./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product33.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_spec2_product33.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 6e02099a7691e56a2269c7f6adf0fcb5caba1ee7f52ae5d6ac320766d29d8d07 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 15:25:48,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 15:25:48,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 15:25:48,538 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 15:25:48,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 15:25:48,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 15:25:48,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 15:25:48,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 15:25:48,546 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 15:25:48,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 15:25:48,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 15:25:48,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 15:25:48,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 15:25:48,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 15:25:48,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 15:25:48,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 15:25:48,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 15:25:48,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 15:25:48,559 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 15:25:48,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 15:25:48,564 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 15:25:48,565 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 15:25:48,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 15:25:48,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 15:25:48,567 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 15:25:48,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 15:25:48,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 15:25:48,573 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 15:25:48,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 15:25:48,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 15:25:48,574 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 15:25:48,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 15:25:48,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 15:25:48,576 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 15:25:48,577 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 15:25:48,578 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 15:25:48,578 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 15:25:48,579 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 15:25:48,579 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 15:25:48,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 15:25:48,579 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 15:25:48,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 15:25:48,581 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-23 15:25:48,601 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 15:25:48,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 15:25:48,601 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 15:25:48,602 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 15:25:48,603 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 15:25:48,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 15:25:48,603 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 15:25:48,603 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-23 15:25:48,603 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-23 15:25:48,604 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-23 15:25:48,604 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-23 15:25:48,604 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-23 15:25:48,604 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-23 15:25:48,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 15:25:48,605 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-23 15:25:48,605 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 15:25:48,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 15:25:48,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-23 15:25:48,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 15:25:48,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-23 15:25:48,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-23 15:25:48,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-23 15:25:48,606 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-23 15:25:48,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 15:25:48,606 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-23 15:25:48,606 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 15:25:48,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-23 15:25:48,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 15:25:48,607 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 15:25:48,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 15:25:48,607 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 15:25:48,608 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-23 15:25:48,608 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e02099a7691e56a2269c7f6adf0fcb5caba1ee7f52ae5d6ac320766d29d8d07 [2022-07-23 15:25:48,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 15:25:48,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 15:25:48,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 15:25:48,817 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 15:25:48,818 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 15:25:48,827 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c [2022-07-23 15:25:48,879 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e2594f5e/07a8728066f349a8b5f90c8bc8a4980a/FLAGb3c0a48af [2022-07-23 15:25:49,344 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 15:25:49,345 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c [2022-07-23 15:25:49,354 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e2594f5e/07a8728066f349a8b5f90c8bc8a4980a/FLAGb3c0a48af [2022-07-23 15:25:49,370 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e2594f5e/07a8728066f349a8b5f90c8bc8a4980a [2022-07-23 15:25:49,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 15:25:49,372 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 15:25:49,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 15:25:49,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 15:25:49,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 15:25:49,377 