-02-21 04:15:47,353 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 315 states to 305 states and 405 transitions. [2022-02-21 04:15:47,354 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 305 [2022-02-21 04:15:47,355 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 305 [2022-02-21 04:15:47,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 305 states and 405 transitions. [2022-02-21 04:15:47,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:47,368 INFO L681 BuchiCegarLoop]: Abstraction has 305 states and 405 transitions. [2022-02-21 04:15:47,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states and 405 transitions. [2022-02-21 04:15:47,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2022-02-21 04:15:47,418 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:47,420 INFO L82 GeneralOperation]: Start isEquivalent. First operand 305 states and 405 transitions. Second operand has 305 states, 305 states have (on average 1.3278688524590163) internal successors, (405), 304 states have internal predecessors, (405), 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 04:15:47,420 INFO L74 IsIncluded]: Start isIncluded. First operand 305 states and 405 transitions. Second operand has 305 states, 305 states have (on average 1.3278688524590163) internal successors, (405), 304 states have internal predecessors, (405), 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 04:15:47,422 INFO L87 Difference]: Start difference. First operand 305 states and 405 transitions. Second operand has 305 states, 305 states have (on average 1.3278688524590163) internal successors, (405), 304 states have internal predecessors, (405), 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 04:15:47,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:47,437 INFO L93 Difference]: Finished difference Result 305 states and 405 transitions. [2022-02-21 04:15:47,438 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 405 transitions. [2022-02-21 04:15:47,440 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:47,440 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:47,441 INFO L74 IsIncluded]: Start isIncluded. First operand has 305 states, 305 states have (on average 1.3278688524590163) internal successors, (405), 304 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 305 states and 405 transitions. [2022-02-21 04:15:47,441 INFO L87 Difference]: Start difference. First operand has 305 states, 305 states have (on average 1.3278688524590163) internal successors, (405), 304 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 305 states and 405 transitions. [2022-02-21 04:15:47,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:47,463 INFO L93 Difference]: Finished difference Result 305 states and 405 transitions. [2022-02-21 04:15:47,463 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 405 transitions. [2022-02-21 04:15:47,465 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:47,465 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:47,465 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:47,465 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:47,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 305 states have (on average 1.3278688524590163) internal successors, (405), 304 states have internal predecessors, (405), 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 04:15:47,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 405 transitions. [2022-02-21 04:15:47,488 INFO L704 BuchiCegarLoop]: Abstraction has 305 states and 405 transitions. [2022-02-21 04:15:47,488 INFO L587 BuchiCegarLoop]: Abstraction has 305 states and 405 transitions. [2022-02-21 04:15:47,488 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:15:47,488 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 305 states and 405 transitions. [2022-02-21 04:15:47,490 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 204 [2022-02-21 04:15:47,490 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:47,490 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:47,490 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:47,491 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 04:15:47,491 INFO L791 eck$LassoCheckResult]: Stem: 955#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 919#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~6#1, main_~tmp~1#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 920#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 936#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 717#L83 main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 718#L320 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 770#L296 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 698#L586-2 [2022-02-21 04:15:47,491 INFO L793 eck$LassoCheckResult]: Loop: 698#L586-2 assume !false; 873#L587 assume test_~splverifierCounter~0#1 < 4; 813#L588 test_~tmp~8#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 814#L596 assume !(0 != test_~tmp~8#1); 752#L596-2 test_~tmp___0~3#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 860#L606 assume !(0 != test_~tmp___0~3#1); 900#L606-2 test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 950#L616 assume 0 != test_~tmp___2~0#1; 946#L622-2 assume { :begin_inline_timeShift } true; 947#L343 assume !