./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product59.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product59.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5a0a9a5f1521df25ea0ff390c35c7186e45318cd30c225704d83030e156744fb --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:15:43,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:15:43,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:15:43,548 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:15:43,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:15:43,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:15:43,551 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:15:43,552 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:15:43,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:15:43,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:15:43,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:15:43,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:15:43,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:15:43,558 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:15:43,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:15:43,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:15:43,560 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:15:43,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:15:43,562 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:15:43,564 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:15:43,565 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:15:43,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:15:43,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:15:43,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:15:43,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:15:43,581 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:15:43,581 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:15:43,582 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:15:43,583 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:15:43,583 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:15:43,584 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:15:43,585 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:15:43,586 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:15:43,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:15:43,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:15:43,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:15:43,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:15:43,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:15:43,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:15:43,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:15:43,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:15:43,593 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:15:43,620 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:15:43,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:15:43,623 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:15:43,623 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:15:43,625 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:15:43,625 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:15:43,625 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:15:43,625 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:15:43,626 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:15:43,626 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:15:43,626 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:15:43,627 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:15:43,627 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:15:43,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:15:43,627 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:15:43,627 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:15:43,628 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:15:43,628 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:15:43,628 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:15:43,628 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:15:43,628 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:15:43,628 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:15:43,629 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:15:43,629 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:15:43,629 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:15:43,629 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:15:43,629 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:15:43,630 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:15:43,630 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:15:43,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:15:43,630 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:15:43,631 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:15:43,631 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a0a9a5f1521df25ea0ff390c35c7186e45318cd30c225704d83030e156744fb [2022-02-21 04:15:43,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:15:43,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:15:43,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:15:43,893 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:15:43,894 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:15:43,895 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product59.cil.c [2022-02-21 04:15:43,981 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ebf083d5/2e6b0a19ec7a44ac9cb9ab09348d42ec/FLAG1ef50b755 [2022-02-21 04:15:44,445 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:15:44,446 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product59.cil.c [2022-02-21 04:15:44,456 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ebf083d5/2e6b0a19ec7a44ac9cb9ab09348d42ec/FLAG1ef50b755 [2022-02-21 04:15:44,935 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ebf083d5/2e6b0a19ec7a44ac9cb9ab09348d42ec [2022-02-21 04:15:44,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:15:44,939 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:15:44,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:44,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:15:44,960 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:15:44,961 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:44" (1/1) ... [2022-02-21 