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:25:49" (1/1) ... [2022-07-23 15:25:49,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e300acc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:25:49, skipping insertion in model container [2022-07-23 15:25:49,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:25:49" (1/1) ... [2022-07-23 15:25:49,383 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 15:25:49,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 15:25:49,595 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c[4842,4855] [2022-07-23 15:25:49,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 15:25:49,642 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 15:25:49,657 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c[4842,4855] [2022-07-23 15:25:49,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 15:25:49,693 INFO L208 MainTranslator]: Completed translation [2022-07-23 15:25:49,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:25:49 WrapperNode [2022-07-23 15:25:49,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 15:25:49,695 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 15:25:49,695 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 15:25:49,695 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 15:25:49,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:25:49" (1/1) ... [2022-07-23 15:25:49,709 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:25:49" (1/1) ... [2022-07-23 15:25:49,729 INFO L137 Inliner]: procedures = 53, calls = 150, calls flagged for inlining = 47, calls inlined = 48, statements flattened = 405 [2022-07-23 15:25:49,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 15:25:49,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 15:25:49,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 15:25:49,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 15:25:49,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:25:49" (1/1) ... [2022-07-23 15:25:49,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:25:49" (1/1) ... [2022-07-23 15:25:49,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:25:49" (1/1) ... [2022-07-23 15:25:49,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:25:49" (1/1) ... [2022-07-23 15:25:49,743 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:25:49" (1/1) ... [2022-07-23 15:25:49,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:25:49" (1/1) ... [2022-07-23 15:25:49,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:25:49" (1/1) ... [2022-07-23 15:25:49,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 15:25:49,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 15:25:49,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 15:25:49,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 15:25:49,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:25:49" (1/1) ... [2022-07-23 15:25:49,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 15:25:49,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 15:25:49,782 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 15:25:49,789 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 15:25:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 15:25:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 15:25:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 15:25:49,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 15:25:49,902 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 15:25:49,903 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 15:25:50,264 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 15:25:50,269 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 15:25:50,270 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-23 15:25:50,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:25:50 BoogieIcfgContainer [2022-07-23 15:25:50,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 15:25:50,274 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-23 15:25:50,274 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-23 15:25:50,277 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-23 15:25:50,277 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:25:50,278 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.07 03:25:49" (1/3) ... [2022-07-23 15:25:50,279 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e1386ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 03:25:50, skipping insertion in model container [2022-07-23 15:25:50,279 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:25:50,279 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:25:49" (2/3) ... [2022-07-23 15:25:50,279 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e1386ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 03:25:50, skipping insertion in model container [2022-07-23 15:25:50,279 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:25:50,279 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:25:50" (3/3) ... [2022-07-23 15:25:50,280 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product33.cil.c [2022-07-23 15:25:50,325 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-23 15:25:50,326 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-23 15:25:50,326 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-23 15:25:50,326 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-23 15:25:50,326 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-23 15:25:50,327 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-23 15:25:50,327 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-23 15:25:50,327 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-23 15:25:50,331 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 109 states, 108 states have (on average 1.3981481481481481) internal successors, (151), 108 states have internal predecessors, (151), 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 15:25:50,355 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 68 [2022-07-23 15:25:50,355 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:25:50,355 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:25:50,362 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:25:50,362 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:25:50,362 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-23 15:25:50,363 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 109 states, 108 states have (on average 1.3981481481481481) internal successors, (151), 108 states have internal predecessors, (151), 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 15:25:50,374 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 68 [2022-07-23 15:25:50,374 