(0 != ~pumpRunning~0); 761#L343-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 773#L427 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret17#1, isMethaneAlarm_~retValue_acc~7#1;havoc isMethaneAlarm_~retValue_acc~7#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 732#L139 isMethaneAlarm_#t~ret17#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~7#1 := isMethaneAlarm_#t~ret17#1;havoc isMethaneAlarm_#t~ret17#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~7#1; 733#L488 processEnvironment_#t~ret15#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret15#1;havoc processEnvironment_#t~ret15#1; 785#L431 assume 0 != processEnvironment_~tmp~4#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 879#L478 assume { :end_inline_deactivatePump } true; 783#L427-1 assume { :end_inline_processEnvironment } true; 784#L350-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_#t~ret11#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 884#L139-5 __utac_acc__Specification1_spec__1_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret10#1;havoc __utac_acc__Specification1_spec__1_#t~ret10#1; 707#L217 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 708#L217-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 697#L360 assume { :end_inline_timeShift } true; 698#L586-2 [2022-02-21 04:15:47,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:47,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:15:47,492 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:47,492 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580505355] [2022-02-21 04:15:47,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:47,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:47,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:47,518 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:47,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:47,540 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:47,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:47,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1370684173, now seen corresponding path program 1 times [2022-02-21 04:15:47,541 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:47,541 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359187582] [2022-02-21 04:15:47,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:47,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:47,555 INFO L290 TraceCheckUtils]: 0: Hoare triple {1571#true} assume !false; {1571#true} is VALID [2022-02-21 04:15:47,555 INFO L290 TraceCheckUtils]: 1: Hoare triple {1571#true} assume test_~splverifierCounter~0#1 < 4; {1571#true} is VALID [2022-02-21 04:15:47,555 INFO L290 TraceCheckUtils]: 2: Hoare triple {1571#true} test_~tmp~8#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; {1571#true} is VALID [2022-02-21 04:15:47,556 INFO L290 TraceCheckUtils]: 3: Hoare triple {1571#true} assume !(0 != test_~tmp~8#1); {1571#true} is VALID [2022-02-21 04:15:47,556 INFO L290 TraceCheckUtils]: 4: Hoare triple {1571#true} test_~tmp___0~3#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; {1571#true} is VALID [2022-02-21 04:15:47,556 INFO L290 TraceCheckUtils]: 5: Hoare triple {1571#true} assume !(0 != test_~tmp___0~3#1); {1571#true} is VALID [2022-02-21 04:15:47,571 INFO L290 TraceCheckUtils]: 6: Hoare triple {1571#true} test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; {1571#true} is VALID [2022-02-21 04:15:47,571 INFO L290 TraceCheckUtils]: 7: Hoare triple {1571#true} assume 0 != test_~tmp___2~0#1; {1571#true} is VALID [2022-02-21 04:15:47,571 INFO L290 TraceCheckUtils]: 8: Hoare triple {1571#true} assume { :begin_inline_timeShift } true; {1571#true} is VALID [2022-02-21 04:15:47,572 INFO L290 TraceCheckUtils]: 9: Hoare triple {1571#true} assume !(0 != ~pumpRunning~0); {1573#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:47,572 INFO L290 TraceCheckUtils]: 10: Hoare triple {1573#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; {1573#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:47,573 INFO L290 TraceCheckUtils]: 11: Hoare triple {1573#(= ~pumpRunning~0 0)} assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret17#1, isMethaneAlarm_~retValue_acc~7#1;havoc isMethaneAlarm_~retValue_acc~7#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; {1572#false} is VALID [2022-02-21 04:15:47,573 INFO L290 TraceCheckUtils]: 12: Hoare triple {1572#false} isMethaneAlarm_#t~ret17#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~7#1 := isMethaneAlarm_#t~ret17#1;havoc isMethaneAlarm_#t~ret17#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~7#1; {1572#false} is VALID [2022-02-21 04:15:47,573 INFO L290 TraceCheckUtils]: 13: Hoare triple {1572#false} processEnvironment_#t~ret15#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret15#1;havoc processEnvironment_#t~ret15#1; {1572#false} is VALID [2022-02-21 04:15:47,573 INFO L290 TraceCheckUtils]: 14: Hoare triple {1572#false} assume 0 != processEnvironment_~tmp~4#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; {1572#false} is VALID [2022-02-21 04:15:47,573 INFO L290 TraceCheckUtils]: 15: Hoare triple {1572#false} assume { :end_inline_deactivatePump } true; {1572#false} is VALID [2022-02-21 04:15:47,574 INFO L290 TraceCheckUtils]: 16: Hoare triple {1572#false} assume { :end_inline_processEnvironment } true; {1572#false} is VALID [2022-02-21 04:15:47,574 INFO L290 TraceCheckUtils]: 17: Hoare triple {1572#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_#t~ret11#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; {1572#false} is VALID [2022-02-21 04:15:47,574 INFO L290 TraceCheckUtils]: 18: Hoare triple {1572#false} __utac_acc__Specification1_spec__1_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret10#1;havoc __utac_acc__Specification1_spec__1_#t~ret10#1; {1572#false} is VALID [2022-02-21 04:15:47,574 INFO L290 TraceCheckUtils]: 19: Hoare triple {1572#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); {1572#false} is VALID [2022-02-21 04:15:47,574 INFO L290 TraceCheckUtils]: 20: Hoare triple {1572#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {1572#false} is VALID [2022-02-21 04:15:47,575 INFO L290 TraceCheckUtils]: 21: Hoare triple {1572#false} assume { :end_inline_timeShift } true; {1572#false} is VALID [2022-02-21 04:15:47,575 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 04:15:47,575 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:47,575 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359187582] [2022-02-21 04:15:47,575 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359187582] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:47,576 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:47,576 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:15:47,576 