04:15:44,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4180d5af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:44, skipping insertion in model container [2022-02-21 04:15:44,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:44" (1/1) ... [2022-02-21 04:15:44,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:15:45,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:15:45,245 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product59.cil.c[3645,3658] [2022-02-21 04:15:45,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:45,394 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:15:45,426 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product59.cil.c[3645,3658] [2022-02-21 04:15:45,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:45,498 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:15:45,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:45 WrapperNode [2022-02-21 04:15:45,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:45,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:45,500 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:15:45,500 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:15:45,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:45" (1/1) ... [2022-02-21 04:15:45,525 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:45" (1/1) ... [2022-02-21 04:15:45,575 INFO L137 Inliner]: procedures = 57, calls = 158, calls flagged for inlining = 55, calls inlined = 97, statements flattened = 732 [2022-02-21 04:15:45,581 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:45,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:15:45,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:15:45,582 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:15:45,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:45" (1/1) ... [2022-02-21 04:15:45,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:45" (1/1) ... [2022-02-21 04:15:45,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:45" (1/1) ... [2022-02-21 04:15:45,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:45" (1/1) ... [2022-02-21 04:15:45,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:45" (1/1) ... [2022-02-21 04:15:45,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:45" (1/1) ... [2022-02-21 04:15:45,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:45" (1/1) ... [2022-02-21 04:15:45,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:15:45,625 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:15:45,625 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:15:45,625 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:15:45,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:45" (1/1) ... [2022-02-21 04:15:45,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:15:45,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:15:45,672 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:15:45,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:15:45,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:15:45,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:15:45,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:15:45,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:15:45,763 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:15:45,765 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:15:46,307 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:15:46,319 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:15:46,319 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:15:46,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:46 BoogieIcfgContainer [2022-02-21 04:15:46,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:15:46,326 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:15:46,326 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:15:46,329 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:15:46,329 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:46,329 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:15:44" (1/3) ... [2022-02-21 04:15:46,330 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@70a02c2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:46, skipping insertion in model container [2022-02-21 04:15:46,330 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:46,330 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:45" (2/3) ... [2022-02-21 04:15:46,331 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@70a02c2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:46, skipping insertion in model container [2022-02-21 04:15:46,331 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:46,331 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:46" (3/3) ... [2022-02-21 04:15:46,332 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product59.cil.c [2022-02-21 04:15:46,377 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:15:46,377 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:15:46,377 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:15:46,378 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:15:46,378 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:15:46,378 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:15:46,378 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:15:46,378 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:15:46,403 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 190 states, 189 states have (on average 1.3597883597883598) internal successors, (257), 189 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:46,471 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 124 [2022-02-21 04:15:46,472 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:46,472 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:46,478 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:46,478 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:46,478 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:15:46,483 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 190 states, 189 states have (on average 1.3597883597883598) internal successors, (257), 189 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:46,516 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 124 [2022-02-21 04:15:46,519 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:46,519 