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:25:50,374 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:25:50,376 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:25:50,376 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:25:50,383 INFO L752 eck$LassoCheckResult]: Stem: 99#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0; 34#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret10#1, main_~retValue_acc~5#1, main_~tmp~0#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 49#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 102#L68true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 21#L83true main_#t~ret10#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret10#1;havoc main_#t~ret10#1; 4#L276true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 72#L250true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 97#L892true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 74#L465-2true [2022-07-23 15:25:50,383 INFO L754 eck$LassoCheckResult]: Loop: 74#L465-2true assume !false; 105#L466true assume test_~splverifierCounter~0#1 < 4; 108#L467true test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 58#L475true assume !(0 != test_~tmp~3#1); 23#L475-2true test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 77#L485true assume !(0 != test_~tmp___0~1#1); 8#L485-2true test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 20#L495true assume 0 != test_~tmp___2~0#1; 81#L501-2true assume { :begin_inline_timeShift } true; 60#L310true assume !(0 != ~pumpRunning~0); 5#L310-2true assume !(0 != ~systemActive~0); 11#L317-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret49#1, __utac_acc__Specification2_spec__2_#t~ret50#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~7#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 51#L138true __utac_acc__Specification2_spec__2_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~7#1 := __utac_acc__Specification2_spec__2_#t~ret49#1;havoc __utac_acc__Specification2_spec__2_#t~ret49#1; 80#L903true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7#1);~methAndRunningLastTime~0 := 0; 95#L903-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 19#L327true assume { :end_inline_timeShift } true; 74#L465-2true [2022-07-23 15:25:50,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:25:50,389 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-07-23 15:25:50,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:25:50,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672854524] [2022-07-23 15:25:50,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:25:50,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:25:50,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:25:50,499 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:25:50,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:25:50,553 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:25:50,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:25:50,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1986238090, now seen corresponding path program 1 times [2022-07-23 15:25:50,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:25:50,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359172690] [2022-07-23 15:25:50,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:25:50,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:25:50,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:25:50,568 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:25:50,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:25:50,581 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:25:50,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:25:50,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1823950707, now seen corresponding path program 1 times [2022-07-23 15:25:50,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:25:50,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915926296] [2022-07-23 15:25:50,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:25:50,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:25:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:25:50,715 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 15:25:50,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:25:50,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915926296] [2022-07-23 15:25:50,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915926296] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:25:50,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:25:50,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 15:25:50,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389427680] [2022-07-23 15:25:50,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:25:50,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:25:50,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 15:25:50,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-23 15:25:50,851 INFO L87 Difference]: Start difference. First operand has 109 states, 108 states have (on average 1.3981481481481481) internal successors, (151), 108 states have internal predecessors, (151), 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 15:25:50,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:25:50,897 INFO L93 Difference]: Finished difference Result 106 states and 137 transitions. [2022-07-23 15:25:50,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 15:25:50,901 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 137 transitions. [2022-07-23 15:25:50,903 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 64 [2022-07-23 15:25:50,906 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 96 states and 127 transitions. [2022-07-23 15:25:50,907 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 96 [2022-07-23 15:25:50,907 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 96 [2022-07-23 15:25:50,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 96 states and 127 transitions. [2022-07-23 15:25:50,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:25:50,908 INFO L369 hiAutomatonCegarLoop]: Abstraction has 96 states and 127 transitions. [2022-07-23 15:25:50,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states and 127 transitions. [2022-07-23 15:25:50,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2022-07-23 15:25:50,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 96 states have (on average 1.3229166666666667) internal successors, (127), 95 states have internal predecessors, (127), 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 15:25:50,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 127 transitions. [2022-07-23 