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259430671] [2022-02-21 04:15:47,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:47,576 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:47,576 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:47,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:15:47,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:15:47,577 INFO L87 Difference]: Start difference. First operand 305 states and 405 transitions. cyclomatic complexity: 102 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 04:15:47,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:47,971 INFO L93 Difference]: Finished difference Result 312 states and 392 transitions. [2022-02-21 04:15:47,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:15:47,972 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 04:15:47,986 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 04:15:47,986 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 312 states and 392 transitions. [2022-02-21 04:15:47,993 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 214 [2022-02-21 04:15:48,013 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 312 states to 312 states and 392 transitions. [2022-02-21 04:15:48,013 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 312 [2022-02-21 04:15:48,014 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 312 [2022-02-21 04:15:48,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 312 states and 392 transitions. [2022-02-21 04:15:48,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:48,015 INFO L681 BuchiCegarLoop]: Abstraction has 312 states and 392 transitions. [2022-02-21 04:15:48,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states and 392 transitions. [2022-02-21 04:15:48,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2022-02-21 04:15:48,052 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:48,052 INFO L82 GeneralOperation]: Start isEquivalent. First operand 312 states and 392 transitions. Second operand has 312 states, 312 states have (on average 1.2564102564102564) internal successors, (392), 311 states have internal predecessors, (392), 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 04:15:48,053 INFO L74 IsIncluded]: Start isIncluded. First operand 312 states and 392 transitions. Second operand has 312 states, 312 states have (on average 1.2564102564102564) internal successors, (392), 311 states have internal predecessors, (392), 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 04:15:48,054 INFO L87 Difference]: Start difference. First operand 312 states and 392 transitions. Second operand has 312 states, 312 states have (on average 1.2564102564102564) internal successors, (392), 311 states have internal predecessors, (392), 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 04:15:48,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:48,059 INFO L93 Difference]: Finished difference Result 312 states and 392 transitions. [2022-02-21 04:15:48,059 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 392 transitions. [2022-02-21 04:15:48,061 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:48,061 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:48,061 INFO L74 IsIncluded]: Start isIncluded. First operand has 312 states, 312 states have (on average 1.2564102564102564) internal successors, (392), 311 states have internal predecessors, (392), 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 312 states and 392 transitions. [2022-02-21 04:15:48,075 INFO L87 Difference]: Start difference. First operand has 312 states, 312 states have (on average 1.2564102564102564) internal successors, (392), 311 states have internal predecessors, (392), 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 312 states and 392 transitions. [2022-02-21 04:15:48,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:48,082 INFO L93 Difference]: Finished difference Result 312 states and 392 transitions. [2022-02-21 04:15:48,082 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 392 transitions. [2022-02-21 04:15:48,083 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:48,083 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:48,083 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:48,083 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:48,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 312 states have (on average 1.2564102564102564) internal successors, (392), 311 states have internal predecessors, (392), 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 04:15:48,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 392 transitions. [2022-02-21 04:15:48,090 INFO L704 BuchiCegarLoop]: Abstraction has 312 states and 392 transitions. [2022-02-21 04:15:48,090 INFO L587 BuchiCegarLoop]: Abstraction has 312 states and 392 transitions. [2022-02-21 04:15:48,090 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:15:48,090 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 312 states and 392 transitions. [2022-02-21 04:15:48,104 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 214 [2022-02-21 04:15:48,104 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:48,104 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:48,105 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:48,105 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:48,105 INFO L791 eck$LassoCheckResult]: Stem: 2140#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 2100#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~6#1, main_~tmp~1#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 2101#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2118#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1938#L83 main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 1939#L320 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 1980#L296 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1981#L586-2 [2022-02-21 04:15:48,106 INFO L793 eck$LassoCheckResult]: Loop: 1981#L586-2 assume !false; 2063#L587 assume test_~splverifierCounter~0#1 < 4; 2017#L588 test_~tmp~8#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 2018#L596 assume !