./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product39.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_spec2_product39.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 faabc130c8aadbb7390121b68f1c41e161e50da9443e348cb1c3db1c45e9e0cb --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:16:14,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:16:14,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:16:14,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:16:14,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:16:14,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:16:14,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:16:14,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:16:14,464 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:16:14,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:16:14,469 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:16:14,471 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:16:14,471 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:16:14,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:16:14,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:16:14,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:16:14,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:16:14,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:16:14,483 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:16:14,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:16:14,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:16:14,490 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:16:14,490 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:16:14,491 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:16:14,493 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:16:14,493 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:16:14,494 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:16:14,494 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:16:14,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:16:14,496 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:16:14,496 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:16:14,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:16:14,497 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:16:14,498 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:16:14,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:16:14,499 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:16:14,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:16:14,500 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:16:14,500 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:16:14,501 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:16:14,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:16:14,502 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:16:14,520 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:16:14,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:16:14,521 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:16:14,521 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:16:14,522 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:16:14,523 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:16:14,523 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:16:14,523 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:16:14,523 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:16:14,524 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:16:14,524 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:16:14,524 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:16:14,524 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:16:14,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:16:14,525 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:16:14,525 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:16:14,525 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:16:14,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:16:14,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:16:14,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:16:14,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:16:14,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:16:14,527 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:16:14,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:16:14,527 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:16:14,528 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:16:14,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:16:14,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:16:14,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:16:14,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:16:14,529 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:16:14,530 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:16:14,530 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> faabc130c8aadbb7390121b68f1c41e161e50da9443e348cb1c3db1c45e9e0cb [2022-02-21 04:16:14,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:16:14,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:16:14,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:16:14,778 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:16:14,778 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:16:14,780 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c [2022-02-21 04:16:14,853 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1f513f4a/1da0d6a86830468480c74e6e686d1cba/FLAG95ba07473 [2022-02-21 04:16:15,273 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:16:15,273 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c [2022-02-21 04:16:15,285 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1f513f4a/1da0d6a86830468480c74e6e686d1cba/FLAG95ba07473 [2022-02-21 04:16:15,305 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1f513f4a/1da0d6a86830468480c74e6e686d1cba [2022-02-21 04:16:15,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:16:15,308 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:16:15,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:15,310 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:16:15,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:16:15,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:15" (1/1) ... [2022-02-21 