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:46,520 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:46,520 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:46,529 INFO L791 eck$LassoCheckResult]: Stem: 169#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(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;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 61#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 165#L892true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 79#L885true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 120#L900true main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 127#L987true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 96#L964true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 114#L211-2true [2022-02-21 04:15:46,530 INFO L793 eck$LassoCheckResult]: Loop: 114#L211-2true assume !false; 95#L212true assume test_~splverifierCounter~0#1 < 4; 177#L213true test_~tmp~1#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 115#L221true assume !(0 != test_~tmp~1#1); 86#L221-2true test_~tmp___0~1#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 110#L231true assume !(0 != test_~tmp___0~1#1); 9#L231-2true test_~tmp___2~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 48#L241true assume 0 != test_~tmp___2~0#1; 102#L247-2true assume { :begin_inline_timeShift } true; 189#L278true assume !(0 != ~pumpRunning~0); 7#L278-2true assume !(0 != ~systemActive~0); 81#L285-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret9#1, __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 116#L101-2true __utac_acc__Specification1_spec__1_#t~ret9#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret9#1;havoc __utac_acc__Specification1_spec__1_#t~ret9#1; 150#L171true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 47#L171-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 14#L295true assume { :end_inline_timeShift } true; 114#L211-2true [2022-02-21 04:15:46,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:46,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:15:46,544 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:46,544 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258250351] [2022-02-21 04:15:46,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:46,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:46,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:46,680 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:46,730 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:46,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:46,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1086892900, now seen corresponding path program 1 times [2022-02-21 04:15:46,732 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:46,733 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949475018] [2022-02-21 04:15:46,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:46,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:46,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:46,747 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:46,760 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:46,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:46,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1852655320, now seen corresponding path program 1 times [2022-02-21 04:15:46,766 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:46,766 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446806026] [2022-02-21 04:15:46,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:46,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:46,925 INFO L290 TraceCheckUtils]: 0: Hoare triple {198#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;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; {200#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:46,926 INFO L290 TraceCheckUtils]: 1: Hoare triple {200#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; {200#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:46,927 INFO L290 TraceCheckUtils]: 2: Hoare triple {200#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {200#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:46,927 INFO L290 TraceCheckUtils]: 3: Hoare triple {200#(= 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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; {201#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:15:46,928 INFO L290 TraceCheckUtils]: 4: Hoare triple {201#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; {202#(= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0)} is VALID [2022-02-21 04:15:46,928 INFO L290 TraceCheckUtils]: 5: Hoare triple {202#(= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0)} assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; {203#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:46,929 INFO L290 TraceCheckUtils]: 6: Hoare triple {203#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {203#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:46,930 INFO L290 TraceCheckUtils]: 7: Hoare triple {203#(not (= 0 ~systemActive~0))} assume !false; {203#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:46,930 INFO L290 TraceCheckUtils]: 8: Hoare triple {203#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {203#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:46,931 INFO L290 TraceCheckUtils]: 9: Hoare triple {203#(not (= 0 ~systemActive~0))} test_~tmp~1#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; {203#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:46,932 INFO L290 TraceCheckUtils]: 10: Hoare triple {203#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~1#1); {203#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:46,932 INFO L290 TraceCheckUtils]: 11: Hoare triple {203#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; {203#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:46,933 INFO L290 TraceCheckUtils]: 12: Hoare triple {203#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {203#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:46,933 INFO L290 TraceCheckUtils]: 13: Hoare triple {203#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; {203#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:46,934 INFO L290 TraceCheckUtils]: 14: Hoare triple {203#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {203#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:46,934 INFO L290 TraceCheckUtils]: 15: Hoare triple {203#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {203#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:46,935 INFO L290 TraceCheckUtils]: 16: Hoare triple {203#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {203#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:46,935 INFO L290 TraceCheckUtils]: 17: Hoare triple {203#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {199#false} is VALID [2022-02-21 04:15:46,936 INFO L290 TraceCheckUtils]: 18: Hoare triple {199#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret9#1, __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; {199#false} is VALID [2022-02-21 04:15:46,937 INFO L290 TraceCheckUtils]: 19: Hoare triple {199#false} __utac_acc__Specification1_spec__1_#t~ret9#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret9#1;havoc __utac_acc__Specification1_spec__1_#t~ret9#1; {199#false} is VALID [2022-02-21 04:15:46,937 INFO L290 TraceCheckUtils]: 20: Hoare triple {199#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); {199#false} is VALID [2022-02-21 04:15:46,937 INFO L290 TraceCheckUtils]: 21: Hoare triple {199#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {199#false} is VALID [2022-02-21 04:15:46,938 INFO L290 TraceCheckUtils]: 22: Hoare triple {199#false} assume { :end_inline_timeShift } true; {199#false} is VALID [2022-02-21 04:15:46,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:15:46,940 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:46,941 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446806026] [2022-02-21 04:15:46,941 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446806026] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:46,942 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:46,942 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:15:46,942 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647748016] [2022-02-21 04:15:46,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:47,074 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:47,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:15:47,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:15:47,108 INFO L87 Difference]: Start difference. First operand has 190 states, 189 states have (on average 1.3597883597883598) internal successors, (257), 189 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:48,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:48,080 INFO L93 Difference]: Finished difference Result 431 states and 563 transitions. [2022-02-21 04:15:48,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:15:48,082 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:48,105 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:48,119 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 431 states and 563 transitions. [2022-02-21 04:15:48,141 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 279 [2022-02-21 04:15:48,162 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 431 states to 401 states and 533 transitions. [2022-02-21 04:15:48,163 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 401 [2022-02-21 04:15:48,165 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 401 [2022-02-21 04:15:48,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 401 states and 533 transitions. [2022-02-21 04:15:48,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:48,169 INFO L681 BuchiCegarLoop]: Abstraction has 401 states and 533 transitions. [2022-02-21 04:15:48,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states and 533 transitions. [2022-02-21 04:15:48,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 229. [2022-02-21 04:15:48,200 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:48,202 INFO L82 GeneralOperation]: Start isEquivalent. First operand 401 states and 533 transitions. Second operand has 229 states, 229 states have (on average 1.3275109170305677) internal successors, (304), 228 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:48,203 INFO L74 IsIncluded]: Start isIncluded. First operand 401 states and 533 transitions. Second operand has 229 states, 229 states have (on average 1.3275109170305677) internal successors, (304), 228 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:48,204 INFO L87 Difference]: Start difference. First operand 401 states and 533 transitions. Second operand has 229 states, 229 states have (on average 1.3275109170305677) internal successors, (304), 228 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:48,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:48,223 INFO L93 Difference]: Finished difference Result 401 states and 533 transitions. [2022-02-21 04:15:48,224 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 533 transitions. [2022-02-21 04:15:48,227 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:48,227 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:48,228 INFO L74 IsIncluded]: Start isIncluded. First operand has 229 states, 229 states have (on average 1.3275109170305677) internal successors, (304), 228 states have internal predecessors, (304), 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 401 states and 533 transitions. [2022-02-21 04:15:48,228 INFO L87 Difference]: Start difference. First operand has 229 states, 229 states have (on average 1.3275109170305677) internal successors, (304), 228 states have internal predecessors, (304), 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 401 states and 533 transitions. [2022-02-21 04:15:48,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:48,244 INFO L93 Difference]: Finished difference Result 401 states and 533 transitions. [2022-02-21 04:15:48,244 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 533 transitions. [2022-02-21 04:15:48,246 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:48,246 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:48,246 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:48,246 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:48,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 229 states have (on average 1.3275109170305677) internal successors, (304), 228 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:48,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 