15:25:50,931 INFO L392 hiAutomatonCegarLoop]: Abstraction has 96 states and 127 transitions. [2022-07-23 15:25:50,932 INFO L374 stractBuchiCegarLoop]: Abstraction has 96 states and 127 transitions. [2022-07-23 15:25:50,932 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-23 15:25:50,932 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states and 127 transitions. [2022-07-23 15:25:50,934 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 64 [2022-07-23 15:25:50,934 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:25:50,934 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:25:50,935 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:25:50,935 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] [2022-07-23 15:25:50,936 INFO L752 eck$LassoCheckResult]: Stem: 323#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0; 316#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret10#1, main_~retValue_acc~5#1, main_~tmp~0#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 317#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 326#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 294#L83 main_#t~ret10#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret10#1;havoc main_#t~ret10#1; 236#L276 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 237#L250 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 288#L892 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 285#L465-2 [2022-07-23 15:25:50,937 INFO L754 eck$LassoCheckResult]: Loop: 285#L465-2 assume !false; 293#L466 assume test_~splverifierCounter~0#1 < 4; 327#L467 test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 246#L475 assume !(0 != test_~tmp~3#1); 248#L475-2 test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 297#L485 assume !(0 != test_~tmp___0~1#1); 255#L485-2 test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 256#L495 assume 0 != test_~tmp___2~0#1; 291#L501-2 assume { :begin_inline_timeShift } true; 253#L310 assume !(0 != ~pumpRunning~0); 238#L310-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 239#L342 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 304#L334-1 assume { :end_inline_processEnvironment__wrappee__base } true; 261#L342-1 assume { :end_inline_processEnvironment } true; 262#L317-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret49#1, __utac_acc__Specification2_spec__2_#t~ret50#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~7#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 264#L138 __utac_acc__Specification2_spec__2_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~7#1 := __utac_acc__Specification2_spec__2_#t~ret49#1;havoc __utac_acc__Specification2_spec__2_#t~ret49#1; 305#L903 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7#1);~methAndRunningLastTime~0 := 0; 242#L903-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 284#L327 assume { :end_inline_timeShift } true; 285#L465-2 [2022-07-23 15:25:50,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:25:50,939 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-07-23 15:25:50,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:25:50,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872888256] [2022-07-23 15:25:50,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:25:50,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:25:50,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:25:50,955 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:25:51,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:25:51,009 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:25:51,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:25:51,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1458489579, now seen corresponding path program 1 times [2022-07-23 15:25:51,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:25:51,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076271557] [2022-07-23 15:25:51,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:25:51,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:25:51,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:25:51,022 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 15:25:51,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:25:51,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076271557] [2022-07-23 15:25:51,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076271557] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:25:51,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:25:51,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 15:25:51,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610950774] [2022-07-23 15:25:51,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:25:51,023 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-23 15:25:51,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:25:51,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 15:25:51,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 15:25:51,024 INFO L87 Difference]: Start difference. First operand 96 states and 127 transitions. cyclomatic complexity: 33 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 15:25:51,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:25:51,066 INFO L93 Difference]: Finished difference Result 151 states and 195 transitions. [2022-07-23 15:25:51,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 15:25:51,068 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 151 states and 195 transitions. [2022-07-23 15:25:51,069 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2022-07-23 15:25:51,070 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 151 states to 151 states and 195 transitions. [2022-07-23 15:25:51,070 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 151 [2022-07-23 15:25:51,070 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 151 [2022-07-23 15:25:51,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 151 states and 195 transitions. [2022-07-23 15:25:51,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:25:51,071 INFO L369 hiAutomatonCegarLoop]: Abstraction has 151 states and 195 transitions. [2022-07-23 15:25:51,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states and 195 transitions. [2022-07-23 15:25:51,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2022-07-23 15:25:51,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 151 states have (on average 1.2913907284768211) internal successors, (195), 150 states have internal predecessors, (195), 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 15:25:51,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 195 transitions. [2022-07-23 15:25:51,076 