./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product46.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product46.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 458689bcd0930e2b07a61b7490d83be8ce4e59412b26a60581bf78c492ee412e --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 15:26:38,460 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 15:26:38,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 15:26:38,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 15:26:38,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 15:26:38,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 15:26:38,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 15:26:38,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 15:26:38,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 15:26:38,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 15:26:38,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 15:26:38,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 15:26:38,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 15:26:38,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 15:26:38,499 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 15:26:38,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 15:26:38,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 15:26:38,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 15:26:38,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 15:26:38,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 15:26:38,507 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 15:26:38,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 15:26:38,509 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 15:26:38,510 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 15:26:38,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 15:26:38,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 15:26:38,514 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 15:26:38,514 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 15:26:38,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 15:26:38,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 15:26:38,516 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 15:26:38,516 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 15:26:38,517 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 15:26:38,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 15:26:38,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 15:26:38,519 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 15:26:38,520 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 15:26:38,520 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 15:26:38,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 15:26:38,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 15:26:38,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 15:26:38,524 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 15:26:38,524 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-23 15:26:38,558 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 15:26:38,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 15:26:38,560 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 15:26:38,560 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 15:26:38,562 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 15:26:38,562 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 15:26:38,562 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 15:26:38,562 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-23 15:26:38,563 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-23 15:26:38,563 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-23 15:26:38,563 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-23 15:26:38,563 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-23 15:26:38,563 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-23 15:26:38,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 15:26:38,564 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-23 15:26:38,564 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 15:26:38,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 15:26:38,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-23 15:26:38,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 15:26:38,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-23 15:26:38,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-23 15:26:38,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-23 15:26:38,566 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-23 15:26:38,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 15:26:38,566 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-23 15:26:38,566 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 15:26:38,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-23 15:26:38,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 15:26:38,567 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 15:26:38,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 15:26:38,567 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 15:26:38,568 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-23 15:26:38,568 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 458689bcd0930e2b07a61b7490d83be8ce4e59412b26a60581bf78c492ee412e [2022-07-23 15:26:38,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 15:26:38,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 15:26:38,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 15:26:38,781 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 15:26:38,781 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 15:26:38,782 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product46.cil.c [2022-07-23 15:26:38,835 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d82fbeff3/dd545e0e213d4f33a519375d5a863645/FLAG350f6aaaa [2022-07-23 15:26:39,246 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 15:26:39,246 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product46.cil.c [2022-07-23 15:26:39,258 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d82fbeff3/dd545e0e213d4f33a519375d5a863645/FLAG350f6aaaa [2022-07-23 15:26:39,277 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d82fbeff3/dd545e0e213d4f33a519375d5a863645 [2022-07-23 15:26:39,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 15:26:39,280 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 15:26:39,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 15:26:39,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 15:26:39,284 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 15:26:39,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:26:39" (1/1) ... [2022-07-23 15:26:39,294 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50f00e7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:39, skipping insertion in model container [2022-07-23 15:26:39,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:26:39" (1/1) ... [2022-07-23 15:26:39,301 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 15:26:39,345 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 15:26:39,563 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_spec3_product46.cil.c[18431,18444] [2022-07-23 15:26:39,564 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 15:26:39,572 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 15:26:39,647 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_spec3_product46.cil.c[18431,18444] [2022-07-23 15:26:39,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 15:26:39,667 INFO L208 MainTranslator]: Completed translation [2022-07-23 15:26:39,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:39 WrapperNode [2022-07-23 15:26:39,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 15:26:39,670 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 15:26:39,670 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 15:26:39,670 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 15:26:39,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:39" (1/1) ... [2022-07-23 15:26:39,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:39" (1/1) ... [2022-07-23 15:26:39,745 INFO L137 Inliner]: procedures = 55, calls = 157, calls flagged for inlining = 54, calls inlined = 99, statements flattened = 743 [2022-07-23 15:26:39,745 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 15:26:39,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 15:26:39,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 15:26:39,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 15:26:39,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:39" (1/1) ... [2022-07-23 15:26:39,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:39" (1/1) ... [2022-07-23 15:26:39,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:39" (1/1) ... [2022-07-23 15:26:39,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:39" (1/1) ... [2022-07-23 15:26:39,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:39" (1/1) ... [2022-07-23 15:26:39,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:39" (1/1) ... [2022-07-23 15:26:39,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:39" (1/1) ... [2022-07-23 15:26:39,776 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 15:26:39,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 15:26:39,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 15:26:39,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 15:26:39,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:39" (1/1) ... [2022-07-23 15:26:39,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 15:26:39,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 15:26:39,814 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 15:26:39,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-23 15:26:39,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 15:26:39,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 15:26:39,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 15:26:39,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 15:26:39,931 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 15:26:39,933 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 15:26:40,239 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 15:26:40,246 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 15:26:40,246 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-23 15:26:40,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:26:40 BoogieIcfgContainer [2022-07-23 15:26:40,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 15:26:40,249 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-23 15:26:40,249 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-23 15:26:40,252 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-23 15:26:40,253 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:26:40,253 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.07 03:26:39" (1/3) ... [2022-07-23 15:26:40,254 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d65df6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 03:26:40, skipping insertion in model container [2022-07-23 15:26:40,254 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:26:40,254 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:39" (2/3) ... [2022-07-23 15:26:40,255 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d65df6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 03:26:40, skipping insertion in model container [2022-07-23 15:26:40,255 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:26:40,255 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:26:40" (3/3) ... [2022-07-23 15:26:40,256 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product46.cil.c [2022-07-23 15:26:40,321 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-23 15:26:40,321 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-23 15:26:40,321 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-23 15:26:40,322 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-23 15:26:40,322 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-23 15:26:40,322 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-23 15:26:40,322 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-23 15:26:40,323 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-23 15:26:40,333 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 187 states, 186 states have (on average 1.3602150537634408) internal successors, (253), 186 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:26:40,359 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2022-07-23 15:26:40,359 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:26:40,359 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:26:40,365 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:40,365 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:40,365 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-23 15:26:40,366 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 187 states, 186 states have (on average 1.3602150537634408) internal successors, (253), 186 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:26:40,373 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2022-07-23 15:26:40,373 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:26:40,373 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:26:40,374 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:40,374 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:40,378 INFO L752 eck$LassoCheckResult]: Stem: 168#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 63#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret31#1, main_~retValue_acc~5#1, main_~tmp~4#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 160#L113true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 165#L106true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 43#L121true main_#t~ret31#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 15#L579true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 178#L555true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 172#L906-2true [2022-07-23 15:26:40,379 INFO L754 eck$LassoCheckResult]: Loop: 172#L906-2true assume !false; 86#L907true assume test_~splverifierCounter~0#1 < 4; 108#L908true test_~tmp~9#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 163#L916true assume !(0 != test_~tmp~9#1); 13#L916-2true test_~tmp___0~2#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 135#L926true assume !(0 != test_~tmp___0~2#1); 141#L926-2true test_~tmp___2~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 56#L936true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 9#L944true assume 0 != test_~tmp___1~1#1; 156#L944-2true assume { :begin_inline_timeShift } true; 90#L700true assume !(0 != ~pumpRunning~0); 130#L700-2true assume !