(0 != test_~tmp~8#1); 1968#L596-2 test_~tmp___0~3#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 2048#L606 assume !(0 != test_~tmp___0~3#1); 2085#L606-2 test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 2132#L616 assume 0 != test_~tmp___2~0#1; 2127#L622-2 assume { :begin_inline_timeShift } true; 2128#L343 assume !(0 != ~pumpRunning~0); 1984#L343-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 1985#L427 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret14#1, processEnvironment__wrappee__methaneQuery_~tmp~3#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~3#1; 2021#L401-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 2022#L375-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret26#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; 2076#L179-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; 2019#L184-3 isHighWaterLevel_#t~ret26#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret26#1;havoc isHighWaterLevel_#t~ret26#1; 2020#L546-9 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2138#L546-11 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 1961#L552-3 processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; 1962#L379-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1978#L367-6 assume { :end_inline_processEnvironment__wrappee__base } true; 2075#L375-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2184#L401-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2073#L427-1 assume { :end_inline_processEnvironment } true; 2180#L350-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_#t~ret11#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 2178#L139-5 __utac_acc__Specification1_spec__1_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret10#1;havoc __utac_acc__Specification1_spec__1_#t~ret10#1; 2175#L217 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 2170#L217-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 2168#L360 assume { :end_inline_timeShift } true; 1981#L586-2 [2022-02-21 04:15:48,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:48,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:15:48,106 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:48,106 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472938523] [2022-02-21 04:15:48,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:48,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:48,115 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:48,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:48,134 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:48,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:48,134 INFO L85 PathProgramCache]: Analyzing trace with hash -2054199498, now seen corresponding path program 1 times [2022-02-21 04:15:48,135 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:48,135 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939465501] [2022-02-21 04:15:48,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:48,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:48,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:48,143 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:48,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:48,149 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:48,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:48,150 INFO L85 PathProgramCache]: Analyzing trace with hash 2115033074, now seen corresponding path program 1 times [2022-02-21 04:15:48,150 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:48,150 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099461631] [2022-02-21 04:15:48,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:48,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:48,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:48,161 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:48,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:48,176 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:50,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:15:50 BoogieIcfgContainer [2022-02-21 04:15:50,974 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:15:50,975 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:15:50,975 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:15:50,975 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:15:50,975 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:45" (3/4) ... [2022-02-21 04:15:50,978 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:15:51,030 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:15:51,031 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:15:51,032 INFO L158 Benchmark]: Toolchain (without parser) took 6364.35ms. Allocated memory was 100.7MB in the beginning and 203.4MB in the end (delta: 102.8MB). Free memory was 68.8MB in the beginning and 74.2MB in the end (delta: -5.3MB). Peak memory consumption was 96.6MB. Max. memory is 16.1GB. [2022-02-21 04:15:51,033 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 100.7MB. Free memory is still 57.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:15:51,033 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.63ms. Allocated memory is still 100.7MB. Free memory was 68.6MB in the beginning and 64.3MB in the end (delta: 4.3MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2022-02-21 04:15:51,033 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.29ms. Allocated memory is still 100.7MB. Free memory was 64.3MB in the beginning and 57.7MB in the end (delta: 6.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:15:51,034 INFO L158 Benchmark]: Boogie Preprocessor took 35.26ms. Allocated memory is still 100.7MB. Free memory was 57.7MB in the beginning and 53.