04:16:15,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e804465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:15, skipping insertion in model container [2022-02-21 04:16:15,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:15" (1/1) ... [2022-02-21 04:16:15,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:16:15,358 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:16:15,590 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_spec2_product39.cil.c[5087,5100] [2022-02-21 04:16:15,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:15,713 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:16:15,753 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_spec2_product39.cil.c[5087,5100] [2022-02-21 04:16:15,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:15,805 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:16:15,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:15 WrapperNode [2022-02-21 04:16:15,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:15,807 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:15,807 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:16:15,807 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:16:15,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:15" (1/1) ... [2022-02-21 04:16:15,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:15" (1/1) ... [2022-02-21 04:16:15,898 INFO L137 Inliner]: procedures = 55, calls = 156, calls flagged for inlining = 53, calls inlined = 80, statements flattened = 604 [2022-02-21 04:16:15,899 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:15,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:16:15,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:16:15,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:16:15,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:15" (1/1) ... [2022-02-21 04:16:15,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:15" (1/1) ... [2022-02-21 04:16:15,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:15" (1/1) ... [2022-02-21 04:16:15,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:15" (1/1) ... [2022-02-21 04:16:15,944 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:15" (1/1) ... [2022-02-21 04:16:15,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:15" (1/1) ... [2022-02-21 04:16:15,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:15" (1/1) ... [2022-02-21 04:16:15,964 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:16:15,972 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:16:15,972 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:16:15,972 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:16:15,973 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:15" (1/1) ... [2022-02-21 04:16:15,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:16:15,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:16:16,005 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:16:16,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:16:16,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:16:16,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:16:16,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:16:16,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:16:16,120 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:16:16,122 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:16:16,591 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:16:16,599 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:16:16,602 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:16:16,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:16 BoogieIcfgContainer [2022-02-21 04:16:16,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:16:16,608 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:16:16,608 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:16:16,611 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:16:16,613 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:16,613 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:16:15" (1/3) ... [2022-02-21 04:16:16,614 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6db456db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:16, skipping insertion in model container [2022-02-21 04:16:16,614 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:16,614 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:15" (2/3) ... [2022-02-21 04:16:16,615 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6db456db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:16, skipping insertion in model container [2022-02-21 04:16:16,615 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:16,615 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:16" (3/3) ... [2022-02-21 04:16:16,616 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product39.cil.c [2022-02-21 04:16:16,654 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:16:16,654 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:16:16,655 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:16:16,655 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:16:16,655 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:16:16,655 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:16:16,655 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:16:16,655 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:16:16,682 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 164 states, 163 states have (on average 1.3803680981595092) internal successors, (225), 163 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:16,736 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2022-02-21 04:16:16,736 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:16,737 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:16,743 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:16,743 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:16,743 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:16:16,745 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 164 states, 163 states have (on average 1.3803680981595092) internal successors, (225), 163 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:16,758 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2022-02-21 04:16:16,759 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:16,759 