INFO L392 hiAutomatonCegarLoop]: Abstraction has 151 states and 195 transitions. [2022-07-23 15:25:51,076 INFO L374 stractBuchiCegarLoop]: Abstraction has 151 states and 195 transitions. [2022-07-23 15:25:51,076 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-23 15:25:51,076 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 151 states and 195 transitions. [2022-07-23 15:25:51,077 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2022-07-23 15:25:51,077 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:25:51,077 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:25:51,077 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:25:51,077 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] [2022-07-23 15:25:51,078 INFO L752 eck$LassoCheckResult]: Stem: 580#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0; 569#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret10#1, main_~retValue_acc~5#1, main_~tmp~0#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 570#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 585#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 546#L83 main_#t~ret10#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret10#1;havoc main_#t~ret10#1; 488#L276 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 489#L250 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 540#L892 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 578#L465-2 [2022-07-23 15:25:51,078 INFO L754 eck$LassoCheckResult]: Loop: 578#L465-2 assume !false; 602#L466 assume test_~splverifierCounter~0#1 < 4; 589#L467 test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 498#L475 assume !(0 != test_~tmp~3#1); 500#L475-2 test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 549#L485 assume !(0 != test_~tmp___0~1#1); 507#L485-2 test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 508#L495 assume 0 != test_~tmp___2~0#1; 543#L501-2 assume { :begin_inline_timeShift } true; 505#L310 assume !(0 != ~pumpRunning~0); 506#L310-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 557#L342 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; 554#L178 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; 552#L183 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 553#L444 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 527#L444-2 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 528#L450 processEnvironment_#t~ret11#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~1#1 := processEnvironment_#t~ret11#1;havoc processEnvironment_#t~ret11#1; 548#L346 assume !(0 != processEnvironment_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 555#L334 assume { :end_inline_processEnvironment__wrappee__base } true; 556#L342-1 assume { :end_inline_processEnvironment } true; 614#L317-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret49#1, __utac_acc__Specification2_spec__2_#t~ret50#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~7#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 610#L138 __utac_acc__Specification2_spec__2_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~7#1 := __utac_acc__Specification2_spec__2_#t~ret49#1;havoc __utac_acc__Specification2_spec__2_#t~ret49#1; 607#L903 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7#1);~methAndRunningLastTime~0 := 0; 604#L903-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 603#L327 assume { :end_inline_timeShift } true; 578#L465-2 [2022-07-23 15:25:51,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:25:51,078 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-07-23 15:25:51,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:25:51,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865467049] [2022-07-23 15:25:51,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:25:51,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:25:51,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:25:51,113 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:25:51,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:25:51,124 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:25:51,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:25:51,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1445918989, now seen corresponding path program 1 times [2022-07-23 15:25:51,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:25:51,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122987880] [2022-07-23 15:25:51,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:25:51,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:25:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:25:51,129 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:25:51,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:25:51,133 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:25:51,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:25:51,134 INFO L85 PathProgramCache]: Analyzing trace with hash -176468950, now seen corresponding path program 1 times [2022-07-23 15:25:51,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:25:51,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368088981] [2022-07-23 15:25:51,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:25:51,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:25:51,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:25:51,151 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:25:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:25:51,163 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:25:53,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.07 03:25:53 BoogieIcfgContainer [2022-07-23 15:25:53,596 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-23 15:25:53,597 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 15:25:53,597 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 15:25:53,597 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 15:25:53,598 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:25:50" (3/4) ... [2022-07-23 15:25:53,600 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-23 15:25:53,650 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-23 15:25:53,650 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 15:25:53,651 INFO L158 Benchmark]: Toolchain (without parser) took 4277.87ms. Allocated memory was 144.7MB in the beginning and 207.6MB in the end (delta: 62.9MB). Free memory was 109.0MB in the beginning and 99.5MB in the end (delta: 9.5MB). Peak memory consumption was 72.6MB. Max. memory is 16.1GB. [2022-07-23 15:25:53,651 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 144.7MB. Free memory was 117.1MB in the beginning and 117.1MB in the end (delta: 30.