304 transitions. [2022-02-21 04:15:48,255 INFO L704 BuchiCegarLoop]: Abstraction has 229 states and 304 transitions. [2022-02-21 04:15:48,255 INFO L587 BuchiCegarLoop]: Abstraction has 229 states and 304 transitions. [2022-02-21 04:15:48,255 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:15:48,255 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 229 states and 304 transitions. [2022-02-21 04:15:48,256 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 160 [2022-02-21 04:15:48,257 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:48,257 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:48,257 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:48,257 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 04:15:48,258 INFO L791 eck$LassoCheckResult]: Stem: 810#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;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 728#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 729#L892 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 748#L885 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 749#L900 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 786#L987 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 767#L964 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 660#L211-2 [2022-02-21 04:15:48,258 INFO L793 eck$LassoCheckResult]: Loop: 660#L211-2 assume !false; 765#L212 assume test_~splverifierCounter~0#1 < 4; 766#L213 test_~tmp~1#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 782#L221 assume !(0 != test_~tmp~1#1); 756#L221-2 test_~tmp___0~1#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 757#L231 assume !(0 != test_~tmp___0~1#1); 650#L231-2 test_~tmp___2~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 651#L241 assume 0 != test_~tmp___2~0#1; 712#L247-2 assume { :begin_inline_timeShift } true; 773#L278 assume !(0 != ~pumpRunning~0); 645#L278-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret16#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 646#L336 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret15#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 647#L310-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 648#L302-3 assume { :end_inline_processEnvironment__wrappee__base } true; 639#L310-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 640#L336-1 assume { :end_inline_processEnvironment } true; 661#L285-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret9#1, __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 751#L101-2 __utac_acc__Specification1_spec__1_#t~ret9#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret9#1;havoc __utac_acc__Specification1_spec__1_#t~ret9#1; 783#L171 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 653#L171-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 659#L295 assume { :end_inline_timeShift } true; 660#L211-2 [2022-02-21 04:15:48,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:48,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:15:48,259 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:48,259 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952333498] [2022-02-21 04:15:48,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:48,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:48,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:48,273 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:48,287 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:48,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:48,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1122654490, now seen corresponding path program 1 times [2022-02-21 04:15:48,288 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:48,288 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631461371] [2022-02-21 04:15:48,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:48,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:48,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:48,305 INFO L290 TraceCheckUtils]: 0: Hoare triple {1675#true} assume !false; {1675#true} is VALID [2022-02-21 04:15:48,306 INFO L290 TraceCheckUtils]: 1: Hoare triple {1675#true} assume test_~splverifierCounter~0#1 < 4; {1675#true} is VALID [2022-02-21 04:15:48,306 INFO L290 TraceCheckUtils]: 2: Hoare triple {1675#true} test_~tmp~1#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; {1675#true} is VALID [2022-02-21 04:15:48,306 INFO L290 TraceCheckUtils]: 3: Hoare triple {1675#true} assume !(0 != test_~tmp~1#1); {1675#true} is VALID [2022-02-21 04:15:48,306 INFO L290 TraceCheckUtils]: 4: Hoare triple {1675#true} test_~tmp___0~1#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; {1675#true} is VALID [2022-02-21 04:15:48,306 INFO L290 TraceCheckUtils]: 5: Hoare triple {1675#true} assume !(0 != test_~tmp___0~1#1); {1675#true} is VALID [2022-02-21 04:15:48,307 INFO L290 TraceCheckUtils]: 6: Hoare triple {1675#true} test_~tmp___2~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; {1675#true} is VALID [2022-02-21 04:15:48,307 INFO L290 TraceCheckUtils]: 7: Hoare triple {1675#true} assume 0 != test_~tmp___2~0#1; {1675#true} is VALID [2022-02-21 04:15:48,307 INFO L290 TraceCheckUtils]: 8: Hoare triple {1675#true} assume { :begin_inline_timeShift } true; {1675#true} is VALID [2022-02-21 04:15:48,308 INFO L290 TraceCheckUtils]: 9: Hoare triple {1675#true} assume !(0 != ~pumpRunning~0); {1677#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:48,308 INFO L290 TraceCheckUtils]: 10: Hoare triple {1677#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret16#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; {1677#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:48,308 INFO L290 TraceCheckUtils]: 11: Hoare triple {1677#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret15#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; {1677#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:48,309 INFO L290 TraceCheckUtils]: 12: Hoare triple {1677#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1676#false} is VALID [2022-02-21 04:15:48,309 INFO L290 TraceCheckUtils]: 13: Hoare triple {1676#false} assume { :end_inline_processEnvironment__wrappee__base } true; {1676#false} is VALID [2022-02-21 04:15:48,309 INFO L290 TraceCheckUtils]: 14: Hoare triple {1676#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {1676#false} is