(0 != ~systemActive~0); 104#L707-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 59#L639-3true __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 5#L63true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 181#L69-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 28#L717true assume { :end_inline_timeShift } true; 172#L906-2true [2022-07-23 15:26:40,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:40,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-07-23 15:26:40,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:40,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430111317] [2022-07-23 15:26:40,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:40,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:40,494 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:40,543 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:40,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:40,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1866549356, now seen corresponding path program 1 times [2022-07-23 15:26:40,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:40,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923373957] [2022-07-23 15:26:40,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:40,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:40,555 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:40,564 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:40,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:40,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1496736336, now seen corresponding path program 1 times [2022-07-23 15:26:40,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:40,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952274373] [2022-07-23 15:26:40,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:40,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:26:40,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:26:40,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:26:40,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952274373] [2022-07-23 15:26:40,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952274373] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:26:40,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:26:40,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 15:26:40,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93555133] [2022-07-23 15:26:40,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:26:40,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:26:40,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 15:26:40,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-23 15:26:40,943 INFO L87 Difference]: Start difference. First operand has 187 states, 186 states have (on average 1.3602150537634408) internal successors, (253), 186 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:26:41,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:26:41,016 INFO L93 Difference]: Finished difference Result 184 states and 239 transitions. [2022-07-23 15:26:41,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 15:26:41,022 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 184 states and 239 transitions. [2022-07-23 15:26:41,026 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 117 [2022-07-23 15:26:41,032 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 184 states to 174 states and 229 transitions. [2022-07-23 15:26:41,033 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 174 [2022-07-23 15:26:41,033 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 174 [2022-07-23 15:26:41,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 174 states and 229 transitions. [2022-07-23 15:26:41,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:26:41,035 INFO L369 hiAutomatonCegarLoop]: Abstraction has 174 states and 229 transitions. [2022-07-23 15:26:41,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states and 229 transitions. [2022-07-23 15:26:41,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2022-07-23 15:26:41,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 174 states have (on average 1.3160919540229885) internal successors, (229), 173 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:26:41,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 229 transitions. [2022-07-23 15:26:41,067 INFO L392 hiAutomatonCegarLoop]: Abstraction has 174 states and 229 transitions. [2022-07-23 15:26:41,067 INFO L374 stractBuchiCegarLoop]: Abstraction has 174 states and 229 transitions. [2022-07-23 15:26:41,067 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-23 15:26:41,067 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 174 states and 229 transitions. [2022-07-23 15:26:41,070 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 117 [2022-07-23 15:26:41,070 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:26:41,070 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:26:41,071 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:41,071 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:41,072 INFO L752 eck$LassoCheckResult]: Stem: 560#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 492#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret31#1, main_~retValue_acc~5#1, main_~tmp~4#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 493#L113 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 558#L106 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 464#L121 main_#t~ret31#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 415#L579 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 416#L555 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 439#L906-2 [2022-07-23 15:26:41,072 INFO L754 eck$LassoCheckResult]: Loop: 439#L906-2 assume !false; 515#L907 assume test_~splverifierCounter~0#1 < 4; 516#L908 test_~tmp~9#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 535#L916 assume !(0 != test_~tmp~9#1); 413#L916-2 test_~tmp___0~2#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 414#L926 assume !(0 != test_~tmp___0~2#1); 524#L926-2 test_~tmp___2~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 484#L936 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 404#L944 assume 0 != test_~tmp___1~1#1; 405#L944-2 assume { :begin_inline_timeShift } true; 522#L700 assume !(0 != ~pumpRunning~0); 505#L700-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 547#L758 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1; 550#L732-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 431#L724-3 assume { :end_inline_processEnvironment__wrappee__base } true; 411#L732-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 412#L758-1 assume { :end_inline_processEnvironment } true; 532#L707-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 488#L639-3 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 394#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 395#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 438#L717 assume { :end_inline_timeShift } true; 439#L906-2 [2022-07-23 15:26:41,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:41,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-07-23 15:26:41,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:41,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337602910] [2022-07-23 15:26:41,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:41,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:41,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:41,089 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:41,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:41,107 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:41,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:41,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1976629371, now seen corresponding path program 1 times [2022-07-23 15:26:41,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:41,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296021011] [2022-07-23 15:26:41,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:41,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:41,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:26:41,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:26:41,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:26:41,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296021011] [2022-07-23 