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:16,760 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:16,760 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:16,764 INFO L791 eck$LassoCheckResult]: Stem: 147#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;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 56#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 62#L590true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 121#L583true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 140#L598true main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 47#L241true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 95#L212true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 160#L263true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 97#L316-2true [2022-02-21 04:16:16,765 INFO L793 eck$LassoCheckResult]: Loop: 97#L316-2true assume !false; 10#L317true assume test_~splverifierCounter~0#1 < 4; 158#L318true test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 45#L326true assume !(0 != test_~tmp~2#1); 24#L326-2true test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 103#L336true assume !(0 != test_~tmp___0~1#1); 105#L336-2true test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 60#L346true assume 0 != test_~tmp___2~0#1; 44#L352-2true assume { :begin_inline_timeShift } true; 146#L382true assume !(0 != ~pumpRunning~0); 27#L382-2true assume !(0 != ~systemActive~0); 86#L389-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret10#1, __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 96#L100-1true __utac_acc__Specification2_spec__2_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret10#1;havoc __utac_acc__Specification2_spec__2_#t~ret10#1; 114#L274true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; 104#L274-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 91#L399true assume { :end_inline_timeShift } true; 97#L316-2true [2022-02-21 04:16:16,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:16,771 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:16:16,779 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:16,779 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166905266] [2022-02-21 04:16:16,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:16,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:16,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:16,892 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:16,974 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:16,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:16,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1457954550, now seen corresponding path program 1 times [2022-02-21 04:16:16,977 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:16,977 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623499891] [2022-02-21 04:16:16,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:16,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:16,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:16,991 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:16,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:17,001 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:17,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:17,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1620241933, now seen corresponding path program 1 times [2022-02-21 04:16:17,005 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:17,005 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209868002] [2022-02-21 04:16:17,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:17,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:17,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:17,204 INFO L290 TraceCheckUtils]: 0: Hoare triple {172#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;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; {174#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:17,205 INFO L290 TraceCheckUtils]: 1: Hoare triple {174#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; {174#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:17,206 INFO L290 TraceCheckUtils]: 2: Hoare triple {174#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {174#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:17,207 INFO L290 TraceCheckUtils]: 3: Hoare triple {174#(= 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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; {175#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:16:17,207 INFO L290 TraceCheckUtils]: 4: Hoare triple {175#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; {176#(= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)} is VALID [2022-02-21 04:16:17,208 INFO L290 TraceCheckUtils]: 5: Hoare triple {176#(= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)} assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:17,209 INFO L290 TraceCheckUtils]: 6: Hoare triple {177#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:17,209 INFO L290 TraceCheckUtils]: 7: Hoare triple {177#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:17,210 INFO L290 TraceCheckUtils]: 8: Hoare triple {177#(not (= 0 ~systemActive~0))} assume !false; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:17,211 INFO L290 TraceCheckUtils]: 9: Hoare triple {177#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:17,213 INFO L290 TraceCheckUtils]: 10: Hoare triple {177#(not (= 0 ~systemActive~0))} test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:17,213 INFO L290 TraceCheckUtils]: 11: Hoare triple {177#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~2#1); {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:17,214 INFO L290 TraceCheckUtils]: 12: Hoare triple {177#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:17,215 INFO L290 TraceCheckUtils]: 13: Hoare triple {177#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:17,215 INFO L290 TraceCheckUtils]: 14: Hoare triple {177#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:17,216 INFO L290 TraceCheckUtils]: 15: Hoare triple {177#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:17,216 INFO L290 TraceCheckUtils]: 16: Hoare triple {177#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:17,217 INFO L290 TraceCheckUtils]: 17: Hoare triple {177#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {177#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:17,218 INFO L290 TraceCheckUtils]: 18: Hoare triple {177#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {173#false} is VALID [2022-02-21 04:16:17,218 INFO L290 TraceCheckUtils]: 19: Hoare triple {173#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret10#1, __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; {173#false} is VALID [2022-02-21 04:16:17,219 INFO L290 TraceCheckUtils]: 20: Hoare triple {173#false} __utac_acc__Specification2_spec__2_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret10#1;havoc __utac_acc__Specification2_spec__2_#t~ret10#1; {173#false} is VALID [2022-02-21 04:16:17,220 INFO L290 TraceCheckUtils]: 21: Hoare triple {173#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; {173#false} is VALID [2022-02-21 04:16:17,220 INFO L290 TraceCheckUtils]: 22: Hoare triple {173#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {173#false} is VALID [2022-02-21 04:16:17,221 INFO L290 TraceCheckUtils]: 23: Hoare triple {173#false} assume { :end_inline_timeShift } true; {173#false} is VALID [2022-02-21 04:16:17,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:17,223 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:17,224 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209868002] [2022-02-21 04:16:17,224 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209868002] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:17,225 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:17,225 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:16:17,226 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702670338] [2022-02-21 04:16:17,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:17,380 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:17,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:16:17,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:16:17,413 INFO L87 Difference]: Start difference. First operand has 164 states, 163 states have (on average 1.3803680981595092) internal successors, (225), 163 states have internal predecessors, (225), 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 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:18,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:18,333 INFO L93 Difference]: Finished difference Result 381 states and 504 transitions. [2022-02-21 04:16:18,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:16:18,334 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:18,368 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:18,374 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 381 states and 504 transitions. [2022-02-21 04:16:18,400 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 245 [2022-02-21 04:16:18,421 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 381 states to 351 states and 474 transitions. [2022-02-21 04:16:18,423 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 351 [2022-02-21 04:16:18,426 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 351 [2022-02-21 04:16:18,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 351 states and 474 transitions. [2022-02-21 04:16:18,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:18,431 INFO L681 BuchiCegarLoop]: Abstraction has 351 states and 474 transitions. [2022-02-21 04:16:18,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states and 474 transitions. [2022-02-21 04:16:18,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 206. [2022-02-21 04:16:18,464 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:18,466 INFO L82 GeneralOperation]: Start isEquivalent. First operand 351 states and 474 transitions. Second operand has 206 states, 206 states have (on average 1.3495145631067962) internal successors, (278), 205 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:18,467 INFO L74 IsIncluded]: Start isIncluded. First operand 351 states and 474 transitions. Second operand has 206 states, 206 states have (on average 1.3495145631067962) internal successors, (278), 205 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:18,469 INFO L87 Difference]: Start difference. First operand 351 states and 474 transitions. Second operand has 206 states, 206 states have (on average 1.3495145631067962) internal successors, (278), 205 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:18,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:18,483 INFO L93 Difference]: Finished difference Result 351 states and 474 transitions. [2022-02-21 04:16:18,483 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 474 transitions. [2022-02-21 04:16:18,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:18,487 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:18,488 INFO L74 IsIncluded]: Start isIncluded. First operand has 206 states, 206 states have (on average 1.3495145631067962) internal successors, (278), 205 states have internal predecessors, (278), 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 351 states and 474 transitions. [2022-02-21 04:16:18,496 INFO L87 Difference]: Start difference. First operand has 206 states, 206 states have (on average 1.3495145631067962) internal successors, (278), 205 states have internal predecessors, (278), 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 351 states and 474 transitions. [2022-02-21 04:16:18,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:18,508 INFO L93 Difference]: Finished difference Result 351 states and 474 transitions. [2022-02-21 04:16:18,508 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 474 transitions. [2022-02-21 04:16:18,511 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:18,511 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:18,511 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:18,511 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:18,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 206 states have (on average 1.3495145631067962) internal successors, (278), 205 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:18,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 278 transitions. [2022-02-21 04:16:18,520 INFO L704 BuchiCegarLoop]: Abstraction has 206 states and 278 transitions. [2022-02-21 04:16:18,520 INFO L587 BuchiCegarLoop]: Abstraction has 206 states and 278 transitions. [2022-02-21 04:16:18,520 