VALID [2022-02-21 04:15:48,310 INFO L290 TraceCheckUtils]: 15: Hoare triple {1676#false} assume { :end_inline_processEnvironment } true; {1676#false} is VALID [2022-02-21 04:15:48,310 INFO L290 TraceCheckUtils]: 16: Hoare triple {1676#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret9#1, __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; {1676#false} is VALID [2022-02-21 04:15:48,310 INFO L290 TraceCheckUtils]: 17: Hoare triple {1676#false} __utac_acc__Specification1_spec__1_#t~ret9#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret9#1;havoc __utac_acc__Specification1_spec__1_#t~ret9#1; {1676#false} is VALID [2022-02-21 04:15:48,310 INFO L290 TraceCheckUtils]: 18: Hoare triple {1676#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); {1676#false} is VALID [2022-02-21 04:15:48,310 INFO L290 TraceCheckUtils]: 19: Hoare triple {1676#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {1676#false} is VALID [2022-02-21 04:15:48,311 INFO L290 TraceCheckUtils]: 20: Hoare triple {1676#false} assume { :end_inline_timeShift } true; {1676#false} is VALID [2022-02-21 04:15:48,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:15:48,311 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:48,311 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631461371] [2022-02-21 04:15:48,312 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631461371] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:48,312 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:48,312 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:15:48,312 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333170724] [2022-02-21 04:15:48,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:48,313 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:48,313 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:48,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:15:48,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:15:48,314 INFO L87 Difference]: Start difference. First operand 229 states and 304 transitions. cyclomatic complexity: 78 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 04:15:48,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:48,540 INFO L93 Difference]: Finished difference Result 285 states and 361 transitions. [2022-02-21 04:15:48,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:15:48,540 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 04:15:48,555 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 04:15:48,556 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 285 states and 361 transitions. [2022-02-21 04:15:48,566 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 203 [2022-02-21 04:15:48,573 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 285 states to 285 states and 361 transitions. [2022-02-21 04:15:48,573 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 285 [2022-02-21 04:15:48,574 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 285 [2022-02-21 04:15:48,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 285 states and 361 transitions. [2022-02-21 04:15:48,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:48,576 INFO L681 BuchiCegarLoop]: Abstraction has 285 states and 361 transitions. [2022-02-21 04:15:48,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states and 361 transitions. [2022-02-21 04:15:48,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2022-02-21 04:15:48,593 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:48,593 INFO L82 GeneralOperation]: Start isEquivalent. First operand 285 states and 361 transitions. Second operand has 285 states, 285 states have (on average 1.2666666666666666) internal successors, (361), 284 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:48,594 INFO L74 IsIncluded]: Start isIncluded. First operand 285 states and 361 transitions. Second operand has 285 states, 285 states have (on average 1.2666666666666666) internal successors, (361), 284 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:48,595 INFO L87 Difference]: Start difference. First operand 285 states and 361 transitions. Second operand has 285 states, 285 states have (on average 1.2666666666666666) internal successors, (361), 284 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:48,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:48,603 INFO L93 Difference]: Finished difference Result 285 states and 361 transitions. [2022-02-21 04:15:48,603 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 361 transitions. [2022-02-21 04:15:48,604 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:48,604 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:48,605 INFO L74 IsIncluded]: Start isIncluded. First operand has 285 states, 285 states have (on average 1.2666666666666666) internal successors, (361), 284 states have internal predecessors, (361), 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 285 states and 361 transitions. [2022-02-21 04:15:48,605 INFO L87 Difference]: Start difference. First operand has 285 states, 285 states have (on average 1.2666666666666666) internal successors, (361), 284 states have internal predecessors, (361), 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 285 states and 361 transitions. [2022-02-21 04:15:48,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:48,612 INFO L93 Difference]: Finished difference Result 285 states and 361 transitions. [2022-02-21 04:15:48,612 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 361 transitions. [2022-02-21 04:15:48,612 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:48,612 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:48,613 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:48,613 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:48,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 285 states have (on average 1.2666666666666666) internal successors, (361), 284 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:48,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 361 transitions. [2022-02-21 04:15:48,619 INFO L704 BuchiCegarLoop]: Abstraction has 285 states and 361 transitions. [2022-02-21 04:15:48,620 INFO L587 BuchiCegarLoop]: Abstraction has 285 states and 361 transitions. [2022-02-21 04:15:48,620 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:15:48,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 