15:26:41,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296021011] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:26:41,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:26:41,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 15:26:41,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967779946] [2022-07-23 15:26:41,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:26:41,156 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-23 15:26:41,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:26:41,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 15:26:41,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 15:26:41,157 INFO L87 Difference]: Start difference. First operand 174 states and 229 transitions. cyclomatic complexity: 57 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:26:41,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:26:41,283 INFO L93 Difference]: Finished difference Result 242 states and 307 transitions. [2022-07-23 15:26:41,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 15:26:41,284 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 242 states and 307 transitions. [2022-07-23 15:26:41,289 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 168 [2022-07-23 15:26:41,292 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 242 states to 242 states and 307 transitions. [2022-07-23 15:26:41,292 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 242 [2022-07-23 15:26:41,294 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 242 [2022-07-23 15:26:41,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 242 states and 307 transitions. [2022-07-23 15:26:41,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:26:41,295 INFO L369 hiAutomatonCegarLoop]: Abstraction has 242 states and 307 transitions. [2022-07-23 15:26:41,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states and 307 transitions. [2022-07-23 15:26:41,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2022-07-23 15:26:41,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 242 states have (on average 1.2685950413223142) internal successors, (307), 241 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:26:41,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 307 transitions. [2022-07-23 15:26:41,315 INFO L392 hiAutomatonCegarLoop]: Abstraction has 242 states and 307 transitions. [2022-07-23 15:26:41,316 INFO L374 stractBuchiCegarLoop]: Abstraction has 242 states and 307 transitions. [2022-07-23 15:26:41,316 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-23 15:26:41,316 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 242 states and 307 transitions. [2022-07-23 15:26:41,319 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 168 [2022-07-23 15:26:41,319 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:26:41,319 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:26:41,320 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:41,320 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:41,320 INFO L752 eck$LassoCheckResult]: Stem: 994#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 913#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret31#1, main_~retValue_acc~5#1, main_~tmp~4#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 914#L113 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 991#L106 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 882#L121 main_#t~ret31#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 836#L579 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 837#L555 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 857#L906-2 [2022-07-23 15:26:41,320 INFO L754 eck$LassoCheckResult]: Loop: 857#L906-2 assume !false; 940#L907 assume test_~splverifierCounter~0#1 < 4; 941#L908 test_~tmp~9#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 960#L916 assume !(0 != test_~tmp~9#1); 832#L916-2 test_~tmp___0~2#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 833#L926 assume !(0 != test_~tmp___0~2#1); 951#L926-2 test_~tmp___2~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 903#L936 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 824#L944 assume 0 != test_~tmp___1~1#1; 825#L944-2 assume { :begin_inline_timeShift } true; 947#L700 assume !(0 != ~pumpRunning~0); 948#L700-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 976#L758 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1; 980#L732-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 969#L679-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 970#L684-1 isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; 870#L877-3 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0; 871#L877-5 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 905#L883-1 processEnvironment__wrappee__methaneQuery_#t~ret37#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~5#1 := processEnvironment__wrappee__methaneQuery_#t~ret37#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1; 821#L736-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 823#L724-2 assume { :end_inline_processEnvironment__wrappee__base } true; 834#L732-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 835#L758-1 assume { :end_inline_processEnvironment } true; 958#L707-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 908#L639-3 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 816#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 817#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 856#L717 assume { :end_inline_timeShift } true; 857#L906-2 [2022-07-23 15:26:41,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:41,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-07-23 15:26:41,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:41,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801515652] [2022-07-23 15:26:41,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:41,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:41,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:41,338 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:41,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:41,357 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:41,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:41,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1357381533, now seen corresponding path program 1 times [2022-07-23 15:26:41,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:41,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892930022] [2022-07-23 15:26:41,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:41,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:41,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:41,367 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:41,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:41,377 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:41,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:41,378 INFO L85 PathProgramCache]: Analyzing trace with hash 106399585, now seen corresponding path program 1 times [2022-07-23 15:26:41,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:41,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561194167] [2022-07-23 15:26:41,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:41,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:41,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:26:41,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:26:41,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:26:41,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561194167] [2022-07-23 