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 15:25:53,651 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.75ms. Allocated memory is still 144.7MB. Free memory was 108.7MB in the beginning and 109.7MB in the end (delta: -992.8kB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2022-07-23 15:25:53,652 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.23ms. Allocated memory is still 144.7MB. Free memory was 109.7MB in the beginning and 106.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 15:25:53,652 INFO L158 Benchmark]: Boogie Preprocessor took 18.86ms. Allocated memory is still 144.7MB. Free memory was 106.9MB in the beginning and 105.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 15:25:53,653 INFO L158 Benchmark]: RCFGBuilder took 523.15ms. Allocated memory is still 144.7MB. Free memory was 104.8MB in the beginning and 86.7MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-23 15:25:53,653 INFO L158 Benchmark]: BuchiAutomizer took 3322.82ms. Allocated memory was 144.7MB in the beginning and 207.6MB in the end (delta: 62.9MB). Free memory was 86.7MB in the beginning and 102.7MB in the end (delta: -15.9MB). Peak memory consumption was 77.4MB. Max. memory is 16.1GB. [2022-07-23 15:25:53,653 INFO L158 Benchmark]: Witness Printer took 53.04ms. Allocated memory is still 207.6MB. Free memory was 102.7MB in the beginning and 99.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-23 15:25:53,654 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 144.7MB. Free memory was 117.1MB in the beginning and 117.1MB in the end (delta: 30.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 319.75ms. Allocated memory is still 144.7MB. Free memory was 108.7MB in the beginning and 109.7MB in the end (delta: -992.8kB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.23ms. Allocated memory is still 144.7MB. Free memory was 109.7MB in the beginning and 106.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.86ms. Allocated memory is still 144.7MB. Free memory was 106.9MB in the beginning and 105.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 523.15ms. Allocated memory is still 144.7MB. Free memory was 104.8MB in the beginning and 86.7MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 3322.82ms. Allocated memory was 144.7MB in the beginning and 207.6MB in the end (delta: 62.9MB). Free memory was 86.7MB in the beginning and 102.7MB in the end (delta: -15.9MB). Peak memory consumption was 77.4MB. Max. memory is 16.1GB. * Witness Printer took 53.04ms. Allocated memory is still 207.6MB. Free memory was 102.7MB in the beginning and 99.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 151 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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, 622 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 622 mSDsluCounter, 350 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 78 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29 IncrementalHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 272 mSDtfsCounter, 29 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 465]: 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@4d77ae49=0, tmp___0=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, methaneLevelCritical=0, tmp=1, tmp=0, \result=0, retValue_acc=1, retValue_acc=1, \result=1, \result=1, retValue_acc=0, retValue_acc=0, tmp___2=29, methAndRunningLastTime=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@590c8bc3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55a8545f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@569ba835=0, cleanupTimeShifts=4, tmp=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4bd7dbd4=0, \result=0, tmp=0, head=0, tmp___1=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74654799=0, waterLevel=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7965dc81=0, systemActive=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56158434=29, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6242da43=0, tmp___0=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 465]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L95] int waterLevel = 1; [L96] int methaneLevelCritical = 0; [L189] int cleanupTimeShifts = 4; [L302] int pumpRunning = 0; [L303] int systemActive = 1; [L689] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L886] int methAndRunningLastTime ; [L267] int retValue_acc ; [L268] int tmp ; [L272] FCALL select_helpers() [L273] FCALL select_features() [L274] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L274] RET, EXPR valid_product() [L274] tmp = valid_product() [L276] COND TRUE \read(tmp) [L278] FCALL setup() [L279] CALL runTest() [L260] CALL __utac_acc__Specification2_spec__1() [L891] methAndRunningLastTime = 0 [L260] RET __utac_acc__Specification2_spec__1() [L261] CALL test() [L456] int splverifierCounter ; [L457] int tmp ; [L458] int tmp___0 ; [L459] int tmp___1 ; [L460] int tmp___2 ; [L463] splverifierCounter = 0 Loop: [L465] COND TRUE 1 [L467] COND TRUE splverifierCounter < 4 [L473] tmp = __VERIFIER_nondet_int() [L475] COND FALSE !(\read(tmp)) [L483] tmp___0 = __VERIFIER_nondet_int() [L485] COND FALSE !(\read(tmp___0)) [L493] tmp___2 = __VERIFIER_nondet_int() [L495] COND TRUE \read(tmp___2) [L508] CALL timeShift() [L310] COND FALSE !(\read(pumpRunning)) [L317] COND TRUE \read(systemActive) [L319] CALL processEnvironment() [L339] int tmp ; [L342] COND TRUE ! pumpRunning [L344] CALL, EXPR isHighWaterLevel() [L436] int retValue_acc ; [L437] int tmp ; [L438] int tmp___0 ; [L442] CALL, EXPR isHighWaterSensorDry() [L175] int retValue_acc ; [L178] COND TRUE waterLevel < 2 [L179] retValue_acc = 1 [L180] return (retValue_acc); [L442] RET, EXPR isHighWaterSensorDry() [L442] tmp = isHighWaterSensorDry() [L444] COND TRUE \read(tmp) [L445] tmp___0 = 0 [L449] retValue_acc = tmp___0 [L450] return (retValue_acc); [L344] RET, EXPR isHighWaterLevel() [L344] tmp = isHighWaterLevel() [L346] COND FALSE !(\read(tmp)) [L352] FCALL processEnvironment__wrappee__base() [L319] RET processEnvironment() [L325] CALL __utac_acc__Specification2_spec__2() [L896] int tmp ; [L897] int tmp___0 ; [L901] CALL, EXPR isMethaneLevelCritical() [L134] int retValue_acc ; [L137] retValue_acc = methaneLevelCritical [L138] return (retValue_acc); [L901] RET, EXPR isMethaneLevelCritical() [L901] tmp = isMethaneLevelCritical() [L903] COND FALSE !(\read(tmp)) [L919] methAndRunningLastTime = 0 [L325] RET __utac_acc__Specification2_spec__2() [L508] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-23 15:25:53,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)