285 states and 361 transitions. [2022-02-21 04:15:48,621 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 203 [2022-02-21 04:15:48,621 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:48,621 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:48,622 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:48,622 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 04:15:48,622 INFO L791 eck$LassoCheckResult]: Stem: 2144#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;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 2051#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 2052#L892 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2074#L885 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 2075#L900 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 2116#L987 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 2095#L964 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2096#L211-2 [2022-02-21 04:15:48,627 INFO L793 eck$LassoCheckResult]: Loop: 2096#L211-2 assume !false; 2093#L212 assume test_~splverifierCounter~0#1 < 4; 2094#L213 test_~tmp~1#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 2113#L221 assume !(0 != test_~tmp~1#1); 2084#L221-2 test_~tmp___0~1#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 2085#L231 assume !(0 != test_~tmp___0~1#1); 2242#L231-2 test_~tmp___2~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 2241#L241 assume 0 != test_~tmp___2~0#1; 2239#L247-2 assume { :begin_inline_timeShift } true; 2154#L278 assume !(0 != ~pumpRunning~0); 1967#L278-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret16#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1968#L336 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret15#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 1971#L310-2 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; 1972#L141-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 2016#L146-1 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; 2017#L456-3 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~2#1 := 0; 2024#L456-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 2140#L462-1 processEnvironment__wrappee__highWaterSensor_#t~ret15#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret15#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret15#1; 2034#L314-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2035#L302-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1963#L310-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1964#L336-1 assume { :end_inline_processEnvironment } true; 1984#L285-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret9#1, __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 2219#L101-2 __utac_acc__Specification1_spec__1_#t~ret9#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret9#1;havoc __utac_acc__Specification1_spec__1_#t~ret9#1; 2217#L171 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 2215#L171-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 2214#L295 assume { :end_inline_timeShift } true; 2096#L211-2 [2022-02-21 04:15:48,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:48,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:15:48,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:48,629 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17253886] [2022-02-21 04:15:48,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:48,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:48,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:48,655 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:48,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:48,681 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:48,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:48,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1041206770, now seen corresponding path program 1 times [2022-02-21 04:15:48,682 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:48,683 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026568841] [2022-02-21 04:15:48,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:48,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:48,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:48,691 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:48,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:48,697 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:48,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:48,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1416494510, now seen corresponding path program 1 times [2022-02-21 04:15:48,698 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:48,698 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631153768] [2022-02-21 04:15:48,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:48,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:48,713 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:48,728 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:51,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:15:51 BoogieIcfgContainer [2022-02-21 04:15:51,400 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:15:51,401 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:15:51,401 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:15:51,401 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:15:51,401 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:46" (3/4) ... [2022-02-21 04:15:51,404 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:15:51,449 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:15:51,449 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:15:51,451 INFO L158 Benchmark]: Toolchain (without parser) took 6511.23ms. Allocated memory was 92.3MB in the beginning and 148.9MB in the end (delta: 56.6MB). Free memory was 52.6MB in the beginning and 101.9MB in the end (delta: -49.4MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2022-02-21 04:15:51,451 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 92.3MB. Free memory is still 69.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:15:51,451 INFO L158 Benchmark]: CACSL2BoogieTranslator took 554.21ms. Allocated memory is still 92.3MB. Free memory was 52.4MB in the beginning and 54.8MB in the end (delta: -2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:51,451 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.91ms. Allocated memory is still 92.3MB. Free memory was 54.8MB in the beginning and 50.1MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:51,452 INFO L158 Benchmark]: Boogie Preprocessor took 42.64ms. Allocated memory is still 92.3MB. Free memory was 50.1MB in the beginning and 47.