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:16:18,520 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 206 states and 278 transitions. [2022-02-21 04:16:18,522 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 144 [2022-02-21 04:16:18,522 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:18,522 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:18,523 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:18,523 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:18,523 INFO L791 eck$LassoCheckResult]: Stem: 714#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;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 650#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 651#L590 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 658#L583 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 699#L598 main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 641#L241 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 642#L212 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 691#L263 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 687#L316-2 [2022-02-21 04:16:18,524 INFO L793 eck$LassoCheckResult]: Loop: 687#L316-2 assume !false; 575#L317 assume test_~splverifierCounter~0#1 < 4; 576#L318 test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 638#L326 assume !(0 != test_~tmp~2#1); 608#L326-2 test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 609#L336 assume !(0 != test_~tmp___0~1#1); 579#L336-2 test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 654#L346 assume 0 != test_~tmp___2~0#1; 636#L352-2 assume { :begin_inline_timeShift } true; 637#L382 assume !(0 != ~pumpRunning~0); 612#L382-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret17#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 613#L440 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1; 694#L414-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 695#L406-3 assume { :end_inline_processEnvironment__wrappee__base } true; 689#L414-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 600#L440-1 assume { :end_inline_processEnvironment } true; 632#L389-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret10#1, __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 684#L100-1 __utac_acc__Specification2_spec__2_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret10#1;havoc __utac_acc__Specification2_spec__2_#t~ret10#1; 692#L274 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; 670#L274-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 686#L399 assume { :end_inline_timeShift } true; 687#L316-2 [2022-02-21 04:16:18,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:18,525 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:16:18,525 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:18,525 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175713359] [2022-02-21 04:16:18,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:18,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:18,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:18,542 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:18,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:18,560 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:18,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:18,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1201305590, now seen corresponding path program 1 times [2022-02-21 04:16:18,562 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:18,562 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125050914] [2022-02-21 04:16:18,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:18,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:18,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:18,581 INFO L290 TraceCheckUtils]: 0: Hoare triple {1476#true} assume !false; {1476#true} is VALID [2022-02-21 04:16:18,581 INFO L290 TraceCheckUtils]: 1: Hoare triple {1476#true} assume test_~splverifierCounter~0#1 < 4; {1476#true} is VALID [2022-02-21 04:16:18,581 INFO L290 TraceCheckUtils]: 2: Hoare triple {1476#true} test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; {1476#true} is VALID [2022-02-21 04:16:18,582 INFO L290 TraceCheckUtils]: 3: Hoare triple {1476#true} assume !(0 != test_~tmp~2#1); {1476#true} is VALID [2022-02-21 04:16:18,582 INFO L290 TraceCheckUtils]: 4: Hoare triple {1476#true} test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; {1476#true} is VALID [2022-02-21 04:16:18,582 INFO L290 TraceCheckUtils]: 5: Hoare triple {1476#true} assume !(0 != test_~tmp___0~1#1); {1476#true} is VALID [2022-02-21 04:16:18,582 INFO L290 TraceCheckUtils]: 6: Hoare triple {1476#true} test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; {1476#true} is VALID [2022-02-21 04:16:18,583 INFO L290 TraceCheckUtils]: 7: Hoare triple {1476#true} assume 0 != test_~tmp___2~0#1; {1476#true} is VALID [2022-02-21 04:16:18,583 INFO L290 TraceCheckUtils]: 8: Hoare triple {1476#true} assume { :begin_inline_timeShift } true; {1476#true} is VALID [2022-02-21 04:16:18,583 INFO L290 TraceCheckUtils]: 9: Hoare triple {1476#true} assume !(0 != ~pumpRunning~0); {1478#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:18,584 INFO L290 TraceCheckUtils]: 10: Hoare triple {1478#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret17#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; {1478#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:18,584 INFO L290 TraceCheckUtils]: 11: Hoare triple {1478#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1; {1478#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:18,585 INFO L290 TraceCheckUtils]: 12: Hoare triple {1478#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1477#false} is VALID [2022-02-21 04:16:18,585 INFO L290 TraceCheckUtils]: 13: Hoare triple {1477#false} assume { :end_inline_processEnvironment__wrappee__base } true; {1477#false} is VALID [2022-02-21 04:16:18,585 INFO L290 TraceCheckUtils]: 14: Hoare triple {1477#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {1477#false} is VALID [2022-02-21 04:16:18,586 INFO L290 TraceCheckUtils]: 15: Hoare triple {1477#false} assume { :end_inline_processEnvironment } true; {1477#false} is VALID [2022-02-21 04:16:18,587 INFO L290 TraceCheckUtils]: 16: Hoare triple {1477#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret10#1, __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; {1477#false} is VALID [2022-02-21 04:16:18,587 INFO L290 TraceCheckUtils]: 17: Hoare triple {1477#false} __utac_acc__Specification2_spec__2_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret10#1;havoc __utac_acc__Specification2_spec__2_#t~ret10#1; {1477#false} is VALID [2022-02-21 04:16:18,587 INFO L290 TraceCheckUtils]: 18: Hoare triple {1477#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; {1477#false} is VALID [2022-02-21 04:16:18,588 INFO L290 TraceCheckUtils]: 19: Hoare triple {1477#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {1477#false} is VALID [2022-02-21 04:16:18,588 INFO L290 TraceCheckUtils]: 20: Hoare triple {1477#false} assume { :end_inline_timeShift } true; {1477#false} is VALID [2022-02-21 04:16:18,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:18,589 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:18,589 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125050914] [2022-02-21 04:16:18,589 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125050914] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:18,590 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:18,590 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:16:18,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074996969] [2022-02-21 04:16:18,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:18,591 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:16:18,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:18,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:16:18,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:16:18,592 INFO L87 Difference]: Start difference. First operand 206 states and 278 transitions. cyclomatic complexity: 75 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:18,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:18,819 INFO L93 Difference]: Finished difference Result 259 states and 335 transitions. [2022-02-21 04:16:18,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:16:18,820 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:18,834 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:18,835 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 259 states and 335 transitions. [2022-02-21 04:16:18,842 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 185 [2022-02-21 04:16:18,849 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 259 states to 259 states and 335 transitions. [2022-02-21 04:16:18,850 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 259 [2022-02-21 04:16:18,850 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 259 [2022-02-21 04:16:18,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 259 states and 335 transitions. [2022-02-21 04:16:18,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:18,851 INFO L681 BuchiCegarLoop]: Abstraction has 259 states and 335 transitions. [2022-02-21 04:16:18,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states and 335 transitions. [2022-02-21 04:16:18,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 259. [2022-02-21 04:16:18,873 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:18,874 INFO L82 GeneralOperation]: Start isEquivalent. First operand 259 states and 335 transitions. Second operand has 259 states, 259 states have (on average 1.2934362934362935) internal successors, (335), 258 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:18,875 INFO L74 IsIncluded]: Start isIncluded. First operand 259 states and 335 transitions. Second operand has 259 states, 259 states have (on average 1.2934362934362935) internal successors, (335), 258 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:18,876 INFO L87 Difference]: Start difference. First operand 259 states and 335 transitions. Second operand has 259 states, 259 states have (on average 1.2934362934362935) internal successors, (335), 258 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:18,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:18,883 INFO L93 Difference]: Finished difference Result 259 states and 335 transitions. [2022-02-21 04:16:18,883 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 335 transitions. [2022-02-21 04:16:18,887 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:18,887 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:18,888 INFO L74 IsIncluded]: Start isIncluded. First operand has 259 states, 259 states have (on average 1.2934362934362935) internal successors, (335), 258 states have internal predecessors, (335), 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 259 states and 335 transitions. [2022-02-21 04:16:18,889 INFO L87 Difference]: Start difference. First operand has 259 states, 259 states have (on average 1.2934362934362935) internal successors, (335), 258 states have internal predecessors, (335), 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 259 states and 335 transitions. [2022-02-21 04:16:18,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:18,897 INFO L93 Difference]: Finished difference Result 259 states and 335 transitions. [2022-02-21 04:16:18,897 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 335 transitions. [2022-02-21 04:16:18,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:18,897 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:18,898 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:18,898 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:18,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 259 states have (on average 1.2934362934362935) internal successors, (335), 258 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:18,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 335 transitions. [2022-02-21 04:16:18,905 INFO L704 BuchiCegarLoop]: Abstraction has 259 states and 335 transitions. [2022-02-21 04:16:18,905 INFO L587 BuchiCegarLoop]: Abstraction has 259 states and 335 transitions. [2022-02-21 04:16:18,906 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:16:18,907 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 259 states and 335 transitions. [2022-02-21 04:16:18,911 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 185 [2022-02-21 04:16:18,911 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:18,911 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:18,913 