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:51,034 INFO L158 Benchmark]: RCFGBuilder took 813.34ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 53.5MB in the beginning and 93.2MB in the end (delta: -39.7MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2022-02-21 04:15:51,034 INFO L158 Benchmark]: BuchiAutomizer took 5064.44ms. Allocated memory was 121.6MB in the beginning and 203.4MB in the end (delta: 81.8MB). Free memory was 93.2MB in the beginning and 77.3MB in the end (delta: 15.9MB). Peak memory consumption was 98.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:51,034 INFO L158 Benchmark]: Witness Printer took 56.89ms. Allocated memory is still 203.4MB. Free memory was 77.3MB in the beginning and 74.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:51,036 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 0.17ms. Allocated memory is still 100.7MB. Free memory is still 57.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 319.63ms. Allocated memory is still 100.7MB. Free memory was 68.6MB in the beginning and 64.3MB in the end (delta: 4.3MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.29ms. Allocated memory is still 100.7MB. Free memory was 64.3MB in the beginning and 57.7MB in the end (delta: 6.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.26ms. Allocated memory is still 100.7MB. Free memory was 57.7MB in the beginning and 53.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 813.34ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 53.5MB in the beginning and 93.2MB in the end (delta: -39.7MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 5064.44ms. Allocated memory was 121.6MB in the beginning and 203.4MB in the end (delta: 81.8MB). Free memory was 93.2MB in the beginning and 77.3MB in the end (delta: 15.9MB). Peak memory consumption was 98.2MB. Max. memory is 16.1GB. * Witness Printer took 56.89ms. Allocated memory is still 203.4MB. Free memory was 77.3MB in the beginning and 74.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 312 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.3s. Construction of modules took 0.0s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 312 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1457 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1457 mSDsluCounter, 830 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 129 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50 IncrementalHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 701 mSDtfsCounter, 50 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 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: 586]: 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@438eb2cc=29, tmp=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17a0a21b=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2db8bb87=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28ae169b=0, methaneLevelCritical=0, \result=0, retValue_acc=1, retValue_acc=1, \result=1, \result=1, retValue_acc=0, retValue_acc=0, tmp=1, tmp___2=29, cleanupTimeShifts=4, \result=0, tmp=1, tmp=0, head=0, tmp___1=0, NULL=0, tmp=0, waterLevel=1, systemActive=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35a8a051=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ccb3297=0, tmp___0=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7bc92233=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@644ed61e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1631ab4=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@373da5b0=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@337a091c=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 586]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L96] int waterLevel = 1; [L97] int methaneLevelCritical = 0; [L235] int cleanupTimeShifts = 4; [L336] int pumpRunning = 0; [L337] int systemActive = 1; [L810] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L311] int retValue_acc ; [L312] int tmp ; [L316] FCALL select_helpers() [L317] FCALL select_features() [L318] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L318] RET, EXPR valid_product() [L318] tmp = valid_product() [L320] COND TRUE \read(tmp) [L322] FCALL setup() [L323] CALL runTest() [L305] CALL test() [L577] int splverifierCounter ; [L578] int tmp ; [L579] int tmp___0 ; [L580] int tmp___1 ; [L581] int tmp___2 ; [L584] splverifierCounter = 0 Loop: [L586] COND TRUE 1 [L588] COND TRUE splverifierCounter < 4 [L594] tmp = __VERIFIER_nondet_int() [L596] COND FALSE !(\read(tmp)) [L604] tmp___0 = __VERIFIER_nondet_int() [L606] COND FALSE !(\read(tmp___0)) [L614] tmp___2 = __VERIFIER_nondet_int() [L616] COND TRUE \read(tmp___2) [L629] CALL timeShift() [L343] COND FALSE !(\read(pumpRunning)) [L350] COND TRUE \read(systemActive) [L352] CALL processEnvironment() [L424] int tmp ; [L427] COND FALSE !(\read(pumpRunning)) [L442] CALL processEnvironment__wrappee__methaneQuery() [L398] int tmp ; [L401] COND FALSE !(\read(pumpRunning)) [L416] CALL processEnvironment__wrappee__highWaterSensor() [L372] int tmp ; [L375] COND TRUE ! pumpRunning [L377] CALL, EXPR isHighWaterLevel() [L538] int retValue_acc ; [L539] int tmp ; [L540] int tmp___0 ; [L544] CALL, EXPR isHighWaterSensorDry() [L176] int retValue_acc ; [L179] COND TRUE waterLevel < 2 [L180] retValue_acc = 1 [L181] return (retValue_acc); [L544] RET, EXPR isHighWaterSensorDry() [L544] tmp = isHighWaterSensorDry() [L546] COND TRUE \read(tmp) [L547] tmp___0 = 0 [L551] retValue_acc = tmp___0 [L552] return (retValue_acc); [L377] RET, EXPR isHighWaterLevel() [L377] tmp = isHighWaterLevel() [L379] COND FALSE !(\read(tmp)) [L385] FCALL processEnvironment__wrappee__base() [L416] RET processEnvironment__wrappee__highWaterSensor() [L442] RET processEnvironment__wrappee__methaneQuery() [L352] RET processEnvironment() [L358] CALL __utac_acc__Specification1_spec__1() [L210] int tmp ; [L211] int tmp___0 ; [L215] CALL, EXPR isMethaneLevelCritical() [L135] int retValue_acc ; [L138] retValue_acc = methaneLevelCritical [L139] return (retValue_acc); [L215] RET, EXPR isMethaneLevelCritical() [L215] tmp = isMethaneLevelCritical() [L217] COND FALSE !(\read(tmp)) [L358] RET __utac_acc__Specification1_spec__1() [L629] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:15:51,088 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)