15:26:41,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561194167] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:26:41,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:26:41,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 15:26:41,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341628627] [2022-07-23 15:26:41,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:26:41,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:26:41,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 15:26:41,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 15:26:41,731 INFO L87 Difference]: Start difference. First operand 242 states and 307 transitions. cyclomatic complexity: 67 Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:26:41,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:26:41,935 INFO L93 Difference]: Finished difference Result 836 states and 1056 transitions. [2022-07-23 15:26:41,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 15:26:41,938 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 836 states and 1056 transitions. [2022-07-23 15:26:41,948 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 604 [2022-07-23 15:26:41,956 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 836 states to 836 states and 1056 transitions. [2022-07-23 15:26:41,956 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 836 [2022-07-23 15:26:41,958 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 836 [2022-07-23 15:26:41,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 836 states and 1056 transitions. [2022-07-23 15:26:41,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:26:41,964 INFO L369 hiAutomatonCegarLoop]: Abstraction has 836 states and 1056 transitions. [2022-07-23 15:26:41,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states and 1056 transitions. [2022-07-23 15:26:41,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 477. [2022-07-23 15:26:42,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 477 states have (on average 1.2557651991614256) internal successors, (599), 476 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:26:42,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 599 transitions. [2022-07-23 15:26:42,009 INFO L392 hiAutomatonCegarLoop]: Abstraction has 477 states and 599 transitions. [2022-07-23 15:26:42,009 INFO L374 stractBuchiCegarLoop]: Abstraction has 477 states and 599 transitions. [2022-07-23 15:26:42,009 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-23 15:26:42,009 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 477 states and 599 transitions. [2022-07-23 15:26:42,012 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 336 [2022-07-23 15:26:42,012 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:26:42,012 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:26:42,014 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:42,014 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:42,014 INFO L752 eck$LassoCheckResult]: Stem: 2105#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 2012#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret31#1, main_~retValue_acc~5#1, main_~tmp~4#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 2013#L113 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2100#L106 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1978#L121 main_#t~ret31#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 1932#L579 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 1933#L555 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2113#L906-2 [2022-07-23 15:26:42,014 INFO L754 eck$LassoCheckResult]: Loop: 2113#L906-2 assume !false; 2312#L907 assume test_~splverifierCounter~0#1 < 4; 2313#L908 test_~tmp~9#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 2382#L916 assume !(0 != test_~tmp~9#1); 2380#L916-2 test_~tmp___0~2#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 2086#L926 assume !(0 != test_~tmp___0~2#1); 2053#L926-2 test_~tmp___2~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 2000#L936 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 1920#L944 assume 0 != test_~tmp___1~1#1; 1921#L944-2 assume { :begin_inline_timeShift } true; 2048#L700 assume !(0 != ~pumpRunning~0); 2049#L700-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 2084#L758 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1; 2088#L732-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 2077#L679-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 2078#L684-1 isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; 1966#L877-3 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1967#L877-5 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 2002#L883-1 processEnvironment__wrappee__methaneQuery_#t~ret37#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~5#1 := processEnvironment__wrappee__methaneQuery_#t~ret37#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1; 2003#L736-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1936#L724-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1930#L732-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1931#L758-1 assume { :end_inline_processEnvironment } true; 2066#L707-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 2321#L639-3 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 2320#L63 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 2319#L671 __utac_acc__Specification3_spec__1_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 2317#L69 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 2315#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2314#L717 assume { :end_inline_timeShift } true; 2113#L906-2 [2022-07-23 15:26:42,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:42,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-07-23 15:26:42,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:42,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269462053] [2022-07-23 15:26:42,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:42,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:42,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:42,050 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:42,062 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:42,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:42,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1225150672, now seen corresponding path program 1 times [2022-07-23 15:26:42,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:42,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337356916] [2022-07-23 15:26:42,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:42,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:42,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:42,071 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:42,078 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:42,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:42,079 INFO L85 PathProgramCache]: Analyzing trace with hash -827959820, now seen corresponding path program 1 times [2022-07-23 15:26:42,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:42,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947485028] [2022-07-23 15:26:42,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:42,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:42,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:42,092 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:42,107 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:44,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.07 03:26:44 BoogieIcfgContainer [2022-07-23 15:26:44,834 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-23 15:26:44,835 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 15:26:44,835 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 15:26:44,835 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 15:26:44,836 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:26:40" (3/4) ... [2022-07-23 15:26:44,838 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-23 15:26:44,914 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-23 15:26:44,914 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 15:26:44,915 INFO L158 Benchmark]: Toolchain (without parser) took 5634.19ms. Allocated memory was 115.3MB in the beginning and 167.8MB in the end (delta: 52.4MB). Free memory was 90.6MB in the beginning and 108.2MB in the end (delta: -17.6MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. [2022-07-23 15:26:44,916 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 115.3MB. Free memory is still 70.