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:18,913 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] [2022-02-21 04:16:18,914 INFO L791 eck$LassoCheckResult]: Stem: 1898#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;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1826#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1827#L590 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1834#L583 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 1877#L598 main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 1817#L241 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1818#L212 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1870#L263 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1864#L316-2 [2022-02-21 04:16:18,914 INFO L793 eck$LassoCheckResult]: Loop: 1864#L316-2 assume !false; 1750#L317 assume test_~splverifierCounter~0#1 < 4; 1751#L318 test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 1814#L326 assume !(0 != test_~tmp~2#1); 1782#L326-2 test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 1783#L336 assume !(0 != test_~tmp___0~1#1); 1754#L336-2 test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 1830#L346 assume 0 != test_~tmp___2~0#1; 1812#L352-2 assume { :begin_inline_timeShift } true; 1813#L382 assume !(0 != ~pumpRunning~0); 1787#L382-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret17#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 1788#L440 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1; 1871#L414-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret27#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 1832#L140-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1833#L145-1 isHighWaterLevel_#t~ret27#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret27#1;havoc isHighWaterLevel_#t~ret27#1; 1862#L542-3 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~2#1 := 0; 1828#L542-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 1829#L548-1 processEnvironment__wrappee__highWaterSensor_#t~ret16#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~3#1 := processEnvironment__wrappee__highWaterSensor_#t~ret16#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1; 1887#L418-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1865#L406-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1866#L414-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1775#L440-1 assume { :end_inline_processEnvironment } true; 1809#L389-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret10#1, __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 1860#L100-1 __utac_acc__Specification2_spec__2_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret10#1;havoc __utac_acc__Specification2_spec__2_#t~ret10#1; 1869#L274 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; 1846#L274-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1863#L399 assume { :end_inline_timeShift } true; 1864#L316-2 [2022-02-21 04:16:18,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:18,915 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:16:18,916 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:18,921 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221802707] [2022-02-21 04:16:18,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:18,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:18,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:18,956 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:18,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:18,978 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:18,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:18,980 INFO L85 PathProgramCache]: Analyzing trace with hash -613253906, now seen corresponding path program 1 times [2022-02-21 04:16:18,980 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:18,980 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338408182] [2022-02-21 04:16:18,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:18,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:18,994 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:19,001 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:19,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:19,002 INFO L85 PathProgramCache]: Analyzing trace with hash -442478491, now seen corresponding path program 1 times [2022-02-21 04:16:19,003 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:19,003 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640296233] [2022-02-21 04:16:19,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:19,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:19,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:19,034 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:19,052 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:22,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:16:22 BoogieIcfgContainer [2022-02-21 04:16:22,059 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:16:22,060 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:16:22,060 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:16:22,060 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:16:22,060 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:16" (3/4) ... [2022-02-21 04:16:22,063 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:16:22,101 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:16:22,101 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:16:22,102 INFO L158 Benchmark]: Toolchain (without parser) took 6793.69ms. Allocated memory was 92.3MB in the beginning and 172.0MB in the end (delta: 79.7MB). Free memory was 60.1MB in the beginning and 66.4MB in the end (delta: -6.2MB). Peak memory consumption was 72.6MB. Max. memory is 16.1GB. [2022-02-21 04:16:22,102 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 92.3MB. Free memory is still 47.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:16:22,103 INFO L158 Benchmark]: CACSL2BoogieTranslator took 496.39ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 59.9MB in the beginning and 80.1MB in the end (delta: -20.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:16:22,103 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.39ms. Allocated memory is still 115.3MB. Free memory was 80.1MB in the beginning and 75.