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:51,452 INFO L158 Benchmark]: RCFGBuilder took 698.10ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 47.2MB in the beginning and 85.9MB in the end (delta: -38.7MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:51,453 INFO L158 Benchmark]: BuchiAutomizer took 5074.52ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 85.9MB in the beginning and 105.0MB in the end (delta: -19.1MB). Peak memory consumption was 76.6MB. Max. memory is 16.1GB. [2022-02-21 04:15:51,453 INFO L158 Benchmark]: Witness Printer took 48.95ms. Allocated memory is still 148.9MB. Free memory was 105.0MB in the beginning and 101.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:51,455 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 92.3MB. Free memory is still 69.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 554.21ms. Allocated memory is still 92.3MB. Free memory was 52.4MB in the beginning and 54.8MB in the end (delta: -2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.91ms. Allocated memory is still 92.3MB. Free memory was 54.8MB in the beginning and 50.1MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.64ms. Allocated memory is still 92.3MB. Free memory was 50.1MB in the beginning and 47.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 698.10ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 47.2MB in the beginning and 85.9MB in the end (delta: -38.7MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 5074.52ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 85.9MB in the beginning and 105.0MB in the end (delta: -19.1MB). Peak memory consumption was 76.6MB. Max. memory is 16.1GB. * Witness Printer took 48.95ms. Allocated memory is still 148.9MB. Free memory was 105.0MB in the beginning and 101.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 285 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.3s. Construction of modules took 0.0s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 172 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 285 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1102 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1102 mSDsluCounter, 1584 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1114 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 73 IncrementalHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 470 mSDtfsCounter, 73 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: 211]: 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, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b81a378=0, head=0, tmp___0=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@191df8a2=0, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4138fdf6=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b2ae48e=0, retValue_acc=1, methaneLevelCritical=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54402e4a=0, \result=0, retValue_acc=0, retValue_acc=0, \result=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3881915e=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42064c19=0, tmp=1, tmp=1, tmp___2=29, tmp=0, cleanupTimeShifts=4, \result=0, tmp=0, head=0, tmp___1=0, NULL=0, retValue_acc=0, tmp=0, waterLevel=1, systemActive=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3af319e2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65d836=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71d14af=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 211]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L58] int waterLevel = 1; [L59] int methaneLevelCritical = 0; [L271] int pumpRunning = 0; [L272] int systemActive = 1; [L670] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L905] int cleanupTimeShifts = 4; [L978] int retValue_acc ; [L979] int tmp ; [L983] FCALL select_helpers() [L984] FCALL select_features() [L985] CALL, EXPR valid_product() [L896] int retValue_acc ; [L899] retValue_acc = 1 [L900] return (retValue_acc); [L985] RET, EXPR valid_product() [L985] tmp = valid_product() [L987] COND TRUE \read(tmp) [L989] FCALL setup() [L990] CALL runTest() [L972] CALL test() [L202] int splverifierCounter ; [L203] int tmp ; [L204] int tmp___0 ; [L205] int tmp___1 ; [L206] int tmp___2 ; [L209] splverifierCounter = 0 Loop: [L211] COND TRUE 1 [L213] COND TRUE splverifierCounter < 4 [L219] tmp = __VERIFIER_nondet_int() [L221] COND FALSE !(\read(tmp)) [L229] tmp___0 = __VERIFIER_nondet_int() [L231] COND FALSE !(\read(tmp___0)) [L239] tmp___2 = __VERIFIER_nondet_int() [L241] COND TRUE \read(tmp___2) [L256] CALL timeShift() [L278] COND FALSE !(\read(pumpRunning)) [L285] COND TRUE \read(systemActive) [L287] CALL processEnvironment() [L333] int tmp ; [L336] COND FALSE !(\read(pumpRunning)) [L351] CALL processEnvironment__wrappee__highWaterSensor() [L307] int tmp ; [L310] COND TRUE ! pumpRunning [L312] CALL, EXPR isHighWaterLevel() [L448] int retValue_acc ; [L449] int tmp ; [L450] int tmp___0 ; [L454] CALL, EXPR isHighWaterSensorDry() [L138] int retValue_acc ; [L141] COND TRUE waterLevel < 2 [L142] retValue_acc = 1 [L143] return (retValue_acc); [L454] RET, EXPR isHighWaterSensorDry() [L454] tmp = isHighWaterSensorDry() [L456] COND TRUE \read(tmp) [L457] tmp___0 = 0 [L461] retValue_acc = tmp___0 [L462] return (retValue_acc); [L312] RET, EXPR isHighWaterLevel() [L312] tmp = isHighWaterLevel() [L314] COND FALSE !(\read(tmp)) [L320] FCALL processEnvironment__wrappee__base() [L351] RET processEnvironment__wrappee__highWaterSensor() [L287] RET processEnvironment() [L293] CALL __utac_acc__Specification1_spec__1() [L164] int tmp ; [L165] int tmp___0 ; [L169] CALL, EXPR isMethaneLevelCritical() [L97] int retValue_acc ; [L100] retValue_acc = methaneLevelCritical [L101] return (retValue_acc); [L169] RET, EXPR isMethaneLevelCritical() [L169] tmp = isMethaneLevelCritical() [L171] COND FALSE !(\read(tmp)) [L293] RET __utac_acc__Specification1_spec__1() [L256] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:15:51,492 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)