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 15:26:44,916 INFO L158 Benchmark]: CACSL2BoogieTranslator took 387.55ms. Allocated memory is still 115.3MB. Free memory was 90.6MB in the beginning and 81.7MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-23 15:26:44,917 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.56ms. Allocated memory is still 115.3MB. Free memory was 81.3MB in the beginning and 77.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-23 15:26:44,922 INFO L158 Benchmark]: Boogie Preprocessor took 33.03ms. Allocated memory is still 115.3MB. Free memory was 77.5MB in the beginning and 75.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 15:26:44,922 INFO L158 Benchmark]: RCFGBuilder took 469.26ms. Allocated memory is still 115.3MB. Free memory was 75.0MB in the beginning and 51.5MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-07-23 15:26:44,922 INFO L158 Benchmark]: BuchiAutomizer took 4585.01ms. Allocated memory was 115.3MB in the beginning and 167.8MB in the end (delta: 52.4MB). Free memory was 51.5MB in the beginning and 111.2MB in the end (delta: -59.7MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. [2022-07-23 15:26:44,923 INFO L158 Benchmark]: Witness Printer took 79.43ms. Allocated memory is still 167.8MB. Free memory was 111.2MB in the beginning and 108.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 15:26:44,924 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 115.3MB. Free memory is still 70.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 387.55ms. Allocated memory is still 115.3MB. Free memory was 90.6MB in the beginning and 81.7MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.56ms. Allocated memory is still 115.3MB. Free memory was 81.3MB in the beginning and 77.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.03ms. Allocated memory is still 115.3MB. Free memory was 77.5MB in the beginning and 75.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 469.26ms. Allocated memory is still 115.3MB. Free memory was 75.0MB in the beginning and 51.5MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 4585.01ms. Allocated memory was 115.3MB in the beginning and 167.8MB in the end (delta: 52.4MB). Free memory was 51.5MB in the beginning and 111.2MB in the end (delta: -59.7MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. * Witness Printer took 79.43ms. Allocated memory is still 167.8MB. Free memory was 111.2MB in the beginning and 108.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 477 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 359 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1956 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1956 mSDsluCounter, 1907 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1134 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 175 IncrementalHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 773 mSDtfsCounter, 175 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 906]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6fefc115=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2dcf2d70=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d76dee9=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@159ed0ec=29, head=0, pumpRunning=0, tmp___0=0, retValue_acc=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8cdcab9=0, retValue_acc=1, tmp=0, methaneLevelCritical=0, tmp=0, tmp___0=1, \result=0, tmp=0, tmp=1, retValue_acc=1, retValue_acc=0, \result=1, \result=1, retValue_acc=1, retValue_acc=0, tmp___1=0, tmp___2=0, tmp=1, cleanupTimeShifts=4, \result=0, head=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19441cbd=0, tmp___1=29, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4572fdd1=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@220757e7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b6585c6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1855a450=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41494028=0, \result=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 906]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L295] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L492] int cleanupTimeShifts = 4; [L596] int waterLevel = 1; [L597] int methaneLevelCritical = 0; [L693] int pumpRunning = 0; [L694] int systemActive = 1; [L570] int retValue_acc ; [L571] int tmp ; [L575] FCALL select_helpers() [L576] FCALL select_features() [L577] CALL, EXPR valid_product() [L117] int retValue_acc ; [L120] retValue_acc = 1 [L121] return (retValue_acc); [L577] RET, EXPR valid_product() [L577] tmp = valid_product() [L579] COND TRUE \read(tmp) [L581] FCALL setup() [L582] CALL runTest() [L564] CALL test() [L897] int splverifierCounter ; [L898] int tmp ; [L899] int tmp___0 ; [L900] int tmp___1 ; [L901] int tmp___2 ; [L904] splverifierCounter = 0 Loop: [L906] COND TRUE 1 [L908] COND TRUE splverifierCounter < 4 [L914] tmp = __VERIFIER_nondet_int() [L916] COND FALSE !(\read(tmp)) [L924] tmp___0 = __VERIFIER_nondet_int() [L926] COND FALSE !(\read(tmp___0)) [L934] tmp___2 = __VERIFIER_nondet_int() [L936] COND FALSE !(\read(tmp___2)) [L942] tmp___1 = __VERIFIER_nondet_int() [L944] COND TRUE \read(tmp___1) [L951] CALL timeShift() [L700] COND FALSE !(\read(pumpRunning)) [L707] COND TRUE \read(systemActive) [L709] CALL processEnvironment() [L755] int tmp ; [L758] COND FALSE !(\read(pumpRunning)) [L773] CALL processEnvironment__wrappee__methaneQuery() [L729] int tmp ; [L732] COND TRUE ! pumpRunning [L734] CALL, EXPR isHighWaterLevel() [L869] int retValue_acc ; [L870] int tmp ; [L871] int tmp___0 ; [L875] CALL, EXPR isHighWaterSensorDry() [L676] int retValue_acc ; [L679] COND TRUE waterLevel < 2 [L680] retValue_acc = 1 [L681] return (retValue_acc); [L875] RET, EXPR isHighWaterSensorDry() [L875] tmp = isHighWaterSensorDry() [L877] COND TRUE \read(tmp) [L878] tmp___0 = 0 [L882] retValue_acc = tmp___0 [L883] return (retValue_acc); [L734] RET, EXPR isHighWaterLevel() [L734] tmp = isHighWaterLevel() [L736] COND FALSE !(\read(tmp)) [L742] FCALL processEnvironment__wrappee__base() [L773] RET processEnvironment__wrappee__methaneQuery() [L709] RET processEnvironment() [L715] CALL __utac_acc__Specification3_spec__1() [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L61] CALL, EXPR isMethaneLevelCritical() [L635] int retValue_acc ; [L638] retValue_acc = methaneLevelCritical [L639] return (retValue_acc); [L61] RET, EXPR isMethaneLevelCritical() [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L67] CALL, EXPR getWaterLevel() [L667] int retValue_acc ; [L670] retValue_acc = waterLevel [L671] return (retValue_acc); [L67] RET, EXPR getWaterLevel() [L67] tmp___0 = getWaterLevel() [L69] COND FALSE !(tmp___0 == 2) [L715] RET __utac_acc__Specification3_spec__1() [L951] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-23 15:26:44,964 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)