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:22,103 INFO L158 Benchmark]: Boogie Preprocessor took 70.99ms. Allocated memory is still 115.3MB. Free memory was 75.9MB in the beginning and 73.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:22,104 INFO L158 Benchmark]: RCFGBuilder took 635.37ms. Allocated memory is still 115.3MB. Free memory was 73.7MB in the beginning and 78.3MB in the end (delta: -4.6MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:22,104 INFO L158 Benchmark]: BuchiAutomizer took 5451.32ms. Allocated memory was 115.3MB in the beginning and 172.0MB in the end (delta: 56.6MB). Free memory was 77.7MB in the beginning and 69.5MB in the end (delta: 8.2MB). Peak memory consumption was 77.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:22,104 INFO L158 Benchmark]: Witness Printer took 41.55ms. Allocated memory is still 172.0MB. Free memory was 69.5MB in the beginning and 66.4MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:22,106 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 0.23ms. Allocated memory is still 92.3MB. Free memory is still 47.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 496.39ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 59.9MB in the beginning and 80.1MB in the end (delta: -20.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.39ms. Allocated memory is still 115.3MB. Free memory was 80.1MB in the beginning and 75.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.99ms. Allocated memory is still 115.3MB. Free memory was 75.9MB in the beginning and 73.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 635.37ms. Allocated memory is still 115.3MB. Free memory was 73.7MB in the beginning and 78.3MB in the end (delta: -4.6MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 5451.32ms. Allocated memory was 115.3MB in the beginning and 172.0MB in the end (delta: 56.6MB). Free memory was 77.7MB in the beginning and 69.5MB in the end (delta: 8.2MB). Peak memory consumption was 77.2MB. Max. memory is 16.1GB. * Witness Printer took 41.55ms. Allocated memory is still 172.0MB. Free memory was 69.5MB in the beginning and 66.4MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 259 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.8s. 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 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 145 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 259 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1142 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1142 mSDsluCounter, 1373 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 945 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69 IncrementalHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 428 mSDtfsCounter, 69 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: 316]: 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, NULL=0, head=0, tmp___0=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a2f54ab=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3adb4a3c=0, tmp___0=0, retValue_acc=1, methaneLevelCritical=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21fc0503=0, \result=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24659d1=0, retValue_acc=0, \result=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ee428c5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@524ab9a=29, tmp=0, tmp=1, tmp___2=29, methAndRunningLastTime=0, cleanupTimeShifts=4, tmp=0, tmp=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f9784a2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@501fe5e2=0, tmp=0, head=0, tmp___1=0, NULL=0, retValue_acc=0, waterLevel=1, systemActive=1, tmp___0=0, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f6d59f9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35fbd056=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 316]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L151] int cleanupTimeShifts = 4; [L257] int methAndRunningLastTime ; [L375] int pumpRunning = 0; [L376] int systemActive = 1; [L772] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L232] int retValue_acc ; [L233] int tmp ; [L237] FCALL select_helpers() [L238] FCALL select_features() [L239] CALL, EXPR valid_product() [L594] int retValue_acc ; [L597] retValue_acc = 1 [L598] return (retValue_acc); [L239] RET, EXPR valid_product() [L239] tmp = valid_product() [L241] COND TRUE \read(tmp) [L243] FCALL setup() [L244] CALL runTest() [L222] CALL __utac_acc__Specification2_spec__1() [L262] methAndRunningLastTime = 0 [L222] RET __utac_acc__Specification2_spec__1() [L223] CALL test() [L307] int splverifierCounter ; [L308] int tmp ; [L309] int tmp___0 ; [L310] int tmp___1 ; [L311] int tmp___2 ; [L314] splverifierCounter = 0 Loop: [L316] COND TRUE 1 [L318] COND TRUE splverifierCounter < 4 [L324] tmp = __VERIFIER_nondet_int() [L326] COND FALSE !(\read(tmp)) [L334] tmp___0 = __VERIFIER_nondet_int() [L336] COND FALSE !(\read(tmp___0)) [L344] tmp___2 = __VERIFIER_nondet_int() [L346] COND TRUE \read(tmp___2) [L361] CALL timeShift() [L382] COND FALSE !(\read(pumpRunning)) [L389] COND TRUE \read(systemActive) [L391] CALL processEnvironment() [L437] int tmp ; [L440] COND FALSE !(\read(pumpRunning)) [L455] CALL processEnvironment__wrappee__highWaterSensor() [L411] int tmp ; [L414] COND TRUE ! pumpRunning [L416] CALL, EXPR isHighWaterLevel() [L534] int retValue_acc ; [L535] int tmp ; [L536] int tmp___0 ; [L540] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L540] RET, EXPR isHighWaterSensorDry() [L540] tmp = isHighWaterSensorDry() [L542] COND TRUE \read(tmp) [L543] tmp___0 = 0 [L547] retValue_acc = tmp___0 [L548] return (retValue_acc); [L416] RET, EXPR isHighWaterLevel() [L416] tmp = isHighWaterLevel() [L418] COND FALSE !(\read(tmp)) [L424] FCALL processEnvironment__wrappee__base() [L455] RET processEnvironment__wrappee__highWaterSensor() [L391] RET processEnvironment() [L397] CALL __utac_acc__Specification2_spec__2() [L267] int tmp ; [L268] int tmp___0 ; [L272] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L272] RET, EXPR isMethaneLevelCritical() [L272] tmp = isMethaneLevelCritical() [L274] COND FALSE !(\read(tmp)) [L290] methAndRunningLastTime = 0 [L397] RET __utac_acc__Specification2_spec__2() [L361] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:16:22,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)